Regulation Effects Of Mineral Element On The Waterlogging Stress Of Peanut

According to the characteristics of the rainy season in South China,5stages of peanut pegging stage, blossom a the most vulnerable to flooding, the test for this feature, the sensitive cultivar Zhonghua4and waterlogging cultivar Xiang flower2008as test material, simulating the rainy season caused by peanuts in the flowering period by needle waterlogging, then for peanut were8different foliar fertilizer, blossom needling stage, pod stage, full fruit maturity peanut growth through observation of foliar fertilizer, determination of dry matter accumulation, chlorophyll content, protective enzyme system activity, yield and quality index, comparison of different mineral nutrient changes in the treatment of peanut index of peanut yield and quality, stability, ease the provision of emergency measures and theoretical basis of the application of waterlogging stress. The results show that:(1) growth for sensitive varieties and waterlogging tolerant varieties of peanut was nutrients effectively from the aerial parts of the underground part of transfer to Ca1L, which can make the peanut to complete the transfer process in an ideal period. Spindling of Ca1R can inhibit the sensitive cultivar, and Ca2L can inhibit the spindling of waterlogging tolerance varieties.(2) the chlorophyll content of2varieties of mineral nutrients of photosynthetic indexes after treatment will be improved to a certain extent, the content of chlorophyll caused by waterlogging reduced photosynthesis weaken, played a very good effect.(3) the root activity of2varieties of resistance index of foliar fertilizer after all had an increasing trend at different stages, and mineral nutrient inhibited the activity of alcohol dehydrogenase, can effectively alleviate the root hypoxia environment brings to peanut root injury. At the same time, mineral nutrient can increase POD and CAT activity of the protective enzyme system of peanut, peanut than under normal circumstances more active. (4) the yield and quality of2varieties of peanut in foliar fertilizer production have different degrees of improvement. B2, Ca1L, Ca2L, Ca2R and N2P2K2, the sensitive variety oil; Ca2L, Ca2R improves the waterlogging tolerant varieties of oil and. N1PK1and Ca1R two treatment for waterlogging tolerance of different varieties are produced higher protein and lower fat content effect.To sum up, adjust the mineral nutrient for sensitive varieties or waterlogging tolerant varieties are very necessary,...