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本试验通过以35份糯玉米杂交组合为供试材料,对糯玉米的14个主要性状进行相关和通径分析,结果表明:鲜穗产量与单穗重、穗长、穗粗、轴重呈极显著正相关,相关系数分别为:0.753 8、0.515 7、0.551 5、0.476 5;与行粒数呈显著相关,相关系数为0.422 6。在诸多性状中,对鲜穗产量直接作用最大的性状为轴重,效应值为0.799 6;其次为单穗重,效应值为0.795 5;其它性状依次为穗粗>百粒重>穗位>秃尖长>株高>支链淀粉含量>轴粗>行粒数>茎粗>穗长>穗行数。
In this experiment, the correlation analysis and path analysis of 14 main characters of waxy maize were carried out by using 35 waxy corn hybrid combinations as experimental materials. The results showed that the fresh ear yield was positively correlated with single ear weight, panicle length, ear diameter, The correlation coefficient was 0.753 8,0.515 7,0.551 5,0.476 5 respectively, which was significantly correlated with the grain number of the line, the correlation coefficient was 0.422 6. Among the traits, the most direct trait of fresh spike yield was axle weight with an effect value of 0.799 6, followed by a single spike weight, with an effect value of 0.795 5. The other traits followed were spike diameter, 100 grain weight, ear position, Bald long> plant height> amylopectin content> axis coarse> grain number> stem diameter> ear length> ear number.