春茶产量与修剪留叶技术的关系

CORRELATION BETWEEN YIELD OF SPRING TEA AND TECHNIQUES OF PRUNING AND KEEPING LEAVES

以复壮后的四川中叶群体种茶树为材料,研究了轻修剪的时间、周期和留叶时期对茶叶产量、茶树生长的效应.结果表明:春茶、夏茶后轻修剪的春茶产量,分别比秋茶后轻修剪提高46.54%、39.25%,春梢萌发时间提早7～10天;隔一年、二年、三年轻修剪,其不修剪年份的春茶产量比年年轻修剪提高37.33～24·13%;第2轮留一真叶,春茶产量比第1～2轮留一真叶提高23.00%.对茶树生长情况也作了分析.

Vsed the tea variety of Sichuan Qunti Zhong after restoration as material, the effects of light pruning time, period and keeping leaves time on yield and growth of tea bush were studied. The results showed that the yield of spring tea,sprouting time of spring tea tip by light-pruning after spring tea and summer tea were increased by 46. 54%,39. 25%and advanced 7 -10 days than that of light-pruning after autumn tea separately;the yields of spring tea in unpinning years after once light -pruning for two years,three years,and four years were increased by 37. 33%～24.13% than that of light-pruning every year; the yields of spring tea which a leaf was kept when harvesting the second round leaf were increased by 23. 00% than that of kept both a leaf when harvesting 1st-2nd round leaves. The effect of pruning technoloy to growth of tea bush is dis-cuesed too in this paper.