2020-2023年中国登记花生品种主要性状演变分析OA北大核心CSTPCD

In order to explore the development of peanut breeding in China,source distribution,breeding meth-ods,yield,quality and other related characteristics of 587 peanut varieties registered during 2020-2023 were statis-tically analyzed.Results showed that 587 peanut varieties were mainly from North China,South China and the mid-dle-and lower-reaches of the Yangtze River,of which Shandong and Henan provinces accounted for 53.83%of the total,and the breeding units were mainly scientific research institutes,accounting for 71.72%.The main breeding method was hybridization.The average growth period of peanut was 122.0 d;pod and seed yields were 4721.5 kg/hm2 and 3342.9 kg/hm2 respectively;100-pod weight and 100-seed weight were 200.7 g and 81.0 g respectively;the full Pod per plant was 16.8;pod yield,seed yield and full Pod per plant decreased by years with the registration time.In terms of quality,coefficient of variation of oleic acid content(29.91%)was the largest,and oil content(6.03%)was the smallest.There were 215,73 and 55 varieties with oleic acid content≥75%,oil content≥55%and protein content≥28%,respectively.By cluster analysis,peanut varieties were divided into 3 groups:high yield,small grain and early maturity with the Euclidean distance as 12.