Analysis of Carbon Content in Off-season Flowering and Non-flowering Longan Trees  

作　　者：Ziqin YANG Xingxing CHEN Lei ZHANG Jiwang HONG Songgang LI 

机构地区：[1]Tropical Crops Genetic Resources Institute,Chinese Academy of Tropical Agricultural Sciences / Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China,Ministry of Agriculture / National Cultivar Improvement Center of Tropical Fruit Tree [2]Henan Vocational College of Agriculture

出　　处：《Agricultural Biotechnology》2014年第4期36-38,44,共4页农业生物技术（英文版）

基　　金：Supported by National Nonprofit Institute Research Grant of CATAS-TCGRI(1630032014017);Special Fund for Agro-scientific Research in the PublicInterest(201003021);China Agriculture Research System(CARS-33-25)

摘　　要：After flower induction, some longan trees can successfully blossom and bear fruit, while others with similar tree body status can only sprout leaf buds. In order to investigate the main reason for these differences, in this study, off-season flowering and non-flowering longan trees were used as experimental materials to analyze the changes of carbon content in mature leaves, tender leaves, mature shoots, tender shoots and terminal buds of longan trees after flower induction by potassium chlorate. The result showed that carbon content played an important role in flowering process. Off-season longan trees with carbon content in mature leaves reached 50.93 mg/g could successfully blossom, but those with carbon content in mature leaves lower than 37.40 mg/g were usually difficult to blossom. In addition, the maturity of tender leaves posed great influence on flowering. Specifically, tender leaves with a higher maturity contained higher carbon content and could easily blossom, which could be used as a new indicator to evaluate flower induction in off-season longan trees.After flower induction, some longan trees can successfully blossom and bear fruit, while others with similar tree body status can only sprout leaf buds. In order to investigate the main reason for these differences, in this study, off-season flowering and non-flowering longan trees were used as experimental materials to analyze the changes of carbon content in mature leaves, tender leaves, mature shoots, tender shoots and terminal buds of longan trees after flower induction by potassium chlorate. The result showed that carbon content played an important role in flowering process. Off-season longan trees with carbon content in mature leaves reached 50.93 mg/g could successfully blossom, but those with carbon content in mature leaves lower than 37.40 mg/g were usually difficult to blossom. In addition, the maturity of tender leaves posed great influence on flowering. Specifically, tender leaves with a higher maturity contained higher carbon content and could easily blossom, which could be used as a new indicator to evaluate flower induction in off-season longan trees.

关 键 词：LONGAN Flower induction FLOWERING CARBON 

分 类 号：S667.2[农业科学—果树学]