Year: 2018
Type: conference-paper
Abstract: Using the three-year-old 'Britewell' blueberry as experiment material, this research studied the mature period of blueberry on different fruit thinning treatments (20%, 40% and 60% thinning ratio per panicle).The fruit weight, size, firmness, soluble solids content, moisture content, anthocyanin content, ascorbic acid content and titratable acid content were determined.The result showed that asfruit thinning degree increasing, the single fruit weight, size and ascorbic acid content of blueberry increased.Soluble solids content of 60% thinning treatment fruits increased by 9.52% compared with that of control.Anthocyanin contents in fruit treated with 20%, 40% and 60% thinning degrees were increased by 17.13%, 2.29% and 20.18% respectively compared with that of control.Meanwhile, the maturity rate per panicle was significantly improved.Blueberry is rich in nutrients, and is designated as one of the five healthy human foods [1][2][3] .There are some problems on fresh blueberry fruit production, such as the dispersed mature period, varying grain size and uneven coloring, which greatly affected the production efficiency of blueberries.Improving the quality of fruit has become one of the main objectives of blueberry research.Fruit thinning is one of the important means to improve the quality of fruit, which could increase the fruit volume and fruit setting rate, promote coloring and maturity, reduce the rotting rate [4] .Studies concerning fruit thinning has been reported on grape [5] , plum [6] and apple [7] , etc.However, there is limited study focusing on blueberry thinning [4] .In this experiment, 'Brightwell' blueberry was used as materials to study the effects of fruit thinning on fruit quality and maturity， which contributes to determine the optimal number of fruit thinning for blueberry cultivation.This study is aim to provide reference for the development of blueberry cultivation technology, explore a new way that panicle becomes the unit of blueberry picking and selling. Materials and methods Blueberry materialsThe experiment was carried out in blueberry base of Chengdu, Pujiang.The material was three-year-old blueberry cv.'Britewell'.The test panicles were listed and the fruit numbers were counted.Thinned the marked panicles before the fruits entered the enlargement period (About 30 d after anthesis).The diseases fruits, infested fruits and deformed fruits were thinned.The other managements were the same.The experiment set up 3 different thinning levels, 20%, 40% and 60% per single panicle.The control is the fruit without thinning.Each treatment was repeated for 3 times.
Authors: Ruohan Ou, Yanping Fan, Yanan Wang, Jing Yang, Xun Wang
Institution: Sichuan Agricultural University
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: hybrid
OpenAlex ID: W2791720828