EXOGENOUS APPLIED PUTRESCINE ELEVATE DROUGHT TOLERANCE OF SUNFLOWER PLANTS BY MODIFYING OF SOME PHYSIO-BIOCHEMICAL PARAMETERS | ||
| Arab Universities Journal of Agricultural Sciences | ||
| Article 31, Volume 26, Special issue (2A), October 2018, Pages 1239-1250 PDF (445.86 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ajs.2018.28387 | ||
| Authors | ||
| A. Faisal* 1; M. F.M. Ibrahim2 | ||
| 1Biology Dept., Fac. of Education and Sci., Sana’a Univ., Sana’a, Yemen | ||
| 2Agric. Botany Dept., Fac. of Agric., Ain Shams Univ., Cairo, Egypt | ||
| Abstract | ||
| Field Experiments were conducted at the Experimental Farm, Faculty of Agriculture, Ain Shams University, Shoubra El-Kheima, Egypt during 2014 and 2015 seasons to evaluate the effect of foliar spray of putrescine (Put) at 0.1 and 0.2 mM on growth and some physio-biochemical compounds of drought stressed sunflower. Putrescine application could be mitigate the negative effect of drought by increasing leaf relative water content (LRWC), proline, total soluble sugars, K and Ca concentrations of sunflower leaves. Correlation coefficient revealed that LRWC was inversely proportional to proline concentration on the one hand and directly proportional to K+ and Ca++ concentrations on the other hand. The modification of physio-biochemical parameters by Put treatments led to increase plant growth and seed-oil yield of sunflower under drought stress. | ||
| Keywords | ||
| Sunflower putrescine; Polyamines; Water stress and Physio-biochemical parameters | ||
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