茶园间作高杆绿肥“茶肥1号”不同刈割处理对茶树光合日变化的影响  

Tea-plant intercropping for high stem Green Manure “Chafei No.1” with different cutting treatment Effects of Daily Changes in Photosynthesis of Tea Tree

作　　者：傅海平[1] 周品谦 王沅江[1] 包强[1] 谢念祠 FU Hai-ping;ZHOU Pin-qian;WANG Yuan-jiang;BAO Qiang;XIE Nian-ci(Tea Research Institute of Hunan Academy of Agricultural Sciences, Changsha 410125, China)

机构地区：[1]湖南省农业科学院茶叶研究所,湖南长沙410125

出　　处：《茶叶通讯》2018年第1期14-19,共6页Journal of Tea Communication

基　　金：国家重点研发计划(2016YFD0200900);湖南省财政预算农业2017耕地地力提升项目

摘　　要：为探讨茶园间作高杆绿肥对茶树光合特征的影响,采用Li-6400便携式光合仪对茶园间作茶肥1号进行不同刈割处理后茶树光合的日变化的影响进行了研究。试验设6个处理:CK(不间种处理)、D1(不刈割处理)、D2(刈割与不刈割为1∶1)、D3(不刈割与刈割为1∶2)、D4(不刈割与刈割处理为1∶3)及D5(全部进行刈割)。结果表明,D1、D2、D3、和D4处理茶树叶片净光合速率呈单峰曲线,而对照CK和D5茶树叶片净光合速率呈双峰曲线,有明显的"午休"现象。绿肥的不同刈割处理下茶树叶片净光合总量随遮光度的增加而降低。因此,适度调控光照强度,有利于茶树净光合速率的提高,这是促进茶树生长的重要措施。To explore the effect of high-till green manure on the photosynthetic characteristics of tea plants, a Li-6400 portable photosynthesis instrument was used to study the effects of different cutting treatments on the daily changes of photosynthesis of tea plantation. The experiment consists of six treatments： CK（without seed treatment）, D1（without cutting treatment）, D2（castration with non-castration of 1 ∶ 1）, and D3（without cutting and castration of 1 ∶ 2）. D4（without 1 ∶ 3 castration and castration） and D5（all castrated）. The results showed that the net photosynthetic rate of D1, D2, D3, and D4 treatment tea leaves showed a single peak curve, while the net photosynthetic rate of control CK and D5 tea leaves showed a double peak curve, there was a clear＂midday break＂phenomenon. The total net photosynthetic content of tea leaves decreased with the increase of shading degree in different treatments of green manure. Therefore, moderate regulation of light intensity is beneficial to the improvement of net photosynthesis rate of tea tree, which is an important measure to promote the growth of tea plants.

关 键 词：茶树 间种绿肥 刈割处理 光合日变化 茶肥1号 

分 类 号：S571.1[农业科学—茶叶生产加工]