crop varieties and germplasm resources
作物品种和种质资源
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The results showed that with the extension of improved varieties, the renewing rate of crop germplasm resources was accelerated, total number of older local varieties became less and less.
结果表明：随着优良品种的大量推广，作物种质资源更新速度加快，老的农家品种越来越少；
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