Abstract:

The Influence of Different Ecological Condition on Growth and Yield of Corn Variety Zhengdan 23 Ma Ruixia, Liu Wencheng (Biology and Food Engineering College, Anyang Institute of Technology, Henan Anyang 455000) Abstract: The influence of different ecological condition on growth and yield of corn variety Zhengdan 23 was studied through sowing-date experiment at Ayang city. The yield, length and chinckness of ear, and weight of a hundred seeds dropped, the growing process quickened , the maximum leaf area index and dry matter accumulation declined, along with the postponement of summer sowing, The ecological adaptability for high yield of Zhengdan 23 was that whole growing accumulated temperature was 2835.1~3038.2℃ and whole growing daily mean temperature was 25.3~25.7℃, whole growing accumulated sunshine hour was 484.2~630.4h and whole growing daily mean sunshine hour was 4.3~5.3h. Key words: Corn, Growth, Yield, Eco1ogical Condition