CAJ | 학술논문

本试验选用30个晚熟玉米杂交种为供试材料,采用随机区组设计.经过对行粒数、株高、穗行数、千粒重、穗位高等5个农艺性状进行相关分析和通径分析表明,对产量影响最大的因素是行粒数(P_(0.4)=0.834 5**,r=0.805 6**)和千粒重(P_(0.3)=0.527 0**,r=0.584 9**),相关和通径系数都达极显著水平,其次是穗行数,株高,穗位高.指出在吉林省晚熟玉米育种中,提高行粒数和千粒重,适当增加穗行数并兼顾其他农艺性状是提高玉米产量的有效途径.
본시험선용30개만숙옥미잡교충위공시재료,채용수궤구조설계.경과대행립수、주고、수행수、천립중、수위고등5개농예성상진행상관분석화통경분석표명,대산량영향최대적인소시행립수(P_(0.4)=0.834 5**,r=0.805 6**)화천립중(P_(0.3)=0.527 0**,r=0.584 9**),상관화통경계수도체겁현저수평,기차시수행수,주고,수위고.지출재길림성만숙옥미육충중,제고행립수화천립중,괄당증가수행수병겸고기타농예성상시제고옥미산량적유효도경.
Thirty late—maturing maize hybrids were tested using a randomized complete block design. Correlation and path between yield and main agronomic characters was analyzed. The most contribution to the yield was from number of kernels per row and thousand-seed weight with p and r value (P0.4 = 0.8345**, r=0.8056~(**), P0.3 =0.5270~(**), r =0.5849~(**)). The correlation value showed highly significant differences at 1% level. The following was number of rows per ear, plant height and ear height. It was pointed out enhancing number of kernels per row and thousand-seed weight, increasing number of rows per ear properly and giving dual attention to main agronomic characters is an effective way to enhance the corn yield in late-maturing maize breeding of Jilin province.