摘要
以冀张薯8号为试材,研究整薯播种和切块播种在不同生育时期干物质积累和分配规律对马铃薯产量的影响。结果表明:马铃薯在整个生育期植株干物质积累量表现为"慢—快—慢"的特点,马铃薯生育期间不同器官干物质积累中心依次为叶片、地上茎、块茎;整薯播种在整个生育期叶片、地上茎、根、块茎、匍匐茎干物质积累量前者均大于切块播种,各器官的最大日增量所处的时期分别为块茎增长初期、块茎增长后期、块茎增长初期、淀粉积累期、块茎形成期,整薯播种的最大日增量分别为0.73、0.39、0.27、3.65、0.06 g/d,切块播种的最大日增量分别为0.70、0.30、0.20、3.64、0.06 g/d,且整薯播种出苗早、薯块形成早、匍匐茎的干重也较切块播种多,整薯播种产量比切块播种高19.4%。
We selected Jizhangshu No.8 varieties, the experiment researched the influence in different development stages of dry matter accumulation of whole seed tuber sowing and piece seed tuber sowing.The results showed that, the whole growth plant accumulation of dry matter showed ＂slow-fast-slow＂. The distribution of dry matter in leaves and roots, stems, tubers and stolon were different in every stages.And planting the whole potato sprout and shaped earlier ,and the dry matter of stolon are higher, the whole seed tuber sowing of Jizhangshu No.8 accumulation of dry matter and yield were higher than piece seed tuber sowing, Each organ of the maximum daily increment are in the early period of tuber growth, he late period of tuber growth , the early period of tuber growth, starch accumulation stage, the early tuber formation,the largest increment of the whole seed tuber sowing were 0.73, 0.39, 0.27, 3.65 and 0.06 g/d respectively,and the largest increment of piece seed tuber sowing were 0.7, 0.3, 0.2, 3.64 and 0.06 g/d respectively, and the increase rate of yield was 19.4%.
出处
《广东农业科学》
CAS
CSCD
北大核心
2013年第21期24-27,共4页
Guangdong Agricultural Sciences
基金
国家公益性行业(农业)科研项目(3-6)
张家口市科技攻关计划项目(0711036C-2)
关键词
整薯播种
切块播种
干物质
产量
whole tuber sowing
piece tuber sowing
dry matter
yield
