茶叶科学2016，Vol.36Issue(5)：452-460,9.
白鸡冠半同胞系（F1代）叶片主要性状及光合特征分析
Comparison of Leaf Functional and Photosynthetic Characteristics in Baijiguan Half-sib Teas
摘要
Abstract
With 25 tea strains as experimental material (14 albino tea strains and 14 green tea strains), the spring shoot biomass, growth stages, leaf functional and photosynthetic characteristics of the leaves were monitored, compares with both between difference new tea strains. The results showed that: comparing with female parents (Baijiguan), the spring shoot biomass were increased by 25.0%-106.25% (except 15 and 24) and the growth stages were advanced (early middle growth was 84%) in 25 new tea strains. The leaf area (LA) and specific leaf area (SLA) were significantly higher in albino tea strains than Baijiguan, but the leaf dry matter content (LDMC) had significant decrease, other indicators had no difference. The leaf area (LA) and photosynthetic pigments were significantly increased in green tea strains than in Baijiguan, other indicators were not pronounced. The average of LA and photosynthetic pigments in albino tea strains were significantly below the green tea strains, but the SLA, ratio of chlorophyll a and b (Chla/Chlb) and ratio of carotene and chlorophyll (Car/Chl) were significantly higher than the green tea strains, it may be one of the mechanisms of protecting the leaf from certain wavelengths light damage. Although the chlorophyll content of albino tea strains contains one half of (42.29%) that of the green tea strains, its photosynthetic characteristics indexes approach to that of the green tea strains. Only when the photosynthesis pigments content drops rapidly, the photosynthetic characteristics indexes then significantly decreases, which in the albino tea strains, the photosynthetic efficiency per unit chlorophyll keeps higher within the certain limits of chlorophyll content, and which may compensate the lower light harvest capacity due to Chl deficiency. However, studies of the causes for the differences has yet to be further discussed in physiological and molecular aspects.关键词
白鸡冠半同胞系/黄白化新品系/叶片功能性状/光合特征Key words
Baijiguan half-sib teas/new albino tea strain/leaf functional/leaf photosynthetic分类
农业科技引用本文复制引用
陈常颂,王峰,陈玉真,单睿阳,王秀萍,林郑和,钟秋生,陈志辉,余文权..白鸡冠半同胞系（F1代）叶片主要性状及光合特征分析[J].茶叶科学,2016,36(5):452-460,9.基金项目
国家茶叶产业技术体系（CARS-23）、省属公益类科研专项（2015R1101017-9）、福建省农业科学院茶叶科技创新团队、中国乌龙茶产业协同创新中心专项（闽教科〔2015〕75号）。 （）
