the aim of this study was to investigate the genotype effect on nitrogen remobilization and its relationship with yield and grain protein concentration in genotypes of wheat during grain filling. twelve wheat cultivars different in origin and varying with grain yield and grain protein percentage were selected. a randomized complete block design was used. plants were harvested at anthesis and ma...

drought stress is considered as one of the main important factors reducing field crop yield, thus leading researchers to study the related physiological characteristics may reduce drought effects. this experiment was conducted in research farm of seed and plant improvement institute (spii) in karadj, arak and jolgeh rokh for three cropping seasons (2008-2011) to evaluate drought tolerance of br...

Two hundred S 1 generation selfed seeds of maize (Zea mays L.) along with their parents (nine) and few checks (sixteen) were raised in ear-to-row progenies during post rainy season 2012 with two replications, were evaluated under stress condition by using lattice square design (15x15). The analysis of variance indicated highly significant differences for eighteen characters except relative wate...

cold is one of the most important abiotic stresses in some regions of iran. to investigate of some tolerance related traits to cold condition, 22 bread wheat genotypes planted in ardabil region in 1980. after plants passed winter cold condition (135 freezing days), cell membrane stability, chlorophyll content of leaf and crown depth and grain yield of genotypes were measured. anova analysis sho...

in order to evaluate the relationship between morphological characters in rice lines two populations at f3 generation were grown in research field of agricultural sciences and natural resource university, sari, iran, during 2012. statistical analysis on important agronomic traits showed that maximum standard deviation belonged to total grain number followed by filled grains per panicle and grai...

The present investigation was carried out to assess the genetic variability parameters, correlation and path analysis in 23 rice genotypes for 13 quantitative traits viz Days 50% flowering, Maturity, Plant height (cm), Flag Leaf Length Width Number of total tillers, Productive Tillers, Panicle Biomass (g), Harvest Index (%), Grains per Panicle, Test Weight (1000 grain weight), Grain Yield (g). ...

The primary components of common bean (Phaseolus vulgaris) grain yield (W) are the number of pods (X), the number of grains per pod (Y), and the weight of the grains (Z). In 1964, Grafius suggested using geometry in plant breeding; W corresponds to the volume of a parallelepiped with three axes, X, Y, and Z. Because the cube is the largest parallelepiped by volume, maximum yield is obtained whe...

in order to locate qtls controlling some agronomic traits associated to drought stress and to determine their relationships with grain yield, an experiment was conducted at the research farm, college of agriculture, university of zabol in 2011. the experiment was arranged in two complete block designs with 3 replications. 72 barley double haploid lines including their parents (steptoe×morex) we...

a 7×7 complete diallel cross experiment was performed to study the genetic relationships of grain yield and some agronomic traits in rice. analysis of variance showed significant differences among genotypes for all traits. results of correlation analysis showed that rice grain yield was positively and significantly correlated with by (rp = 0.81, rg =0.55), hi (rp =0.35, rg =0.79), np (rp = 0.80...