Influence of Seed Size on Seed Yield and Its Components of Maize (Zea mays)

	Influence of Seed Size on Seed Yield and Its Components of Maize (Zea mays)
journal of kerbala university
Article 1, Volume 5, Issue 2, 2009, Pages 47-51 PDF (0 K)
Abstract
A field study was conducted at an agriculture field in Babylon governorate /Musaiyib district to sort out the seed size effect on yield and yield components of maize. Two seed sizes i.e. small and large have diameter less than 7 mm. and more than 7 mm. respectively which they have accumulated from tip and base of ear respectively. The hybrid A6 Χ A1 and inbred A6 was used. The experiment was laid out in randomized complete block design with factorial arrangement with three replications. The hybrid significantly surpassed it's inbred in ear weight, seed weight, seed yield and percentage of small seeds, while inbred exceeded its hybrid in row number. Non significant between hybrid and inbred was observed in seed number and ear length. The differences in seed size resulted in non significant effect on ear length, ear weight, seed number/ear and row number/ear, while seed weight seed yield and percentage of small seeds/ ear was responded for seed sizes. The percentage of large seeds superiority to small seed size in seed weight and seed yield was 5.4% and 10.5% respectively, while percentage of small seed size was 17.7% and 21.4% for large and small seed respectively. The decreasing of small seeds percentage is due to low aneuploidy of endosperm cells for large seed. It is concluded that large seed is the best for giving high seed yield a result of raise percentage of germination, seed weight, decreasing the percentage of small seeds and uniformity. At the end, it may be inferred from this research that further research may be conducted.

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