SOURCE-SINK RELATIONSHIPS AFFECTING FRUIT DEVELOPMENT AND FRUIT QUALITY IN DURIAN, DURIO ZIBETHINUS MURR.

S. Salakpetch, S. Chandraparnik, H. Hiranpradit, U. Punnachit
Growers usually retain a number of durian fruit on the tree in correspondence with age, tree size, and tree vigour. Over and under retention can lead to fruits of variable qualities and affected to, growers income.

The experiment was to explore the response of durian fruit development to source-sink relationship. A combination of glucose+humic acid, paclobutrazol, and foliar fertilizer (0–52–34) were sprayed to durian trees commencing week 3 to week 12 after anthesis at 7-day-interval. Glucose in combination with humic acid was found to be a potential source giving a total harvestable yield of approximately 54% over the control. Similar results (29 and 24 %) were obtained when foliar fertilizer, and paclobutrazol were applied. Increases in proportion of marketable yield was of special interest. Combination of glucose+humic acid, and paclobutrazol at 250 and 500 ppm were 90.0, 82.3, and 70.7 %, respectively, while that of control was 68.9 %. The reason to select these chemicals and time of application were discussed.

Salakpetch, S., Chandraparnik, S., Hiranpradit, H. and Punnachit, U. (1992). SOURCE-SINK RELATIONSHIPS AFFECTING FRUIT DEVELOPMENT AND FRUIT QUALITY IN DURIAN, DURIO ZIBETHINUS MURR.. Acta Hortic. 321, 691-694
DOI: 10.17660/ActaHortic.1992.321.85
https://doi.org/10.17660/ActaHortic.1992.321.85

Acta Horticulturae