The genealogical relationship and agronomic characters of 13 peanut varieties,breeded by Hezhou Academy of Agricultural Sciences,which had been authorized were analyzed.The results showed that 20 direct parents were i...The genealogical relationship and agronomic characters of 13 peanut varieties,breeded by Hezhou Academy of Agricultural Sciences,which had been authorized were analyzed.The results showed that 20 direct parents were involved in 13 varieties,80%of which came from Guangxi and Guangdong Province.Shanyou 523 and Yueyou 193 were used for more times;The genealogical analysis of these certified varieties can be traced back to 30 ancestral parents,the proportion of which contained consanguinity of Fu Peanut and Shitouqi were 84.62%.This demonstrated that genetic basis was rather narrow and it was quite difficult to make a great breakthrough in breeding.Plant height,total number of branches and oil content changed very little,100-pod weight and pod yield increased,whereas there was a downward trend in shelling percentage.Therefore,it is quite necessary to further broaden the germplasm basis of parents,enrich breeding methods,and continue to strengthen disease-resistant breeding and specific peanut breeding.展开更多
文摘The genealogical relationship and agronomic characters of 13 peanut varieties,breeded by Hezhou Academy of Agricultural Sciences,which had been authorized were analyzed.The results showed that 20 direct parents were involved in 13 varieties,80%of which came from Guangxi and Guangdong Province.Shanyou 523 and Yueyou 193 were used for more times;The genealogical analysis of these certified varieties can be traced back to 30 ancestral parents,the proportion of which contained consanguinity of Fu Peanut and Shitouqi were 84.62%.This demonstrated that genetic basis was rather narrow and it was quite difficult to make a great breakthrough in breeding.Plant height,total number of branches and oil content changed very little,100-pod weight and pod yield increased,whereas there was a downward trend in shelling percentage.Therefore,it is quite necessary to further broaden the germplasm basis of parents,enrich breeding methods,and continue to strengthen disease-resistant breeding and specific peanut breeding.