Exogenous Application of Calcium, α-Naphthaleneacetic Acid and 1Methylcyclopropene Improved Fruit Growth and Oil Yield of Oil Palm (Elaeis guineensis Jacq.) Grown on Ultisol

AGRIVITA Journal of Agricultural Science Pub Date : 2024-01-10 DOI:10.17503/agrivita.v46i1.4115

D. Sopandie, Agus Nur Hidayah, S. Yahya

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Abstract

Soil acidity is one of the main factors limiting the growth and sustainable production of oil palm in Indonesia. The aim of this study was to evaluate the effect of various exogenous compounds on improving fruit growth and oil yield of palm oil grown on Ultisol. The experiment employed three treatments which were arranged in a Randomized Complete Block Design (RCBD) with three replications. The treatments were: 1-MCP (0, 100, 200, and 300 ppm), CaCl2 (0 and 50 ppm) and NAA (0 and 200 ppm). Application of Ca2+, NAA and 1-MCP either single or in combination improved fruit growth and oil yield by increasing almost all variables, except the number of bunches, bunch weight and fruit set. The 100 ppm 1-MCP + 50 ppm Ca2+ + 200 ppm NAA treatments showed the highest oil-to-dry mesocarp content. To get the highest oil to bunch (OB), the combination of 100 ppm 1-MCP + 200 ppm NAA; 50 ppm Ca2+ + 200 ppm NAA, and a single treatment of 50 ppm Ca2+ were very promising to be utilized.

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外源施用钙、α-萘乙酸和 1Methylcyclopropene 可改善 Ultisol 上种植的油棕榈果实生长和产油量

土壤酸度是限制印度尼西亚油棕榈生长和可持续生产的主要因素之一。本研究的目的是评估各种外源化合物对改善 Ultisol 上种植的棕榈油果实生长和产油量的影响。实验采用了三种处理方法，以随机完全区组设计（RCBD）进行排列，三次重复。处理为1-MCP （0、100、200 和 300 ppm）、CaCl2（0 和 50 ppm）和 NAA（0 和 200 ppm）。单施或混合施用 Ca2+、NAA 和 1-MCP 都能改善果实的生长和产油量，除了果穗数、果串重和坐果率外，几乎所有变量都有所提高。100 ppm 1-MCP + 50 ppm Ca2+ + 200 ppm NAA 处理的干中果皮含油量最高。为了获得最高的果穗含油量（OB），100 ppm 1-MCP + 200 ppm NAA、50 ppm Ca2+ + 200 ppm NAA 和 50 ppm Ca2+ 的单一处理组合都很有前景。

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AGRIVITA Journal of Agricultural Science

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