BREAKING SEED DORMANCY IN THE WHITE SAXAUL TREE (HALOXYLON PERSICUM BOISS. ET BUHSE) AMARANTHACEAE

Author： Nosrati Kazem   Zare Salman   Egan Todd P.  

Publisher： Taylor & Francis Ltd

ISSN： 0190-4167

Source： Journal of Plant Nutrition, Vol.36, Iss.12, 2013-10, pp. : 1821-1828

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Abstract

Seed dormancy is an obstacle to revegetation and reclamation efforts, particularly in arid and semiarid environments. Therefore, the objective of this study was to determine the most effective germination pretreatment for HALOXYLON PERSICUM, a tall desert shrub or small tree. The experiment employed a completely randomized block design. Dormancy breaking treatments included scarification with 98% sulfuric acid for 10, 20, 30, and 60 minutes; debracting seeds; debracting + piercing seeds; stratification for 1, 2, 3 and 4 weeks; and leaching seeds in flowing water for 1, 2, 3, and 4 days. Results demonstrated that scarification with 98% sulfuric acid for 10 min was the most effective treatment which increased germination from 23.3% (control) to >82.6%.

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