Oil palm seed distribution

T. Durand-Gasselin, B. Cochard
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引用次数: 9

Abstract

For a tropical plant, the oil palm commodity chain has the peculiarity of possessing a major seed production sector for reasons that are primarily genetic. This seed sector has numerous original aspects. Breeders are also propagators and usually also distribute their seeds. Oil palm seeds are semi-recalcitrant: they display pseudo-dormancy. Achieving seed germination is difficult and requires lengthy treatments and special installations. This restriction greatly influences seed distribution and the role of the different stakeholders in the commodity chain. It was only once it had been discovered how the "sh" gene functioned, which controls shell thickness, and when it became necessary to produce "tenera" seeds derived from exclusively "dura x pisifera" crosses, that a true seed market developed. In addition it is difficult to organize seed distribution to smallholders. This is partly due to difficulties that the profession, or a State-run organization, has in controlling middlemen networks, and partly to the absence of any protective systems (UPOV, plant breeder certificate, etc.) that generally oblige breeders to preserve and propagate parents in their own installations. In fact there are major inequalities in the access to seeds between agroindustry and smallholders. Another peculiarity of the oil palm seed market is the virtually total absence of guarantees for buyers: the quality of the research conducted by breeders, the seed production strategies necessary for transferring genetic progress, and the technical quality of production. The only guarantee today comes from the relations of confidence established year after year between breeders/distributors and growers. In this fields, research can lead to some proposals: molecular biology offers some interesting prospects for certifying seed quality and social science develop effective communication methods.
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油棕种子分布
作为一种热带植物,油棕商品链的特点是拥有一个主要的种子生产部门,主要原因是遗传。这个种子部门有许多原创性的方面。育种者也是传播者,通常也传播他们的种子。油棕种子是半顽固性的:它们表现出伪休眠状态。实现种子发芽是困难的,需要长时间的处理和特殊的装置。这一限制极大地影响了种子的分配和商品链中不同利益相关者的作用。只有当人们发现了控制壳厚的“sh”基因是如何起作用的,并且有必要生产完全由“硬脑膜与pisifera”杂交而来的“tenera”种子时,真正的种子市场才得以发展。此外,很难组织向小农分发种子。这部分是由于该行业或国营组织在控制中间商网络方面存在困难,部分是由于缺乏任何保护制度(UPOV,植物育种者证书等),这些制度通常迫使育种者在自己的设施中保存和繁殖亲本。事实上,在获得种子方面,农用工业和小农之间存在着很大的不平等。油棕种子市场的另一个特点是几乎完全没有对买家的保证:育种者进行的研究质量、转移遗传进展所需的种子生产策略以及生产的技术质量。今天唯一的保证来自育种者/分销商和种植者之间年复一年建立的信任关系。在这一领域,研究可以带来一些建议:分子生物学为种子质量认证提供了一些有趣的前景,社会科学开发了有效的交流方法。
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