卧龙地区年间气象条件变化对马铃薯产量和干物质积累的影响

Effects of Meteorological Condition Changing on Yield and Dry Matter Accumulation of Potato(Solanum tuberosum) in Wolong Area

在马铃薯的生长发育过程中,干物质在叶片、地上茎和块茎中的分配,随生长发育阶段不同而不同。本试验在2010和2011年不同气象条件下,对卧龙地区马铃薯干物质积累情况进行了研究。结果表明,在苗期,温水条件对马铃薯的产量有直接关系;块茎增长期的温水条件影响块茎的大小;干物质积累速率最高的是在块茎增长的中后期,较高的温度能明显提高薯块干物质的含量。

In the process of potato growth and development,the distributions of dry matter in leaves,stems and tubers were different in different growth and development stages.In this paper,the potato dry matter accumulation in Wolong area was studied under different meteorological conditions in 2010 and 2011.The result showed that the potato yield had a direct relationship with the temperature and water in seedling period,and the tuber size was affeld by the temperature and waterin tuber growth period.However,in the late tuber growth perid when the dry matter accumulation rate was the highest,higher temperature could significantly improve the tuber dry matter content.