EFFECT OF SOME CHEMICAL MATERIALS ON MAIZE SEEDS VIABILITY THAT STORED FOR DIFFERENT PERIODS ON YIELD AND ITS COMPONENTS

A. Mohammed, A.; A. Rasheed, A.

	EFFECT OF SOME CHEMICAL MATERIALS ON MAIZE SEEDS VIABILITY THAT STORED FOR DIFFERENT PERIODS ON YIELD AND ITS COMPONENTS
IRAQ JOURNAL OF AGRICULTURE
Article 1, Volume 21, Issue 2, 2016, Pages 0-0
Authors
A. A. Mohammed; A. A. Rasheed
Abstract
Long storage duration of seed can be cause a decrease in performance of seeds, seedling growth and then a decrease in yield and its components. So a field experiment was carried out in the field crop department-College of Agriculture, University of Baghdad during the spring season in 2015, to improve performance of stored maize seeds (cultivar; Baghdad 3) for different periods of storage (1, 2, 4 years) in open storage type, by using several methods of seed priming with (distilled water (H2O) ,polyethylene glycol (6000 PEG) 100gm/ litre-1, potassium chloride (KCl) 20 gm/litre-1, ascorbic acid (ASA)30 mg. litre-1 and gibberellic acid (GA3)300 mg.litre-1) for 24 hours, then dried for 48 hours at room temperature. In addition to unprimed seed treatment (control) to know their effect on the yield and its components and to determine the best one on them, using a factorial experiment with RCBD randomized completely block design in three replications. The results showed that seed priming with potassium chloride (KCl) was significantly superior in rows number and grains number in main ear. Seed priming with gibberellic acid (GA3) was significantly superior in number of grains rows, length of main ear, ear number. Plant-1, 300 grain weight m, grain yield.plant-1, grain yield.ha-1 and harvest index. Stored seeds for one year treatment was significantly superior in all parameters of this study. The results showed a significant effect of the interaction between seed priming treatments and seed storage duration in most the parameters of this study except the adjectives number of rows and number of grains in the main ear as the seeds stored superior for (2 years). It can be concluded from this study that maize seed priming led to improve yield and its components for all the seed storage duration. Also stored maize seed priming with gibberellic acid (GA3) 300 mg. liters -1was the best compare with the other methods of seed priming

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