tailieunhanh - Báo cáo nghiên cứu nông nghiệp " Seed-Producing Stands "

There are many methods to obtain seed for planting •Meeting immediate needs –Seed from individually good phenotypes –Seed from seed stands/seed production areas •Meeting long-term needs –Seed from seed orchards •These seed sources are different in genetic quality | Seed-Producing Stands There are many methods to obtain seed for planting Meeting immediate needs - Seed from individually good phenotypes - Seed from seed stands seed production areas Meeting long-term needs - Seed from seed orchards These seed sources are different in genetic quality Why not just collect seed out of plantations We may not know the genetic origin of the plantation - it could be inferior or the genetic base too narrow. There has been no selective thinning to remove inferior trees in the plantation. The inferior trees contribute their pollen to the other better trees in the plantation lowering seed .

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