Fruit development, pigmentation and biochemical properties of wax apple as affected by localized Application of GA3 under field conditions

Brazilian Archives of Biology and Technology

Mohammad Moneruzzaman Khandaker¹  Amru Nasrulhaq Boyce¹  Normaniza Osman¹  Faruq Golam¹  M. Motior Rahman¹  M. Sofian-azirun¹ 

[1] ,University of Malaya Faculty of Science Institute of Biological SciencesKuala Lumpur,Malaysia

关键词: Fruit development;    pigmentation;    quality;    GA3;    wax apple;   

DOI  :  10.1590/S1516-89132013000100002

来源: SciELO

【 摘 要 】

This study investigated the effects of gibberellin (GA3) on the fruit development, pigmentation and biochemical properties of wax apple. The wax apple trees were rubbing treated with 0, 20, 50 and 100 mgGA3/l under field conditions. The localized application (rubbing) of 50 mg GA3/l significantly increased the fruit set, fruit length and diameter, color development, weight and yieldcompared to the control. In addition, GA3 treatments significantly reduced the fruit drop. With regard to the fruit quality, 50 mg/l GA3 treatment increased the juice content, K+, TSS, total sugar and sugar acid ratio of wax apple fruits. In addition, higher vitamin C, phenol, flavonoid, anthocyanin, carotene content, PAL and antioxidant activities were recorded in the treated fruits. There was a positive correlation between the peel colour and TSS content and between the PAL activity and anthocyanin formation in the GA3-treated fruit. It was concluded that rubbing with 50 mg/L GA3 at inflorescence developing point of phloem once a week from the tiny inflorescence bud until the flower opening resulted in better yield and quality of wax apple fruits and could be an effective technique to safe the environment from excessive spray.

【 授权许可】

CC BY-NC   
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