genetic diversity is necessary for breeding program and increasing genetic gain of selection in crop plants. with the onset of spring growth, spring cold stress is a problem for wheat crops at heading and also may be damaged some other parts of this plant. the aim of this study is the investigation of genetic diversity duo to artificial cold stress on the physiological traits, chlorophyll a, ch...

drought stress is the main limiting factor in the arid and semi-arid region of the world. this research was conducted to evaluate drought tolerance in different accessions of sainfoin for yield, morphological and agronomic traits in 2010. twenty one accessions (landraces and varieties) were evaluated in two environments including drought stress and non-stress conditions for four harvests accord...

sardari is one of the most important landraces of common wheat (triticum aestivum l.) that is mainly cultivated in drylands and mountainous area of iran. moreover, it shows a high level of genetic diversity. in the present research a total of 73 sardari wheat ecotypes were evaluated for drought tolerance. genetic diversity was analyzed using amplified fragment length polymorphism (aflp) marker ...

phytic acid is a major storage form of phosphorous in cereals that acts as food inhibitor by chelating micronutrients and prevents it to be bioavailabe for monogastric animals, including humans. ninety three wheat (triticum aestivum l.) germplasms, including cultivars from india, were characterized for phytic acid and fe contents. phytic acid contents ranged from 0.59 (iitr 92) to 2.08% (iitr 2...

Hulled, or ancient, wheats were the earliest domesticated wheats by mankind and the ancestors of current wheats. Their cultivation drastically decreased during the 1960s; however, the increasing demand for a healthy and equilibrated diet led to rediscovering these grains. Our aim was to use a non-targeted metabolomic approach to discriminate and characterize similarities and differences between...

Wild einkorn (Triticum monococcum L. ssp. aegilopoides (Link) Thell.) is a diploid wheat species from the Near East that has been classified as an ancestor of first cultivated (einkorn; T. monococcum). Its genome (Am), although it not donor A in polyploid wheat, shows high similarity to Au genome. An important characteristic for improvement grain quality, which associated with three components ...

a restriction-site analysis of chloroplast dna (cpdna) was carried out to evaluate the levelof diversity in vicia faba l. germplasm selected from different geographical regions using 11 restrictionendonucleases. we analyzed 214 restriction sites in 18 accessions of vicia faba. all of the accessionshad identical cpdnas, pointing out the ancestral character of all the accessions are of only one g...

Rice (Oryza sativa L.) is one of the most significant cereal crops, about 3 billion people, nearly half the world's population; depend on rice for survival and it offers up to 80% of daily energy intake in most of the Asian countries. Knowledge of the distribution, extent and pattern of genetic variation is useful for estimation of any possible loss of genetic diversity and its role in breeding...

(McIntosh and Gyarfas 1971, Gill et al. 1983, Tomar et al. 1988, Brown-Guedira et al. 1996). Cultivated T. timopheevii has been used for wheat improvement to a greater extent than has its wild progenitor, T. araraticum. Because T. timopheevii is a cultivated species, the chances of recovering agronomically acceptable derivatives from crosses with wheat are greater. However, T. timopheevii is en...