Changes in biochemical constituents and induction of early sprouting by triadimefon treatment in white yam(Dioscorea rotundata Poir.) tubers during storage

作     者：JALEEL Cheruth Abdul GOPI Ragupathi MANIVANNAN Paramasivam KISHOREKUMAR Ashok GOMATHINAYAGAM Muthiah PANNEERSELVAM Rajaram 

作者机构：Stress Physiology LabDepartment of BotanyAnnamalai UniversityAnnamalainagar 608 002Tamil NaduIndia 

出 版 物：《Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)》 (浙江大学学报（英文版）B辑（生物医学与生物技术）)

年 卷 期：2007年第8卷第4期

页      面：283-288页

核心收录：

学科分类：09[农学] 0902[农学-园艺学] 090202[农学-蔬菜学] 

主　　题：Biochemical constituents Enzyme activities Dioscorea rotundata Sprouting Storage Triadimefon (TDM) 

摘      要：The ability of triadimefon （TDM）, a triazolic fungicide, to alter the biochemical constituents and thereby minimizing the days required for sprouting in white yam （Dioscorea rotundata Poir.） tubers during storage under （30±2） ℃ in the dark, was studied. TDM at 20 mg/L was given to tubers by dipping the tubers in treatment solution containing 20 mg/L TDM on 10, 25 and 40 d after storage （DAS）. Starch, sugars, protein, amino acid contents as well as protease and a-amylase activities were estimated on 15, 30 and 45 DAS from two physiological regions viz., apical and basal regions of the tubers. In normal conditions （control） sprouting occurred on 70 to 80 DAS. The starch content decreased, while protein, amino acid, sugar contents and protease and a-amylase activities were increased due to TDM treatment and led to early sprouting.