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在吉林省东部山区(桦甸)和中部地区(公主岭)进行吉单47玉米新品种在高产条件下的产量构成指标及高产群体结构特征的研究。结果表明,吉单47具备高产潜力,在最佳肥水供给条件下,最适密度范围为5.0~6.0万株/hm2,群体叶面积指数高达6.1~6.5,最高产量为13 987.3 kg/hm2。
A study was made on the yield components of high-yielding maize varieties and the characteristics of high-yielding population structure in a new maize variety of “Jimo 47” in mountainous areas of eastern Jilin Province (Huadian) and central areas (Gongzhuling). The results showed that Jidan 47 possessed the high yield potential. Under the optimum fertilization conditions, the optimal density range was 5.0 ~ 60 000 plants / hm2, the leaf area index of the group reached 6.1 ~ 6.5 and the highest yield was 13 987.3 kg / hm2.