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选用 5个陆地棉品种的种子搭乘我国第十七颗返回式卫星 ,在太空飞行 1 5天。考察了各种农艺性状的变异情况
Selects five varieties of land cotton seeds to take the seventeenth of China’s return satellites, spacecraft in 15 days. Varieties of agronomic traits were examined