...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Acta Horticulturae >THE VARIABILITY OF THE SAGO PALM AND THE NEED AND POSSIBILITIES FOH ITS CONSERVATION
【24h】

THE VARIABILITY OF THE SAGO PALM AND THE NEED AND POSSIBILITIES FOH ITS CONSERVATION

机译：SAGO棕榈的变化及其保存的必要性和可能性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In the wild and in cultivation, sago palm (Metroxylon sagu Rottb.) is mostly propagated vegetatively through its suckers. Generative propagation occurs to a limited extent; there are strong indications of sago palm being largely an obligatory cross-pollinator. This opens the possibility of the existence of an endless amount of clonal varieties of sago palm, which is confirmed by the endless amount of different names for locally distinguished varieties in the areas where sago palm occurs naturally. Sago palm's great variability is now threatened by the decrease in area under natural and semi-natural sago forest in the centres of diversity (New Guinea, the Moluccas) and by the sole attention to'high-yielding, quickly-maturing varieties for plantationpurposes. A comprehensive plan is required for the conservation of the existing germplasm for future selection and breeding. The problems and uncertainties with in vitro and standing in-situ germplasm collections are such that gathering varieties from the wild and planting them in special regional germplasm gardens seems the only viable option. Issues of collecting and describing material are dealt with, including the evaluation of information from local informants. Centres of sago palm diversity seem to coincide with centres of language diversity. It is demonstrated, however, that differences in name cannot be attributed singly to differences in language. An extensive list is given of examples of locally distinguished varieties reported in literature, and of varieties encountered during the author's 1988-1990 research on sago in the Moluccas and during a two-month all-Indonesia study tour in 1992.
机译：在野外和栽培中，西米棕榈（Metroxylon sagu Rottb。）主要通过其抽油烟无营养地繁殖。生殖繁殖在一定程度上发生;有强烈的迹象表明，西米棕榈主要是强制性的异花授粉。这打开了无数西米棕榈无性系变种存在的可能性，这一点已被无花果自然存在的西米棕榈地区无数不同名称的本地特有品种所证实。西米棕榈的巨大变异性受到多样性中心（新几内亚，莫卢卡斯）天然和半天然西米森林下面积减少以及仅针对“高产，快速成熟的人工种植品种”的威胁。需要有一个全面的计划来保存现有种质，以备将来选择和繁殖。体外和原位种质收集的问题和不确定性使得从野外收集变种并将其种植在特殊的区域种质花园中似乎是唯一可行的选择。处理了收集和描述材料的问题，包括评估来自当地信息提供者的信息。西米棕榈多样性的中心似乎与语言多样性的中心一致。然而，事实证明，名称差异不能单独归因于语言差异。给出了广泛的清单，列出了文献中报道的本地杰出品种的例子，以及作者在1988-1990年对Moluccas中的西米进行研究以及在1992年进行的为期两个月的全印尼考察中遇到的品种。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号