玉米性状变异的因子分析及育种学启示  

The Strategy of Searching for the Maize Breeding by Means of the Factor Analysis Method

作　　者：游福欣 张富才 檀尊社 赵保献 陈润玲 雷晓兵 韩卫红 

机构地区：[1]河南省洛阳市农科所,洛阳471022 [2]河南宝丰县农科所,宝丰467400

出　　处：《中国农学通报》2003年第4期26-27,59,共3页Chinese Agricultural Science Bulletin

基　　金："九五"国家科技攻关项目 (96 -0 0 2 -0 3)

摘　　要：应用因子分析法对河南省 1999年玉米区域试验 (直播组 )品种各性状变异的因子进行了分析研究 ,结果表明 :穗位、穗长、生育期、行粒数、株高和出籽率是易于协同改良性状 ,行数、秃尖和千粒重是难以同步改良的性状 ,只能协调发展以获取最佳效果。提高行粒数、改良穗长、协调行数、千粒重二者之间的关系 ,以选育出生育期短、行粒数多、出籽率高的较矮杆组合为目标的策略 ,是进一步提高玉米生产水平的重要途径。The paper analyzed the main characters of the Henan early maturity maize region test in 1999method of the factor analysis .The result showed: the spikethe spikethe growth the rowthe plant height and the forming grains rate were easy to cooperatewich, yet the Know number, the Bald tip and TGW were difficult. Through enhancing the row grains and the spike length and coping witch the relationship of the row numbers and the low-grain rate to the aim with the character of the shorter growth period. more row grains, higher forming grains rate and lower plant height was the important way to improve the main yield.

关 键 词：玉米 性状变异 变异因子 育种学 区域试验 行粒数 穗长 生育期 出籽率 矮杆组合 

分 类 号：S513[农业科学—作物学]