Flowering induction and formation of salak (Salacca sumaterana Becc) fruit with potassium and boron fertilization

Abstract

Salak Sidimpuan is one of the superior commodities of Padang Sidimpuan that taste sweet, sour and make it different from Pondoh and Bali. Physiological conditions will greatly affect the growth and development plant especially the phase of flowering and fruit formation. Other factors that affect the flowering phase and fruit formation are nutritional status and relative water content in the plant. The purposes of study to get the best concentration of Potassium and Boron on fruit formation and Sidimpuan zalacca production off season. This research was conducted at Palopat Maria village, Padang Sidimpuan City. This study was conducted from July 2017 to March 2018. The experiment was conducted Split Plot Design with three replications. The main factor is the potassium fertilizer i.e. without potassium, 20 g and 40 g / tree potassium. The subplot is the B fertilizer dosage i.e. without fertilizer B, 1000, 2000, 3000 and 4000 ppm/tree. The results showed that Sidimpuan Salak Plant was a hermaphrodite flowering plant, carried out its own pollination and the time it took from flower up fruit ready to harvest about 5.5 to 6 months. The highest number of fruit Bunches (8.74 bunches) was obtained at 20 g / plant while in B 3000 ppm / tree was 9:01 bunches.