川西茶区五个栽培品种春梢伸育动态初探

STUDY ON THE SPRING SHOOT GROWTH DYNAMIC OF 5 VARIETIES IN WEST-SICHUAN TEA AREA

以川西茶区５个栽培品种为材料，调查分析了各品种春梢伸育的动态。结果表明，在川西海拔１０６０ｍ的地域条件下，各品种的春梢生育期和生育强度有明显的差异，福鼎大白茶仍具早萌、展叶快、可早采的优良性状，名优茶开采期比其余品种早６～１０天。５个品种的越冬芽从萌动到形成一芽一叶新梢需１９～２６天，活动积温１５０～２２０℃；形成一芽三叶新梢需３７～５３天，活动积温３３０～５１０℃。故高海拔茶园名优茶的开采期普遍较晚，应采取早萌高效的栽培技术措施，以便早采、多产名优茶原料。

The spring shoot growth dynamic was examined and studied with five cultivars in the west-Sichuan tea area. The result is that under the condition of and elevation of 1060 metres in west-Sichuan, every variety has significant difference in growth time and intensity of spring shoot. Fuding Dabai cha still has the early buddng, fast spreading and early plucking varietal characteristics. Famous tea begins to pluck 6 to 10 days earlier than the others. Statoblasts of these varieties need 19 to 26 days and accumulated temperature 150 to 220 degrees cntigrade, to form a bud with a leaf, while 37 to 53 days and 330 to 510 degrees centigrade to from a bud with 3 leaves. So famous tea in high elevations begins to pluck later commonly. Early budding and high efficient planting techniques should be taken to pluck famous tea materials more and earlier.