Selecting High-yield Clones of Chinese fir Seed Orchard in Southern Jiangxi Province
This study aims to explore the difference of 1a seed of 40 clones in the 2nd generation seed garden of Chi-nese fir in Gaobeng Forest Farm,Chongyi County,Jiangxi Province.The seed high-yielding clones were selected as the theoretical basis for comprehensive screening.The results showed that there were the significant differences in the cone yield,seed yield and seeding rate among different Chinese fir clones.Specifically,the average cone yield,seed yield and seeding rate of each parent tree were 20.87 kg,1.01kg and 4.52%,respectively.The cone yield of clonal No.63 was the highest(52.57 kg),which was 151.87%higher than the average value.The highest seed yield and seeding rate of No.30 clones were 3.05 kg and 6.31%,respectively,which were higher than the total average value of 201.98%and 39.60%.There was the significant positive correlation between cone yield and seeding rate.11 high-yielding clones of Chinese fir were selected with the seed yield greater than 20%and seeding rate greater than the total mean.
NETL
NSTL
万方数据
维普
