中国蔬菜Issue(5)：89-96,8.DOI:10.19928/j.cnki.1000-6346.2025.4005
浅生定向槽坡面覆盖降温对淮山药生长和块茎膨大发育的影响
The Effect of Directional Trough Slope Coverage Lowering the Temperature on the Growth and Tuber Enlargement Development of Chinese Yam
摘要
Abstract
To explore cultivation techniques for shallow and directional high-efficiency production of Chinese yam(Dioscorea opposite Thunb.),this study established two treatments in plastic greenhouses:slope surface coverage with straw and thermal blankets(FG)versus non-coverage control(CK).The research investigated the spatiotemporal characteristics of soil temperature variation in directional trough and explored temperature effects on leaf physiological properties and tuber characteristics.Results demonstrated that during the tuber expansion stage,the FG treatment effectively reduced diurnal variation amplitude of maximum,minimum,and average soil temperatures in the directional trough.This coverage significantly increased chlorophyll content in aboveground leaves while decreasing proline and soluble protein levels.Additionally,it reduced malondialdehyde(MDA)content and antioxidant enzyme activities(POD,SOD,APX).Furthermore,the temperature-modulating coverage decreased tuber deformity rate and crude fiber content,while significantly enhancing protein,amylose,and total sugar contents in tubers.These findings suggest that straw and thermal blanket coverage effectively optimizes soil thermal conditions and improves both physiological metabolism and tuber quality in Chinese yam cultivation.关键词
淮山药/浅生定向槽/降温/生长发育/块茎膨大发育Key words
Chinese yam/directional trough/lower the temperature/growth/tuber enlargement development引用本文复制引用
刘德才,郭文琦,金林,殷剑美,王立,蒋璐,韩晓勇,张培通..浅生定向槽坡面覆盖降温对淮山药生长和块茎膨大发育的影响[J].中国蔬菜,2025,(5):89-96,8.基金项目
国家自然科学基金青年科学基金项目(32201912),国家现代农业产业技术体系专项(CARS-21) （32201912）
