抑制无效分蘖对水稻产量和非结构性碳水化合物的影响-湖南农业大学.PDF

() 2015 6 41 3 Journal of Hunan Agricultural University (Natural Sciences), Jun. 2015, 41(3):229–233 DOI:10.13331/ki.jhau.2015.03.001 抑制无效分蘖对水稻产量和非结构性碳水化合物的影响 1,2 1* 1 1 1,2 1,2 1,2** (1. 510642 2. 510642 ) 摘 要(20 2835 mmD D D ) 1 2 3 D1D3 D2 D2D3 D1 D3 关 键 词 中图分类号S511.044 文献标志码：A 文章编号：1007− 1032(2015)03−0229−05 Effects of physical restriction to ineffective tiller on non-structural- carbohydrates accumulation and yields of rice 1,2 1* 1 1 1,2 1,2 1,2** Pan Shenggang Wu Yingyi Xiao Yao Chen Yanhong Tian Hua Xiao Lizhong Tang Xiangru (1.College of Agriculture, South China Agricultural University, Guangzhou 510642, China; 2.Scientific Observing and Experimental Station of Crop Cultivation in South China, Ministry of Agriculture, Guangzhou 510642, China) Abstract: Effects of physical restriction to ineffective tiller on non-structural-carbohydrates accumulation (NSC) and yields were studied by a pot experiment with water culture based on two rice cultivars, Peizataifeng and Yuejingsimiao. Physical restriction were conducted by designing different transplanting holes, they were 20 mm, 28 mm and 35 mm, denoted as D1, D and D , respectively. Compared to D and D , percentage of valid panicle, total grain number per panicle and yields of 2 3 1 3 Peizataifeng and Yuejingsimiao from D were significantly increased. NSC in stem and sheath from D and D were 1 2 3 remarkably higher than those