Paper Details

Effect of water stress on remobilization ability and yield components of wheat varieties

Aineh Kar Hasan, Eradatmand Asli, Davood, Yousefi Rad, Mojtaba

DOI: https://dx.doi.org/10.12692/ijb/5.12.457-462

Int. J. Biosci. 5(12), 457-462. December, 2014. (PDF)

Abstract:

Drought, as an abiotic stress, is multidimensional in nature, and it affects plants at different levels of their organization especially photosyntesis. Wheat is generally grown on arid-agricultural fields. Drought often causes serious problems in wheat production. This investigation was conducted to study the remobilization of storage materials and yield component.Four wheat (Triticum aestivum L.) cultivars including Back cross roshan, Pishtaz, Bahar and Falat were evaluated in a split plot experiment based on randomized complete block designwith three replications. Water stress was imposed by withholding irrigation before flowering. Seed weight in spike,1000 grain weight, seed yield and harvesting index decreased under water stress before flowering stage and remobilization of stored assimilates was relatively higher under water-stress condition as compared with thewell-watered environment. Also remobilization efficiency and increased under water stress. Back cross roshan had the highest yield under both situation.