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Chinese Agricultural Science Bulletin ›› 2019, Vol. 35 ›› Issue (23): 13-17.doi: 10.11924/j.issn.1000-6850.casb18060012

Special Issue: 生物技术 玉米

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Maize Varieties of Different Genotypes: Tiller Characteristics and Their Relationship with Yield Traits

  

  • Received:2018-06-03 Revised:2019-07-17 Accepted:2018-07-24 Online:2019-08-13 Published:2019-08-13

Abstract: To clarify the difference of tiller characteristics of maize varieties of different genotypes, and the effect of tillering on agronomic characters and yield traits, 37 varieties were used as materials, and the tiller differences were compared with multiple comparison and correlation analysis. The correlations between the tillering rate and plant height, ear height, yield as well as yield components were analyzed. The results showed that the tillering rate was significantly different among different varieties. According to the tillering rate, maize varieties were divided into three types: high, medium and low tiller types. The tillering rate of‘DK56’was the highest, up to 93.33%. The tillering rate of‘Xundan211’was the lowest as 0.00%. There were significantly positive correlations between the tillering rate and plant height and ear row number of low tiller rate varieties, and the correlation coefficient was 0.323 and 0.609, respectively. There were no significant correlations between the tillering rate and ear height, row grain number, grain weight and yield. The tillering rates of different genotype varieties were significantly different in maize, and there was no effect of tillering or nontillering on maize yield.