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The survey of superabsorbent polymer on early vigor and water use Efficiency of(Calotropis procera L.) seedling under drought stress | ||
| تحقیقات مرتع و بیابان ایران | ||
| Article 2, Volume 22, Issue 2, August 2015, Pages 216-230 PDF (345.88 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.22092/ijrdr.2015.101641 | ||
| Authors | ||
| Fatemeh Enjavi; Mansour Taghvaie* ; Hossein Sadeghi; Alimorad Hasanli | ||
| Abstract | ||
| Drought stress is a major constraint in arid and semiarid regions, such as Iran. The application of some soil conditioners, like superabsorbent polymers, could be effective in absorbing seasonal rain and suitable source of water for plant growth during dry seasons. The purpose of this study was to investigate the efficiency of superabsorbent polymers on improvement of Calotropis procera L. seedling under drought stress. The experimental design was a factorial arrangement in randomized complete blocks with six replicates. Treatments included drought stress at three levels of 100% fc, 75% fc, 50% fc, as well as superabsorbent polymers at four levels of 0, 2 , 4, 6 gr per kg of soil. Emergence percentage, emergence rate, shoot length, root length, leaf number, leaf area, shoot dry weight, root dry weight, leaf dry weight, seedling dry weight and water use efficiency were significantly affected by the interaction of drought and superabsorbent polymer. Our results indicated that under drought stress, high amounts of superabsorbent polymer had significant positive effects on shoot length, root length, leaf area, root dry weight and water use efficiency. | ||
| Keywords | ||
| Calotropis procera L; emergence rate; Water use efficiency; Superabsorbent Polymer | ||
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