摘要
研究了不同根温处理对一种彩椒苗期生长的影响 ,结果表明 :彩椒苗期生长的最适根温为 3 0℃。此时 ,叶面积增长速率、干物质积累速率、根系活力、净光合速率均达到最大值 ,根温偏高或偏低 ,幼苗生长均减缓。高根温对彩椒生长危害较大 ,且根部受害程度大于地上部 ;根温 40℃时 ,伤害最为严重 ,根系生长几乎停止。
The effect of different root temperature on growth of colour pepper(HongTaiYang) were studied. The results showed that the most suitable temperature for seedling stage of this kind of colour pepper was 30℃. At this point, the growth rate of leaf area, the accumulative rate of dry substances and the vigor of root system respectively reached their biggest values. Seedling growth became slower at lower or higher root temperature. Higher root temperature harmed the seedlings more seriously, and harmed their roots more seriously than shoots. At 40℃ root temperature, the colour pepper was injured most seriously, the growth of root system almost stopped.
出处
《江西农业大学学报》
CAS
CSCD
2003年第1期30-32,共3页
Acta Agriculturae Universitatis Jiangxiensis
基金
安徽省教委自然科学基金资助项目 (2 0 0 0JL1 97)
关键词
彩椒
根温
苗期
生长
colour pepper
root temperature
seedling stage
growth
