Effect of N application on N accumulation in seeds of Brassica napus L. cultivar Yangyou No. 4
Trials were carried out in 2003-2004 to investigate the N accumulation in seeds of rapeseed cultivar Yangyou No. 4 under four N applications. The main results were as follows. (1) The Richards equation could be used to describe the process of N accumulation in seeds (R2=0.9970**-0.9995**); (2) The rate, time and total amount of N accumulation in seeds increased along with the increase of N fertilizer application. Seventy percent of the increased N accumulated in middle stage and 30％ in late stage;(3)The ratios of N accumulation time and amount in early stage were 60％-50％ and 40％-30％ respectively. Both of them decreased along with the increase of N fertilizer application. In middle and late stages, the ratios of N accumulation times were all about 20％-25％, and those for the amounts were 50％-55％ and 10％-15％, respectively. They all increased with the increase of N fertilizer application.
Rapeseed (Brassica napus L.) seed N accumulation Richards equation
ZUO Qingsong LENG Suohu XU Wangchun
Key Laboratory of Crop Cultivation and Phisiology of Jiangsu Province, Yangzhou University, Yangzhou 225009, China
国际会议
第十二届国际油菜大会( The 12th International Rapeseed Congress)
武汉
英文
1036-1039
2007-03-26（万方平台首次上网日期，不代表论文的发表时间）