PENGARUH PENGGUNAAN PACLOBUTRAZOL, KNO3 DAN ETEFON PADA PEMACUAN PEMBUNGAAN TANAMAN MANGGIS (Garcinia mangostana L.)

JURNAL AGROTROPIKA Pub Date : 2020-10-24 DOI:10.23960/JA.V19I2.4545

N. Syafitri, Agus Karyanto, Rugayah Rugayah, Setyo Widagdo

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引用次数: 1

Abstract

Mangosteen (Garcinia mangostana L.) is a tropical plant that bears seasonal fruit and is one of Indonesia's leading export commodity. Mangosteen production in Indonesia is still low and not continuous, because there are several factors that influence it. One of them is the character of biennial bearing in mangosteen one year produce high fruit load followed by a next year of very low production. Therefore it is necessary to induce off season mangosteen flowering. This study aims to determine: (1) the effect of Paklobutrazol on the flowering of mangosteen plants, (2) the effect of adding KNO3 and Etefon on the acceleration of mangosteen flowering. This research was conducted in Mulangmaya Village, Kota Agung Timur District, Tanggamus, Lampung. Regency at an altitude of 250 m above sea level from September 2018 to April 2019. This research used a Randomized Block Design (RBD) with a single factor consisting of 3 treatments, namely P1 ( manure 10 kg/plant + NPK Nitrophonska 1 kg/plant, P2 (Paclobutrazol 2 ml/l + KNO3 20 g/l + manure 10 kg/plant + NPK Nitrophonska 1 kg/plant), and P3 (Paclobutrazol 2 ml/l + Etefon 40 ml/l + manure 10 kg/plant + NPK Nitrophonska 1 kg/plant). The data obtained were analyzed by analysis of variance and the mean separation was carried out by orthogonal contrast test at the 5% significance level. The results showed that the treatment of P2 (Paclobutrazol 2 ml/l + KNO3 20 g/l + manure 10 kg/plant + NPK Nitrophonska 1 kg/plant) on mangosteen plants was able to spur flowering faster with a difference of 12 days (8.70% ), and increased the total number of fruits per plant by a difference of 41 fruit (38.80%). The P3 treatment (Paclobutrazol 2 ml/l + Etefon 40 ml/l + manure 10 kg/plant + NPK Nitrophonska 1 kg/plant), unexpectedly causing significant leaf drop 3 days after Ethephon spray, and new leaves were formed a month later. Keywords : Ethephon, KNO3, Paclobutrazol, and mangosteen flowering

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山竹(Garcinia mangostana L.)是一种热带植物，具有季节性果实，是印度尼西亚主要的出口商品之一。印度尼西亚的山竹产量仍然很低，而且不是连续的，因为有几个因素影响它。山竹的二年生结实特点之一是，一年产量高，次年产量极低。因此，有必要诱导山竹的淡季开花。本研究旨在确定:(1)Paklobutrazol对山竹植物开花的影响;(2)添加KNO3和Etefon对山竹植物加速开花的影响。这项研究是在南榜唐加木斯哥打阿贡帖木儿区Mulangmaya村进行的。从2018年9月到2019年4月，摄政在海拔250米的地方。本研究采用随机区组设计(RBD)，单因素试验设3个处理，即P1(粪肥10 kg/株+硝芳氮磷钾1 kg/株)、P2(多效唑2 ml/l + KNO3 20 g/l +粪肥10 kg/株+硝芳氮磷钾1 kg/株)和P3(多效唑2 ml/l +铁氟40 ml/l +粪肥10 kg/株+硝芳氮磷钾1 kg/株)。所得资料进行方差分析，均值分离采用5%显著性水平的正交对比检验。结果表明，施用P2(多效唑2 ml/l + KNO3 20 g/l +肥料10 kg/株+氮磷钾硝峰斯卡1 kg/株)能使山竹植株更快开花(差异达12 d)，单株总果数差异达41个(差异达38.80%)。P3处理(多效唑2 ml/l +乙特丰40 ml/l +有机肥10 kg/株+氮磷钾硝芳斯卡1 kg/株)，喷乙特利后3 d出现明显落叶现象，1个月后形成新叶。关键词:乙烯利，KNO3，多效唑，山竹开花

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JURNAL AGROTROPIKA

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