Effects of Planting Density on Fresh Ear Yield and Commodity Quality of Fresh Eating Waxy Corn Variety Sukenuo No.3

[Objective] The research aimed to study the effects of different planting densities on the fresh ear yield and commodity quality of fresh eating waxy corn variety Sukenuo No. 3.[Method] The effects of different planting densities( 5. 25 × 104,6. 00 × 104,6. 75 × 104,7. 50 ×104,8. 25 ×104and 9. 00 × 104 plants / hm2) on the fresh ear yield and commodity quality of Sukenuo No. 3 were studied to clear its suitable planting density in surrounding area of Nanjing in spring by the purpose of harvesting fresh ear.[Result]Yield of fresh ear showed downward parabola trend with the increase in planting density. According to planting density increased,plant height,ear height,lodging rate,no ear plant rate and barren tip were increased,while double spike rate,ear length,ear diameter,ear row number,kernels per row,100 grain weight and single ear weight were decreased.[Conclusion] In order to obtain high fresh ear yield and better commodity quality,the best planting density of Sukenuo No. 3 was67 500 plants / hm2 in spring of Nanjing.