Effect of different meteorological conditions on the yield of high oleic acid peanut
To explore the effect of different meteorological conditions on the yield of high oleic acid peanut,19 varieties derived from 5 main peanut producing areas,such as Henan and Shandong province,were planted in Zhengzhou from 2019 to 2021,meteorological data such as 10-day average temperature,10-day precipitation and 10-day sunshine hours during the key growth period of peanuts(from June to September)were collected,and the yield data of each variety were combined for comprehensive analysis.The results showed that the varieties had dif-ferent response to temperature,precipitation and sunshine hours.Jihua 16 and Jihua 11 were more sensitive to tem-perature and sunshine hours at flowering and peg setting stage.The abnormal high temperature at this stage would cause the yield to drop significantly.The yields of Zhonghua 413,Zhonghua 412 and Huayu 917 were significantly negatively correlated with 10-day precipitation,and be least tolerance to waterlogging.The stability analysis of vari-eties showed that 10 varieties with high oleic acid,including Kainong 1768,Nanchong 1704,Jinong 16,Kaixuan 016,Huayu 961,Zhengnong 25,Zhengnong 23,Jinong 11,Huayu 633 and 1508G,had good inter annual stability.The research provides guidance for the cultivation and further utilization of high oleic acid varieties.