Article | . 2018 Vol. 36, Issue. 2
Impact of Within-row Plant Spacing and Fixed Fruit Setting on Yield and Quality of Rockmelon Fruit Cultivated by Drip Irrigation in a Greenhouse

Department of Biotechnology, Faculty of Applied Sciences, UCSI University1
Department of Aquaculture, Faculty of Agriculture, Universiti Putra Malaysia2
Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia3

2018.. 172:182


Experiments were conducted in a ventilated greenhouse located in a commercial farm (2°56'N, 101º54'E) at Broga, Malaysia from 2014 to 2015. The objective of this study was to evaluate the interaction between within-row plant spacing and fruit-set position on the yield and quality of ‘Glamour’ rockmelon fruit. Rockmelon was grown at 1.57 m between rows with 0.15 m, 0.30 m, and 0.60 m of within-row plant spacing. The plants were fixed to set fruit at T1 (one fruit, 1-7 lateral branches), T2 (one fruit, 8-14 lateral branches), T3 (two fruits, 1-7 lateral branches), and T4 (two fruits, 8-14 lateral branches). As within-row plant spacing decreased from 0.30 m to 0.15 m, yield per ha was increased by 58.1%, and a 3.7-fold increase in yield was seen from 0.60-m to 0.15-m spacing. Total soluble solids (11.96°Brix) and total carbohydrate content (86.60 g GE 100 g DW) were highest at a plant spacing of 0.60 m. Our results demonstrated that the interaction between 0.30-m within-row plant spacing with two fruits set at 8-14 lateral branches showed the most commercially viable outcome in fresh fruit weight as these conditions produced two fruits with an average fruit weight of 2.20 kg per fruit.

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