CAJ | 학술논문

采用多因素裂区试验设计,通过大样本相关、通径和逐步回归分析后,结果表明,纳罗克非洲狗尾草Setaria sphacelata cv. Narok的6个种子产量因子对种子产量的直接贡献大小排序为:x4(单位长度小花数)>x6(千粒重)>x1(花序长)>x2(单位面积生殖枝数)>x3(单位长度小穗数)>x5(单位长度种子数),说明提高单位长度小花数、千粒重和花序长是最有效提高纳罗克非洲狗尾草种子产量的途径,其次提高单位长度小穗数、单位长度小花数和单位面积生殖枝数.
채용다인소렬구시험설계,통과대양본상관、통경화축보회귀분석후,결과표명,납라극비주구미초Setaria sphacelata cv. Narok적6개충자산량인자대충자산량적직접공헌대소배서위:x4(단위장도소화수)>x6(천립중)>x1(화서장)>x2(단위면적생식지수)>x3(단위장도소수수)>x5(단위장도충자수),설명제고단위장도소화수、천립중화화서장시최유효제고납라극비주구미초충자산량적도경,기차제고단위장도소수수、단위장도소화수화단위면적생식지수.
This paper used multi-factor split plot designed field experiment, through the correlation analysis, path coefficient analysis and stepwise regression analysis for seed yield components and seed yield. The result showed that the order of six seed yield components of Setaria sphacelata contributing to seed yield was florets/cm, 1 000 seeds weight, inflorescence length, fertile tillers/m2, spikelet numbers /cm and seed numbers/cm in sequence. So improving the florets/cm, 1 000 seeds weight and inflorescence length was the most effective way to increase seed yield. The next was to increase spikelet numbers/cm, florets/cm and fertile tillers/m2.