Bibliografie tematiche / Cucumber (Cucumis sativus L.)

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Letteratura scientifica selezionata sul tema "Cucumber (Cucumis sativus L.)"

Autore: Grafiati
Pubblicato: 4 giugno 2021
Ultima modifica: 19 febbraio 2022

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Articoli di riviste sul tema "Cucumber (Cucumis sativus L.)"

1

Farid, Nurfiddin, Andi Suparlan Isya Syamsu, Ahmad Irsyad Aliah e Anna Muthmainna Murdi. "Uji Efektivitas Anthelmintik Formula Suspensi Biji Mentimun (Cucumissativus L.) Terhadap Cacing Gelang (Ascaris Lumbricoides)". Jurnal Farmasi Galenika (Galenika Journal of Pharmacy) (e-Journal) 6, n. 1 (2 marzo 2020): 104–13. http://dx.doi.org/10.22487/j24428744.2020.v6.i1.14307.

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The Effectiveness Test of Cucumber Seeds Suspension Formula (Cucumis sativus L) towards Roundworms (Ascaris lumbricoides) as in Vitro Anthelmintic, It has been conducted research to know cucumber seeds powder (Cucumis sativus L) can be made into form of suspension stock and to know stock of cucumber seeds suspension (Cucumis sativus L) can give effect of anthelmintic toward roundwoms Ascaris lumbricoides. The research was conducted by using experimental method. Powder of cucumber seeds (Cucumis sativus L) were made into suspension stock with 3 concentratios such as 5%, 10%, 15% concetrations and suspension without powder of cucumber seeds (Cucumis sativus L) with different addition subtance concentration. Test animal used was roundworm (Ascaris lumbricoides) that was taken by pig’s intestine. Treatment group consisted into five categories such as 125 mg positive control of pamoat pirantel (Combantrin®), negative control of suspension without powder of cucumber seeds (Cucumis sativus L), and category of cucumber seeds suspension (Cucumis sativus.L) as 5%, 10%, and 15%. Each group was soaked with 40 ml test ingredient into petri dish. Then it was observed and writte the number of died worms in every minute. 100% observation of died worm was group of positive control at 405 minutes, negative control at 1710 minutes, 5% concetration of cucumber seeds suspension stock at 540 minutes, 10%concentration at 465 minutes and 15% concentration at 420 minutes. The result of research showed that cucumber seeds (Cucumis sativus L) can be made into suspension stock and effective as anhelmintic toward roundworms Ascaris lumbricoides.
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2

Elicia, Vincensa, Bambang Wasito Tjipto e Bernadette Dian Novita. "The Effect of The Cucumber Consumption To The Level of Sodium Potassium in Mus Muscullus’s Urine Production". Folia Medica Indonesiana 57, n. 3 (5 settembre 2021): 210. http://dx.doi.org/10.20473/fmi.v57i3.17697.

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Cucumber (Cucumis sativus L.). was known for lowering blood pressure agents. Some researches show that Cucumber had a similar mechanism with a loop diuretic (Furosemide), exceeding sodium and potassium excretion. However, a part of Cucumber that gives a better effect on managing water and sodium balance remains unknown. This study was to explain the differences potential diuretic among parts of Cucumber (Cucumis sativus L.). This study was using a post-test only control group designed in animals. There were 44 male Mus musculus tested in this study. All of the animal testings was divided into 9 different treatment groups and 2 control groups. All Mus musculus got 1 mL methanol extract of Cucumber (Cucumis sativus L.) according to their group. The animal testing was put on metabolic cage to measure urine volume for 24 hours. The flesh and rind part of Cucumber (Cucumis sativus L.) showed a similar result with furosemide as diuretics agents. However, whole part of the fruit of Cucumber (Cucumis sativus L.) (flesh, rind, and seed) showed as natriuretic dan kaliuretic, Cucumber (Cucumis sativus L.) has a similar potential diuretic with Furosemide. Even in low concentrations of Cucumber extract, it led to having a potential diuretic, with natriuretic and kaliuretic effects in the whole part of the fruit. This could be suggested to people with chronic kidney diseases to prevent hyperkalemia.
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3

Simi, F., NA Ivy, HB Saif, S. Akter e MFA Anik. "Heterosis in cucumber (Cucumis sativus L.)". Bangladesh Journal of Agricultural Research 42, n. 4 (27 febbraio 2018): 731–47. http://dx.doi.org/10.3329/bjar.v42i4.35801.

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Heterosis for quantitative characters in 39 cucumber genotypes (19 parents and 20 F1 s) were investigated at the farm of Department of Genetics and Plant Breeding in Bangabandhu Sheikh Mujibur Rahman Agricultural University during March-November, 2013. Analysis of variance revealed highly significant differences among the parents and hybrids for 19 characters studied. Considerable coefficient of variation were observed for branches per plant, flesh thickness, placental thickness, fruit length ,fruit width, male and female flowers per plant, leaf length, leaf breadth, vine length, fruits per plant , fruit yield per plant indicating the scope of selection for those characters. The characters like branches per plant, male and female flowers per plant, fruit length, fruit weight, fruits per plant, fruit yield per plant contributed the maximum variability towards divergence among cucumber genotypes. Heterosis study depicted that the crosses Sobujsathi × Baromashi, Sobujsathi × Khira, Himaloy × Khira, exhibited significant positive heterosis for 50 % female flowering; Himaloy × Baromashi, Baromashi× Greenking for fruit length; Baromashi × Hero, Yuvraj × Khira for single fruit weight. Where Sobujsathi × Baromashi, Shila× Khira , Modhumoti × Hero and Modhumoti × Khira exhibited significant positive heterosis and heterobeltiosis for yield per plant. The highest positive heterotic effect for no. of fruits per plant was observed in Modhumoti × Baromashi (20%). The highest heterobeltiosis effect was found in hybrid Himaloy × Yuvraj (24.5%) followed by Sobujsathi× Khira (11.2 %), Modhumoti × Baromashi (10.0 %). Four crosses exhibited significant positive better parent heterotic effect for this trait and the combination Sobujsathi × Baromashi had the maximum heterosis on yield (47.6%). The maximum heterobeltiosis effect was found in Shila × Khira (27.73 %) followed by Modhumoti × Hero (15.14%) and Modhumoti × Khira (10%) for fruit yield.Bangladesh J. Agril. Res. 42(4): 731-747, December 2017
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4

Grumet*, Rebecca, Xiaofeng Wang, Mohamed Tawfik e Mitch McGrath. "Development of Genomic Tools for Cucumber, Cucumis sativus L." HortScience 39, n. 4 (luglio 2004): 774C—774. http://dx.doi.org/10.21273/hortsci.39.4.774c.

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Genomics tools have become increasingly varied and valuable for crop improvement. While several species have been targeted for concerted genomic efforts, the majority of horticultural species have received limited attention. Despite the wide variety of important cucurbit crop species, the Cucurbitaceae family has had minimal effort. We have initiated projects to develop genomic tools for cucumber, Cucumis sativus L. Efforts include production of cDNA, yeast two-hybrid, and genomic libraries, and development of an EST database and website for cucumber genomics. Sequences of cucumber leaf ESTs so far indicate that the cDNA library is of high quality and has modest redundancy. Distribution of sequences, as nominally predicted from GeneBank BLAST analysis, indicates that expressed genes fall in the following general categories: photosynthesis (21%), DNA/RNA/protein synthesis (20%), metabolism (15%), signaling (5%), other (16%), and unknown proteins (23%). Cucumber sequence data have been deposited into GenBank and are available on the Michigan State Univ. website (http://genomics.msu.edu/cucumberdb). The yeast two-hybrid library has been successfully used to identify and characterize several genes based on interaction with key proteins of interest, including genes interacting with viral replicases and poly(A) binding protein. The genomic library has been verified to be of high quality and has been used to identify clones of interest.
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5

Chen, Jin-Feng, Jack E. Staub, Jeffrey W. Adelberg e Jiming Jiang. "Physical mapping of 45S rRNA genes in Cucumis species by fluorescence in situ hybridization". Canadian Journal of Botany 77, n. 3 (20 agosto 1999): 389–93. http://dx.doi.org/10.1139/b98-226.

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The chromosomal locations of the genes coding for the 18S-5.8S-26S rRNA was investigated in Cucumis species using fluorescence in situ hybridization. Cucumber (Cucumis sativus L., 2n = 2x = 14) possesses four pairs of rDNA loci that were mapped to chromosomes 1C, 2C, 4C, and 7C. The distinctive hybridization sites of the 18S-5.8S-26S rRNA genes provide several useful cytogenetic markers for identification of chromosomes in C. sativus. The 18S-5.8S-26S rDNA genes have also been detected on two chromosome pairs, one major and one minor pair of loci, in melon (Cucumis melo L., 2n = 2x = 24) and on three pairs of Cucumis hystrix Chakr. chromosomes. The different number and pattern of rDNA sites is consistent with the hypothesis that considerable phylogenetic distance exists among these species.Key words: fluorescence in situ hybridization, 45S rRNA gene, cytogenetics, Cucumis sativus, Cucucmis melo, Cucumis hystrix.
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6

G. P., Preethi. "Heterosis study in Cucumber (Cucumis sativus L.)". International Journal of Pure & Applied Bioscience 7, n. 4 (5 settembre 2019): 395–400. http://dx.doi.org/10.18782/2320-7051.5255.

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7

Isshiki, Shiro, Hiroshi Okubo e Kunimitsu Fujieda. "Isozyme Variation in Cucumber (Cucumis sativus L.)." Engei Gakkai zasshi 61, n. 3 (1992): 595–601. http://dx.doi.org/10.2503/jjshs.61.595.

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8

KANDASAMY, R. B. "Variability studies in cucumber (Cucumis sativus L.)". ASIAN JOURNAL OF HORTICULTURE 12, n. 1 (15 giugno 2017): 84–87. http://dx.doi.org/10.15740/has/tajh/12.1/84-87.

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9

SI, Ignatova, Kušč LM, L. Bilisics, L. Trinh, Tiuliaeva NN e Sedova MG. "Sucrase in immobilized cells of Cucumis sativus L." Horticultural Science 29, No. 1 (6 gennaio 2012): 17–22. http://dx.doi.org/10.17221/4465-hortsci.

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Cell suspension cultures of Cucumis sativus L. – cucumber were permeabilized by Tween, hexadecyltri-methylammonium bromide, hexadecylpyridiniumbromide ethanol and/or immobilized by glutaraldehyde. The highest invertase activity was at pH 4.4 and temperature 53°C. The hydrolysis of the substrate was linear for 5 h reaching 60% conversion. The cells displayed high sucrase activity and convenient physico-mechanical properties.
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10

Danin-Poleg, Y., N. Reis, S. Baudracco-Arnas, M. Pitrat, J. E. Staub, M. Oliver, P. Arus, C. M. deVicente e N. Katzir. "Simple sequence repeats in Cucumis mapping and map merging". Genome 43, n. 6 (1 dicembre 2000): 963–74. http://dx.doi.org/10.1139/g00-065.

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Thirty-four polymorphic simple-sequence repeats (SSRs) were evaluated for length polymorphism in melon (Cucumis melo L.) and cucumber (Cucumis sativus L.). SSR markers were located on three melon maps (18 on the map of 'Vedrantais' and PI 161375, 23 on the map of 'Piel de Sapo' and PI 161375, and 16 on the map of PI 414723 and 'Dulce'). In addition, 14 of the markers were located on the cucumber map of GY14 and PI 183967. SSRs proved to be randomly distributed throughout the melon and cucumber genomes. Mapping of the SSRs in the different maps led to the cross-identification of seven linkage groups in all melon maps. In addition, nine SSRs were common to both melon and cucumber maps. The potential of SSR markers as anchor points for melon-map merging and for comparative mapping with cucumber was demonstrated.Key words: microsatellites, Cucumis melo, melon, Cucumis sativus, cucumber, comparative mapping.
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Più fonti

Tesi sul tema "Cucumber (Cucumis sativus L.)"

1

Mohammadi, Jafar. "Studies on the in vitro regeneration and micropropagation of Cucumis sativus L. (cucumber)". Thesis, University of Bath, 1990. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.237459.

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2

Gadum, Juliana [UNESP]. "Capacidade de combinação de linhagens de pepino (Cucumis sativus L.) do grupo japonês". Universidade Estadual Paulista (UNESP), 2005. http://hdl.handle.net/11449/103255.

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Abstract (sommario):
Made available in DSpace on 2014-06-11T19:32:26Z (GMT). No. of bitstreams: 0 Previous issue date: 2005-01-25Bitstream added on 2014-06-13T19:43:11Z : No. of bitstreams: 1 gadum_j_dr_botfca.pdf: 288776 bytes, checksum: 8e26883c5c77307d1127daa626385ae9 (MD5)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Esse trabalho teve como objetivo estimar a capacidade geral e específica de combinação, empregando-se um topcross entre linhagens e populações de pepino japonês. Foram obtidos 16 híbridos experimentais a partir de 2 populações testadoras (geração F2 de Yoshinari e de Natsusuzumi) e 8 linhagens S5 obtidas a partir do híbrido comercial Hokuho, também foi avaliado o híbrido F1 Hokuho, totalizando 27 tratamentos. O delineamento experimental utilizado foi em blocos casualizados com 4 repetições e cada parcela foi constituída de 4 plantas. Foram realizados dois experimentos em duas épocas, onde foram avaliadas as seguintes características relacionadas ao crescimento vegetativo da planta: comprimento das plantas, número de folhas, número de nós, número de brotações laterais e porcentagem de brotações. Também se avaliou o peso de frutos totais, peso de frutos comerciais, número total de frutos, número de frutos comerciais, porcentagem de frutos comerciais e peso médio de frutos comerciais. As análises de capacidades combinatória foram efetuadas de acordo com o modelo de Geraldi & Miranda Filho (1988). A população de Yoshinari (TY) apresentou, em média, melhor capacidade de se combinar com as linhagens de Hokuho. A linhagem L7 apresentou os maiores valores positivos da estimativa da CGC para a maioria das características avaliadas nos dois experimentos e os híbridos H1Y e H1N, que continham a linhagem L1 como parental, foram os que apresentaram maiores valores para a estimativa da CEC com as populações testadoras para a maioria das características avaliadas nos dois experimentos realizados, enquanto os que tinham a linhagem L5 como parental apresentaram os menores valores. Conclui-se, portanto, que há um alto potencial de se extrair linhagens de Yoshinari para cruzamentos com linhagens de Hokuho, a fim de se obter híbridos tão bons quanto o Hokuho.
The objective of the present work was obtain general and specific combining ability estimates, using a top cross between lines and japanese cucumber populations. It was obtained 16 experimental hybrids starting from 2 test populations (Yoshinari and Natsusuzumi) and 8 S5 lines obtained starting from the Hokuho commercial hybrid. The Hokuho hybrid F1 was also evaluated, totaling 27 treatments. The experimental design used was randomized block with four replications and for plant per plot. Were evaluated the following characteristics related to the vegetative growth of the plant: length of the plants, number of leaves, number of us, number of lateral produce and produce percentage. Related to the production it was evaluated: weight of total fruits, weight of commercial fruits, total number of fruits, number of commercial fruits, percentage of commercial fruits and weigh medium of commercial fruits. The analyses of combining ability were evaluated in agreement with the model of Geraldi & Miranda Filho (1988). The Yoshinari of population (TY) presented, on average, better combining ability with the lines of Hokuho, the lines L7 presented the largest positive values of gi for most of the evaluated characteristics in the two experiments and hybrids with the lines L1 it was the one that it presented larger values for CEC with the test populations for most of the evaluated characteristics in the two accomplished experiments, while the hybrids of lines L5 showed the smallest values. It is ended that there is a high potential of extracting lines of Yoshinari for crossings with lines of Hokuho, in order to obtain hybrid as good as Hokuho, with the advantage of being adapted to national conditions.
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3

Gadum, Juliana 1976. "Capacidade de combinação de linhagens de pepino (Cucumis sativus L.) do grupo japonês /". Botucatu : [s.n.], 2005. http://hdl.handle.net/11449/103255.

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Orientador: Antonio Ismael Inácio Cardoso
Banca: Norberto da Silva
Banca: Maurício Dutra Zanotto
Banca: Paulo Cesar Tavares de Melo
Banca: Wilson Roberto Maluf
Resumo: Esse trabalho teve como objetivo estimar a capacidade geral e específica de combinação, empregando-se um "topcross" entre linhagens e populações de pepino japonês. Foram obtidos 16 híbridos experimentais a partir de 2 populações testadoras (geração F2 de Yoshinari e de Natsusuzumi) e 8 linhagens S5 obtidas a partir do híbrido comercial Hokuho, também foi avaliado o híbrido F1 Hokuho, totalizando 27 tratamentos. O delineamento experimental utilizado foi em blocos casualizados com 4 repetições e cada parcela foi constituída de 4 plantas. Foram realizados dois experimentos em duas épocas, onde foram avaliadas as seguintes características relacionadas ao crescimento vegetativo da planta: comprimento das plantas, número de folhas, número de nós, número de brotações laterais e porcentagem de brotações. Também se avaliou o peso de frutos totais, peso de frutos comerciais, número total de frutos, número de frutos comerciais, porcentagem de frutos comerciais e peso médio de frutos comerciais. As análises de capacidades combinatória foram efetuadas de acordo com o modelo de Geraldi & Miranda Filho (1988). A população de Yoshinari (TY) apresentou, em média, melhor capacidade de se combinar com as linhagens de Hokuho. A linhagem L7 apresentou os maiores valores positivos da estimativa da CGC para a maioria das características avaliadas nos dois experimentos e os híbridos H1Y e H1N, que continham a linhagem L1 como parental, foram os que apresentaram maiores valores para a estimativa da CEC com as populações testadoras para a maioria das características avaliadas nos dois experimentos realizados, enquanto os que tinham a linhagem L5 como parental apresentaram os menores valores. Conclui-se, portanto, que há um alto potencial de se extrair linhagens de Yoshinari para cruzamentos com linhagens de Hokuho, a fim de se obter híbridos tão bons quanto o Hokuho.
Abstract: The objective of the present work was obtain general and specific combining ability estimates, using a top cross between lines and japanese cucumber populations. It was obtained 16 experimental hybrids starting from 2 test populations (Yoshinari and Natsusuzumi) and 8 S5 lines obtained starting from the Hokuho commercial hybrid. The Hokuho hybrid F1 was also evaluated, totaling 27 treatments. The experimental design used was randomized block with four replications and for plant per plot. Were evaluated the following characteristics related to the vegetative growth of the plant: length of the plants, number of leaves, number of us, number of lateral produce and produce percentage. Related to the production it was evaluated: weight of total fruits, weight of commercial fruits, total number of fruits, number of commercial fruits, percentage of commercial fruits and weigh medium of commercial fruits. The analyses of combining ability were evaluated in agreement with the model of Geraldi & Miranda Filho (1988). The Yoshinari of population (TY) presented, on average, better combining ability with the lines of Hokuho, the lines L7 presented the largest positive values of gi for most of the evaluated characteristics in the two experiments and hybrids with the lines L1 it was the one that it presented larger values for CEC with the test populations for most of the evaluated characteristics in the two accomplished experiments, while the hybrids of lines L5 showed the smallest values. It is ended that there is a high potential of extracting lines of Yoshinari for crossings with lines of Hokuho, in order to obtain hybrid as good as Hokuho, with the advantage of being adapted to national conditions.
Doutor
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4

Ullanat, Rajesh. "Light-And Cytokinin-Regulated Plastid And Nuclear Gene Expression In Cucumber (Cucumis Sativus L)". Thesis, Indian Institute of Science, 2000. http://hdl.handle.net/2005/170.

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Abstract (sommario):
Light and phytohormones, such as cytokinins, have been known to play a pivotal role in numerous physiological processes in plant cells. Previous work in our laboratory has revealed the light- and cytokinin- modulated changes both in the levels of specific tRNA species and their modified nucleotide contents, in addition to the characterization of specific tRNAs and tRNA genes from higher plants. The plant hormone cytokinin, which is of particular interest to us has been implicated to be involved in processes such as induction of cell division, plastid biogenesis and delay of senescence. Ongoing work in our laboratory also points towards the role of Ca2+ as a second messenger in cytokinin mediated gene expression. With the objective of isolation of specific tRNA genes which could then be used as probes to study the light- and phytohormone- induced changes in the levels of respective functional mature tRNAs, a previously isolated clone containing a 6.6kb insert that hybridized with 3 end labeled cucumber total cellular tRNA was sequenced by the dideoxy chain termination method. Sequence analysis of the 6.6 kb DNA fragment has revealed a chloroplast genome DNA fragment containing the trnNGUU and trnRACG genes in addition to the genes coding for the ribosomal RNAs 4.5S, 5S and 23S as well as the protein coding genes ccsA (cytochrome c-synthesis) and ndhD(NADH plastoquinone oxidoreductase).These genes were found to be arranged in the order-23S-4.5S-5S-trnRACG-trnNGUU-ccsA-ndhD. This shows a divergence from the gene organization in the completely sequenced chloroplast genomes of other higher plant species such as tobacco, maize, rice and Arabidopsis, especially with regard to the absence of a highly conserved trnLUAG gene that has been shown to be present in the trnNGUU-ndhD intergenic region. The cucumber chloroplast trnNGUU and trnRACG genes have shown very high homology (>90%) whereas ccsA and ndhD show 50-61% similarity to corresponding genes from chloroplast genomes of other plant species. The relative levels of tRNAArg and tRNAAsn were determined by Northern analysis using the tRNA gene probes, in etiolated excised cucumber cotyledons treated with light or phytohormones, such as cytokinin (BA) and auxin (2,4-D). Light and phytohormones were found to significantly increase the levels of tRNAArg unlike in the case tRNAAsn where no significant changes in the levels were observed. This result points towards the regulation of relative levels of specific tRNA species by light and cytokinin so as to match the codon usage of the mRNA population during light- and cytokinin- induced plant development in cucumber. Northern analyses were also performed to monitor the relative transcript levels of the plastid encoded ccsA and ndhD in etiolated excised cucumber cotyledons treated with light or phytohormones. ccsA transcript levels were found to be significantly reduced in auxin treated cucumber cotyledons where as exogenous application of cytokinin to either dark-grown or light exposed cotyledons did not seem to have any pronounced effect. ndhD transcripts were found to be up-regulated by cytokinin treatment or light exposure in comparison to un-treated controls probably indicating a point of overlap in the light/ cytokinin mediated signal transduction pathways. Auxin treatment on the other hand was found to down-regulate ndhD transcript levels also. Recent studies from our laboratory have demonstrated the involvement of a calcium-dependent protein kinase(CDPK) in the cytokinin-signal transduction pathway associated with the induction of pathogenesis-related proteins (chitinase and β 1-3 modulation of nuclear-encoded CDPK transcripts in response to light and exogenously added phytohormones such as cytokinins and auxin. Towards this end, partial CDPK cDNAs were generated from Cucumis Sativus by RT-PCR using degenerate primers designed based on the conserved regions of the known CDPK proteins available in the database, cloned in pGEM-T and sequenced. Sequence analysis of twenty partial cDNA clones revealed the presence of at least four CDPK isoforms in Cucumis sativus (CuCDPK 1-4). Of the four partial CDPK cDNAs, the tissue-specific expression level of CuCDPK3 was studied using the highly sensitive Taqman Analysis (Quantitative RT-PCR). The results obtained indicate that, in excised dark-grown cucumber cotyledons light and cytokinin were found to up-regulate the levels of CuCDPK3 unlike auxin, which was found to have no significant effect. In cucumber hypocotyls, which had the highest levels of CuCDPK3, light was found to have a down-regulatory effect whereas cytokinin and auxin did not bring about any significant changes in the levels of CuCDPK3. In cucumber root tissue, both light and cytokinin were found to have a down-regulatory effect on the levels of CuCDPK3, unlike auxin. The southern analysis of cucumber genomic DNA revealed a CDPK multi-gene family in cucumber. Since cytokinins have been known to play a role in both etioplast and chloroplast biogenesis and since various groups have recently reported the presence of higher plant homologues of bacterial cell-division protein FtsZ and the requirement of plant nuclear-encoded FtsZs for plastid division, efforts were also made to isolate and to study the expression of cucumber FtsZ in dark-grown cucumber cotyledon tissue treated exogenously with light/phytohormones. Towards this end, a partial FtsZ cDNA was generated from cucumber by RT-PCR using degenerate primers designed based on conserved regions of known plant FtsZ proteins. Results of the Taqman Analysis indicate that cytokinin, unlike auxin, mimics the action of light by increasing the levels of CuFtsZ transcripts in dark-grown cotyledon tissue suggesting the involvement of FtsZ in cytokinin-induced plastid-biogenesis.
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5

Hill, Steven Arthur. "The regulation of mitochondrial function during early seedling development in cucumber (Cucumis sativus L.)". Thesis, University of Edinburgh, 1990. http://hdl.handle.net/1842/14071.

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This thesis is concerned with the following areas: first, the nature of the developmental modulations in mitochondrial function, and the role of coarse control, at the level of protein synthesis, in bringing them about; and secondly, the importance of mitochondrial reactions in the regulation of cellular metabolism. Changes in respiratory physiology in developing cotyledons have been characterised and correlated with changing metabolic phases. During lipid mobilisation, carbon is diverted away from the decarboxylating reactions of the TCA cycle, whereas the capacity exists for full cycle operation in the photosynthetic phase. Mitochondrial glycine oxidation, necessary for the maintenance of the photorespiratory cycle, is induced during photosynthetic development. The non-phosphorylating pathway of electron transport, via the alternative oxidase, is present, and the access of substrates to this pathway appears to be regulated such that high rates of succinate and glycine oxidation can occur simultaneously. These changes are brought about, at least in part, by protein synthesis. The steps regulating succinate oxidation by isolated cotyledon mitochondria have been determined using the quantitative techniques of metabolic control theory. During lipid mobilisation, succinate metabolism is regulated by the adenine nucleotide translocator and the processes of succinate uptake into the mitochondria. A mitochondrial r^ole in the integration of biosynthesis and degradation is proposed in the light of these results. In the photosynthetic phase, the regulation of succinate oxidation is by the steps of the respiratory chain. There is evidence to suggest that variation in succinate oxidation rates during development is a result of the synthesis of specific proteins. Studies into the pathway of pyruvate metabolism in developing cotyledons indicate that carbon may be diverted into the TCA cycle during chloroplast biogenesis, through pyruvate production by the mitochondrially located NAD-malic enzyme. It is suggested that this mitochondrial route of carbon entry would enable TCA cycle flux to be regulated by the demand for intermediates required for biosynthetic pathways, rather than the rate of sucrose production from lipid. Evidence is presented for the more conventional route of carbon entry into the TCA cycle from cytosolic pyruvate during the photosynthetic phase. Results indicate that the developmental modulation of pyruvate metabolism is regulated at the level of protein synthesis. Application of metabolic control theory to in vitro systems capable of hexose production from organic acids, provides further support for the proposed r^ole of mitochondria during lipid mobilisation. The adenine nucleotide translocator and other mitochondrial steps have significant flux control coefficients for hexose production in vitro. The results presented are used as the basis for the development of a hypothesis concerning the importance of mitochondria in the regulation of plant metabolism.
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Roldán, Gustavo Alberto Quesada. "Supplemental LED interlighting on the physiological response and yield of mini-cucumber". Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/11/11136/tde-22032018-131951/.

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On the protected horticultural industry, the artificial lighting is a common practice under reduced natural light radiation or self-shading of the leaves at lower canopies. Those conditions affect the photosynthetic activity and the yield is limited. In the last decade, the use of lamps with LED technology for supplemental lighting has increased on high-latitude countries. LED lights are more energy efficient and have lower power consumption. On these lamps is possible to regulate the intensity (quantity) and the radiation (quality) on the ideal range of light spectrum in order to convert the luminous energy into chemical energy. Not reports of use of this technology were found at the tropics. Thus, the objective of this work was to evaluate physiological parameters related with the photosynthetic activity and the yield on mini-cucumber plants grown on protected environment with supplemental LED interlighting. At Piracicaba (Sao Paulo), Brazil, three experiments were conducted on LED interlighting equipped greenhouse, two at winter seasons (2015 and 2016 years) and one at summer season (2017 year) using mini-cucumber hybrid Larino. Through the three stands, was verified an increase on the photosynthesis in the leaves and the commercial productivity of the mini-cucumber due to the LED lighting use. This increase on the commercial yield ranged between 13 and 30%, being higher the effect on the summer season. At the first stand, in addition to the light effect, grafted plants were tested. On this case, the photosynthetic rate increased with grafted plants when treated with LEDs. However, the yield did not increase with grafting. Postharvest parameters as titratable acidity, total soluble solids and long shelf life did not increase as consequence of supplemental LED lighting. Studying the light response curves, it was verified that above a photosynthetic photon flux density of 400 μmol m-2s-1, plants treated with supplemental lighting showed higher values of net CO2 assimilation. The light compensation point was also higher on plants with LEDs. In the case of the CO2 response curve, plants treated with LED lighting verified higher increase on the CO2 assimilation rate when the plant internal CO2 concentration increased. Parameters like Rubisco carboxylase activity, rate of electron transport and leaf dark respiration were also higher on plants under supplemental LED lighting. The lower consumption of electricity and the yield increase on the summer stand allowed registering greater energy and light efficiency on this cycle when compared with the winter stands. For the same reason, the cost analysis revealed that only at the summer stand the LED interlighting was profitable. At that time, the total net income was positive and the benefit cost ratio favorable (1.15).
Na produção hortícola em ambiente protegido, o emprego de luz artificial é uma prática comum, quando condições de radiação natural reduzidas ou o autosombreamento das folhas nos estratos médio e inferior do dossel prejudicam a atividade fotossintética da planta, e consequentemente, limitam a produtividade. Na última década, em países de alta latitude, tem aumentado o uso de lâmpadas com tecnologia de luz LED para fazer essa suplementação luminosa. As luzes do tipo LED são mais eficientes energeticamente e apresentam baixo consumo de energia. Também nessas lâmpadas é possível regular a intensidade (quantidade) e a radiação (qualidade) na faixa ideal do espectro de luz visível para a conversão da energia luminosa em energia química. Em países de clima tropical, experiências dessa natureza não estão reportadas. Assim, foi realizado este trabalho com o objetivo de avaliar parâmetros fisiológicos relacionados com a atividade fotossintética e a produtividade de minipepino cultivado em um ambiente protegido com suplementação luminosa de tipo LED. Em Piracicaba (SP), foram conduzidos três experimentos em casa de vegetação, sendo realizados no inverno (anos 2015 e 2016) e no verão (ano 2017), usando plantas de minipepino híbrido Larino. Foi constatado nos três ciclos aumento na fotossíntese da planta e na produção de pepino comercial devido ao emprego da luz LED. Esse aumento no rendimento comercial variou entre 13 e 30%, sendo maior o efeito no ciclo do verão. No primeiro ciclo além do efeito da luz LED, plantas enxertadas foram testadas. Nesse caso, as plantas enxertadas mostraram também aumento na taxa fotossintética quando submetidas à suplementação luminosa, porém a produtividade não aumentou com a enxertia. Parâmetros de pós-colheita como acidez titulável, teor de sólidos solúveis e vida de prateleira não aumentaram pela suplementação com LED. Estudando as curvas de resposta à luz foi constatado que acima de 400 μmol m-2s-1 na densidade do fluxo de fótons, as plantas com suplementação luminosa mostraram valores maiores na taxa de assimilação líquida de CO2. O ponto de compensação à luz também foi superior em plantas com LED. No caso da curva de resposta ao CO2, as plantas tratadas com luz LED mostraram maior incremento na taxa de assimilação de CO2 quando a concentração interna de CO2 na planta aumentou. Parâmetros como atividade da Rubisco carboxilase, taxa de transporte de elétrons e a respiração obscura foram também maiores em plantas sob luz LED. O menor consumo de eletricidade junto com o aumento na produtividade no ciclo de verão favoreceu maior eficiência no uso da energia e da luz nesse ciclo, quando comparado com os ciclos de inverno. Por esse mesmo motivo, a análise de custos revelou que a suplementação luminosa com luz LED somente foi benéfica no ciclo de verão. Nessa época, a renda líquida total foi positiva e a relação custo beneficio favorável (1.15).
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Chen, Chunquan 1958. "Induced systemic resistance against Pythium aphanidermatum by plant growth-promoting rhizobacteria on cucumber (Cucumis sativus L.)". Thesis, McGill University, 1998. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=35862.

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Cucumber root rot caused by Pythium aphanidermatum can be suppressed by introduced plant growth-promoting rhizobacteria (PGPR). Preliminary experiments clarified that this root disease could be suppressed by strains of Pseudomonas aureofaciens, P. corrugata, and P. fluorescens. To determine whether the mechanism was a systemic resistance induced by PGPR, a split root technique was employed on greenhouse cucumbers grown in soilless substrates. On the split roots, bacteria which were introduced into one side of the root were completely separated from pathogen challenged-inoculated roots-on the other side of the roots. Results from the series of experiments conducted with this design demonstrated that (i) the resistance against root rot induced by PGPR was systemic, (ii) germination of P. aphanidermatum zoospores was reduced in extracts from bacterized roots compared to non-treated control, and (iii) spread of Pythium mycelia was delayed and zoospore germination was inhibited on the distant induced root, compared to the non-bacterized control. Furthermore, enzyme analysis indicated that phenylalanine ammonia lyase, peroxidase and polyphenoloxidase increased on cucumber roots two days after they were bacterized with Pseudomonas strains 13 or 63--28. When the bacterized roots were challenged with P. aphanidermatum, these plant defense enzymes increased as the symptoms appeared, but this accumulation of enzymes was not any higher on roots induced with each of the Pseudomonas strains compared to the Pythium inoculated control. This enzyme stimulation was also systemically induced by PGPR or P. aphanidermatum on cucumber roots. The patterns of iso-peroxidase induced with the PGPR and P. aphanidermatum treatments were different. High levels of salicylic acid (SA) accumulated in bacteria-induced roots, as well as in pathogen-infected roots, which suggests that SA may be associated with cucumber resistance response. But exogenous application of SA did not induce any systemi
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Chen, Chunquan. "Induced systemic resistance against Pythium aphanidermatum by plant growth-promoting rhizobacteria on cucumber, Cucumis sativus L". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/NQ50129.pdf.

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Santacruz, Oviedo Victoria Rossmary [UNESP]. "Depressão endogâmica em uma população de pepino japonês (Cucumis sativus L.)". Universidade Estadual Paulista (UNESP), 2004. http://hdl.handle.net/11449/93561.

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Made available in DSpace on 2014-06-11T19:26:42Z (GMT). No. of bitstreams: 0 Previous issue date: 2004-01-28Bitstream added on 2014-06-13T18:54:59Z : No. of bitstreams: 1 santacruzoviedo_vr_me_botfca.pdf: 253923 bytes, checksum: d788e43f5154fa351b3082b8b6f18339 (MD5)
Foram conduzidos dois experimentos na FCA/UNESP, objetivando avaliar a depressão causada por endogamia com sucessivas gerações de autofecundação em uma população de pepino do tipo japonês. No primeiro experimento foram avaliadas características de produção de frutos imaturos no período de 21/08/2002 à 29/11/2002 em ambiente protegido. No segundo experimento foram avaliadas características de produção e qualidade de sementes no período de 12/03/2003 à 13/06/2003 em condições de campo. A partir do intercruzamento entre plantas do híbrido Natsu suzumi foi obtida a geração F2, considerada como população S0. Obtiveram-se progênies S1, S2, S3, S4 e S5, através de autofecundações sucessivas pelo método do SSD ('Single Seed Descent'). Ao partir da mistura ao acaso de sementes de progênies com igual número de autofecundações sucessivas foram obtidas cinco populações denominadas de população S1 a população S5. Foram sete tratamentos (híbrido Natsu suzumi, populações S0 a S5) e o delineamento experimental foi em blocos ao acaso, com seis e quatro repetições no primeiro e segundo experimento, respectivamente e cinco plantas por parcela nos dois experimentos. No primeiro experimento (frutos imaturos) foram avaliados, número de folhas, comprimento da haste principal, número e massa de frutos, total e comercial, número de nós e porcentagem de brotações. No segundo experimento (frutos maduros) avaliaram-se características relacionadas com produção (número e massa de sementes por planta e por fruto) e qualidade de sementes (teste padrão de germinação, primeira contagem de sementes, índice de velocidade de germinação, massa de 100 sementes). Foram realizadas as análises de variância para cada característica, e as médias dos tratamentos foram comparadas pelo teste de Tukey (%). Também foram realizados análises de variância apenas com as seis...
Two experiments were set up at FCA/UNESP. The objective of this work was to evaluate the inbreeding depression with successive generations of self pollination in a cucumber Japanese population. It was studied one population F2 obtained from a commercial hybrid (Natsu suzumi) considered as S0 population. In the first experiment were appraised characteristics of production of immature fruits in the period of 21/08/2002 to 29/11/2002 in protected cultivation. In the second experiment were appraised seed production and quality in the period of 12/03/2003 to 13/06/2003 in open field conditions. It was obtained progenies S1, S2, S3, S4 and S5 through the 'Single Seed Descent' methodology. It was used randomized blocks with seven treatments (different generations of self pollination - S0 to S5 and the hybrid Natsu suzumi) six and four replicates in the first and second experiment and five plants per plot in both. In the first experiment (immature fruits) were evaluated number of leaves, length of the main stem, number and weight of fruits, total and commercial, number of nodes and vines percentage. In the second experiment (mature fruit) characteristic related with production were evaluated (number and weight of seeds per plant and per fruit) and quality of seeds (germination test, first counted of seeds, index of germination speed and weight of 100 seeds). The variance analyses were accomplished each characteristic and the averages of the treatments were compared by the test of Tukey (%). Also accomplished just with the six inbreed generations to evaluate the possible inbreeding depression (without including the commercial hybrid). In the comparison among the population differences were not observed for the characteristics appraised showing there were not production loss for inbreeding in this population. However, for the characteristics length of the main stem, number of total fruit, weight of seeds per fruit and seed number per fruit the commercial.
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Salama, Abdelmoneim M. "Deterioration of lipids in relation to ageing of cucumber (Cucumis sativus L.) and onion (Allium cepa L.) seeds during storage". Thesis, University of Newcastle Upon Tyne, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.308914.

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Più fonti

Libri sul tema "Cucumber (Cucumis sativus L.)"

1

Legocka, Jolanta. Udział kinetyny w regulacji ekspresji genów podczas wzrostu liścieni ogórka (Cucumis sativus L.). Poznań: Wydawn. Nauk. Uniwersytetu im. Adama Mickiewicza w Poznaniu, 1992.

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2

Studies on Cucumber (Cucumis sativus L.) [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.87508.

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3

Plaisted, Douglas C. Characterization and inheritance of low temperature germination dormancy of cucumber (Cucumis sativus L.). 1988.

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4

Zhang, Qi. New male sterile mutant in cucumber (Cucumis sativus L.): Inheritance, genetic relationship to other mutants and sex types, and response to chemical and environmental factors. 1992.

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5

Wasser, Felicity Louise. The selection of beneficial rhizosphere bacteria and the growth responses of Dianthus L. sp. and Cucumis sativus L. to these bacteria. 1987.

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Capitoli di libri sul tema "Cucumber (Cucumis sativus L.)"

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Malepszy, S. "Cucumber (Cucumis sativus L.)". In Crops II, 277–93. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-73520-2_13.

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2

Sharma, Vinita, Loveleen Sharma e Kawaljit Singh Sandhu. "Cucumber (Cucumis sativus L.)". In Antioxidants in Vegetables and Nuts - Properties and Health Benefits, 333–40. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-7470-2_17.

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Chee, P. P. "Transgenic Cucumber (Cucumis sativus L.)". In Transgenic Crops II, 132–46. Berlin, Heidelberg: Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-642-56901-2_10.

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4

Chee, P. P. "Transformation in Cucumber (Cucumis sativus L.)". In Biotechnology in Agriculture and Forestry, 215–27. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-78037-0_17.

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5

Przyborowski, J. A. "Haploidy in cucumber (Cucumis sativus L.)". In In Vitro Haploid Production in Higher Plants, 91–98. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-017-1858-5_6.

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6

Ladyman, J. A. R. "Somatic Embryogenesis in Cucumber (Cucumis sativus L.)". In Somatic Embryogenesis and Synthetic Seed II, 151–63. Berlin, Heidelberg: Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-642-78643-3_13.

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Nanasato, Yoshihiko, e Yutaka Tabei. "Cucumber (Cucumis sativus L.) and Kabocha Squash (Cucurbita moschata Duch)". In Methods in Molecular Biology, 299–310. New York, NY: Springer New York, 2014. http://dx.doi.org/10.1007/978-1-4939-1695-5_24.

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Punja, Z. K., e S. H. T. Raharjo. "Regeneration of Plants from Protoplasts of Cucumis sativus L. (Cucumber)". In Plant Protoplasts and Genetic Engineering III, 31–45. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-78006-6_4.

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Murooka, Y., e H. J. Cho. "Cucumis sativus L. (Cucumber): In Vitro Culture and the Production of Ascorbate Oxidase". In Biotechnology in Agriculture and Forestry, 148–63. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-58062-8_11.

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Asadi, Abouzar, e Jose M. Seguí-Simarro. "Production of Doubled Haploid Plants in Cucumber (Cucumis sativus L.) Through Anther Culture". In Methods in Molecular Biology, 71–85. New York, NY: Springer US, 2021. http://dx.doi.org/10.1007/978-1-0716-1331-3_4.

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Atti di convegni sul tema "Cucumber (Cucumis sativus L.)"

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Skarzyńska, Agnieszka, Wiktor Kuśmirek, Magdalena Pawełkowicz, Wojciech Pląder e Robert M. Nowak. "Assembly of cucumber (Cucumis sativus L.) somaclones". In Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2017, a cura di Ryszard S. Romaniuk e Maciej Linczuk. SPIE, 2017. http://dx.doi.org/10.1117/12.2280630.

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Kahlen, Katrin, Jana Zinkernagel e Hartmut Stutzel. "Modeling temperature-modulated stem growth of cucumber plants (Cucumis sativus L.)". In 2012 IEEE 4th International Symposium on Plant Growth Modeling, Simulation, Visualization and Applications (PMA). IEEE, 2012. http://dx.doi.org/10.1109/pma.2012.6524832.

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3

Qian, Tingting, Shenglian Lu, Chunjiang Zhao, Xinyu Guo e Weiliang Wen. "Computational experiments of light distribution and photosynthesis in cucumber (Cucumis sativus L.) canopy". In 2012 IEEE 4th International Symposium on Plant Growth Modeling, Simulation, Visualization and Applications (PMA). IEEE, 2012. http://dx.doi.org/10.1109/pma.2012.6524864.

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4

"Plant Growth-Promoting Rhizobacteria Improved Seedling Growth and Quality of Cucumber (Cucumis sativus L.)". In International Conference on Chemical, Food and Environment Engineering. International Academy Of Arts, Science & Technology, 2015. http://dx.doi.org/10.17758/iaast.a0115068.

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Caus, Maria. "Efectul șocului termic a temperaturilor suboptimale pozitive și a preparatului Reglalg asupra indicilor germinativi ai semințelor de castravete Cucumis Sativus L". In International Scientific Symposium "Plant Protection – Achievements and Prospects". Institute of Genetics, Physiology and Plant Protection, Republic of Moldova, 2020. http://dx.doi.org/10.53040/9789975347204.64.

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Cucumber (Cucumis sativus L.), cv Concurent and forms as Plai, F1; ELITA, F1; ASSIA, F1; Viorel, F1 și Cernomor, F1 seeds treated with distillate water (control) or water solutions of Reglalg preparation (1/100 and 1/1000 dilutions) were germinated at 27°C (control) or at different sub optimal positive low temperature (15°C, 13°C, 10°C, 8°C, 6°C and 4°C) to study germination characteristics. Final germination percent of cv Concurent seeds and germination energy decreased, while the conditional number of days, required for germination of one seed, increased with the decrease of temperature. The temperature of 13°C is the minimum below which all cucumber seeds do not germinate. Application of Reglalg preparation (dilution 1/1000) had a beneficial effect on the germination parameters under suboptimal temperature of 15⁰C.
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Subandi, Melly Wijaya, Tatas P. Broto Sudarmo e Endang Suarsini. "Saponin isolates from cucumber (Cucumis sativus L.) fruit mesocarp and their activity as pancreatic lipase inhibitor". In THE 8TH ANNUAL BASIC SCIENCE INTERNATIONAL CONFERENCE: Coverage of Basic Sciences toward the World’s Sustainability Challanges. Author(s), 2018. http://dx.doi.org/10.1063/1.5062814.

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Sari, Harsiwi Candra, Sri Rahayu Lestari, Rina Rifqie Mariana e Subandi Subandi. "In vitro and in silico analysis of cucumber (Cucumis sativus L.) mesocarp powder as pancreatic lipase and α-amylase inhibitor". In INTERNATIONAL CONFERENCE ON LIFE SCIENCES AND TECHNOLOGY (ICoLiST 2020). AIP Publishing, 2021. http://dx.doi.org/10.1063/5.0052669.

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Deden, Deden, Wijaya Wijaya, Dukat Dukat e Richie Agustirra. "The Effect of Doses of Manure and the Concentration of Organic Herbicides on the Growth and Yield of Cucumber (Cucumis sativus L.) Cultivars Bhakti". In International Conference on Agriculture, Social Sciences, Education, Technology and Health (ICASSETH 2019). Paris, France: Atlantis Press, 2020. http://dx.doi.org/10.2991/assehr.k.200402.019.

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Shahari, N., S. M. Hussein, M. Nursabrina e S. Hibberd. "Mathematical modelling of cucumber (cucumis sativus) drying". In PROCEEDINGS OF THE 21ST NATIONAL SYMPOSIUM ON MATHEMATICAL SCIENCES (SKSM21): Germination of Mathematical Sciences Education and Research towards Global Sustainability. AIP Publishing LLC, 2014. http://dx.doi.org/10.1063/1.4887607.

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Grin'ko, N. N. "World Collection of Cucumis sativus L. VIR Resistant Genetic Resources Ascochyta cucumis Fautrey & Roum". In SCIENCE OF RUSSIA: TARGETS AND GOALS. LJournal, 2020. http://dx.doi.org/10.18411/sr-10-02-2020-16.

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