摘要： 基于群体生育型结构决定其功能的规律，分析了冀鲁豫夏玉米区玉米杂交种群体生育型演化进程至端的第Ⅳ演化阶段特征和演进趋向，以及该演化阶段群体生育型演化特征因素之间的复杂关系，结果显示，符合群体生育型演变进化趋向，希冀突破第Ⅳ演化阶段玉米杂交种产量水平的强优势玉米杂交种群体生育型因素组合选育模式，主要有二:1)“穗行数（X3）+百粒重（X6）+穗粗(X16)+行粒数(X12)”，其决定株粒重的多元线性回归式是Y=117.89+1.08X3+1.83**X6+2.17**X12+23.24**X16，与Y的复相关系数R=0.543**决定系数R2=0.295；2)“百粒重（X6）+行粒数(X12)+穗粗(X16)”，其决定株粒重的多元线性回归式是Y=106.45+1.75**X6+2.12**X12+24.77**X16，与Y的复相关系数R=0.451**，决定系数R2=0.293。研究结果表明，若对群体生育型演进特征主导因素百粒重与穗行数、穗粗、行粒数关系处理得当，可选育出高产水平的强优势玉米杂交种。
关键词:
冀鲁豫夏玉米区,
玉米杂交种,
群体生育型,
因素组合选育模式
Abstract: Based on the regulation of the population growth types structure deciding their function and the analysis of characters and the evolution trend of the highest stage-IV evolution stage of corn hybrid population growth types evolution process in Hebei-Shandong-Henan summer corn planting zone, this paper expounded following two selecting breeding patterns of dominate corn hybrid population growth types factors composition under certain evolution trend; (1)Rows /ear (x3) + hundred grain weight (x6) + grains/row (x12)+ear width (x16), grain weight/plant (y).Puralistic linear formula is that y=-117.89 + 1.08x3+l.83**x6+2.17**x12+23.24**x16, the correlation coefficient R = 0.543, the determination coefficient R2 = 0.295, (2) Hundred grain weight (x6) + grains/row (x12)+ear width (x16), grain weight/plant (y).Pluralistic linear formula is that y=106.45 + 1.75 **x6 + 2.12 **x12+24.77**x16,the correlation coefficient R = 0.541, the determination coefficient R2 = 0.293.The dominate factor of the evolution characters of population growth types is hundred grain weight.The relation of hundred grain weight and row per ear, ear width, grains per row is subtle.
Key words:
Hebei-Shandong-Henan summer corn planting zone,
Corn hybrid,
Population growth types,
Factors combining and selection breeding patterns
中图分类号:
赵殿轩, 苏方宏, 刘玉梅, 步丰池, 王泽立, 亢伟民. 冀鲁豫夏玉米区玉米杂交种群体生育型演变 Ⅲ 强优势玉米杂交种群体生育型因素组合的选育模式[J]. 华北农学报, 1995, 10(S1): 10-14. doi: 10.3321/j.issn:1000-7091.1995.z1.003.
Zhao Dianxuan, Su Fanghong, Liu Yumei, Bu Fengchi, Wang Zeli, Kang Weimin. Evolution of Corn Hybrid Population Growth Types in Hebei-Shandong-Henan Summer Corn Planting Zone III. Selection Breeding Patterns of Combining of Dominate Corn Hybrid Population Growth Types Factors under Certain Evolution Trend[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1995, 10(S1): 10-14. doi: 10.3321/j.issn:1000-7091.1995.z1.003.