Crop sensitivity to root zone salinity can vary over time, which lead severe damage when high coincides with soil salinity. The variation in of sunflower during its growth cycle is unknown. Two pot experiments were conducted sand culture a complete nutrient solution. Solutions flushed through pots excess maintain specified salt concentrations the In Experiment 1, salt-sensitive stages determine...

Shortage of water resources is a major limiting factor for wheat (Triticum aestivum L.) production in the North China Plain. The objectives of this study were to evaluate the effects of supplemental irrigation (SI) on water use characteristics and grain yield of the wheat cultivars ‘Jimai 22’and ‘Zhouyuan 9369’. Two supplemental irrigation treatment regimens were designed based on target relati...

Micropropagation and minituber production technology may enable the establishment of potato (Solanum tuberosum L.) seed tuber certification programs in arid and semiarid regions of the world and reduce dependency on expensive seed tuber imports. Therefore, we investigated possible carry-over effects of moderate salt stress on the following production cycle. The yields of seed tuberand microtube...

in order to investigate the relationships of some morphological traits at the early stages of three sugar beet cultivars with final yield at varying levels of water regines, a field experiment was carried out in karaj, and mashhad, in 2001-2003.  the objective of this study was to find the relation of some morphological traits of three sugar beet genotypes (7219-p.69, bp-karaj and 7112)  during...

abstract in order to investigate the effects of different irrigation regimes on yield and yield components of three chickpea cultivars, an experiment was conducted during the 2007 growing season at mashhad. six irrigation regimes including i1= full irrigation, i2= irrigation at branching, i3= irrigation at flowering, i4= irrigation at pod formation, i5= irrigation at seed filling stage, and i6=...

Salt-affected soils, those on which plant growth is limited by an excess of salts, are of three types: (i) saline soils in which electrical conductivity is > 4 dSm 1; (ii) sodic soils in which the exchangeable sodium percentage (ESP) is > 15; and (iii) saline-sodic in which the electrical conductivity (EC) is > 4 dSm 1 and ESP is > 15. Salt-affected soils are most common in aridic moisture regi...

This research was carried out to determine effect of sorghum cultivars and copper foliar spray on physiological traits under saline water situation via split plot experiment based on randomized complete blocks design with four replications during 2015 and 2016 year. The main plot consisted sorghum cultivars at three level (Kimia, KGS10, KGS4) and Copper foliar spray (C1: 0 or control...

drought stress is a major factor limiting crop production. investigation of physiological characteristics related to drought tolerance and crop production may be useful in selecting drought tolerant cultivars as well as in improving crop yield. two drought tolerant (azar2 & back cross roshan) and two drought susceptible (marvdast & shiraz) cultivars were investigated in both greenhouse and fiel...