Results 61 to 70 of about 2,710 (173)

رده بندی گونه Puccinia striiformis s. l. عامل زنگ زرد گندمیان در ایران [PDF]

open access: yesرستنی‌ها, 2005
بررسی‌های ریخت شناسی و تجزیه و تحلیل توالی نواحی ITS1، ITS2 و ژن 5.8S از DNA ریبوزومی مشخص نمود بین جدایه‌های زنگ زرد روی اعضای قبیله Triticeae شامل گندم و جو و جدایه‌هایی از این زنگ روی Dactylis glomerata و Poa pratensis اختلافات ثابت قابل توجهی موجود ...
مهرداد عباسی   +3 more
doaj  

Assessing ChatGPT for taxonomic and floristic studies

open access: yesNordic Journal of Botany, Volume 2026, Issue 8, August 2026.
The advancement of biological sciences has long been closely linked to technological progress. ChatGPT, a generative artificial intelligence chatbot capable of producing human‐like conversational responses, has recently attracted attention as a potential support tool for scientific research.
Mykyta Peregrym   +7 more
wiley   +1 more source

Repatriation of lost old grass varieties to the germplasm collection of the Czech Republic

open access: yesCzech Journal of Genetics and Plant Breeding, 2010
In former Czechoslovakia, grass breeding was located in the three distinct regions of Southern Bohemia and Northern Moravia during the 1920's; and later in Slovakia in the 1940's. This resulted in the development of 45 cultivars of 17 grass species which
M. Ševčíková
doaj   +1 more source

Poa pratensis Linnaeus 1753

open access: yes, 2007
Poa pratensis Linnaeus, Species Plantarum 1: 67. 1753, nom. cons. "Habitat in Europae pratis fertilissimis." RCN: 571. Conserved type (Soreng & Barrie in Taxon 48: 157. 1999): Russia. Prov. Sanct-Petersburg, 5km australi-occidentem versus a st. viae ferr. Mga, pratulum ad ripam dextram fl.
openaire   +2 more sources

Botanical inventory of the early book herbaria of Leonhard Rauwolf from southern France and northern Italy (1560–1563)

open access: yesTAXON, Volume 75, Issue 4, August 2026.
Abstract Sixteenth‐century herbaria are the oldest plant collections that survive today and, as such, they provide valuable insights in past floras and historical botanical interactions. One of the most fascinating still extant 16th‐century herbaria is the four‐volume collection of the German physician, botanist and traveler Leonhard Rauwolf (1535 ...
Anastasia Stefanaki   +5 more
wiley   +1 more source

A role for phytosiderophores by Poaceae to acquire phosphorus in severely phosphorus‐impoverished habitats

open access: yesJournal of Ecology, Volume 114, Issue 8, August 2026.
This study demonstrates that several native grasses employed phytosiderophores not only for Fe acquisition, but probably also to mobilise P in their natural severely P‐impoverished habitats, supported by concomitant carboxylate exudation. These findings expand our understanding of integrated P‐acquisition mechanisms in Poaceae within nutrient‐limited ...
Haibin Kang   +13 more
wiley   +1 more source

Quantitative analysis of aposporous parthenogenesis inPoa pratensisgenotypes

open access: yesActa Botanica Neerlandica, 1993
SUMMARY Several embryological and cytological techniques were developed to determine the degree of aposporous parthenogenesis vs. sexuality in different genotypes of the facultative apomictic grass Poa pratensis L. Fixed embryo sacs were mechanically isolated and individually examined with phase-contrast and interference-contrast light microscopes ...
Naumova, T.   +2 more
openaire   +2 more sources

A Bayesian latent‐scale model for quantifying turfgrass seasonality from turf quality ratings in the National Turfgrass Evaluation Program

open access: yesAgronomy Journal, Volume 118, Issue 4, July/August 2026.
Abstract Seasonal variation in turfgrass quality is important for cultivar evaluation in the National Turfgrass Evaluation Program (NTEP). However, quantifying these patterns directly from visual ratings is difficult, because these ratings are ordinal, subjective, and collected repeatedly from spatially structured field trials.
Hok Nip   +5 more
wiley   +1 more source

The effect of some herbicides on seed yield of six grass species - Short Communication

open access: yesPlant Protection Science, 2002
The tolerance to or phytotoxicity of selected herbicides and their impact on seed yield was investigated in six grasses grown for seed: Phleum pratense cv. Sobol (a), Festuca rubra cv. Táborská (b), Festuca pratensis cv.
Jan Macháč   +2 more
doaj   +1 more source

Tolerance to mechanical damage in ten herbaceous grassland plant species

open access: yesPlant, Soil and Environment, 2012
The establishment of plants with high damage tolerance may provide a means for soil protection on sites exposed to strong disturbance. In a pot experiment, we investigated the tolerance to mechanical strain of ten grassland plant species representing ...
L. Breitsameter   +3 more
doaj   +1 more source

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