Abstract
Pruning coffee plants is intended to stimulate generative growth that increases productivity to reach optimal. Plant Growth Regulator (PGR) makes it possible to exploit the production potential of plants. Pruning management, combined with the PGR in coffee plants, is expected to improve flowering and berry growth. The research was conducted for 7 mo from October 2017 to April 2018 at Gunung Gede, Bogor, West Java, Indonesia. A split–plot design with two treatment factors was used in this research. Pruning was placed as the main plot consisting of two levels, namely without (P0) and with pruning (P1). The PGR application was placed as a subplot, consisting of three dosages, namely without PGR (Z0), and concentrations of 0.3 mL L–1 (Z1) and 0.4 mL L–1 (Z2). The results showed, the pruning treatment significantly influenced microclimate, number of branches, B0, B1 and B2, number of berry sets, and berries. Pruning treatment had a very significant effect on microclimate, plant height, number of branches, number of coffee fruits, yields crops–1, and productivity. Interaction both significantly affected plant height and B0. The best dosage had not yet been found.
Highlights
Indonesia is the fourth world coffee exporter after Brazil, Colombia, and Vietnam [1]
Pruning is useful for breaking the life cycle of pests and diseases, forming a balanced plant canopy between branches, leaves, and fruit production, preventing fruit density, and shooting death
The experiment was conducted for 7 mo from October 2017 to April 2018 at Gunung Gede, Bogor, West Java, Indonesia Teaching Farm
Summary
Indonesia is the fourth world coffee exporter after Brazil, Colombia, and Vietnam [1]. It is shown by the side product, among others by solid waste, namely husks and pulp [5,6,7]. In order to become the largest coffee exporter, Indonesia must increase its coffee yield by developing some technologies. The availability of technologies, such as pruning and plant growth regulators are important. Pruning activities are very important so that coffee plants remain productive continuously [8]. Trimming remnants can be used for soil mulch. Pruning of coffee plants is intended to stimulate generative growth, so that productivity is more optimal and continuous throughout the year
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