تأثير ملوحة ماء الري وحامض الجبرليك في النمو الخضري و المحتوى المعدني لبادرات نخيل التمر Phoenix dactylifera, L.

Abstract

A study was Conducted to determine in the effect of irrigation water Salanity and Gibberellic acid on growth and mineral concentration of Date palm seedlings in College of Agriculture – university of Basrah during the growing season ( 2006 ).to study the effect of four rate of NaCl ( 0 , 3000 , 6000 , 12000 )ppm and two rate of GA3 ( 0 , 150 )ppm and their interactions Results showed significant decreasing in growth properties so that (12000ppm NaCl)treatment gave the lowest growing as compared to othere treatments but (150 ppmGA3) that was gave increasing in the growth properties compared with control treatment. Statistical Analytical results showed that ( 6000ppm NaCl + 150ppmGA3)there was a significant increasing in the growth properties compare with other treatments, Also the results showed that the Salanity Caused decrease nitrogen , phosphorus and potassium concentration of root and leaves of date Palm seedlings.But the effect of salanity on chloride and sodium of root and leaves of date Palm seedlings had a significant increasing compared with control treatment , statistical analytical Results showed that ( 150 ppm GA3 ) treatment gave increase in the mineral concentration of Date Palm seedlings ,Also the best Combination was ( 6000 ppm NaCl with 150 ppm GA3) increased mineral concentration of (N , P , K , Cl , and Na )in root and leaves