摘要
对7个甘薯叶菜型品种2006～2007年的蔓尖产量和叶片、叶柄、茎占蔓尖产量的比例及其在品种与不同采收期间的变化的研究表明：甘薯蔓尖产量在不同的品种和采收期间有显著差异，叶片占蔓尖产量的50％左右，它在采收期间的变化大于品种间的变化。而叶柄和茎各占25％，它在品种间的变化大于采收期间的变化。由于叶片营养成分高于叶柄和茎，因此，叶片在蔓尖的产量和品质中占有重要地位。对甘薯叶菜型品种蔓尖产量构成的分析为甘薯叶菜型专用品种的选育、栽培和产业化提供了一定的科学依据。
The results of studying on the yields of vine tip and the rations of foliage,petiole and stem to yield of vine tip among 7 swectpotato varieties and at different topping times in 2006 -2007 showed that there were significant differences between vine tip yields among different varieties and at different topping times,and ratio of foliage to yield of vine tip was about 50 % ,which varied more at different topping times than that among varieties, but ratios of petiole and stem to yield of vine tip were both about 25 % ,which varied more among varieties than that at different topping times. So ,foliage played an important role in yield and quality of sweetpotato for vegetable because they had more amount nutrient than petiole and stem. The analysis of architecture of vine tip yield of sweetpotatu for vegetable would provide some scientific guides for the breeding, cultivation and industrialization of sweetpotato for vegetable.
出处
《西南农业学报》
CSCD
2008年第5期1366-1369,共4页
Southwest China Journal of Agricultural Sciences
基金
农业部公益性行业(农业)专项项目(nyhyzx07-012-14)
重庆市科委“十一五”良创工程项目(10379)
关键词
甘薯
蔓尖
产量
构成
sweetpotato
vine tip
yield
architecture
