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Evaluation of Traits Related to Drought Stress in Sesame (Sesamum Indicum L.) Genotypes

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  • Masoud Golestani
  • Hassan Pakniyat

Abstract

In order to evaluate traits related to drought stress in eight sesame (sesamum indicum L.) genotypes, two experiments were carried out in randomized complete design with three replications in the field of the Research Station of College of Agriculture, Shiraz University, Iran. The two experiments differed with respect to their irrigation regimes. Yield related traits (number of days to maturation, NDM; number of capsules per plant, NCP; 1000 seed weight, TSW; harvest index, HI; biological yield, BY and grain yield, GY) and physiological traits(canopy temperature, TC, leaf water potential, LWP; leaf osmotic potential, LOP; initial water content, IWC and rate of water loss, RWL) were evaluated under both conditions. The results showed that drought decreased all yield related traits except HI, significantly. LWP and LOP decreased under drought stress, while RWL increased, significantly. TC and IWC did not show significant changes under drought stress. Based on the results, it is reasonable to assume that high yield of sesame plants under drought conditions could be obtained by selecting breeding materials with lowest reduction in NDM, NCP, TSW, BY, GY, LWP and LOP and the highest reduction in RWL. Under non-stress condition LOP in both stages was the best traits. Under drought condition LWP, LOP at both stages and RWL at grain filling stage were the most suitable traits.

Suggested Citation

  • Masoud Golestani & Hassan Pakniyat, 2015. "Evaluation of Traits Related to Drought Stress in Sesame (Sesamum Indicum L.) Genotypes," Journal of Asian Scientific Research, Asian Economic and Social Society, vol. 5(9), pages 465-472.
    • Handle: RePEc:asi:joasrj:v:5:y:2015:i:9:p:465-472:id:3745
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    Cited by:

    1. Gholinezhad, Esmaeil & Darvishzadeh, Reza & Siavash Moghaddam, Sina & Popović-Djordjević, Jelena, 2020. "Effect of mycorrhizal inoculation in reducing water stress in sesame (Sesamum indicum L.): The assessment of agrobiochemical traits and enzymatic antioxidant activity," Agricultural Water Management, Elsevier, vol. 238(C).

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