Articoli di riviste: "P96"

1

Knol, Linda, e Karen Lilly. "P96". Journal of Nutrition Education and Behavior 38, n. 4 (luglio 2006): S53. http://dx.doi.org/10.1016/j.jneb.2006.04.103.

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McBride, Corrigan L., Chad Ringley, Christa Black e Jon Thompson. "P96". Surgery for Obesity and Related Diseases 2, n. 3 (maggio 2006): 341. http://dx.doi.org/10.1016/j.soard.2006.04.172.

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3

Ben-Meir, Aviv, Dawn M. Miller, Helmut Schreiber, I. M. Sonpal, Karen Schulz e John B. Marshall. "P96". Surgery for Obesity and Related Diseases 3, n. 3 (maggio 2007): 331. http://dx.doi.org/10.1016/j.soard.2007.03.164.

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4

Nikitenko, T., O. Rymar, S. Malyutina, L. Shcherbakova, E. Veryovkin, S. Kurilovich, Yu Ragino e M. Voevoda. "P96". European Journal of Cancer Supplements 13, n. 1 (novembre 2015): 39–40. http://dx.doi.org/10.1016/j.ejcsup.2015.08.070.

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5

Azpurua, H., M. Y. Suh, S. Kunisaki, B. Modi, J. Gutweiler, M. Misra, A. Exarhoupoulos, M. Moses e H. B. Kim. "P96". Journal of Surgical Research 137, n. 2 (febbraio 2007): 276. http://dx.doi.org/10.1016/j.jss.2006.12.325.

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6

Kao, Chi-Fei, Hue-Ying Chiou, Yen-Chen Chang, Cheng-Shun Hsueh, Chian-Ren Jeng, Pei-Shiue Tsai, Ivan-Chen Cheng, Victor Pang e Hui-Wen Chang. "The Characterization of Immunoprotection Induced by a cDNA Clone Derived from the Attenuated Taiwan Porcine Epidemic Diarrhea Virus Pintung 52 Strain". Viruses 10, n. 10 (4 ottobre 2018): 543. http://dx.doi.org/10.3390/v10100543.

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The porcine epidemic diarrhea virus (PEDV) poses a great threat to the global swine industries and the unreliable protection induced by the currently available vaccines remains a major challenge. We previously generated a genogroup 2b (G2b) PEDV Taiwan Pintung 52 (PEDVPT) strain, PEDVPT-P96, and determined its promising host immune response against the virulent PEDVPT-P5 strain. To study the attenuation determinants of PEDVPT-P96 and establish a PEDVPT-P96-based recombinant vector as a vaccine platform for further antigenicity modification, iPEDVPT-P96, a full-length cDNA clone of PEDVPT-P96, was established. Comparing to the parental PEDVPT-P96 virus, the iPEDVPT-P96 virus showed efficient replication kinetics with a delayed decline of viral load and similar but much more uniform plaque sizes in Vero cells. In the 5-week-old piglet model, fecal viral shedding was observed in the PEDVPT-P96-inoculated piglets, whereas those inoculated with iPEDVPT-P96 showed neither detectable fecal viral shedding nor PEDV-associated clinical signs. Moreover, inoculation with iPEDVPT-P96 elicited comparable levels of anti-PEDV specific plasma IgG and fecal/salivary IgA, neutralizing antibody titers, and similar but less effective immunoprotection against the virulent PEDVPT-P5 challenge compared to the parental PEDVPT-P96. In the present study, an infectious cDNA clone of an attenuated G2b PEDV strain was successfully generated for the first time, and the in vitro and in vivo data indicate that iPEDVPT-P96 is further attenuated but remains immunogenic compared to its parental PEDVPT-P96 viral stock. The successful development of the iPEDVPT-P96 cDNA clone could allow for the manipulation of the viral genome to study viral pathogenesis and facilitate the rapid development of effective vaccines.

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Wagner, Ida J., Terry M. Myckatyn, Babak J. Mehrara, Melissa A. Crosby, Julie E. Park, Dominic T. Moore, Bahjat F. Qaqish et al. "Abstract P96". Plastic and Reconstructive Surgery 135 (aprile 2015): 1257. http://dx.doi.org/10.1097/01.prs.0000463416.33836.50.

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Wagner, Ida J., Terry M. Myckatyn, Babak J. Mehrara, Melissa A. Crosby, Julie E. Park, Dominic T. Moore, Bahjat F. Qaqish et al. "Abstract P96". Plastic and Reconstructive Surgery 135, n. 4 (aprile 2015): 1257. http://dx.doi.org/10.1097/01.prs.0000464065.87471.b3.

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9

Zhe-Ming, Yuan, Meng Xiao-Lin e Liu Shu-Sheng. "Biological characteristics of recombinant enhancin ofTrichoplusia nigranulovirus expressed inEscherichia coli". Chinese Journal of Agricultural Biotechnology 3, n. 3 (dicembre 2006): 171–76. http://dx.doi.org/10.1079/cjb2006105.

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AbstractA recombinant enhancin fromTrichoplusia nigranulovirus, expressed inEscherichia coliand named P96, had been shown in a previous study to increase significantly the efficacy of bio-insecticides applied to insect pests. Here, several biological characteristics were clarified to provide further proof for the activities of P96. The inclusion bodies formed by P96 were quite stable when expressed inE. coli; however, they could be effectively dissolved in sodium carbonate (Na2CO3) solution or in the midgut digestive secretion of the fifth-instar larvae of the cotton bollworm,Helicoverpa armigera,in vitro. According to sodium dodecyl sulphate–polyacrylamide gel electrophoresis (SDS-PAGE), the peritrophic membrane of the cotton bollworm was clearly decomposed by P96. With the increase of P96 concentration, the mortality of the cotton bollworm caused by nuclear polyhedrosis virus increased up to its saturation concentration, 6.76×105inclusion bodies/ml. The bioactivity of P96 was strongly inhibited by ethylenediaminetetraacetic acid (EDTA), which formed a complex compound with the metal ion (Zn2+) in the protein.

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10

Meng, Ran, Danlu Zhang, Jianbo Ji, Lingyun Hu, Dequn Sun e Haina Wang. "Enantioselective Plasma Pharmacokinetic Study of a Novel Anti- Sichistosomiasis Agent P96 in Rat by Liquid Chromatography-tandem Mass Spectrometry". Current Pharmaceutical Analysis 15, n. 4 (19 marzo 2019): 379–87. http://dx.doi.org/10.2174/1573412914666180608093636.

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Background: 2-Cyclopentanecarbonyl-1,2,3,6,7,11b-hexahydro-pyrazino[2,1- a]isoquinolin- 4-one (P96), was found to be a novel drug candidate with one chiral center to treat schistosomiasis caused by Schistosoma japonicum. </P><P> Objective: To study pharmacokinetic characteristics, a simple, rapid and sensitive liquid chromatography- tandem mass spectrometry (LC-MS/MS) method was developed and fully validated for the quantification analysis of P96 in rat plasma. Methods: Chromatographic separation was performed on a C18 column with gradient eluted mobile phase composed of acetonitrile and water at a flow rate of 0.5 mL/min. Detection was performed on a triple-quadrupole tandem mass spectrometer using positive mode electrospray ionization in the multiple reactions monitoring (MRM) mode. Results: Excellent linearity was observed in the range of 3-900 ng/mL with the lower limit of quantification of 3 ng/mL in rat plasma for P96. The intra- and inter-day precisions exhibited less than 6.6%. Mean recoveries ranged from 96.9% to 102.4%. This method was applied to investigate the enantioselective differences on the pharmacokinetics between (R,S)-P96 and its enantiomers in rats after oral administration. The enantioselective differences of (R)-P96, (S)-P96 and (R,S)-P96 were found and compared. Conclusion: The established method was found to be accurate, precise, and sensitive and can be applied to investigate the stereoselective differences on pharmacokinetics between rac-P96 and its enantiomers.

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Xu, Jing, Lan-Lan Dong, Huan Sun, Ping Huang, Run-Ze Zhang, Xin-Yi Wang, De-Qun Sun e Chao-Ming Xia. "Small change, big difference: A promising praziquantel derivative designated P96 with broad-spectrum antischistosomal activity for chemotherapy of schistosomiasis japonica". PLOS Neglected Tropical Diseases 17, n. 7 (6 luglio 2023): e0011215. http://dx.doi.org/10.1371/journal.pntd.0011215.

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Background Praziquantel (PZQ) has been the first line antischistosomal drug for all species of Schistosoma, and the only available drug for schistosomiasis japonica, without any alternative drugs since the 1980s. However, PZQ cannot prevent reinfection, and cannot cure schistosomiasis thoroughly because of its poor activity against juvenile schistosomes. In addition, reliance on a single drug is extremely dangerous, the development and spread of resistance to PZQ is becoming a great concern. Therefore, development of novel drug candidates for treatment and control of schistosomiasis is urgently needed. Methodologys/principal findings One of the PZQ derivative christened P96 with the substitution of cyclohexyl by cyclopentyl was synthesized by School of Pharmaceutical Sciences of Shandong University. We investigated the in vitro and in vivo activities of P96 against different developmental stages of S. japonicum. Parasitological studies and scanning electron microscopy were used to study the primary action characteristics of P96 in vitro. Both mouse and rabbit models were employed to evaluate schistosomicidal efficacy of P96 in vivo. Besides calculation of worm reduction rate and egg reduction rate, quantitative real-time PCR was used to evaluate the in vivo antischistosomal activity of P96 at molecular level. In vitro, after 24h exposure, P96 demonstrated the highest activities against both juvenile and adult worm of S. japonicum in comparison to PZQ. The antischistosomal efficacy was concentration-dependent, with P96 at 50μM demonstrating the most evident schistosomicidal effect. Scanning electron microscopy demonstrated that P96 caused more severe damages to schistosomula and adult worm tegument compared to PZQ. In vivo, our results showed that P96 was effective against S. japonicum at all developmental stages. Notably, its efficacy against young stage worms was significantly improved compared to PZQ. Moreover, P96 retained the high activity comparable to PZQ against the adult worm of S. japonicum. Conclusions P96 is a promising drug candidate for chemotherapy of schistosomiasis japonica, which has broad spectrum of action against various developmental stage, potentially addressing the deficiency of PZQ. It might be promoted as a drug candidate for use either alone or in combination with PZQ for the treatment of schistosomiasis.

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Kao, Chi-Fei, e Hui-Wen Chang. "Investigation of the Role of the Spike Protein in Reversing the Virulence of the Highly Virulent Taiwan Porcine Epidemic Diarrhea Virus Pintung 52 Strains and Its Attenuated Counterpart". Viruses 12, n. 1 (30 dicembre 2019): 41. http://dx.doi.org/10.3390/v12010041.

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Porcine epidemic diarrhea virus (PEDV) has continuously caused severe economic losses to the global swine industries; however, no successful vaccine against PEDV has been developed. In this study, we generated four autologous recombinant viruses, including the highly virulent iPEDVPT-P5, attenuated iPEDVPT-P96, and two chimeric viruses (iPEDVPT-P5-96S and iPEDVPT-P96-5S) with the reciprocally exchanged spike (S) gene, to study the role of the S gene in PEDV pathogenesis. A deeper understanding of PEDV attenuation will aid in the rational design of a live attenuated vaccine (LAV) using reverse genetics system. Our results showed that replacing the S gene from the highly virulent iPEDVPT-P5 led to complete restoration of virulence of the attenuated iPEDVPT-P96, with nearly identical viral shedding, diarrhea pattern, and mortality rate as the parental iPEDVPT-P5. In contrast, substitution of the S gene with that from the attenuated iPEDVPT-P96 resulted in partial attenuation of iPEDVPT-P5, exhibiting similar viral shedding and diarrhea patterns as the parental iPEDVPT-P96 with slightly severe histological lesions and higher mortality rate. Collectively, our data confirmed that the attenuation of the PEDVPT-P96 virus is primarily attributed to mutations in the S gene. However, mutation in S gene alone could not fully attenuate the virulence of iPEDVPT-P5. Gene (s) other than S gene might also play a role in determining virulence.

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ALLARY, M., J. SCHREVEL e I. FLORENT. "Properties, stage-dependent expression and localization of Plasmodium falciparum M1 family zinc-aminopeptidase". Parasitology 125, n. 1 (luglio 2002): 1–10. http://dx.doi.org/10.1017/s0031182002001828.

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A Plasmodium falciparum single copy gene predicting a 122 kDa protein belonging to the M1 family of zinc-metallopeptidases was previously reported and related to erythrocytic schizont proteins of 96 (p96) and 68 (p68) kDa. By using protease inhibitors during parasite harvest and enzyme preparations, and polyclonal antibodies specific for 2 peptidic domains deduced from the gene, we identified the 120 kDa precursor and demonstrated its processing into p96 and p68. The N-terminal ends of p96 and p68 were mapped between glycine-123 and lysine-163, both proteins thus containing the catalytic domain. The purified enzyme, here named PfA-M1 (p96/p68), displayed strict aminopeptidase activity, optimal at pH 7·4, with broad substrate spectrum. Its inhibition and reactivation profiles were typical of zinc-metalloaminopeptidases. By Western blotting, PfA-M1 was detected in trophozoites, in addition to schizonts, but not in early rings. PfA-M1 was localized by indirect immunofluorescence confocal microscopy. In trophozoites, the labelling was diffuse in the parasite cytoplasm, with accumulations around the food vacuole. In schizonts, it turned progressively to a vesicle-like pattern, ending as a clear spot in released merozoites. The involvement of PfA-M1 in haemoglobin breakdown and erythrocyte reinvasion is discussed in light of the dual functions recently reported for several P. falciparum proteases.

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Rutten, Geert, Janneke Harting, Rob Oostendorp e Nanne de Vries. "P96– Guideline implementation in physical therapy". Otolaryngology–Head and Neck Surgery 143, n. 1_suppl (luglio 2010): 128. http://dx.doi.org/10.1016/j.otohns.2010.04.120.

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CHO, Si Young, Jae Won JEON, Sang Ho LEE e Sung Soo PARK. "p67 isoform of mouse disabled 2 protein acts as a transcriptional activator during the differentiation of F9 cells". Biochemical Journal 352, n. 3 (8 dicembre 2000): 645–50. http://dx.doi.org/10.1042/bj3520645.

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The mouse disabled 2 (mDab2) gene is a mouse homologue of the Drosophila disabled gene and is alternatively spliced to form two isoforms, p96 and p67. Although p96 has been known to regulate the RasŐSos G-protein signal transduction pathway by interacting with Grb2, little is known about the biological function of p67. Recent studies have shown that the expression of mDab2 is markedly up-regulated during the retinoic acid (RA)-induced differentiation of F9 cells, suggesting another role for mDab2 in cell differentiation [Cho, Lee and Park (1999) Mol. Cells 9, 179Ő184). In the present study, we first elucidated the biological function of p67 isoform of mDab2 and identified its binding partner. Unlike p96, p67 largely resides in RA-treated F9 cell nuclei. In this system, p67 interacts with mouse androgen-receptor interacting protein 3, termed the mDab2 interacting protein, which acts as a transcriptional co-regulator. By using a fusion protein with a heterologous DNA-binding domain (GAL4), we showed that p67 had an intrinsic transcriptional activation function. These results suggest that mDab2 p67 may function as a transcriptional co-factor for certain complexes of transcriptional regulatory elements involved in the RA-induced differentiation of F9 cells.

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Zheng, Xiaomin, Saskia Güller, Gesine Bug, Bithia Grace, Roxana Bistrian, Dieter Hoelzer, Oliver G. Ottmann, Reinhard Henschler e Martin Ruthardt. "The Reciprocal t(9;22)-Translocation Products ABL/BCR Have Leukemogenic Potential Independently from BCR/ABL." Blood 104, n. 11 (16 novembre 2004): 214. http://dx.doi.org/10.1182/blood.v104.11.214.214.

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Abstract In 95% of chronic myeloid leukemia (CML) and in 25% of acute lymphatic leukemia (ALL) the t(9;22) translocation fuses the bcr gene on chromosome 22 to the abl gene on chromosome 9 and vice versa. On 22+ the different breakpoints leads to the formation of two different major fusion genes: the major breakpoint (M-bcr) related to CML and the minor (m-bcr) related to ALL. The chimaeric fusion gene on 22+ (Philadelphia-chromosome) encodes for the BCR/ABL protein, the p210(BCR/ABL) in CML and the p185(BCR/ABL) in Ph+ALL. The fusion gene on 9+ encodes for the reciprocal ABL/BCR proteins, the p40(ABL/BCR) in CML and the p96(ABL/BCR) in Ph+ALL. The respective ABL/BCR transcripts are detectable in 65% of CML and 100% of Ph+ ALL patients. The ABL/BCRs are BCR mutants and thus N-terminally truncated Rho-guanine-nucleotide exchange factors (Rho-GEF’s). It is known that the N-terminal truncation can confer transformation potential to Rho-GEFs, such as NET-1. In addition, both ABL/BCRs, like wt BCR, contain a C-terminal Rac-GTPase activating protein (GAP)-domain. CML-associated ABL/BCR (p96(ABL/BCR)) differs from the Ph+ ALL-associated p40(ABL/BCR) in that that it misses the ‘dbl homology domain’(DH domains) of potential oncogenic function. Hence it seems that Ph+ALL blasts, in contrast to CML-blasts, express, as a consequence of t(9;22) translocation, two oncogenic fusion proteins, the p185(BCR-ABL) as well as the p40(ABL/BCR) protein. Actually nothing is known about the contribution of the reciprocal t(9;22) translocation products to the CML- and the ALL-phenotype. Thus we studied the phenotype induced by the ABL/BCRs in hemopoietic progenitors. Here we report that both ABL/BCRs i) lost the capacity of wt BCR to suppress the activation of RAC by its Rac-GAP domain, but did not influence the activation status of Rho or cdc42; ii) as a consequence of the deregulation of Rac the cytoskeleton modelling by BCR (Filopodia - cdc42-like phenotype) was altered in p40(ABL/BCR)- and p96(ABL/BCR)-expressing fibroblasts (stress fibers - Rho-like phenotype and “microspikes”, respectively); iii) the increase of migration of BCR-expressing 32D cells into a stroma cell-spheroid model was reverted in p40(ABL/BCR)- and p96(ABL/BCR)-expressing 32D cells; iv) adhesion to TNFalpha activated endothelial cell layer in the “flow chamber” was increased in BCR-positive 32D cells but not in p40(ABL/BCR)- and p96(ABL/BCR)-positive cells. Regarding their leukemogenic potential we showed that i) both ABL/BCRs, in contrast to wt BCR, activated RAS; ii) both ABL/BCRs were unable to transform fibroblasts and to render Ba/F3 cells factor-independent. iii) p96(ABL/BCR) increased the replating efficiency of Sca1+/lin- hemopoietic stem cells (HSC) by selecting a population of immature HSC exclusively expressing c-kit and Sca-1 more strongly than p40(ABL/BCR); iv.) both ABL/BCR blocked the myeloid differentiation of HSC v) the inoculation of p96(ABL/BCR)- or p40(ABL/BCR)-expressing HSC into lethally irradiated recipient mice led in the 40% and 60% of the cases, respectively, to a clinical picture of either acute leukemia or myeloproliferative syndrome within 2–9 months. These data show for the first time that the t(9;22) leads to two leukemogenic fusion proteins - the BCR/ABL and the ABL/BCR - in CML as well as in Ph+ALL, which might represent an additional target for molecular therapy approaches.

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Maddison, J., V. Straub, H. Lochmüller, D. Turnbull, P. Chinnery, M. Trennell, R. McFarland, G. Gorman, R. Horvath e K. Busbhy. "P96 Clinical research activity in Newcastle MRC centre". Neuromuscular Disorders 22 (marzo 2012): S33—S34. http://dx.doi.org/10.1016/s0960-8966(12)70104-9.

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Herson, Jay, e Michael Silverman. "P96 Biostatistical/clinical issues in global drug development". Controlled Clinical Trials 16, n. 3 (giugno 1995): 127S. http://dx.doi.org/10.1016/0197-2456(95)90576-q.

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Windhorst, Rogier A., Sam M. Pascarelle e William C. Keel. "Deep HST Imaging of a Galaxy Cluster at z = 2.40". Symposium - International Astronomical Union 171 (1996): 474–75. http://dx.doi.org/10.1017/s0074180900233925.

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We present a 67-orbit HST/WFPC2 exposure on the weak radio galaxy 53W002 at z=2.390 and its surrounding cluster. Color Plate 1 shows 12 orbits in IF814W & VF606W, and 24 in BF450W. Potential cluster members were identified through 15 orbits in F410M, optimized for narrow-band searches for compact Lyα objects at z≃2.4 (P96), and confirmed through spectroscopy (W91, P96); 16 candidates were found with significant narrow-band emission in F410M: 4 out of 5 had a confirming MMT spectroscopic redshift at z≃2.40 (P96). All are located within 60″ from 53W002, or ∼ 0.24h–1100 Mpc (qo=0.5) at z ≃2.4, the physical scale of a group or small galaxy cluster. One object contains a weak (variable) AGN, another is a merger with two companions. Their underlying young stellar population is very compact, with rh.l. ≃0.2″ (≃ 0.8h–1100 kpc), and considerably fainter than the L∗-value at z∼2.4, implying sub-galactic sized objects. These results may explain why ground-based Lya searches for PG's have been largely unsuccessful. The narrow-line galaxy 53W002 was imaged in the PC at ∼0.07″ FWHM (WK95, see also W94). Its AGN component is ≤ 20±4% of the total continuum, surrounded by an extended r1/4-envelope with rh.l. ≃1.1″ (4.3 kpc), and has an SED of ∼0.3 Gyr in the center to ∼0.5-1.0 Gyr at ∼4 kpc. A one-sided cloud is seen ∼1.8 kpc West, ∼0.3 mag bluer than the SED, aligned with the radio source and its Ly-α cloud, presumably weak scattered AGN light, and/or jet-induced star-formation.

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Brodke, Darrel S., William Sandul, Stephen Ritter e Kent Bachus. "P96. Evaluating global cervical kinematics following total disc replacement". Spine Journal 5, n. 4 (luglio 2005): S158. http://dx.doi.org/10.1016/j.spinee.2005.05.311.

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Charkaluk, M. L., M. Akoum Moukahal, C. Barbier, R. El Kohen, N. Kalach e O. Kremp. "P96 Urgences — Réanimation Accidents sportifs de l'enfant et prevention". Archives de Pédiatrie 10 (maggio 2003): s302. http://dx.doi.org/10.1016/s0929-693x(03)90608-7.

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KAMBACH, B. "P96. Pedicle subtraction osteotomy: therapeutic option for flatback syndrome". Spine Journal 3, n. 5 (settembre 2003): 131. http://dx.doi.org/10.1016/s1529-9430(03)00316-4.

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Oaks, Z., R. Hanczko, M. Beckford, S. K. Chung, S. K. Landas, J. M. Asara e A. Perl. "P96 ALDOSE REDUCTASE CONTRIBUTES TO HEPATOCARCINOGENESIS IN TRANSALDOLASE DEFICIENCY". Journal of Hepatology 60, n. 1 (aprile 2014): S98. http://dx.doi.org/10.1016/s0168-8278(14)60259-2.

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Hagan, GC, F. Edwards, J. Nation, H. Kunst, M. Dedicoat e N. Nathani. "P96 Characteristics and outcomes of multi-drug resistant tuberculosis patients in a major urban centre in the UK: Abstract P96 Table 1." Thorax 68, Suppl 3 (14 novembre 2013): A118.2—A118. http://dx.doi.org/10.1136/thoraxjnl-2013-204457.246.

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Kielly, G. A., e S. R. Bowley. "Quantitative genetic analysis of in vitro callus proliferation in alfalfa". Canadian Journal of Plant Science 77, n. 2 (1 aprile 1997): 225–29. http://dx.doi.org/10.4141/p96-001.

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Genetic variability exists for in vitro callus growth within plant species, including alfalfa (Medicago sativa L.). The objective of this study was to investigate, using diallel crosses, the genetic variance components of in vitro callus production in tetraploid alfalfa. Nine genotypes were randomly chosen from among 60 plants from the cultivar Saranac and the experimental population OAC81-120R, which were previously characterized as being able to initiate callus. The group of nine plants was divided and crossed to generate two, six-plant diallel sets (A and B) with reciprocals; and the progeny were evaluated for callus production. Significant (P < 0.01) differences were found among crosses and for general combining ability (GCA) effects in both diallels. Specific combining ability (SCA) and reciprocal effects were found to be nonsignificant (P < 0.05). Estimates of heritability (h2) for callus production on a plot mean basis were 73% and 61% for diallel A and B, respectively. Since the heritabilities were high, and no reciprocal effects were detected, breeding strategies employing recurrent selection should result in the development of high in vitro callus producing populations. Key words: Medicago sativa L., callus proliferation, tissue culture, quantitative genetics, heritability, alfalfa

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Robert, Fabien, Gilles Pétel, Georgette Risser e Michel Gendraud. "Determination of the growth potential of strawberry plants (Fragaria × ananassa Duch.) by morphological and nucleotide measurements in relation to chilling". Canadian Journal of Plant Science 77, n. 1 (1 gennaio 1997): 127–32. http://dx.doi.org/10.4141/p96-002.

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Early strawberry fruit production requires that non-dormant strawberry plants be covered during winter. Two methods were used to study the breaking of dormancy of Elsanta strawberry plants following chilling at temperatures below 8 °C. First, a morphological test using the petiole lengths of plants transferred from a nursery to a growth chamber was used. Second, the nucleotide contents before and after incubation of samples in an adenosine solution were measured by bioluminescence. The results show that these two methods can reveal changes in the growth potential of strawberry plants, and, therefore, the release from dormancy. Key words: Dormancy, strawberry plant, nucleotide, growth potential, Fragaria

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Steppuhn, H., e K. G. Wall. "Grain yields from spring-sown Canadian wheats grown in saline rooting media". Canadian Journal of Plant Science 77, n. 1 (1 gennaio 1997): 63–68. http://dx.doi.org/10.4141/p96-003.

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Farmers seek information about the salt tolerances of wheat. Two greenhouse tests conducted at the Swift Current Salt Tolerance Testing Laboratory determined the response of four spring-sown Canadian wheat cultivars (Katepwa, Biggar, Fielder and Kyle) to increasingly saline rooting media. The first test followed the United States Salinity Laboratory procedure of increasing root-zone salinity gradually after plant emergence, and the second provided full complements of salts before seeding. The plants were grown in sand tanks irrigated four times daily with hydroponic solutions containing salt concentrations of up to 14 dS m−1 equivalent electrical conductivity for saturated soil paste extracts (ECe) Grain yield and plant height began to decline within all cultivars at equivalent ECe-values ranging between 0.5 and 2.5 dS m−1. At 4 dS m−1, grain production dropped to 80% or less of that produced in non-saline rooting media. Kyle and Fielder plants showed slightly more salt tolerance than those of Katepwa or Biggar (i.e., moderately sensitive rather than sensitive). Gradually adding the salts after plant emergence resulted in a tendency for greater salt-tolerance estimates than obtained by subjecting the plants to the full complement of salts at seeding. At the concentrations tested, the salinity affected the number of fertile spikes per plant more than it affected the number of plants reaching harvest. Key words: Salt tolerance, salt resistance, salinity, crop growth modelling, crop response

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McDonald, J. G., J. E. Brandle, S. Gleddie, J. A. Hermans e I. R. Kermali. "Resistance to homologous and heterologous strains of potato virus Y in transgenic tobacco carrying the PVYN coat protein gene". Canadian Journal of Plant Science 77, n. 1 (1 gennaio 1997): 167–71. http://dx.doi.org/10.4141/p96-005.

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Pure breeding lines of transgenic Nicotiana tabacum L. 'Delgold' were generated which expressed transcripts of the coat protein gene of the tobacco veinal necrosis stain of potato virus Y (PVYN) and were highly resistant to the virus. The form of resistance appeared to be RNA-mediated as no coat protein could be detected by enzyme linked immunosorbent assay. Resistant lines had two or three copies of the transgene but segregation analysis of the R1 and R2 progeny indicated that one copy in each line was functional for virus resistance. Simultaneous screening of lines for resistance against both PVYN and the heterologous PVYO (common) strain allowed for optimal selection of heterologous strain resistance. Resistance against the PVY-mn and PVY-nn strains and an ungrouped isolate, PVY-136, was less than against the PVYO isolate. The degree of heterologous strain resistance did not appear to directly correlate with the degree of sequence homology previously reported. The lines had no resistance against the related potato virus A and pepper mottle virus. Key words: Resistance to potato virus Y, transgenic, Nicotiana tabacum, enzyme linked immunosorbent assay, monoclonal antibodies

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29

Palonen, Pauliina, e Deborah Buszard. "Current state of cold hardiness research on fruit crops". Canadian Journal of Plant Science 77, n. 3 (1 luglio 1997): 399–420. http://dx.doi.org/10.4141/p96-013.

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Abstract (sommario):

This article gives an overview of the current state of cold hardiness research in fruit crops by reviewing the recently published studies on cold hardiness of both tree fruit and berry crops. Topics discussed include cold hardiness of fruit species, cultivars and different plant organs, biophysical and biochemical aspects of hardiness, evaluation of hardiness, as well as endogenous, cultural and environmental factors affecting cold hardiness in these species. Lack of cold hardiness is a major limiting factor for production of fruit crops in many regions of the world and improved cold hardiness one of the major objectives in numerous breeding programs and research projects. Screening cultivars or selections for cold hardiness is commonly done, and different methods applied to the evaluation of hardiness are discussed. The physical limit of deep supercooling may be a restricting factor for expanding the production of some fruit crops, such as Prunus species and pear. As for biochemical aspects, a relationship between carbohydrates and cold hardiness is most commonly found. Studies have also been made on different hardiness modifying cultural factors including rootstock, crop load, raised beds and application of growth regulators. The latter seems promising for some species. Cold hardiness is an extremely complex phenomenon and understanding different mechanisms involved is critical. Since hardiness is, however, primarily affected by genotype, developing cold-hardy fruit cultivars and effective screening methods for hardiness are essential. Finally, cultural practices may be improved to further enhance hardiness. Key words: Berries, cold hardiness, fruits, small fruits, stress, winter hardiness

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30

Clear, R. M., S. K. Patrick, T. Nowicki, D. Gaba, M. Edney e J. C. Babb. "The effect of hull removal and pearling on Fusarium species and trichothecenes in hulless barley". Canadian Journal of Plant Science 77, n. 1 (1 gennaio 1997): 161–66. http://dx.doi.org/10.4141/p96-014.

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Abstract (sommario):

Fourteen samples consisting of three cultivars of hulless barley (Hordeum vulgare L.), grown commercially in southern Manitoba in 1994, were examined for levels of Fusarium species and seven fusarium trichothecene mycotoxins: deoxynivalenol (DON), diacetoxyscirpenol, 15-acetyldeoxyni-valenol (15ADON), fusarenone-X, HT-2 toxin, neosolaniol and T-2 toxin. Four fractions from each sample were analysed. These consisted of kernels with the hulls still attached, kernels whose hulls had been removed at harvest, kernels that had been dehulled in the laboratory using a deawner, and kernels that had been pearled in the laboratory to 60% of their original weight. A composite sample of the hulls, obtained from the laboratory dehulling, was also tested. Mycotoxins were determined by gas chromatog-raphy-mass spectrometry. DON and 15ADON were the only trichothecenes detected in this study. The greatest numbers of propagules of Fusarium spp. and the highest concentrations of DON and 15ADON were found in the hulls. The average concentrations of F. graminearum Schwabe and DON in barley were reduced: 90 and 49%, respectively, as a consequence of laboratory dehulling; 95 and 59%, respectively, as a result of dehulling during harvest; and 99 and 86%, respectively, as a result of pearling. Results suggest that growing hulless cultivars shows promise for management of mycotoxin problems associated with FHB. Key words: Fusarium graminearum, Fusarium poae, Fusarium avenaceum, deoxynivalenol, 15-acetyldeoxynivalenol, fusarium head blight

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31

Privé, Jean-Pierre, J. A. Sullivan e J. T. A. Proctor. "Seasonal changes in net carbon dioxide exchange rates of Autumn Bliss, a primocane-fruiting red raspberry (Rubus idaeus L.)". Canadian Journal of Plant Science 77, n. 3 (1 luglio 1997): 427–31. http://dx.doi.org/10.4141/p96-022.

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Abstract (sommario):

Seasonal changes in leaf net carbon exchange rate (NCER), stomatal conductance (gs), and intercellular CO2 (ci) were determined for 2-yr-old potted Autumn Bliss (Rubus idaeus L.) plants grown under field conditions. NCER varied inconsistently between leaves which subtended fruiting lateral branches (laterals) and those that did not. In leaves with fruiting laterals, it was lower on three dates, similar on three other dates and once greater than in leaves without fruiting laterals. Evidence of nonstomatal inhibition of photosynthesis was also apparent as leaf NCER and gs fluctuated during the season while ci remained relatively constant. The leaf chlorophyll content increased when fruiting laterals were present, but this did not produce a consistently higher leaf NCER. The SPAD-501 meter provided a rapid and accurate, nondestructive estimate of leaf chlorophyll content for Autumn Bliss red raspberry leaves. Under uniform environmental conditions, all healthy, fully expanded leaves along the primocane had the same photosynthetic potential. Also, leaf age did not influence leaf gas exchange until the leaves started to senesce. Therefore, good light interception throughout the canopy is needed to optimize dry matter production in primocane-fruiting red raspberries. Key words: Rubus idaeus L., primocane-fruiting, leaf gas exchange

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32

Falk, D. E., E. Reinbergs e G. Meatherall. "OAC Elmira winter barley". Canadian Journal of Plant Science 77, n. 4 (1 ottobre 1997): 639–40. http://dx.doi.org/10.4141/p96-023.

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Abstract (sommario):

OAC Elmira is a high-yielding, disease-resistant, hardy winter barley adapted to Southern Ontario. OAC Elmira has good winter hardiness and high hectoliter weight. It has better disease resistance than any of the check cultivars and long straw with a lax, nodding head. It was developed by the Ontario Ministry of Agriculture and Food through the Crop Science Department of the University of Guelph. Key words: Hordeum vulgare L., high yield, disease resistance, winter hardiness

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33

Falk, D. E., G. Meatherall e E. Reinbergs. "OAC Paisley oat". Canadian Journal of Plant Science 77, n. 4 (1 ottobre 1997): 645–46. http://dx.doi.org/10.4141/p96-024.

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Abstract (sommario):

OAC Paisley is a high yielding, lodging resistant, covered oat developed at the Crop Science Department, OAC, University of Guelph. OAC Paisley was selected from the cross of Ogle/OA630-2. It has outyielded the check cultivars over 29 station-years of testing in Ontario, Quebec and the Atlantic Region. OAC Paisley is well adapted to all of Eastern Canada. It has resistance to BYDV and good tolerance to septoria, but is susceptible to crown rust. It should fit well into barley-oat mixtures due to its early maturity and lodging resistance. Key words: Avena sativa L., high yield, lodging resistance, BYDV, septoria

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34

Velasco, L., J. M. Fernández-Martínez e A. De Haro. "Induced variability for C18 unsaturated fatty acids in Ethiopian mustard". Canadian Journal of Plant Science 77, n. 1 (1 gennaio 1997): 91–95. http://dx.doi.org/10.4141/p96-025.

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Abstract (sommario):

The improvement of oil composition for C18 unsaturated fatty acids is one of the most important breeding objectives for the development of high-quality Ethiopian mustard oil. The objective of this research was to induce variability for fatty acid composition in this species using chemical mutagenesis. Seeds of line C-101 were treated with 1% ethylmethane sulfonate and the progenies of 8331 M2 plants were screened for fatty acid composition of the oil with near infrared reflectance spectroscopy followed by gas liquid chromatography on selected plants. Oleic and linoleic desaturation ratios (ODR and LDR, respectively) were used to detect putative mutants with altered levels of C18 unsaturated fatty acids. Seven of these mutants were isolated and M4 lines were developed. Six lines were characterized by low ODR, showing an increase in oleic acid and a reduction in linoleic acid. Three of these lines also showed reduced levels of linolenic acid. The other mutant line showed a decrease in both LDR and linolenic acid content. Since different enzyme systems seemed to be altered, a further oil improvement for C18 unsaturated fatty acids may be achieved through recombination among mutants. Key words: Brassica carinata Braun, C18 unsaturated fatty acids, mutagenesis

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35

Cober, E. R., e J. W. Tanner. "Use of southern parents in a short-season soybean breeding program is facilitated with long-day screening". Canadian Journal of Plant Science 77, n. 2 (1 aprile 1997): 247–49. http://dx.doi.org/10.4141/p96-029.

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Abstract (sommario):

Elite northern-by-southern soybean crosses may increase genetic diversity while maintaining performance. The objective of this study was to test a long-day selection method which would generate populations containing southern germplasm adapted in maturity to short-season areas. Long-daylength-insensitive lines (MG 00 to 0) were crossed to southern determinate cultivars (MG IV to VI) and of 909 F2 plants grown under 20-h incandescent long daylength (ILD), 34 were ILD-insensitive and non-dwarf. Progeny from selected ILD-insensitive plants were intermated and the resulting modified double cross F2 populations were grown in the field and were of late MG I adaptation. The ILD-screening technique was useful for generating early-maturing populations from parents with divergent maturity. Key words: Genetic diversity, long-daylength insensitivity, soybean breeding

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36

Hotsonyame, G. K., e L. A. Hunt. "Sowing date and photoperiod effects on leaf appearance in field-grown wheat". Canadian Journal of Plant Science 77, n. 1 (1 gennaio 1997): 23–31. http://dx.doi.org/10.4141/p96-030.

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Abstract (sommario):

Rate of leaf appearance is a characteristic that can impact on the rate of development of a crop canopy. For wheat (Triticum aestivum L.), it is generally thought to be constant within a sowing date, but to vary among sowing dates. Such variation has been variously attributed to differences in the rate of change of photoperiod, the absolute photoperiod, or the mean air temperature. This study was undertaken to provide further information on the photoperiod and temperature effects on rate of leaf appearance in wheat. Field studies were conducted at Elora, Ontario at five sowing dates under natural and extended (20 h) photoperiod conditions. Two genotypes each of spring and winter wheat were grown under 0 and 150 kg ha−1 nitrogen fertilization. The results indicated that variations in rate of leaf appearance were not due to rate of change in photoperiod or absolute photoperiod at emergence. The change in rate of leaf appearance during a growth cycle was constant when mean air temperature during growth varied in a narrow range (less than 10 °C), but varied when there were wider ranges (over 10 °C) of temperature variation. Rate of leaf appearance was lower for the September seeding, at which time temperatures were around 5 °C, but were quite similar for May, June, July and August seedings even though temperatures ranged from approximately 15 °C (May) to 23 °C (June). The results suggested that the leaf appearance rate–temperature response curve is curvilinear, as found in some growth room studies, and supported work indicating that the phyllochron would depend on the temperature at the time of measurement. Key words: Wheat, photoperiod, temperature, nitrogen, sowing date, leaf appearance rate

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37

Richer-Leclerc, C., J. A. Rioux, S. Végiard, J. Côté e L. Guillemette. "Évaluation de la tolérance de Betula pendula et de Betula nigra aux conditions climatiques du nord-est canadien". Canadian Journal of Plant Science 77, n. 3 (1 luglio 1997): 445–51. http://dx.doi.org/10.4141/p96-032.

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Abstract (sommario):

A 5-yr study was conducted to evaluate the winter hardiness and growth potential of seedlings of Betulapendula and Betulanigra in order to provide adequate recommendations regarding their adaptation to different climatic conditions. Plants were grown at nine sites of the Réseau d'Essais des Plantes Ligneuses Ornementales du Québec. Betulapendula and B. nigra were not severely affected by winter conditions at any sites and could be used in zones 2 and 2a, respectively. Although, B. pendula could be successfully grown in all tested area, B. nigra could be better produced in zone 5. Key words: Betulapendula, Betulanigra, birch, hardiness, winter damage, growth potential, evaluation

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38

Fleury, M. D., M. J. Edney, L. D. Campbell e G. H. Crow. "Total, water-soluble and acid-soluble arabinoxylans in western Canadian barleys". Canadian Journal of Plant Science 77, n. 2 (1 aprile 1997): 191–96. http://dx.doi.org/10.4141/p96-033.

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Abstract (sommario):

Non-starch polysaccharides, such as β-glucan and arabinoxylan, are often implicated as a cause of the poor feeding value of barley for poultry. Levels of arabinoxylan in Canadian barley types, though, have not been thoroughly investigated. Total, water-extract and acid-extract arabinoxylan levels were determined for six-rowed (covered), two-rowed (covered) and hulless (both six- and two-rowed) barley (Hordeum vulgare) cultivars and genotypes grown in the 1991 Western Canadian Barley Cooperative Program. Analyses were performed using a dichromatic modification of the orcinol method. The six-rowed barley types contained significantly greater total, water-extract and acid-extract arabinoxylan concentrations than hulless or two-rowed types (P < 0.05). In hulless barley, total (P < 0.01), water-extract (P < 0.01), and acid-extract (P < 0.05) levels of arabinoxylan were, respectively, less than, greater than and similar to levels of arabinoxylan in samples of two-rowed barley. Environment had a significant effect on levels of water-extract (P < 0.01) and acid-extract (P < 0.05) arabinoxylan. Genetic differences affected the arabinoxylan content of cultivars and genotypes within each of the barley types (P < 0.05). Levels of acid-extract arabinoxylan were positively correlated with the viscosities of acid extracts of the barleys (P < 0.001). Key words: Arabinoxylan, barley, viscosity, acid-extract, pentosans

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39

Engelsjord, M. E., e B. R. Singh. "Effects of slow-release fertilizers on growth and on uptake and leaching of nutrients in Kentucky bluegrass turfs established on sand-based root zones". Canadian Journal of Plant Science 77, n. 3 (1 luglio 1997): 433–44. http://dx.doi.org/10.4141/p96-034.

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Abstract (sommario):

Sports fields constructed on sand-based root zones are generally permeable to water and nutrients, and potential contaminants of the groundwater. This study was conducted to determine the effect of slow-release and water-soluble fertilizers on growth, nutrient uptake and leaching from a sand-based Kentucky bluegrass (Poa pratensis L.) turf. Two root zone mixtures and two N rates were investigated in two independent lysimeter experiments. In the first experiment (1) the 80:20 sand-peat mixture gave better growth and darker-colored turf than the 60:40 sand-peat mixture. Only RC-NPK and water-soluble NPK treatments in this experiment gave acceptable turf quality for the entire growing season. Frequent application with water-soluble fertilizer or spring application with slow-release carriers gave generally <5 mg L−1 NO3-N in the leachate. In the second experiment (2) application of 300 or 450 kg N ha−1 (either as spring or spring/summer application) as urea-ammonium-nitrate (UAN) (gel) did not give desirable turf growth during the entire period of investigation. Sulfur-coated urea gave generally better turf quality than UAN, but not as good as biweekly compound NPK fertilization. Irrespective of fertilizer N rate, the leaching losses of N varied from 1.1 to 2.9%, giving average NO3-N concentrations in the leachate for all treatments <2 mg L−1. Sandy soil used for sports turf, and fertilized with SCU and RC-NPK, or frequent and small amounts of water-soluble N carriers, appears not to create any serious environmental concern in southern part of Norway where the rainfall is moderate. Key words: Kentucky bluegrass, leaching, nitrogen, nutrient uptake, sand-based rootzone, slow-release fertilizers

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40

Xue, A. G., J. C. Sutton e A. Dale. "Comparative assessments of seedling runner and adult-plant resistance to leaf scorch in strawberry". Canadian Journal of Plant Science 77, n. 2 (1 aprile 1997): 279–81. http://dx.doi.org/10.4141/p96-035.

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Abstract (sommario):

Nine progeny populations, derived from a half-diallel and self-crosses of strawberry cultivars Vantage, Scotland, Governor Simcoe and Kent were evaluated for resistance to leaf scorch (Diplocarpon earlianum) as seedling runners and at the adult-plant stage. At both stages selfed Vantage and selfed Scotland were resistant; crosses between Vantage and Kent and between Governor Simcoe and Kent were susceptible; and remaining progeny populations were of intermediate resistance. A strong correlation (r = 0.970, P < 0.01) was observed between resistance of seedling runners and adult-plants of the nine S1 and F1 populations. The results suggest that strawberry genotypes can be evaluated effectively at the seedling stage in a breeding program for resistance to leaf scorch. Key words: Leaf scorch, Diplocarpon earlianum, strawberry, Fragaria × ananassa, seedling-runner, adult plant, resistance

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41

Iraqi, D., L. Gauthier, M. Dorais e A. Gosselin. "Influence du déficit de pression de vapeur et de la photopériode sur la croissance, la productivité et la composition minérale de la tomate de serre". Canadian Journal of Plant Science 77, n. 2 (1 aprile 1997): 267–72. http://dx.doi.org/10.4141/p96-036.

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Abstract (sommario):

The objective of this study was to determine the effect of four vapour pressure defecits (VPD) and three photoperiods on growth, yield and mineral composition of tomato plants. A factorial experiment was conducted from 28 July 1993 to 30 May 1994 in a greenhouse at Laval University Envirotron in Québec, Canada. Four day/night VPD treatments were compared: 1) 0,4/0,4 kPa, 2) 0,97/0,4 kPa, 3) VPD adjusted to a transpiration rate of 800 mL d−1 plant−1 and 4) 0,97/0,97 kPa. For each VPD treatment, three photoperiods were used: 1) 12 h, 2) 14 h and 3) seasonal progressive photoperiod of 12 to 16 h. The highest VPD significantly increased total and marketable yield, biomass and Ca, Mg, K, N and P contents of the leaves. Results obtained with adjusting the VPD to transpiration needs showed no significant differences with those obtained with the highest VPD. Photoperiod effects were not significant. Key words: Vapour pressure defecit, tomato, Lycopersicon esculentum, biomass, mineral analysis

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42

Jobin, Benoît, Céline Boutin e Jean-Luc DesGranges. "Effects of agricultural practices on the flora of hedgerows and woodland edges in southern Quebec". Canadian Journal of Plant Science 77, n. 2 (1 aprile 1997): 293–99. http://dx.doi.org/10.4141/p96-042.

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Abstract (sommario):

The structure and distribution of herbaceous species were examined in cultivated fields and in adjacent habitats in light of herbicide use and tillage. The diversity and vegetation cover of the herbaceous layer of hedgerows and woodland edges were lower on sites at which herbicides had been sprayed in recent years, probably due to herbicide drift during application on adjacent fields. Herbicide use and tillage had an impact on the species composition of the cultivated fields: there was a higher proportion of annual and introduced species in cultivated fields subjected to herbicide use and tillage than in fields that were not regularly treated or tilled. The species that were found only in non-crop habitats were primarily native and perennials, few of which were weed species, whereas a high proportion of the species found only in cultivated fields were annual and introduced species, several of which were considered weeds. Key words: Woodland edge, hedgerow, herbicide, tillage, weeds, life span

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43

Campbell, C. A., F. Selles, R. P. Zentner, B. G. McConkey, S. A. Brandt e R. C. McKenzie. "Regression model for predicting yield of hard red spring wheat grown on stubble in the semiarid prairie". Canadian Journal of Plant Science 77, n. 1 (1 gennaio 1997): 43–52. http://dx.doi.org/10.4141/p96-043.

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Abstract (sommario):

Soil testing laboratories require predictive equations to make accurate fertilizer recommendations to cereal producers in the Canadian prairies. We used results from two 12-yr experiments (one studying snow management × fertilizer rates, and the other a tillage experiment), conducted on a medium-textured Orthic Brown Chernozem at Swift Current, Saskatchewan, to develop a regression model to estimate grain yield of hard red spring wheat (Triticum aestivum L.) grown on stubble. Stepwise regression, with backward elimination, was used to develop the relationship:Y = 1006 + 10.53 WU − 0.017 WU2 + 5.52 FN − 0.095 FN2 − 33.16 SN + 0.436 SN2 − (0.112 FN × SN) + (0.057 FN × WU) + (0.159 SN × WU) − 1.26 DD (R2 = 0.89, P = 0.001, n = 262)where Y = grain yield (kg ha−1), WU = estimated water use (mm), SN = soil test N (kg ha−1), FN = rate of fertilizer N (kg ha−1), and DD = degree days >5 °C (°C-days). Water use was available spring water in the 0- to 1.2-m depth plus 1 May to 31 July precipitation + irrigation, and SN was NO3-N in 0- to 0.6-m depth, measured in fall. We validated this model using data from two other experiments in the Brown soil zone and one in the Dark Brown soil zone in Saskatchewan, and an irrigation × N rate experiment in the Brown soil zone in southern Alberta. The results showed that this model will provide reasonable yield estimates for fine-, medium- and coarse-textured soils, when SN ≤ 55 kg ha−1, over a wide range of water use. We recommend that this equation be tested by colleagues who have appropriate data and be considered for use by soil testing laboratories in Saskatchewan, Alberta, Montana and the Dakotas. Key words: Multiple regression, soil test N, fertilizer N, water use, degree-days

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44

Voldeng, H. D., J. A. Frégeau-Reid, R. J. D. Guillemette, D. A. Leonard e E. R. Cober. "TNS soybean". Canadian Journal of Plant Science 77, n. 1 (1 gennaio 1997): 117–18. http://dx.doi.org/10.4141/p96-044.

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45

Voldeng, H. D., J. A. Frégeau-Reid, R. J. D. Guillemette, D. A. Leonard e E. R. Cober. "AC Colibri soybean". Canadian Journal of Plant Science 77, n. 1 (1 gennaio 1997): 113–14. http://dx.doi.org/10.4141/p96-045.

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46

Voldeng, H. D., J. A. Frégeau-Reid, R. J. D. Guillemette, D. A. Leonard e E. R. Cober. "Micron soybean". Canadian Journal of Plant Science 77, n. 1 (1 gennaio 1997): 115–16. http://dx.doi.org/10.4141/p96-046.

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47

Waddington, John. "Effects of including dry polyacrylamide gel with seed on establishment of alfalfa and Russian wildrye". Canadian Journal of Plant Science 77, n. 3 (1 luglio 1997): 381–84. http://dx.doi.org/10.4141/p96-058.

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Abstract (sommario):

To examine the possible benefits of crosslinked polyacrylamide gel when establishing forages in a semiarid environment, applications of dry gel in fine, medium and coarse granular forms were made at rates from 0.25 to 4.00 g m−1 of row with seed of alfalfa (Medicago sativa L.) and Russian wildrye [Psathyrostachys juncea (Fisch.) Nevski] in each year 1992–1994 at Swift Current, Saskatchewan. The gel had no effect on seedling year establishment or first year forage production on a sandy-loam soil. On a nearby sandy-clay loam soil, in one of 3 yr with alfalfa, and 2 of 3 yr with Russian wildrye, the lowest gel rate decreased establishment compared with the check, with a further reduction as the rate of gel increased. Alfalfa forage yields were not affected. Gel application decreased Russian wildrye forage yield in 1 of 3 yr. Key words: Medicago sativa, Psathyrostachys juncea, forage yield, soil texture

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48

Warkentin, T. D., A. G. Sloan e S. T. Ali-Khan. "Proximate and mineral composition of field peas". Canadian Journal of Plant Science 77, n. 1 (1 gennaio 1997): 101–3. http://dx.doi.org/10.4141/p96-059.

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Abstract (sommario):

Field pea seeds from 10 cultivars grown at two locations in Manitoba in 1986 and 1987 were analyzed for proximate and mineral profiles. Cultivars differed significantly in their level of total protein, crude fat, ADF, and all minerals tested. However, differences were not extremely large and were comparable to European reports. Location-year also had a significant effect on the levels of total protein, ADF, and all minerals tested. In most cases, the warmest location-year produced relatively higher levels of minerals, ash, and total protein, and lower seed yield than the coolest location-year. Key words: Field pea, Pisum sativum L., mineral

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49

Park, S. J., e T. R. Anderson. "AC Harosprout mungbean". Canadian Journal of Plant Science 77, n. 1 (1 gennaio 1997): 111–12. http://dx.doi.org/10.4141/p96-061.

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Abstract (sommario):

AC Harosprout is a medium to full-season-maturing and high-yielding mungbean [Vigna radiata (L.) Wilczek] cultivar. It is adapted to southwestern Ontario for the production of green beans for sprouting and other human uses. It was purified from an introduction VC1973A from the Asian Vegetable Research and Development Centre (AVRDC). Key words: Vigna radiata, mungbean, green bean, green gram, bean sprout, cultivar description

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50

Park, S. J., e T. R. Anderson. "AC Gemco azuki bean". Canadian Journal of Plant Science 77, n. 1 (1 gennaio 1997): 109–10. http://dx.doi.org/10.4141/p96-062.

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Abstract (sommario):

AC Gemco, tested as A235, was developed from a landrace azuki bean [Vigna angularis (Willd.) Ohwi & Ohashi] "Martyn Bulk" by pure line selection. It is a medium to full-season-maturing cultvar in southwestern Ontario, and produces a high yield of large red seed. AC Gemco has about 12% more yield, larger seed, and matures about 4 d later than the landrace. Key words: Vigna angularis, azuki bean, red bean, cultivar description

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