Year: 2010
Type: article
Abstract: A huge amount of precipitation and higher water table during rapeseed growing season in Yangtze River regions grown with rice and rapeseed rotation system and heavy soil result in frequent waterlogging occurrence.A pot experiment was performed at four growth stages with three waterlogging time treatments which were followed by normal water administration.Two rapeseed lines with different levels of waterlogging tolerance were used to investigate the effects of the sustainable waterlogging time on rapeseed growth and yield.The treatments were waterlogging of 10, 20 and 30 days at seedling and budding stages and 10, 15 and 20 days at flowering and maturity stages.The results showed that (1) the sustainable waterlogging time affected the development of roots, the growth of up-ground part of plant and yield, which was significantly different between two lines; (2) waterlogging at seedling stage led to the decrease of chlorophyll content in leaves, and the increase of malondialdehyde and proline contents; (3) sensitivity to waterlogging judged by yield in different developmental stages of rapeseed ranked in the order of budding stage, flowering stage, seedling stage, podding and maturity stages; (4) the research on effects of sustainable waterlogging time on yield can provide a basis for estimating the influence of continuous rainfall on rapeseed production.
Source: ACTA AGRONOMICA SINICA
Institution: Huazhong Agricultural University
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: bronze
OpenAlex ID: W1997400875