Effects of B, Mo, Zn, and Their Interactions on Seed Yield of Rapeseed (Brassica napus L.)

作     者：YANG Mei SHI Lei XU Fang-Sen LU Jian-Wei WANG Yun-Hua YANG Mei1, SHI Lei1,2, XU Fang-Sen1,2,2, LU Jian-Wei1 and WANG Yun-Hua1 1Microelement Research Center, Huazhong Agricultural University, Wuhan 430070 (China). 2National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070 (China)

作者机构：Microelement Research Center Huazhong Agricultural University Wuhan 430070 （China）. National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural University Wuhan 430070 （China） 

出 版 物：《Pedosphere》 (土壤圈（英文版）)

年 卷 期：2009年第19卷第1期

页      面：53-59页

核心收录：

学科分类：0818[工学-地质资源与地质工程] 09[农学] 090101[农学-作物栽培学与耕作学] 0903[农学-农业资源与环境] 0901[农学-作物学] 

基　　金：supported by the Program for New Century Excellent Talents in University, China (No.NCET-05-0666) the Ministry of Science and Technology of China (No.2006BAD25B01) 

主　　题：boron Brassica napus molybdenum seed yield zinc 

摘      要：A field experiment was conducted to study the effects of boron (B), molybdenum (Mo), zinc (Zn) and their interactions on seed yield and yield formation of rapeseed (Brassica napus L. var. Huashuang 4). Application of B fertilizer to a sandy soil increased the seed yield by 46.1% compared to the control and also created a considerably higher seed yield than the two treatments solely applying Mo and Zn fertilizers, which suggested that B was a main constraint for the seed yield of Huashuang 4 in this experiment. The effect of B fertilizer on the seed yield was attributed to an increase in the number of seeds per silique and siliques per plant. The combined application of B with Mo or Zn resulted in higher seed yield than the application of B, Mo or Zn alone, and the seed yield of the B+Mo+Zn treatment was the highest in all treatments, 68.1% above the control. Dry matter accumulation of seed followed a typical S-shaped curve and it was higher in plants supplied with B than in plants without B. A small but significant increase in the seed oil content and an improvement in the oil quality were also observed in all treatments compared with the control. These results suggested that optimal micronutrient application could provide both yield and quality advantages for rapeseed in poor soil.