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Effect of salicylic acid and irrigation intervals on mineral content (NPK) of leaves of maize five cultivars. | ||
| journal of kerbala university | ||
| Article 1, Volume 11, Issue 2, 2015, Pages 1-18 PDF (0 K) | ||
| Abstract | ||
| This study was carried out during spring and fall growing seasons of 2013 in Alfayadah district –Alhindiya Kerbala governorate to study the effect of different concentration of SA, two periods of irrigation as well as their interaction on some mineral nutrients content of maize plants. Maize cultivars were Almaha , Buhooth ,Fajer ,Baghdad and Local .Factorial experiment within randomized complete block design ( R.C.B.D) was adopted (5*2*5) for SA, irrigation period and cultivars respectively with three replicates. Means were compared using LSD at 0.05 probability level . The 1st addition of SA was at 4-5 true leaves stage and the 2nd addition was one month after the 1st one (50%of male flowering ), Results revealed that N content was increased by 12.83% and 43.14% at 200 mg/L SA for both seasons respectively. P content was also increased by 52.11% at the same concentration of SA during fall seasons only. K content was increased at 200 and 150 mg/L SA by 16.02% and 11.76% for both seasons respectively. Increasing the intervals of irrigation from 7 to 14 days caused a reduction in N content by 11.01% and , 30.66% P content by 17.07 % and 24.56%, K content during the fall seasons respectively. Maize cultivars showed fluctuations in most studied parameters between spring and fall seasons.However, Almaha cultivar was superior among other cultivars. The interaction between SA & water interval showed a significant increase on most studied parameters concerning vegetative growth , yield & its components& its quantitative parameters.The interaction between SA & cultivars significantily affected the above mentioned parameters.The interaction between three factors. | ||
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