The effect of salicylic acid and phosphorus levels spraying in some quality characteristics of grain maize (Zea mays L.) under conditions of incomplete irrigation

	The effect of salicylic acid and phosphorus levels spraying in some quality characteristics of grain maize (Zea mays L.) under conditions of incomplete irrigation
Euphrates Journal of Agriculture Science
Article 1, Volume 6, Issue 4, 2014, Pages 315-325
Abstract
Abstract : A field experiment was carried out during the autumn season of 2013 in a private farm located in Al-Hashimiya region (20 km east south the center of Babylon province), to study the effect of spraying salicylic acid and phosphorus in grain quality of maize under conditions of deficit irrigation. Split-split plot arrangement in randomized complete block design with three replications , in which operated irrigation treatments (A0 full irrigation, A1 deficit irrigation by prevent one irrigation at vegetative stage ) the main plots while phosphorus spraying B0 , B1 and B2 (without spray, spraying of 1000 and 2000 mg P .l-1respectively), in sub plots and salicylic acid C0 , C1 and C2 (without spray, 0.5 and 1.0 mM), represented the sub-sub plots. Maize grain (buhooth 106) were seeded in 20/7/2013 on ridges 70 cm apart . The data were taken after harvest , and analyzed upon the design practice and the averages were tested by (LSD) least significant difference. The results showed that deficit irrigation reduced grain content of phosphorus and potassium and a significant increase in the percentage of protein. Spray phosphorus (1000 mg P .l -1) was superior significantly by giving highest grain content of phosphorus, potassium, calcium and sodium, and salicylic acid C2 (1 mM) was superior in giving the highest grain content of phosphorus, potassium and calcium . The interaction between the factors studied had significant effect in most studied characteristics. Key words: maize , phosphorous, salicylic acid, deficit irrigation, grain quality

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