甘薯新品种“渝苏303”高产生理特性的研究
Study on physiological characteristics of new high-yield sweetpotato Var. “Yusu 303”
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摘要: “渝苏303”是一个适应性广、 高产优质的粮饲、 工业兼用型新品种， 对其进行的高产生理特性研究结果表明： “渝苏303”栽后地上部早生快发， 前期茎叶生长快并形成较多分枝， 中期比较平稳， 后期下降缓慢； 地下部结薯早、 整齐， 薯块膨大早、 快， 持续时间长， 同化产物转移早、 快， 净同化率和转移率都高. “渝苏303”的这些重要生理特性为其高产栽培提供了科学依据.Abstract: A new high-yield sweetpotato var. “Yusu 303 with quality and wide adaptability can be used for food, forage and industrial source. Its high-yield physiological characteristics are researched. The growing trend of its aerial part as follows: faster reviving after transplanting, stems and leaves develop fast with many branches taking shape in ealier period, showing stability in middle period and declinging slowly in later period. On the other hand, tuberous roots under ground portion grow early and tidily, enlarged early and fast with persisting a long time, the assimilation products transport early and fast with the high net assimilation and transportation. These important physiological characteristics provide scientific basis for high-yield cultivation of Yusu 303
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Key words:
- sweetpotato /
- Yusu 303 /
- high-yield /
- physiological characteristics .
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