نتایج جستجو برای: phenological traits of barley
تعداد نتایج: 21175721 فیلتر نتایج به سال:
Drought is one of the most destructive abiotic stresses worldwide that affects growth, development and final yield of crops. Reactions of thirteen rainfed spring 2-row barley genotypes and cultivars of cold areas of Iran to water stress were evaluated based on phenological, physiological and morphological traits. The experiment was carried out as factorial experiment based on a randomized com...
Wild barley contains a wide genetic diversity and therefore is adaptable to all kinds of harsh environments. The aim of this research was to determine the extent of drought stress adaptation within Hordeum spontaneum L. genotypes from different climates of Iran. From the primary population of 193 genotypes, a core set consisting of 18 genotypes, were selected based on the highest squared Euclid...
In migratory birds, arrival date and hatching date are two key phenological markers that have responded to global warming. A body of knowledge exists relating these traits to evolutionary pressures. In this study, we formalize this knowledge into general mathematical assumptions, and use them in an ecoevolutionary model. In contrast to previous models, this study novelty accounts for both trait...
Abstract In grasses, biomass and grain production are affected by plant architecture traits such as tiller number, leaf size orientation. Thus, knowledge regarding their genetic basis is a prerequisite for developing new improved varieties. Mutant screens represent powerful approach to identify factors underpinning these traits: the Hor TILLUS population, obtained mutagenesis of spring two-row ...
In order to identify the relationships between photoperiod effects on flowering time in barley and four specific genes (FT2, FT3, FT4 and Ppd-H1), 26 cultivated and wild genotypes were studied in both greenhouse and filed conditions. The Plants were grown at two conditions and phenological traits of days to 50% flowering were recorded in both situations. In addition, the morphology of the 11 tr...
The large number and high diversity of genetic resource collections usually affect the accuracy of assessment and exploitation of the potential of these resources. The core collection provides the solution for the challenges of genetic resources manegement. This study aimed to develop the core collection of native barley germplasm of Iran. The germplasm collection of barley germplasm (Hordeum v...
Drought stress is one the most limiting factors for crop production worldwide. The wide ecological and environmental dispersion of crop wild relatives, generates a high potential of their adaptive diversity to abiotic stresses such as drought. In this study 21 (including 10 cultivated and 11 wild barley (Hordeumvulgaressp. spontaneum))genotypes were evaluated under three soil water conditions f...
Populations of wild barley, H. spontaneum Koch., were collected in two countries, Israel and Turkmenistan, in environments representing two similar sharp clines of aridity. This allowed us to use the same criteria to define species core and periphery in two regions. Plants from 10 Israeli and 19 Turkmenian populations were grown in a field trial with three water treatments and compared for amou...
Abstract. Information on forage quality in phenological stage could help range managers to choose suitable grazing method to achieve higher animal performance without detriment to vegetation. Vetiver grass (Vetiveria zizanioides) is a non-native perennial grass that was introduced to the Iran in 2008. This plant is a multi use species that could be considered from different viewpoints. Thus, it...
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