Evaluation on eco-adptability of two chayote cultivars in south-subtropi-cal area

XIA Zaixing; XU Wenguo; LI Xuemei; ZHAO Juan; CHEN Zhixiong; LUO Huaiyu; XIAN Yanxiang; CHEN Yixiang

doi:10.16861/j.cnki.zggc.2024.0750

Abstract：To provide a theoretical basis for high-yield and high-quality cultivation of chayote,the main cultivars of green chayote and white chayote in western Yunnan were planted with equal row spacing under two different cultivation meth-ods:Facility cultivation and field cultivation.The agronomic traits and yield characteristics of chayote were investigated,and the main functional nutrients of chayote vine were analyzed.The results showed that the comprehensive effects of cul-tivars,cultivation methods and seasons had extremely significant effects on the growth and yield of chayote.In summer and autumn,chayote plants exhibited vigorous growth,increased branching,and a shorter harvesting period,with the yield of chayote vine from both cultivars being significantly higher than in spring and winter.Under facility cultivation,the yield of chayote vine for both cultivars across different seasons was significantly higher than field cultivation,with an-nual total yields increasing by 34.61％and 22.33％,respectively.Among the two cultivars,green chayote demonstrated su-perior plant growth and yield potential compared to white chayote.No significant difference was observed in the content of polysaccharides,total phenols,and total flavonoids in chayote vine among different cultivars,cultivation methods,or seasons.However,the water content of chayote vine was significantly influenced by seasonal changes,with both cultivars showing the highest water content in summer,indicating similar eating quality.Therefore,cultivating these two chayote cultivars in the south subtropical region can enable year-round production and staggered market supply of chayote vine.The optimal combination identified in this study is facility cultivation of green chayote.