to determine the effect of zn and mn enriched seed on quality of two winter safflower varieties under drought stress, an experiment was conducted at the agricultural faculty research field, tarbiat modarres university, during 2004-2005 cropping season. the design was a split factorial randomized complete block one of 3 replications. main plots were composed of 3 different levels of drought stre...

in order to evaluate the effect of salicylic acid on yield and yield components of bean genotypes under water deficit stress, an experiment was carried out as a factorial split plot design with three replications in research farm bu ali-sina university (hamadan, iran) during 2009. stress levels: consist of vegetative water stress, reproduction water stress and without water stress (control) and...

Faculty of Agriculture, University of Khartoum, 13314 Shambat, Sudan *Cell phone: +249912988847 ABSTRACT Previous studies report conflicting results regarding the sensitivity of cowpeas (Vigna ungiculata (L.) Walp.) to growth stage water deficits. A field study was designed to monitor the effects of water deficit imposed at different growth stages on yield and water use of cowpeas and to identi...

Stachys L. one of the biggest genus of the Lamiaceae family comprises about 200-300 species.  In this research, aerial parts essential oil composition and content of Stachys lavandulifolia Vahl (Lamiaceae)at different stages (vegetative, full flowering and initial fruiting stages) is reported. The oils obtained by water distillation method (Clevenger apparatus) and analyzed by GC and GC/MS. The...

drought stress is the most important environmental constraint contributing to grain yield instability of maize(zea mays l.). evaluation of maize genotypes under different stresses would be useful for identifying genotypes that combine stability with high yield potential for stress-prone areas. this study was conducted to estimate grain yield stability of maize hybrids and to identify hybrids th...

The influence of drought stress on internal water status and the final grain yield of three Egyptian corn (Zea mays L.) genotypes; GIZA2, TWC310 and TWC320 at different developmental stages was investigated. Plants grown in pots were subjected to four levels of water stress at vegetative and tassel emergence stages. Exposure of plants to drought led to noticeable decreases in leaf water potenti...

Submergence stress can greatly limit grain yield of inbred rice (Oryza sativa L.), but the effects submergence on hybrid are unclear. A pot experiment was conducted to clarify that happens at vegetative growth stage two Chinese cultivars. The cultivars Zheyou-18, an indica-japonica hybrid, and Yliangyou-689, indica were planted under treatments, (43 cm depth tap water for about 2 wk) control (n...