C31等5个杂交油茶品种高位嫁接试验
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中图分类号：S511.038;S339.5;S756.5
文献标识码：A 文章编号：1001-9499（2025）03-0006-03
AbstractTo addressthe issue of replacing low-yield Camellia oleifera varieties，five hybrid varieties（ C31; C32. C42. C43 and C53 ） were introduced in 2019 for a top-grafting experiment on common white-flowered Camellia oleifera. Results after four years of grafting showed that C31 had a survival rate of 90.83% ， a new shoot growth of 15.70cm ，a crown growth of 103.09cm ， and an average of 37.73 fruits per plant. C32 showed a survival rate of 93.95% ， a new shoot growth of 18.58cm ， a crown growth of 104.50cm ，and an average of 19.55 fruits per plant. C43 had a survival rate of 92.63% ， a new shoot growth of 14.95cm ，a crown growth of 105.89cm ，and an average of 22.3O fruits per plant. In contrast， the differences between C42 and C53，with survival rates of 61.80% and 60.50% ， new shoot growth of 14.03cm and 15.75cm ，crown growth of 93.30 cm and 88.84cm ，and an average of 10.03 and 7.50 fruits per plant， respectively， were significant. Therefore， it is evident that the three varieties C31 C32， and C43 are well-adapted to the natural environmental conditions of this region， making them suitable for promotion as new varieties for the renewal of Camellia oleifera in the low mountainous areas of this region.
Key words Camellia oleifera;hybrid varieties; top-grafting
油茶（Camelliaoleifera）属常绿灌木或小乔木，盛果期可达80年，树龄可高达100 年以上[1-31，但低产一直是制约油茶发展的主要问题[4]，浙江省遂昌县现有老油茶林 5 000hm2 ，以普通白花油茶（Camelliaoleifera）为主，产油 75～100kg/hm2 ，产值不足7500元 /hm2[5] 。（剩余3499字）
