玉米杂交种的同异分析法综合评价  

Comprehensive Evaluation on Identical and Different Analysis on Maize Hybrid

作　　者：王国杰[1] 王金召[1] 安旭华 贾耀军[1] 乔旭[1] 张明友[1] 别海[1] 

机构地区：[1]河南省郑州市农林科学研究所,河南郑州450005 [2]河南省郑州市荥阳农业科学研究所,河南郑州450000

出　　处：《安徽农业科学》2008年第16期6605-6606,共2页Journal of Anhui Agricultural Sciences

摘　　要：[目的]为玉米杂交种的合理评价提供科学依据。[方法]根据2000年河南省玉米杂交种区试10个点的结果(直播组),确定各性状的理想值,求品种与理想品种各性状的同一度,确定各性状在品种综合评价中的权重,求各个品种与理想品种的差异度和联系度。[结果]玉米杂交种各性状的权重系数不同,产量、穗行数、穗粗性状的权重系数较大,黑粉病率和青枯病率的权重系数较小。参试品种与理想品种性状联系度越大,品种越优良。同异分析法对品种的优劣排序的结果和参试品种的产量大小排序的结果有一定的差异。联系度值可以同时评价玉米杂交种的丰产性和稳产性。[结论]同异分析法可以比较全面、准确地判断玉米杂交种的优劣。[ Objective ] Tne study aimed to provide a scientific base for rational estimation maize hybrid. [ Method] Based on the results from regional test of maize hybred （direct-seeded group） in 10 sites in Henan province in 2000, the identical degree of different characters between varieties and ideal variety after the ideal value of different characters were determined and the difference degree and connection degree of varieties and ideal variety were requested after weights of different characters in cormprehensive variety estimation were determined. [ Result] Weight coefficients varied with different characters of maize hybrid. The weight coefficients of yield, number of rows per ear and ear thick were bigger and that of the rate of smut diseases and bacterial wilt were smaller. The bigger the coimection degree between tested varieties and ideal variety was, the more excellent the test varieties were. The result of advantage and disadvantage ordering of varieties by identical and different analysis method was different with that by yield ordering of tested varieties. The value of connection degree could estimate the yield productivity and stability simultaneously. [Conclusion] Identical and different analysis method could determine the advantage and disadvantage of maize hybrid comprehensively and accurately.

关 键 词：玉米 同异分析法 理想品种 

分 类 号：S513[农业科学—作物学]