摘要
对3个木薯品种不同生育期的光合速率进行研究,并测定了木薯的产量和淀粉含量。结果表明,3个木薯品种的净光合速率呈先降再增后降的"S"趋势。木薯产量和淀粉含量均随时间的推进不断上升,12月达到最高。平均净光合速率高低顺序:GR911>GR891>SC201;7—11月是木薯产量提高的关键时期;9—12月是木薯淀粉累积的快速增长时期。
The photosynthetic rates of three cultivars at different development stages were studied.Additionally,the yield and starch content of cassava were determined.The result showed that the net photosynthetic rate of three cassava varieties increased again after the first drop,and finially increase.Fresh root yield and starch content of cassava were increasing as the time going,and the highest yield and starch content were gotten in December.The order of the average net photosynthetic rate was GR911GR891SC201.July to November was the critical period of increasing yield of cassava,and September to December was rapidly accumulated period of starch.
出处
《现代农业科技》
2011年第11期75-75,77,共2页
Modern Agricultural Science and Technology
基金
广西壮族自治区直属公益性科研院所基本科研业务费专项资金项目(桂热研200804
桂热研200805)
广西科学研究与技术开发计划项目主席基金(09203-03)
广西科学研究与技术开发计划项目(桂科产10100020-9)
国家木薯产业技术体系项目(nycytx-17)
关键词
木薯
光合速率
产量
淀粉含量
比较
cassava
phptosynthetic
yield
starch content
comparision
