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Journal articles on the topic 'Perentie'

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Published: 4 June 2021

Last updated: 3 February 2022

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1

Green, B., D. King, and H. Butler. "Water, Sodium and Energy Turnover in Free-Living Perenties, Varanus-Giganteus." Wildlife Research 13, no. 4 (1986): 589. http://dx.doi.org/10.1071/wr9860589.

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Isotope turnover rates of perenties, Varanus giganteus, were determined during two consecutive summers on Barrow I., W.A. The turnover rates were significantly lower in the first summer than those in the second, and there were considerable differences in turnover rates between individuals in both years. Estimated rates of prey consumption were 7.3 and 36.4 g kg- day-l , respectively, during the two summers, and perenties were more active during the second summer. The mean daily energy expenditure for a 10-kg perentie was much higher in both years than that predicted by allometric equations for reptiles, which illustrates the need for obtaining data from larger species of reptiles in determining allometric relationships.

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2

King, D., B. Green, and H. Butler. "The Activity Pattern, Temperature Regulation and Diet of Varanus-Giganteus on Barrow-Island, Western-Australia." Wildlife Research 16, no. 1 (1989): 41. http://dx.doi.org/10.1071/wr9890041.

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The daily activity pattern of the perentie Varanus giganteus on Barrow Island, was bimodal in summer with activity concentrated during the morning and late afternoon. Animais were active on most days in summer. Mean activity temperatures were approximately 36�C, which is similar to those of other varanid species. The heating rate for one animal was 0.09�C min-1. The activity areas of animals ranged in size from 2.9-21.5 ha. The diet consisted mainly of turtle eggs or hatchlings and other vertebrates. Mating and egg-laying appear to take place in the spring.

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3

Moore, Harry A., Jacob L. Champney, Judy A. Dunlop, Leonie E. Valentine, and Dale G. Nimmo. "Spot on: using camera traps to individually monitor one of the world’s largest lizards." Wildlife Research 47, no. 4 (2020): 326. http://dx.doi.org/10.1071/wr19159.

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Abstract ContextEstimating animal abundance often relies on being able to identify individuals; however, this can be challenging, especially when applied to large animals that are difficult to trap and handle. Camera traps have provided a non-invasive alternative by using natural markings to individually identify animals within image data. Although camera traps have been used to individually identify mammals, they are yet to be widely applied to other taxa, such as reptiles. AimsWe assessed the capacity of camera traps to provide images that allow for individual identification of the world’s fourth-largest lizard species, the perentie (Varanus giganteus), and demonstrate other basic morphological and behavioural data that can be gleaned from camera-trap images. MethodsVertically orientated cameras were deployed at 115 sites across a 10000km2 area in north-western Australia for an average of 216 days. We used spot patterning located on the dorsal surface of perenties to identify individuals from camera-trap imagery, with the assistance of freely available spot ID software. We also measured snout-to-vent length (SVL) by using image-analysis software, and collected image time-stamp data to analyse temporal activity patterns. ResultsNinety-two individuals were identified, and individuals were recorded moving distances of up to 1975m. Confidence in identification accuracy was generally high (91%), and estimated SVL measurements varied by an average of 6.7% (min=1.8%, max=21.3%) of individual SVL averages. Larger perenties (SVL of >45cm) were detected mostly between dawn and noon, and in the late afternoon and early evening, whereas small perenties (SVL of <30cm) were rarely recorded in the evening. ConclusionsCamera traps can be used to individually identify large reptiles with unique markings, and can also provide data on movement, morphology and temporal activity. Accounting for uneven substrates under cameras could improve the accuracy of morphological estimates. Given that camera traps struggle to detect small, nocturnal reptiles, further research is required to examine whether cameras miss smaller individuals in the late afternoon and evening. ImplicationsCamera traps are increasingly being used to monitor reptile species. The ability to individually identify animals provides another tool for herpetological research worldwide.

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4

Richardson, S. A., R. H. Grzebieta, and R. Zou. "Development of a side facing seat and seat belt system for the Australian Army Perentie 4×4." International Journal of Crashworthiness 4, no. 3 (January 1999): 239–60. http://dx.doi.org/10.1533/cras.1999.0103.

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5

Cross, Sophie L., Sean Tomlinson, Michael D. Craig, and Philip W. Bateman. "The Time Local Convex Hull method as a tool for assessing responses of fauna to habitat restoration: a case study using the perentie (Varanus giganteus : Reptilia : Varanidae)." Australian Journal of Zoology 67, no. 1 (2019): 27. http://dx.doi.org/10.1071/zo19040.

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Understanding the behavioural responses of animals to habitat change is vital to their conservation in landscapes undergoing restoration. Studies of animal responses to habitat restoration typically assess species presence/absence; however, such studies may be restricted in their ability to show whether restoration is facilitating the return of self-sustaining and functional fauna populations. We present a case study using VHF/GPS tracking of a young adult perentie (Varanus giganteus), to demonstrate the range of applications of the Time Local Convex Hull method of home-range construction in analysing the behavioural responses of fauna to habitat change and restoration. Presence/absence studies provide single point locations of an animal, and the Minimum Convex Polygon method provides an invariant estimate of habitat use across the whole home range. However, the Time Local Convex Hull method provides a useful method for assessing movement and behavioural responses of fauna to habitat change and restoration, and the specific habitat requirements for the long-term support of populations. The breadth and multidimensionality of data generated indicates strongly that understanding the complex interactions between animals and their environment is fundamental to their conservation in the face of ever-increasing rates of human-induced habitat change and degradation.

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6

Hernández-Sandoval, Luis, and Mahinda Martínez. "Una nueva especie de Mancoa (Brassicaceae) endémica de Michoacán, México." Acta Botanica Mexicana, no. 104 (July 1, 2013): 101. http://dx.doi.org/10.21829/abm104.2013.59.

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Se describe e ilustra Mancoa perennis, una nueva especie endémica al estado de Michoacán, México. Es similar a M. laxa, de la cual difiere en su hábito perenne, los lóbulos de las hojas caulinares ovados a triangulares, enteros, presentando un tricoma ramificado en el ápice y la inflorescencia densa con pedicelos glabros.

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7

Garcez Neto, Américo Fróes, Rasmo Garcia, Derrick Jan Moot, and Kátia Fernanda Gobbi. "Aclimatação morfológica de forrageiras temperadas a padrões e níveis de sombreamento." Revista Brasileira de Zootecnia 39, no. 1 (January 2010): 42–50. http://dx.doi.org/10.1590/s1516-35982010000100006.

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As características morfológicas do azevém-perene (Lolium perenne cv. Nui), dátilo (Dactylis glomerata cv. Vision) e trevo-vermelho (Trifolium pratense cv. Pawera) foram avaliadas em resposta a quatro níveis (0, 25, 50 e 75%) e dois padrões de sombreamento (contínuo e alternado), sob três períodos de crescimento (estabelecimento, primeira e segunda rebrotação), na Nova Zelândia, com o objetivo de avaliar as formas de adaptação de diferentes espécies às mudanças no ambiente luminoso. O estudo foi conduzido em delineamento experimental de blocos completos casualizados, com três repetições, entre janeiro e outubro de 2004. A maioria das medidas morfológicas foi afetada pelos níveis de sombreamento. A área foliar específica foi a variável morfológica que variou mais consistentemente em resposta aos níveis de sombreamento, com aumento de 22 a 79% entre as forrageiras. As adaptações morfológicas do dátilo foram as que mais se relacionaram à tolerância ao sombreamento, enquanto as do azevém-perene foram mais relacionadas à expansão da sua área foliar individual. A faixa de sombreamento entre 25 e 50% pode ser considerada a de maior aclimatação morfológica das forrageiras para compensar a restrição luminosa.

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8

Kenney, E. J. "Philologia Perennis (?)." Classical Review 49, no. 1 (April 1999): 142–43. http://dx.doi.org/10.1093/cr/49.1.142.

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9

Nisbet, R. G. M. "Philologia Perennis." Classical Review 49, no. 2 (October 1999): 415–16. http://dx.doi.org/10.1093/cr/49.2.415.

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10

Graikou, Konstantia, Nektarios Aligiannis, and Ioanna B. Chinou. "Chemical constituents from Pterocephalus perennis subsp. perennis (Dipsacaceae)." Biochemical Systematics and Ecology 34, no. 5 (May 2006): 438–41. http://dx.doi.org/10.1016/j.bse.2005.12.008.

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11

Schmidt-Biggemann, Wilhelm. "Outlines ofphilosophia perennis." Intellectual News 2, no. 1 (September 1997): 60–66. http://dx.doi.org/10.1080/15615324.1997.10429239.

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12

Yeryomin, Vladislav. "Integral traditionalism and philosophia perennis in the context of European culture." Bulletin of Mariupol State University. Series: Philosophy, culture studies, sociology 9, no. 18 (2019): 19–26. http://dx.doi.org/10.34079/2226-2849-2019-9-18-19-26.

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The article examines the school of integral traditionalism as an intellectual phenomenon of European culture of the XX-XXI centuries. An excursion was made into the history of the formation of this phenomenon, an overview of its directions, personalities and key concepts. The connection of traditionalism with idealistic philosophy, Romanticism, right-wing ideologies and academic religious studies is traced. The study concluded that integral traditionalism, as a special form of Western esotericism, is an organic part of European culture. Its place in the space of the latter can be represented in the form of a diagram consisting of three circles. The largest of them will represent idealistic philosophy as a whole (from the origins to the present day). The circle of a smaller diameter inscribed in it will be perennialism – a system of ideas about Philosophia perennis as a common source and secret (esoteric) content of different religions and spiritual teachings. An even smaller circle inscribed in the second circle will be integral traditionalism itself as the most "concentrated" form of perennialism, characterized by a high degree of rationalization and self-removal from the semantic codes of Modern and Postmodern. Moreover, all the three circles can be divided into two parts – connected with a living spiritual tradition (through initiation) and devoid of such a connection. As a form of Western esotericism, integral traditionalism claims a fundamentally "gnostic" status. This feature separates it both from religion, in which, in the words of R. Guenon, "intellectual elements are mixed with emotional", and from secular science, which, with all its rigor and objectivity, remains entirely a "profane" phenomenon. At the same time, the principles of traditionalism, distinguished by their "holistic" character, have prospects of application to various fields of humanitarian knowledge.

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13

Marsh, David, and Giovannangiola Tarugi. "Validita perenne dell'Umanesimo." Italica 65, no. 3 (1988): 289. http://dx.doi.org/10.2307/478586.

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14

Głuchowski, Gerard. "„Philosophia perennis” Romualda Balaweldera." Galicja. Studia i materiały 2 (2016): 284–95. http://dx.doi.org/10.15584/galisim.2016.2.19.

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15

Sauer, Werner. "Erneuerung der Philosophia Perennis." Grazer Philosophische Studien 58 (2000): 119–49. http://dx.doi.org/10.5840/gps200058/5920.

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16

Bermejo-Barrera, José Carlos. "VERITAS FILIA TEMPORISVERSUSPHILOSOPHIA PERENNIS." History and Theory 47, no. 3 (October 2008): 443–52. http://dx.doi.org/10.1111/j.1468-2303.2008.00466.x.

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17

Salamucha, Jan. "Le thomisme comme philosophia perennis." Revue des sciences religieuses, no. 80/1 (January 1, 2006): 57–65. http://dx.doi.org/10.4000/rsr.1851.

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18

Glensk, M., V. Wray, M. Nimtz, and Schöpke. "Triterpenoid saponins of Bellis perennis." Scientia Pharmaceutica 69, no. 1 (March 30, 2001): 69–73. http://dx.doi.org/10.3797/scipharm.aut-01-08.

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Ten saponins have been isolated from the deacylated saponin mixture of Bellis perennis L. The structures of these saponins can be divided into two groups that show differences both in the aglycone and the carbohydrate moieties bound at C-28. The first group consists of glycosides of polygalacic acid with tri- or tetrasaccharide moieties consisting mainly of deoxyhexoses and a second group of glycosides of bayogenin or asterogenic acid which possess glucose as major carbohydrate moiety and one xylose or rharnnose unit. From the most polar fraction of the alkaline hydrolysate obtained from the underground parts of Bellis perennis one saponin possessing only glucose residues has been obtained. On the basis of a sugar methylation analysis and NMR spectral data, the structure was established as 3-O-ß-D-glucopyranosyl-2ß,3ß,23-trihydroxyolean-12-en-28-oic acid 28-O-ß-D-glucoyranosyl-(1→2)-[ß-D-glucopyranosyl(1→6)]-ß-D-glucopyranoside.

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19

Petrini, O., and P. J. Fisher. "Fungal endophytes in Salicornia perennis." Transactions of the British Mycological Society 87, no. 4 (December 1986): 647–51. http://dx.doi.org/10.1016/s0007-1536(86)80109-7.

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20

Wolf, M. "Mercurialis perennis vs Mercurius vivus." British Homoeopathic journal 82, no. 3 (July 1993): 194. http://dx.doi.org/10.1016/s0007-0785(05)80039-0.

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21

Mitich, Larry W. "English Daisy (Bellis perennis L.)." Weed Technology 11, no. 3 (September 1997): 626–28. http://dx.doi.org/10.1017/s0890037x00045541.

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The English daisy, Bellis perennis L., is a widespread lawn weed and a bane to those who favor daisy-free lawns and golf courses. The genetic name Bellis, a designation used by Pliny, means “pretty”; perennis means “through the years,” “continuing,” or “perennial” (Gledhill 1985; Mabberley 1989). While pretty, the English daisy is a persistent weed that spreads by short stolons (Tutin et al. 1976). It is a member of the cosmopolitan family Compositae, which encompasses 1,100 genera and 25,000 species (Heywood 1993). The genus Bellis comprises about 15 European and Mediterranean species. Some of them are medicinal and some are cultivated ornamentals, especially forms of B. perennis. The signature of this species is a flower head that Closes at night and in wet weather (Tutin et al. 1976).

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22

Szymik, Jerzy. "Theologia perennis. O poznaniu teologicznym." Studia Teologii Dogmatycznej 6 (2020): 190–204. http://dx.doi.org/10.15290/std.2020.06.12.

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Faith, which, by its very nature, wants to know the One it loves, results in theology – a love-inspired rational reflection on its own content. Hence, it is the guarantee and the motive for the permanence of theology as a cognitive eff ort, humbly and courageously reaching the Mystery of God Himself, who is the first to be known as the truth to the one who seeks for love and to subject what they see to the judgement of reason. In confrontation with the contemporary concept of epistemology, which considers only mathematical and natural cognition to be scientifically practised, theology convinces about the limits of reason and the methodologically necessary role of living, ecclesiastical faith. Such instrumentarium ensures a unique synthesis of objectivity and subjectivity in the cognitive process – the knowledge of the truth about reality demands personal involvement. Theology, which in fact values human reason, allowing it to reach out to the reality of the highest rank – God Himself – appears to be a great opportunity for today’s mankind, plagued by spiritual and intellectual confusion.

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23

Hague, L. M., and R. N. Jones. "Cytogenetics of Lolium perenne." Theoretical and Applied Genetics 74, no. 2 (June 1987): 233–41. http://dx.doi.org/10.1007/bf00289974.

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24

Mulyani. "Islam dan Philosophia Perennis: Catatan atas Kritik Legenhausen Terhadap Philosophia Perennis Seyyed Hossein Nasr." Konfrontasi: Jurnal Kultural, Ekonomi dan Perubahan Sosial 1, no. 2 (January 10, 2020): 1–7. http://dx.doi.org/10.33258/konfrontasi2.v1i2.76.

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The idea of Philosophia Perrennis Seyyed Hossein Nasr isn’t detached from points of weakness, so Legenhausen gives critical notes on the Nasr thoughts. But, Legenhausen’s critical note also isn’t free from weakness too, so as its consequences, the public saw his critical notes is just defensively apologetic criticism of the Muslim orthodoxy. This paper tried to elaborate Legenhausen’s critical view, so that orthodoxy of traditional Islam is still authoritative.

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25

Hussain, M. Iftikhar, and Manuel J. Reigosa. "Seedling growth, leaf water status and signature of stable carbon isotopes in C3 perennials exposed to natural phytochemicals." Australian Journal of Botany 60, no. 8 (2012): 676. http://dx.doi.org/10.1071/bt12072.

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In the present study, we evaluated the seedling growth, water status and signature of stable carbon isotopes in C3 perennial species exposed to natural phytochemicals. Three perennial species, cocksfoot (Dactylis glomerata), perennial ryegrass (Lolium perenne) and common sorrel (Rumex acetosa), were grown for 30 days in perlite, watered with Hoagland solution and exposed to the phytochemicals benzoxazolin-2(3H)-one (BOA) and cinnamic acid (CA) at 0, 0.1, 0.5, 1.0 and 1.5 mM concentrations. BOA markedly decreased the leaf and root fresh weights of D. glomerata and L. perenne in a concentration-dependent manner. The leaf fresh weight (LFW) of plants treated with CA (1.5 mM) was similarly affected by showing a decrease of LFW, being the lowest in L. perenne (56%) followed by D. glomerata (46%). The relative water contents of L. perenne, D. glomerata and R. acetosa were decreased while maximum RWC reduction was observed in L. perenne. Carbon isotope discrimination in L. perenne, D. glomerata and R. acetosa were reduced following treatment with BOA and CA at 1.5 mM. BOA at 1.5 mM decreased the ratio of intercellular to ambient CO2 concentration relative to control in L. perenne, D. glomerata and R. acetosa. There was an increase in water-use efficiency in L. perenne, D. glomerata and R. acetosa after treatment with BOA and CA. The dry weight of plants treated with CA (1.5 mM) showed different patterns of variation, being lowest in L. perenne (33%) followed by D. glomerata (3%) and R. acetosa (2%). Phytotoxicity was higher for the perennial grass than for the perennial broadleaf. These results clearly demonstrate a widespread occurrence of phytotoxicity among the three species, their tolerance and relationship between carbon isotope discrimination and intrinsic water-use efficiency.

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26

Colabelli, M. N., A. Peretti, S. S. Martino, and M. G. Cendoya. "Calidad de semillas em partidas comerciales de raigrás perenne (Lolium perene L.) en la Argentina comparadas por los tests de fluorescencia y de prefoliación." Revista Brasileira de Sementes 23, no. 2 (December 30, 2001): 268–74. http://dx.doi.org/10.17801/0101-3122/rbs.v23n2p268-274.

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27

Tsunoda, Tomonori, Naoki Kachi, and Jun-Ichirou Suzuki. "Effects of belowground herbivory on the survival and biomass of Lolium perenne and Plantago lanceolata plants at various growth stages." Botany 92, no. 10 (October 2014): 737–41. http://dx.doi.org/10.1139/cjb-2014-0045.

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We examined the effects of a root-feeding beetle larva (Anomala cuprea Hope) on the survival and biomass of Lolium perenne L. and Plantago lanceolata L. plants at various ages. We hypothesized that belowground herbivory would kill more juveniles than mature plants because of greater root damage. We predicted that for juvenile plants, mortality would be higher for P. lanceolata than for L. perenne, because the thin taproot of P. lanceolata is less tolerant to herbivory. We hypothesized that for mature plants, herbivory of fibrous roots would negatively affect biomass; thus, L. perenne would be less tolerant than P. lanceolata. Plants of L. perenne or P. lanceolata at four ages were grown in pots with or without a herbivore. Herbivores killed juvenile plants, but not mature plants, of both species. More juveniles of P. lanceolata than L. perenne were killed by herbivory. In P. lanceolata, the low biomass of juveniles was attributed to herbivory, but herbivory did not affect the biomass of mature plants. In contrast, herbivory negatively affected the biomass of L. perenne plants of all ages. We concluded that the effects of belowground herbivory depend on plant age and, thus, on plant growth stage and root architecture.

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28

Chen, Li Li, Yan Feng, Dang Quan Zhang, Ying She Luo, Rong Chen, and Xiao Lei Zhang. "Nutritional Value Change during Processing Forage Block from Under-Forest Interplanting Lolium Perenne." Advanced Materials Research 1073-1076 (December 2014): 1849–53. http://dx.doi.org/10.4028/www.scientific.net/amr.1073-1076.1849.

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In order to make use of the under-forest economy, Lolium perenne were interplanted under the trees, and the effect of coarse fodder processing on the nutrient content of under-forest interplanting Lolium perenne was analyzed. The result showed that the contents of calcium and phosphorus of under-forest interplanting Lolium perenne were 0.79% and 0.119%, while those of forage blocks processed were 0.82% and 0.115%, and the one starch-added were 0.74% and 0.125%, respectively. The calcium contents were 0.51%, 0.67% and 0.76% when the ratio of Lolium multiflorum/ Illicium verum were 100:1, 200:1 and 300:1 in the processed forage blocks, and the phosphorus contents were 0.121%, 0.123% and 0.127%, respectively. The results suggested that the coarse fodder processing and additive have no obvious influence on the mineral nutrients of Lolium perenne during forage block processing, and the optimal ratio of Lolium perenne/ Illicium verum is 300:1 in the forage.

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Tallowin, J. R. B., S. K. E. Brookman, and G. L. Santos. "Leaf growth and utilization in four grass species under steady state continuous grazing." Journal of Agricultural Science 124, no. 3 (June 1995): 403–17. http://dx.doi.org/10.1017/s0021859600073366.

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SUMMARYTiller weight, lamina length, lamina growth rate, appearance interval and lamina utilization were examined in Lolium perenne, Agrostis stolonifera, Holcus lanatus and Poa trivialis. Marked tillers were measured in situ over 14–21 day periods in a continuously grazed permanent pasture under steady state management in Devon, UK, in 1985, 1986 and 1987 on plots receiving either zero (0N) or 400 kg nitrogen (400N) fertilizer/ha per annum.L. perenne was incapable of reducing its individual tiller weight or lamina length to the same extent as in the other three species during the grazing season. Lamina appearance interval was longer in L. perenne than in the other three species in most of the observation periods in both the 400N and 0N plots. Overall the lamina appearance intervals were similar between A. stolonifera, H. lanatus and P. trivialis. Lamina extension rates were greater in L. perenne than in either A. stolonifera or P. trivialis in most observation periods in both plots. H. lanatus had lower lamina extension rates than L. perenne in c. 50% of the observation periods in both plots, at other times the extension rates of the two species were similar, with one exception in early spring in the 400N plot when H. lanatus had a higher extension rate. There was no clear pattern in seasonality as to when H. lanatus had a lower extension rate than L. perenne. H. lanatusachieved either similar or higher lamina extension rates than either A. stoloniferaor P. trivialis in c. 50% of the observation periods, respectively; the periods when higher rates were observed in H. lanatus in the 400N plot occurred mainly in the spring and early summer. A. stolonifera and P. trivialis achieved similar lamina extension rates in most observation periods in both the ON and 400N plots. The specific differences observed in the lamina extension rates were emphasised when converted to growth rates by multiplying the length increments by the average weight per unit length of the expanded lamina for each species.Lamina utilization, in terms of percentage of lamina length removed by grazing, was similar between the four grass species in most observation periods in the ON plot. A. stolonifera lost more lamina length than either L. perenne or P. trivialis in May and June and H. lanatus lost a greater percentage of lamina length than either L. perenne or P. trivialis in May in the ON plot. In the 400N plot L. perenne lost a greater percentage of lamina length than any of the other species in June and more than P. trivialis in May. A. stolonifera lost a greater percentage of lamina length than any of the other species in July, and more than either L. perenne or P. trivialis in May. This greater severity of grazing in A. stolonifera was associated with a high incidence of tillers being grazed to stubble. H. lanatus lost more lamina length than L. perenne in May. When the loss of lamina length through grazing was converted to losses in terms of weight of tissue removed, then L. perenne consistently lost more than either A. stolonifera or P. trivialis in both the 400N and 0N plots.The implications of these differences in tissue production and utilization on competitive interactions between L. perenne and the other three species are discussed.

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30

Castro-Rivera, Rigoberto, Alfonso Hernández-Garay, Humberto Vaquera-Huerta, J. de la Paz Hernández-Girón, Adrián R. Quero-Carrillo, Javier F. Enríquez-Quiroz, and Pedro A. Martínez-Hernández. "COMPORTAMIENTO PRODUCTIVO DE ASOCIACIONES DE GRAMÍNEAS CON LEGUMINOSAS EN PASTOREO." Revista Fitotecnia Mexicana 35, no. 1 (March 30, 2012): 87. http://dx.doi.org/10.35196/rfm.2012.1.87.

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Se evaluaron varias asociaciones de dos gramíneas (ovillo, Dactylis glomerata; y ballico perenne, Lolium perenne) y una leguminosa (trébol blanco, Trifolium repens) en diferentes proporciones, para buscar la de máximo rendimiento de materia seca (MS). Se utilizaron cinco proporciones (%) de trébol blanco, ovillo y ballico perenne: 40:30:30; 40:0:60; 40:60:0; 40:20:40 y 40:40:20, que se distribuyeron en 20 unidades experimentales bajo un diseño de bloques completos al azar con cuatro repeticiones. Las variables evaluadas fueron: rendimiento de materia seca, tasa de crecimiento, altura de planta y composición botánica. Las praderas fueron pastoreadas por ovinos de la cruza entre las razas Suffolk x Dorset, cada cuatro semanas en primavera-verano y cada seis en otoño-invierno. La asociación 40:20:40 mostró el mayor rendimiento de MS que superó en 52 % a la asociación 40:60:0 que produjo el valor más bajo (P ≤ 0.05). En todas las asociaciones el mayor rendimiento de MS ocurrió en primavera-verano y el menor en otoño-invierno, con 65 y 35 % del rendimiento anual. En promedio, trébol blanco, ballico perenne y pasto ovillo aportaron 51, 34 y 17 % respectivamente, del rendimiento de MS. Las mejores asociaciones fueron 40:20:40 y 40:30:30. Del análisis de mezclas se obtuvo que la asociación que maximiza el rendimiento de MS fue 40, 23 y 37 % de trébol blanco, ovillo y ballico perenne, respectivamente. Dicho valor se obtuvo con la ecuación: Rendimiento de MS (kg ha-1) = 11906 (proporción de pasto ovillo) + 14913 (proporción de ballico perenne) + 12770 (proporción de pasto ovillo) x (proporción de ballico perenne).

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31

Jacovides, Anna Olvia. "Louis Perentos : le cri d'une conscience." Cahiers du Centre d'Etudes Chypriotes 5, no. 1 (1986): 17–26. http://dx.doi.org/10.3406/cchyp.1986.1190.

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32

Am�ry, Jean, and Olivier Mannoni. "Les Lumi�res comme philosophia perennis." Revue d�Histoire de la Shoah N�207, no. 2 (2017): 175. http://dx.doi.org/10.3917/rhsho.207.0175.

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33

Kisiel, W., and K. Zielińska. "Sesquiterpenoids and phenolics from Lactuca perennis." Fitoterapia 71, no. 1 (February 2000): 86–87. http://dx.doi.org/10.1016/s0367-326x(99)00112-4.

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34

Bagrowicz, Jerzy. "Paedagogia perennis w strukturze nauk pedagogicznych." Acta Universitatis Nicolai Copernici Pedagogika 30 (September 17, 2015): 79. http://dx.doi.org/10.12775/aunc_ped.2014.004.

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35

Avato, Pinarosa, and Aldo Tava. "Acetylenes and terpenoids of Bellis perennis." Phytochemistry 40, no. 1 (September 1995): 141–47. http://dx.doi.org/10.1016/0031-9422(95)00183-8.

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36

Shetty, Prathap Kumar Halady, Anne Mette Dahl Jensen, Niels Roulund, and Birte Boelt. "Occurrence of Neotyphodium endophytes in perennial ryegreass (lolium perenne) and gescue (Festuca spp.), and characterisation of selected isolates with respect to toxin production, drought and insect resistance." NZGA: Research and Practice Series 13 (January 1, 2007): 116. http://dx.doi.org/10.33584/rps.13.2006.3101.

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Neotyphodium endophytes infect the natural grass populations of Lolium perenne and Festuca sp. L. perenne samples were collected from 62 different locations in Denmark and were analysed for the presence of Neotyphodium lolii.

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37

Zangrilli (book author), Franco, and Antonio Alessio (review author). "Pirandello presenza varia e perenne." Quaderni d'italianistica 29, no. 1 (January 1, 2008): 202–4. http://dx.doi.org/10.33137/q.i..v29i1.8508.

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38

Pereira, Reina Marisol Troca. "Perpetual decay: rehearsal on the eternal transitoriness of human life." Classica - Revista Brasileira de Estudos Clássicos 22, no. 1 (2009): 53–70. http://dx.doi.org/10.14195/2176-6436_22-1_4.

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39

Mendoza Pedroza, Sergio Iban, Alfonso Hernández Garay, Adelaido Rafael Rojas García, Humberto Vaquera Huerta, Omar Ramírez Reynoso, and Rigoberto Castro Rivera. "Comportamiento productivo de pasto ballico perenne solo y asociado con pasto ovillo y trébol blanco." Revista Mexicana de Ciencias Agrícolas 9, no. 2 (April 11, 2018): 343–53. http://dx.doi.org/10.29312/remexca.v9i2.1076.

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Se evaluó el pasto ballico perenne (Lolium perenne L.) en monocultivo y cuatro asociaciones con pasto ovillo (Dactylis glomerata L.) y trébol blanco (Trifolium repens L.) en diferentes proporciones para maximizar el rendimiento de materia seca. Las proporciones en monocultivo y las asociaciones de ballico perenne, ovillo y trébol blanco fueron: 100:00:00, 70:20:10, 50:00:50, 40:40:20 y 20:70:10, las cuales se distribuyeron bajo un diseño de bloques completamente al azar con tres repeticiones. Se evaluó el rendimiento de materia seca, composición botánica y morfológica, relación hoja:tallo y densidad de plantas. La asociación 50:00:50 superó 15% (3 671 kg MS ha-1) a la asociación 70:20:10. El ballico perenne contribuyó más al rendimiento de materia seca en otoño e invierno, mientras que el ovillo y trébol blanco en primavera y verano. Independientemente de la asociación la densidad de plantas fue de 29, 25, 20 y 11 plantas m-2 para otoño, invierno, primavera y verano, respectivamente, con un promedio de pérdida de plantas de 62%. La contribución de cada especie en la composición botánica de las asociaciones fue variable durante el periodo de estudio. Ballico perenne aporto el 46, 40, 29 y 14% en otoño, invierno, primavera y verano, observándose una disminución conforme transcurrió el tiempo de evaluación (p< 0.05). La asociación que obtuvo las mejores características del rendimiento fue 50:00:50% de ballico perenne, pasto ovillo y trébol blanco.

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40

Łacicowa, Barbara, Irena Kiecan, and Danuta Pięta. "Mycoflora of seeds of Bellis perennis and Celosia cristata." Acta Mycologica 27, no. 1 (August 20, 2014): 41–48. http://dx.doi.org/10.5586/am.1992.005.

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The seeds of <i>Bellis perennis</i> and <i>Celosia cristata</i> were investigated. Agar medium with nutrients was used to isolate the fungi. <i>Alternaria alternata</i> dominated among isolated fungi. The investigation showed that <i>Phoma exigua</i> was more pathogenic to <i>Bellis perennis</i>.

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41

Graikou, Konstantia, Nektarios Aligiannis, Ioanna B. Chinou, and Catherine Harvala. "Cantleyoside-dimethyl-acetal and Other Iridoid Glucosides from Pterocephalus perennis – Antimicrobial Activities." Zeitschrift für Naturforschung C 57, no. 1-2 (February 1, 2002): 95–99. http://dx.doi.org/10.1515/znc-2002-1-217.

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Cantleyoside-dimethyl-acetal (6), was isolated from the endemic Greek plant Pterocephalus perennis subsp. perennis in addition to five other known iridoid glucosides, loganin, loganic acid, cantleyoside, secologanin, and secologanin-dimethyl-acetal. The structure of these compounds was determined by all spectroscopic means mainly by NMR and MS techniques. The above compounds as well as their acetyl derivatives were tested against six Gram positive and negative bacteria and three pathogenic fungi.

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42

Ren, Haiyan, Tao Gao, Jian Hu, and Gaowen Yang. "The effects of arbuscular mycorrhizal fungi and root interaction on the competition between Trifolium repens and Lolium perenne." PeerJ 5 (December 20, 2017): e4183. http://dx.doi.org/10.7717/peerj.4183.

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Understanding the factors that alter competitive interactions and coexistence between plants is a key issue in ecological research. A pot experiment was conducted to test the effects of root interaction and arbuscular mycorrhizal fungi (AMF) inoculation on the interspecies competition between Trifolium repens and Lolium perenne under different proportions of mixed sowing by the combination treatment of two levels of AMF inoculation (inoculation and non-inoculation) and two levels of root interaction (root interaction and non-root interaction). Overall, the aboveground and belowground biomass of T. repens and L. perenne were not altered by AMF inoculation across planting ratios, probably because the fertile soil reduced the positive effect of AMF on plant growth. Both inter- and intraspecies root interaction significantly decreased the aboveground biomass of T. repens, but tended to increase the aboveground biomass of L. perenne across planting ratios, and thus peaked at the 4:4 polyculture. These results showed that T. repens competed poorly with L. perenne because of inter and intraspecies root interaction. Our results indicate that interspecies root interaction regulates the competitive ability of grass L. perenne and legume T. repens in mixtures and further makes great contribution for overyielding. Furthermore, AMF may not be involved in plant–plant interaction in fertile condition.

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43

King, J., L. A. Roberts, M. J. Kearsey, H. M. Thomas, R. N. Jones, L. Huang, I. P. Armstead, W. G. Morgan, and I. P. King. "A Demonstration of a 1:1 Correspondence Between Chiasma Frequency and Recombination Using a Lolium perenne/Festuca pratensis Substitution." Genetics 161, no. 1 (May 1, 2002): 307–14. http://dx.doi.org/10.1093/genetics/161.1.307.

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Abstract A single chromosome of the grass species Festuca pratensis has been introgressed into Lolium perenne to produce a diploid monosomic substitution line (2n = 2x = 14). The chromatin of F. pratensis and L. perenne can be distinguished by genomic in situ hybridization (GISH), and it is therefore possible to visualize the substituted F. pratensis chromosome in the L. perenne background and to study chiasma formation in a single marked bivalent. Recombination occurs freely in the F. pratensis/L. perenne bivalent, and chiasma frequency counts give a predicted map length for this bivalent of 76 cM. The substituted F. pratensis chromosome was also mapped with 104 EcoRI/Tru91 and HindIII/Tru91 amplified fragment length polymorphisms (AFLPs), generating a marker map of 81 cM. This map length is almost identical to the map length of 76 cM predicted from the chiasma frequency data. The work demonstrates a 1:1 correspondence between chiasma frequency and recombination and, in addition, the absence of chromatid interference across the Festuca and Lolium centromeres.

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44

WILMAN, D., S. A. BYRNE, and H. Ll OWEN. "Long-term persistence of Lolium perenne and Trifolium repens in sown hill swards." Journal of Agricultural Science 137, no. 3 (November 2001): 319–27. http://dx.doi.org/10.1017/s0021859601001381.

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In order to understand better the factors which influence the persistence or non-persistence of Lolium perenne and Trifolium repens on damp hill land in a wet climate, swards in mid-Wales which had been converted from semi-natural rough grazing (predominantly Molinia caerulea or Nardus stricta or Agrostis/Festuca/Nardus) in 1961–81 were examined in 1982 and 1999, using a point quadrat technique.There was a marked decline between 1982 and 1999 in the proportion of L. perenne in the majority of the study areas. On the other hand, in 1999 the oldest swards (sown 30–38 years before) contained at least as high a proportion of L. perenne (22% of sward on average) as the younger swards (sown 18–29 years before). In two swards sown 25–26 years before, at 390–445 m above sea level, which received 95 kg N/ha per year, L. perenne was 36% of sward. On the other hand, no L. perenne was recorded on three swards which were no longer receiving fertilizer and which were being grazed at a greatly reduced stocking rate. The proportion of T. repens was rather low and declined between 1982 and 1999 (from 10 to 4% of sward on average). The application of more lime and more K and perhaps less N would probably have increased the proportion of T. repens. On at least one farm, the use of MCPA against Cirsium spp. had probably reduced the proportion of T. repens. There were positive correlations between the proportion of L. perenne and the proportions of T. repens and Poa spp. There were negative correlations between L. perenne and each of Agrostis spp., Festuca spp. and Holcus lanatus and also between T. repens and Agrostis spp. The proportion of Poa spp. was positively correlated with exchangeable Ca, nitrate-N and total N in soil and negatively correlated with exchangeable acidity.

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45

Draszawka-Bołzan, Beata. "The Influence of Multicomponent Fertilizers on the Concentration of Potassium in Perennial Ryegrass (Lolium perenne L.)." International Letters of Chemistry, Physics and Astronomy 13 (September 2013): 188–94. http://dx.doi.org/10.18052/www.scipress.com/ilcpa.13.188.

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A pot experiment on an acid brown soil was conducted in 1998-2001. Three multicomponent fertilizers were applied: Polifoska 8, Polifoska 15 and Polimag 306, Travit at the rates of 0.5; 1.0; and 1.5 gN per pot. The total forms of potassium were determined in dry matter of perennial ryegrass with the use of ASA method. The contents of these elements were higher in the fertilized variants as compared to the control. No significant differences were found among the contents of investigated elements compared in plants treated with different multicomponent fertilizers. The chemical analyses indicated that increasing rates of the fertilizers applied enhanced the contents of potassium. In the content of potassium in dry matter of perennial ryegrass (Lolium perenne L.) the Polifoska 8 it ranged from 3.49- 4.92 %. In the content of potassium in dry matter of perennial ryegrass (Lolium perenne L.) the Polifoska 15 it ranged from 4.29-4.86 %. In the content of potassium in dry matter of perennial ryegrass (Lolium perenne L.) the Polimag 306 it ranged from 4.07-5.17 %. In the content of potassium in dry matter of perennial ryegrass (Lolium perenne L.) the Travit it ranged from 3.84-4.73 %. The content of potassium in perennial ryegrass (Lolium perenne L.) was mostly higher on objects may receive farm manures fertilisers compared to the control object.

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46

Lee, Ki-Won, Dong-Gi Lee, Nagib Ahsan, Sung-Hye Won, Sang-Hoon Lee, Ki-Yong Kim, Gi-Jun Choi, Sung Seo, and Byung-Hyun Lee. "Effect of Plant Growth Regulators on Callus Induction and Plant Regeneration of Perennial Ryegrass (Lolium perenne L.)." Journal of The Korean Society of Grassland and Forage Science 27, no. 4 (December 31, 2007): 235–40. http://dx.doi.org/10.5333/kgfs.2007.27.4.235.

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47

Sibma, L., and J. H. J. Spiertz. "Dry matter production and nitrogen utilization in cropping systems with grass, lucerne and maize. 1. Comparison of crop characteristics, growth and production." Netherlands Journal of Agricultural Science 34, no. 1 (February 1, 1986): 25–35. http://dx.doi.org/10.18174/njas.v34i1.16813.

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DM production and crop characteristics of Medicago sativa were studied in comparison with Lolium perenne and maize under temperate conditions and various N applications. Annual DM yields of M. sativa ranged from 13.4 to 18.1 t/ha and were comparable to those of L. perenne and maize. However, the digestibility of M. sativa was lower than that of L. perenne cut for silage and that of maize. Despite significant differences in leaf:stem ratio, specific leaf area and LAI, full light interception was achieved with the same amount of DM for L. perenne and M. sativa. After defoliation by cutting, the time taken to regenerate a closed crop canopy did not differ. DM losses of M. sativa by root and shoot senescence were measured. The decline in tap root number was compensated for by the number of shoots per tap root. It was concluded that the yield potential of M. sativa could be improved by breeding for earlier cv. with a good persistence of roots and shoots. (Abstract retrieved from CAB Abstracts by CABI’s permission)

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48

Shahidi, Reihaneh, Junko Yoshida, Mathias Cougnon, Dirk Reheul, and Marie-Christine Van Labeke. "Morpho-physiological responses to dehydration stress of perennial ryegrass and tall fescue genotypes." Functional Plant Biology 44, no. 6 (2017): 612. http://dx.doi.org/10.1071/fp16365.

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Worldwide drought stress is the most important restriction factor on food and fodder productivity. In this study, morpho-physiological adaptations to dehydration stress were investigated in two tall fescue (Festuca arundinacea Schreb.) genotypes (Fa13 and Fa19 with a high and low sheep grazing preference respectively) and Lolium perenne L. Drought stress as evaluated by decreasing stomatal conductance and chlorophyll content, chlorophyll fluorescence parameters and fructan concentration were first observed in L. perenne (16 days after the start of the drought stress). Furthermore, after 20 days of drought stress the activities of ascorbate peroxide (APX), catalase (CAT), and superoxide dismutase (SOD) were reduced in stressed plants indicating that the capacity to scavenge ROS diminished under severe stress though no differences between genotypes were observed. Osmotic adjustment by carbohydrates did also not differ between the genotypes. Proline, however, reached its highest level in drought-stressed L. perenne followed by Fa13 and Fa19 respectively. The studied species showed a similar degree in response in the traits assessed when plants were exposed to dehydration stress; however changes were first observed in L. perenne.

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49

Falińska, Krystyna. "The biology of Mercurialis perennis L. polycormones." Acta Societatis Botanicorum Poloniae 51, no. 1 (2014): 127–48. http://dx.doi.org/10.5586/asbp.1982.011.

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The developmental cycle of <em>Mercurialis perennis</em> L. polycormones lasts about 6 years. Under natural conditions polycormones arise by way of vegetative propagation. Their development and growth depend on the age, size and developmental state of the part of the plant from which the new individual arises. Development of the polycormone is most intensive in the first three years. During that time the young individuals increase their number of above-ground and underground shoots according to geometrical progression. A certain stabilization in growth and spread was observed in the 4th and 5th year of life. At that time the polycormones are of spherical or oval shape and their structure is mono- and polycentric. Their surface area is 0.51-2.0 m<sup>2</sup> and the number of above-ground shoots amounts to 80-200. In the following years the intensity of regeneration decreases. Polycormones developing in garden culture reach their senile phase in the 3rd and 4th year of life, whereas in natural conditions in the 5th and 6th year. Then gradual dying of the oldest parts of the polycormone starts its division into several independent units. The rapid increase of the area occupied by the newly arising individuals leads to obliteration of the boundaries between them. The development of the aggregation-field distribution specific for this species is preceded by random and aggregation-random distribution of the polycormones in the <em>Tilio-Carpinetum</em> herb layer. It is evaluated that compact one-species patches of <em>Mercurialis parennis</em> L. form in forest communities in about 10 years.

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50

Gildenhard, Ingo. "PHILOLOGIA PERENNIS? CLASSICAL SCHOLARSHIP AND FUNCTIONAL DIFFERENTIATION." Bulletin of the Institute of Classical Studies 46, Supplement_79 (February 1, 2003): 161–203. http://dx.doi.org/10.1111/j.2041-5370.2003.tb01714.x.

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