Yazar
Thomas Ledig
7 cilt bulundu.
Cilt sonuçları
The calculation of selection differential and selection intensity to predict gain in a tree improvement program for plantation-grown Honduras pine in Puerto Rico
F. Thomas Ledig · Southern Forest Experiment Station
Sayfa sayısı yok · 1981
Tree planting / Pinus caribaea
West Coast tree improvement programs
F. Thomas Ledig · U.S. Dept. of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station
Sayfa sayısı yok · 1981
Cost effectiveness / Ponderosa pine / Forest genetics / Breeding / Douglas fir
World directory of forest geneticists and tree breeders
F. Thomas Ledig, David B. Neale · U.S. Dept. of Agriculture, Forest Service, Pacific Southwest Research Station
185 sayfa · 1998
Trees / Directories / Breeding / Forest genetics / Foresters