Abstract:

To comprehensively evaluate the adaptability, yield and quality characteristics of 14 introduced tea plant cultivars in Guiyang, the survival rate, phenological period, yield and quality of the cultivars were analyzed with ‘Fuding Dabaicha’ as the control (CK). The results showed that among the 14 tested tea plant cultivars, ‘Qingxin1’ and ‘Baojinghuangjincha1’ had poor adaptability and the planting survival rate was significantly lower than that of CK and other cultivars. The phenological period of 6 cultivars, such as ‘Chuannonghuangyazao’, ‘Zhongxuan10’, and ‘Zhenong901’, were earlier than that of CK, among which ‘Chuannonghuangyazao’ with the earliest phenological period had the one bud and one leaf stage 4-15 days earlier than that of CK. The phenological period of ‘Zhongcha112’, ‘Chuanmu28’ and ‘Zhenong902’ were similar to that of CK. The phenological period of 5 cultivars, such as ‘Qingxin1’, ‘TRI25’, and ‘Zhenong702’, were later than that of CK, among which ‘Qingxin1’ with the latest phenological period had the one bud and one leaf stage 3-12 days later than that of CK. In terms of yield, the average yield of ‘Mabianlv1’ and ‘Chuanmu28’ were the highest, which increased by about 52% and 39% compared with that of CK, respectively. The average yield of ‘Qingxin1’ was significantly lower than that of CK (about 41% lower). There was no significant difference of yield between other tea plant cultivars and CK. Sensory evaluation showed that the baked green tea of ‘TRI23’, ‘Zhenong902’, ‘Mabianlv1’, ‘Chuanmu28’ and ‘Baojinghuangjincha1’ had a special or obvious floral fragrance and a heavy and mellow taste, which were easier to process high-quality green tea. In summary, according to the comprehensive performance of the 14 introduced tea plant cultivars in the experimental sites in Guiyang of Guizhou Province, ‘Mabianlv1’, ‘Chuanmu28’, ‘Zhenong902’, ‘TRI23’and ‘Yusun’ have a good overall performance in planting. ‘Zhongxuan10’, ‘Zhenong701’, ‘Zhenong901’, ‘Chuannonghuangyazao’, ‘Zhenong702’, ‘TRI25’ and ‘Zhongcha112’ have a moderate performance. Although ‘Qingxin1’ and ‘Baojinghuangjincha1’ have poor adaptability, their tea making-quality is excellent.

Key words: tea plant cultivar, adaptability, phenological period, yield, quality