Boron uptake and distribution in two oilseed rape (Brassica napus L.) cultivars with different boron efficiency and their plants grafted each other
To examine the mechanism for boron efficiency in oilseed rape (Brassica napus L.), boron uptake and distribution in two oilseed rape cultivars with different boron efficiency and their plants grafted each other were studied under the condition of solution culture experiment. Test results indicated that boron deficiency significantly decreased the boron content in the shoots and roots in grafted or non-grafted oilseed rape plants, but the decrease degree in the boron-efficient oilseed rape cultivar was the least,that of the boron-inefficient one was the most, and their plants grafted each other was in the middle of them. The effects of boron deficiency on boron accumulation in shoots in all oilseed rape plants were similar to their boron content. Furthermore, there was a tendency that the boron distribution rate in the shoots of boron-efficient cultivar and the plant grafted onto the boron-efficient rootstock was higher than that of boron-inefficient one and the plant grafted onto the boron-inefficient rootstock, respectively,whether boron supply was sufficient or deficient. It was suggested that the oilseed rape boron efficiency might be a cooperative consequence of boron absorption and transportation fiom roots to shoots.
Oilseed rape (Brassica napus L.) cultivars graft boron efficiency absorption distribution
GUO Lili GENG Mingjian SHI Lei ZHAO Zhuqing ZHU Duanwei
Key Laboratory of Subtropic Agricultural Resource and Environment, MOA, Wuhan 430070, China
国际会议
第十二届国际油菜大会( The 12th International Rapeseed Congress)
武汉
英文
1050-1052
2007-03-26（万方平台首次上网日期，不代表论文的发表时间）