摘要
对叶菜型甘薯品种百薯1号的茎尖产量和薯块产量进行了研究。结果表明,随着采摘次数的增加,茎尖产量呈对数函数增加,其曲线方程为y赞=9921.500lnx+2671.300(R2=0.9918);随着采摘次数的增加,薯块产量呈直线函数降低,其回归方程为y赞=-2009.600x+35776.000(r2=0.9417);茎尖产量与薯块产量呈负相关关系,其直线回归方程为y赞=-0.636x+37246.000(r2=0.8264)。百薯1号表现茎尖产量和薯块产量双高产,在连续采摘7次茎尖条件下茎尖产量可达22305.0kg/hm2,同时薯块产量仍可达19311.0kg/hm2;在完全不采摘茎尖条件下,薯块产量则可达34908.0kg/hm2。
The top caudex yield and the tuber yield of sweet potato Baishu NO.1 as leaf-edible vegetable were studied in this paper. The results showed that the top caudex yield increased as logarithm with the equation y=9 921.5001nx＋2 671.300 （R2=0.991 8）when the picking times was increased, the tuber yield reduced as linearity with the equation y=-2 009.600x＋ 35 776.000 （r2=0.941 7） when the picking times was increased. There was positive pertinence between the top caudex yield and the tuber yield with the equation y=-0.636x＋37 246.000（r2=0.826 4）. The top caudex yield and the tuber yield were 22 305.0 kg/hm^2 and 19 311.0 kg/hm^2 respectively with picking seven times continuously, and the tuber yield was 34 908.0 kg/hm at the same time with no picking.
出处
《湖北农业科学》
北大核心
2010年第2期298-299,306,共3页
Hubei Agricultural Sciences
基金
河南省教育厅科技攻关项目(2006550004)
关键词
叶菜型甘薯
百薯1号
采摘次数
茎尖产量
薯块产量
sweet potato as leaf-edible vegetable
Baishu No.l
picking times
top caudex yield
tuber yield
