The wild germplasm of tropical crops is important material for developing tropical agriculture. The concept, limit and characteristics of wild germplasm were analyzed, and the advices of conservation were put forward as follows:a. strengthening conservation in primary environment; b. combined with provenance collection for promoting gene exchange; c. breeding excel-lent cultivars for reducing pressure of wild germplasm;d. wild germplasm would not be damaged during collection.% 热带作物野生种质资源是热带作物产业发展的物质基础。本文对热带作物野生种质资源的概念、范围、特点进行了分析和界定，对保护方法提出建议：加大原境保存力度，就近集中保存促进基因交流，良种培育推广生产从而降低野生资源的压力，收集工作不能破坏野生种质资源。
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