Effects of Salicylic acid on endogens hormone of Sour Orange (Citrus aurantium) Seedling under Saline Water Irrigation

Ail Abdul - Awadh, Hasaneen

	Effects of Salicylic acid on endogens hormone of Sour Orange (Citrus aurantium) Seedling under Saline Water Irrigation
Kufa Journal for Agricultural Science
Article 1, Volume 7, Issue 4, 2015, Pages 1-15
Author
Hasaneen Ail Abdul - Awadh
Abstract
An experiment was conducted in a woody lath house by using 6 months old of sour orange ( Citrus aurantium L.) seedlings which grown in plastic pots filled with river soil. The aim of experiment was study the effects of spraying vegetative canopy with salicylic acid at a concentration of (0, 100 and 200 mg.L-1) concentrations for 4 times with month interval at salinity Irrigation water with three different levels of salinity(1, 2 and 4 ds.m-1 ) for four months, to assess the effects of these treatments and their interactions on seedlings tolerance to salinity, by study the mutations in endogens hormone in leaves (IAA , GA3 , SA , ABA , Put) . The experimental was carried as factorial using Randomized Complete Block Design ( R. C. B. D ) with three replications. The means were compared using Least Significant Differences ( L.S.D) at level of probability 0.05. The results could be summarized as follows, Increasing levels of water salinity to 4 ds.m-1 was significantly increased plant hormone (ABA, Put and SA) whereas, decreasing plants hormone IAA and GA in leaves, and spraying vegetative canopy with salicylic acid at (100 mg.L-1). The interaction results showed that there were a significant increased in the leaves contain of all endogens hormone .
Keywords
Salicylic acid; SOUR ORANGE; Citrus aurantium; Salt stress; Plant growth

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