RESPONSEOFTHREECULTIVAROFDATEPALMOffSHOOTSPROPAGATEDBYTISSUECULTUREANDPLANTEDINGYPSIFRIOUSSOILTOTHECHEMICALFERTILIZER

Kh.A.S.Al-Hamadani,

	RESPONSEOFTHREECULTIVAROFDATEPALMOffSHOOTSPROPAGATEDBYTISSUECULTUREANDPLANTEDINGYPSIFRIOUSSOILTOTHECHEMICALFERTILIZER
The Iraqi Journal of Agricultural Science
Article 1, Volume 46, Issue 5, 2015, Pages 819-831
Author

Abstract
The experiment was performed at Fallujah date palm station belonged to the Horticulture office/Ministry of Agriculture during 2013 season to study the effect of soil and foliar application of fertilizerson offshoots growth of three varieties of date palmBerhi, Saeef plant, and Alhilaly. chlorophyll, NPK, and carbohydrates. Sixty three identical offshoots, grown on square system 5*5 m were selected. The First chemical fertilization applied on 22/2/2013, the second on 20/5/2013, and the third on 25/8/2013, characters were collected at 15/1/2014.The study included 7 fertilizer treatments of (91gm N, 9gm P, 40 gm K) , (182gm N, 18gm P, 80 gm K) and of (273gm N, 27gm P, 120 gm K). The leafy fertilizer was high nitrogen 21% N, 0% P, and 0% K, equal amount at 20% P, and 20% K and Potassium high fertilizer 15% N, 10% P, and 30% K at 4000 mg/liter -1, in addition to the comparison treatment. The experiment was designed on the split plot design , the varieties as main plot while other treatments as split plot. with three replicates for each treatment . The differences were compared between averages based on Duncan’s multiple range test at the possibility of 5%.The results showed thatBerhi was superiorover other two varieties (Saeef plant and Al hilaly) in the width of leaflet, leaf length, and leaves number. While variety of Al hilaly dominated also in number of leaflets and leaves contents of chlorophyll and Potassium .Treatment (273gm N, 27gm P, 120 gm K)(T3) which gave high results in leaves numberswere 16.31 leaves, with length of 161.66 cm, leaflet length of 28.53cm and width,while roots number was 34.51, 59.84 cm of length, and root of width. Leaf chlorophyll contents 62.03 SPAD, CHO ,N, P, K .The combination between varieties and chemical treatment resulted in significant increase in the vegetative growth average; the interaction of variety Saeef plant and (273gm N, 27gm P, 120 gm K) treatment (V2T3) gave highest averages of vegetative growth as leaf length, leaflet length and width, root length and widthas well leaves contents of nitrogen, phosphorus,
Keywords
date palm; OFFSHOOTS; Cultivar; fertilizer; gypsifriou

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