茶叶科学Issue(3)：261-267,7.
不同供钾水平对茶树幼苗叶片光合作用的影响
Effects of Different Potassium Level on Leaf Photosynthesis of Tea Seedling
摘要
Abstract
Vegetative propagated 10-month-old tea [Camellia sinensis (L.) O. Kuntze cv. Ruixiang] seedlings grown in pots were fertilized three times weekly for 24 weeks with nutrient solution containing 0, 100, 200, 600 or 2 000μmol/L potassium. The portable photosynthesis system (LI-6400) was used to determine leaf photosynthesis of tea. The result showed that K-deficient leaves showed decreased CO2 assimilation and stomatal conductance, water use efficiency but increased intercellular CO2 concentration. Result also showed that biomass, content of K and chlorophyll were decreased in K-deficient leaves. The tea seeding appeared potassium deficiency symptoms when fertilized with nutrient solution containing 0, 100 μmol/L potassium(K content of leave 6.63 mg/g, 6.85 mg/g).关键词
茶树/缺钾/光合作用/叶绿素Key words
tea plant/K deficiency/photosynthesis/chlorophyll分类
农业科技引用本文复制引用
林郑和,钟秋生,陈常颂,陈志辉,游小妹..不同供钾水平对茶树幼苗叶片光合作用的影响[J].茶叶科学,2013,(3):261-267,7.基金项目
福建省自然科学基金（2012J01098）、国家茶产业技术体系（nycytx-23）、福建省农科院科技创新团队重点项目 （）
