Which are the best features

Key features of Seedling Seed Orchard (1) - A seedling seed orchard is developed by selectively thinning a progeny trial which tests many different families of a species. - The progeny trial is assessedand analysedto find out which families and trees within families are growing best. - Inferior trees are removed in two or more selective thinnings, as the stand develops. - Inferior families may be completely removed –all trees cut down.

32p tam_xuan 02-03-2012 53 5   Download