不同产量潜力甘薯光合产物的生产、运转与块根产量的关系  

Relationship between the Assimilate Production & Operation and the Root Tuber Yield of Sweetpotato Varieties with Different Yield Potential

作　　者：柴沙沙[1,2] 刘兵 雷剑[1] 王连军[1] 苏文瑾[1] 史春余[2] 杨新笋[1] 

机构地区：[1]湖北省农业科学院粮食作物研究所,武汉430064 [2]山东农业大学农学院,山东泰安271018 [3]湖北永业行评估咨询有限公司,武汉430062

出　　处：《湖北农业科学》2016年第24期6367-6371,共5页Hubei Agricultural Sciences

基　　金：国家甘薯现代产业技术体系建设项目(CARS-11-C-15);湖北省农业科技创新中心资助项目(2007-620-001-03);美洲甘薯资源引进与利用项目(2013-Z6);公益性科技研究项目(2012DBA53001);科技部国际合作专项(2011DFB31620);湖北省农业科学院青年基金项目(2015NKYJJ39)

摘　　要：选取中国主栽的食用型甘薯品种龙薯9号、红香蕉、泰中6号、苏薯8号、遗字138和北京553进行大田试验,研究不同产量潜力甘薯品种光合产物的生产、运转及其与块根产量的关系。结果表明,高产品种整个生育期干物质积累快,光合产物向块根输送多,同化物在块根中的分配率较高,而且高产品种的标记叶合成的光合产物能够较多地运出。因此,叶片光合作用形成的光合产物能够及时地往外运输,是高产甘薯品种高产的重要保证。高产品种具有较高的经济系数。A field experiment was conducted at agricultural experiment station of Shandong Agricultural University, Tai＇an,Shandong province in two growth seasons of 2011 and 2012. To study the relationship between the assimilate production operation and the root tuber yield of sweetpotato varieties with different root tuber yields. The results showed that during the whole growth period, dry matter of the high-yielding varieties accumulated faster. There was more assimilate transported to root, and assimilate distribution in root was higher. The assimilate of the high-yielding varieties produced by the leaf could be dispatched timly. This is the important base for high-yielding varieties to get higher yield. High yielding varieties had high economic coefficient.

关 键 词：甘薯 块根产量 光合产物分配 光合产物运转 

分 类 号：S531[农业科学—作物学] Q945[生物学—植物学]