不同熟期夏玉米品种生长发育特性与产量形成的关系

赵继玉,任佰朝,赵斌,刘鹏,张吉旺

Relationship Between Growth and Development Characteristics and Yield Formation of Summer Maize Varieties Differing in Maturities

ZHAO JiYu,REN BaiZhao,ZHAO Bin,LIU Peng,ZHANG JiWang

表5 不同熟期夏玉米品种的雄穗发育特性

Table 5 Tassel traits of summer maize hybrids differing in maturity

年份 Year 品种 Hybrid 雄穗长度 Tassel length (cm) 雄穗分枝数 Tassel branch numbers 雄穗总小花数 Total tassel spikelet numbers 小花败育率 Spikelet abortion rate (%) 有效小花数 Effective spikelet numbers 2017 DH518 61.0a 6c 620c 3.44c 599c HZ8 62.5a 8bc 604c 3.11c 585c ZD958 54.8b 23a 1825a 12.69a 1594a DH605 57.7b 10b 791b 7.99b 728b 2018 DH518 59.7ab 6d 624c 3.6c 602c JNK728 61.6a 9c 611c 3.3c 591c ZD958 55.9c 22a 1804a 12.3a 1581a DH605 57.7bc 11b 792b 6.9b 737b