ACCUMULATION CHARACTERISTICS OF FRUIT WEIGHT, DIAMETER AND MAIN NUTRIENT COMPOSITION INDICES IN GROWING 'BOYSENBERRY' FRUIT

Wenlong Wu, Xiaomin Wang, Huifang Zhao, Chunhong Zhang, Liang Fang, Lianfei Lu , Weilin Li
In this study, the dynamic accumulation characteristics of the fruit weight, fruit diameter, and nutrient composition indices including total sugar, total acid and vitamin C of blackberry (Rubus L. subgenus Rubus) ‘Boysenberry’ were investigated respectively. All the indices accumulated at the late stages of fruit development and exhibited an incomplete single S-shaped curve. Complete single S-shaped curves were uniformly observed for accumulation rate of fruit weight, total sugar and vitamin C, while total acid showed a horizontal double S-shaped curve and the average diameter an upward and basic symmetrical parabola trend. The accumula¬tion acceleration of fruit weight, total sugar and vitamin C exhibited an upward and asymmetrical parabola pattern, while the total acid and average diameter showed a horizontal single S-shaped curve and a straight line respectively. The growth models of the fruit parameters accurately fitted the blackberry growth patterns and provided reference for better understanding of blackberry development with the days after fruit-setting.
Wenlong Wu, , Xiaomin Wang, , Huifang Zhao, , Chunhong Zhang, , Liang Fang, , Lianfei Lu , and Weilin Li, (2012). ACCUMULATION CHARACTERISTICS OF FRUIT WEIGHT, DIAMETER AND MAIN NUTRIENT COMPOSITION INDICES IN GROWING 'BOYSENBERRY' FRUIT. Acta Hortic. 926, 533-540
DOI: 10.17660/ActaHortic.2012.926.75
https://doi.org/10.17660/ActaHortic.2012.926.75
matter accumulation, blackberry, fruit development
English

Acta Horticulturae