Effect of plant density and planting pattern on grain yield of maize 666

Subject Areas : crop production

ناصر شهسواري ¹

1 - . دانش آموخته کارشناسی ارشد رشته کشاورزی ـ زراعت خوی،ایران ،واحد خوی ـ دانشگاه آزاد اسلامی.

Received: 2017-07-27 Accepted : 2018-01-22 Published : 2018-05-31

Keywords: density , grain yield , maize 666 , planting pattern,

Abstract :

Modifying canopy structure to provide conditions in which the canopy crop can absorb better sunlight has been known as important strategy in increasing crop yield. This field study includes an experiment conducted as a split-plot in randomized complete block design with three replications in Khoy research field station in 2011 cropping season. The main plots were two levels of row spacing ( 50 and 60 ) and sub plots were the integration of planting pattern ( zigzag and oblong ) with plant densities ( 70000, 80000 and 90000 plants ha ). Results showed that main plots didn't have any significance on the field study characteristics, but indicated that sub plots had it on dry weight of ear, number of kernel rows, grains per ear, 100 grain weight, grain yield, biologic yield and harvest index. However, the highest grain yield was obtained from planting pattern ( oblong ) and density 90000 plants ( 12530kg. ha ) . Interactive effect of ( planting pattern and density ) with ( level of rows) on number of kernel rows and grain per ear was significant. It seems that planting pattern ( oblong ) and density (90000 plants. Ha ) produces the highest grain yield for the farmer.

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