中国蔬菜Issue(12)：88-93,6.
不同海拔高度对茭白生长及孕茭的影响
Effects of Different Altitudes on Growth and Culm-swelling of Zizania caduci-fl ora(Turcz.)Hand.-Mazz.
摘要
Abstract
The present study investigates the effects of high altitudes (200-1 000 m) on the growth and culm-swelling of Zizania caduciflora(Turcz.)Hand. -Mazz..The results showed that the sprout-ing date,leafing and peak value of plant height increase at high altitudes were significantly delayed and lower than those grown at lower altitudes.Sprouting of Zizania caduciflora(Turcz.)Hand. -Mazz. in high altitudes requires over 5 °C effective accumulated temperature than in low altitudes. Its leafing rate, plant height increasing speed showed positive correlation with the effective accumulated temperature in various altitudes.Culm-swelling was observed to take place in the following order:410 m> 650 m> 1 008 m > 815 m.The culm-swelling stage usually occurred during the period,when the tempera-ture was suitable.Therefore,the effect of altitude on growth and culm-swelling of Zizania caduciflora (Turcz.)Hand.-Mazz. was mainly realized by temperature differences at different altitudes.Suppres-sion of growth and metabolism of Ustilago esculenta by high temperature is most likely to be the limiting factor for culm-swelling of Zizania caduciflora(Turcz.)Hand. -Mazz. during hot summer days.关键词
茭白/黑粉菌/孕茭/海拔高度/生长Key words
Zizania caduciflora(Turcz.)Hand.-Mazz./Ustilago esculenta/Culm-swelling/Altitude/Growth分类
农业科技引用本文复制引用
邓建平,石敏,黄建中,郭得平,胡振亮..不同海拔高度对茭白生长及孕茭的影响[J].中国蔬菜,2013,(12):88-93,6.基金项目
公益性行业（农业）科研专项 （）
