in order to evaluation of plant densities and row spacing effects on growth and yield of wheat, an experiment was conducted by using four plant densities (125, 250, 375 and 500 plants per m2),two row spacing (12.5 and 25 cm), in a randomized complete block design with three replicates in anbare-ololum reign in rainfed and saline conditions during 2008-2009. results showed that leaf area index (...

Abstract In order to evaluate the effects of drought stress and defoliation on sunflower, a study was conducted under controlled conditions. Treatments were a combination of three levels of drought ((100, 60 and 30 percent of Field Capacity (FC)) and three levels of defoliation (control, removal of either 4 or 6 leaves from lower part of the plant) laid out, in a Completely Randomized Design w...

The impact of defoliation by fall armyworm, Spodoptera frugiperda (J. E. Smith), on the photosynthetic rates of injured, individual wheat, Triticum aestivum L., leaves and the impact of different spatial patterns of artificial insect defoliation on photosynthesis of remaining leaf tissue of injured, individual wheat leaves were evaluated in this study. Photosynthesis, stomatal conductance, tran...

to study the yield and change the attributes associated with it, the field experiments were conducted at the gorgan university of agricultural sciences research farm, gorgan, iran in the growing seasons of 2007-2008 and 2008-2009 under well-watered conditions. the 16 cultivars were sown in a randomized complete block design with three replications. the results showed that during breeding activi...

in this study the effects of source limitation on grain yield of twelve barley cultivars (‘aras’,‘jonub’,‘reihan’,‘zarjou’,‘sararoud’,‘sahra’,‘fajr30’,‘karoun’,‘gorgan’,‘makouei ’and ‘nosrat(’ under post anthesis water deficiency were studied. source limitation treatments were included that control, removing of awn, leaves below flag leaf, flag leaf and spike photosynthesis. all source limitati...

The main source of seed filling results from the photosynthesis green tissue closest to sinks in capitula. To evaluate role different leaf strata and capitula yield its components Safflower genotypes, a field study was performed as factorial experiment based on RCBD 3 replicates East Azarbaijan Agricultural Natural Resources Research Education Center 2008. used factors this were: two genotypes ...

introduction: musculoskeletal growth is variable during adolescent period and reaches its maximum by 18 years, whereas hemopoietic parameters reach adult values by 15 years. after adolescence period, the blood parameters may vary with nutrition and built of the individual. the purpose of this study was to find out any correlation between anthropometric and hematological parameters after the ado...