利用灰色理论筛选通辽地区主推的高产优质玉米杂交种

USE GREY SYSTEM TO SELECT HYBRIDS OF HIGH YIELD AND QUALITY IN TONGLIAO REGION

本文应用灰色系统理论 ,根据品种的产量 ,营养品质 ,熟期、抗逆性 ,稳定性等指标 ,对多年田间试验筛选出来的 7个品种进行综合评价。结果表明 ,登海 1号 ,西玉 8号 ,农大 3138生长期偏长 ,产量潜力较高 ,营养品质好 ,适宜在优质吨粮田示范推广。西农 11,哲单 2 0生育期适中 ,适应性较强 ,营养品质优良 ,适宜在一般高产田示范推广。

According to variety yield,nutrient quality,mature period,stress tolerance,stability and other indexes,seven varieties that have been selected through field experiments for many years is synthetically evaluated.The results are as follows.The growth and development period of Denghai I,Xiyu 8 and Nongda 3138 is longer,and the potential of yield is higher and nutrient quality is better,they are suitable to popularize and demonstrate on ton-grain field.The growth and development period of Xinong 11 and Zhedan 20 is moderate,their adaptability is stronger,and nutrient quality is high.They are suitable to popularize and demonstrate on general high-yielding field.