Daniel Gerardo Cayón Salinas, Gustavo Adolfo Ligarreto Moreno, Stanislav Magnitskiy, Gustavo Rosero, Omaira Leguizamón
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引用次数: 1
摘要
OxG杂交束含有比正常果实（NF）更多的单性结实果实（PF），并且由于开花不同步或授粉不足而存在发育和成熟问题。本研究的目的是比较α-萘乙酸（NAA）和赤霉酸（GA3）在“Coari x La Mé”油棕榈杂交种中PF和NF的诱导和发育、脂肪酸谱（FAP）和油势的影响。NAA和GA3诱导果实单性结实，但不改变中果皮油的FAP。商业剂量的花粉（0.9克滑石粉+0.1克花粉）可增加束重（20.8公斤），降低束中PF的百分比（65.4%）。诱导束中PF形成的最有效激素剂量是NAA 300和600 mg L-1。GA3单独使用或与NAA混合使用增加了PF的百分比，但没有增加BW，表明GA3对BW没有协同作用。NAA的应用代表了补充OxG杂交种辅助授粉以提高丛产量和油产量的替代方案。
Application of naphthalene acetic acid and gibberellic acid favours fruit induction and development in oil palm hybrid (Elaeis oleifera x Elaeis guineensis)
Summary The OxG hybrid bunches contain more parthenocarpic fruits (PF) than normal fruits (NF) and present problems of development and ripening due to either an asynchronous opening of flowers or insufficient pollination. The objective of this study was to compare the effect of α-naphthaleneacetic acid (NAA) and gibberellic acid (GA3) in the induction and development of PF and NF, the fatty acid profile (FAP), and the oil potential in the ‘Coari x La Mé’ oil palm hybrid. NAA and GA3 induced parthenocarpy in the fruits and did not alter the FAP of the mesocarp oil. The commercial dose of pollen (0.9 g talc + 0.1 g pollen) resulted in increased bunch weight (BW) (20.8 kg) and lower percentage of PF in the bunch (65.4%). The most effective hormonal doses to induce the formation of PF in the bunch were NAA 300 and 600 mg L-1. GA3 alone or in mixture with NAA increased the percentage of PF but did not increase the BW, indicating that GA3 had no synergistic effect on BW. The NAA applications represent alternatives to complement assisted pollination of OxG hybrids to increase bunch production and oil yield.
期刊介绍：
With a focus on the tropical and sub-tropical regions of the world, Experimental Agriculture publishes the results of original research on field, plantation and herbage crops grown for food or feed, or for industrial purposes, and on farming systems, including livestock and people. It reports experimental work designed to explain how crops respond to the environment in biological and physical terms, and on the social and economic issues that may influence the uptake of the results of research by policy makers and farmers, including the role of institutions and partnerships in delivering impact. The journal also publishes accounts and critical discussions of new quantitative and qualitative methods in agricultural and ecosystems research, and of contemporary issues arising in countries where agricultural production needs to develop rapidly. There is a regular book review section and occasional, often invited, reviews of research.
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