Books by Donald L Copes

17 books found

Selection and propagation of highly graft-compatible Douglas-fir rootstocks, a case history

19812 ed.

Rooting Sitka spruce from southeast Alaska

19872 ed.

Effects of leader topping and branch pruning on efficiency of Douglas-fir cone harvesting with a tree shaker

19852 ed.

Influence of cambial contact length on graft survival and leader elongation in Douglas-fir

19671 ed.

Effects of water suspension and wet-dry cycling on fertility of Douglas-fir pollen

20001 ed.

Tree shaking machine aids cone collection in a Douglas-fir seed orchard

19831 ed.

Bark scoring problem grafts in five douglas-fir seed orchards

19891 ed.

Effects of leader topping and branch pruning on efficiency of Douglas-fir cone harvesting with a tree shaker

19851 ed.

A simple method for detecting incompatibility in 2-year-old grafts of Douglas-fir

19671 ed.

Graft incompatibility in Pinus contorta

19751 ed.

Effect of graft type on 6-month scion survival of field grown Douglas-fir grafts

19691 ed.

Effect of month of grafting on douglas-fir graft compatibility

19731 ed.

Effect of date of grafting on survival in Douglas-fir

19701 ed.

Interstock trials with grafted coastal Douglas-fir

19711 ed.

Tree shaking machine aids cone collection in a Douglas-fir seed orchard

19831 ed.

Rooting Sitka spruce from southeast Alaska

19871 ed.

Selection and propagation of highly graft-compatible Douglas-fir rootstocks, a case history

19811 ed.