Effects of different deficit irrigation on sugar accumulation of pineapple during development

2nd International Conference on Materials Science, Energy Technology and Environmental Engineering

材料科学;能源学;生态环境科学

Feng, Haiyan^1 ; Du, Liqing^1 ; Liu, Shenghui^1 ; Zhang, Xiumei^1

Key Laboratory of Tropical Fruit Biology, Ministry of Agriculture, South Subtropical Crop Research Institute, Chinese Academy of Tropical Agricultural Science (CATAS), Zhanjiang, Guangdong, China^1

关键词: Acid invertase;    Deficit irrigation;    Sucrose accumulation;    Sucrose synthase;    Sugar accumulation;    Synthases;    Treatment group;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/81/1/012037/pdf
DOI  :  10.1088/1755-1315/81/1/012037

来源: IOP

【 摘 要 】

The potted pineapple cultivar 'Comte de Paris' was used to study the influence of deficit irrigation on fruit sugar accumulation in greenhouse during the fruit enlargement period. The study included a control (normal irrigation) and two treatment groups, moderate deficit (50% of the control irrigation) and severe deficit (25% of the control irrigation). The results indicated that the deficit irrigation significantly decreased the sucrose accumulation. The sucrose content in the fruits of moderate deficit irrigation was the lowest. During the mature period, the deficit irrigation decreased the sucrose phosophate synthase activity(SPS) an increased the sucrose synthase (SS) and neutral invertase (NI). The moderate deficit irrigation significantly improved the acid invertase activity(AI). However, it was inhibited by the severe deficit irrigation. In general, the moderate treatment reduced the SPS activity and enhanced the NI and AI activities, while the severe treatment decreased the SPS and AI activities.