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草品种提纯复壮
释义
草品种提纯复壮
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农学
草品种提纯复壮
释
purification and rejuvenation of grass varieties
草品种提纯复壮
采用适当的选种措施,结合除杂去劣,选择保留符合本品种原有典型性状的单株,并采用良好的栽培方法逐步扩大繁殖其种子,使种子由杂转纯,由退化复壮,以获得相对纯的、生活力强的、无混杂退化的种子,用以替换已混杂退化的种子,使退化的草品种恢复其原来的生产能力、优良品质和抗性水平的方法。
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water repellent
water requirement
water rescue
water reserves change
water resistant plants
water resource fee
water resource fee levy and management
water resource fee levy standard
water resource management
water resource management system
water resource monitoring
water resource ownership
water resource pricing
water resource protection planning
water resource remote sensing
water resources
water resources accounting
water resources allocation
water resources allocation scheming
Water Resources and Hydropower Engineering
water resources assessment
water resources carrying capacity
Water Resources Development and Management
water resources development and utilization
water resources development and utilization management
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