Effects of crown-pruning on seed and pollen cone production in two lodgepole pine seed orchards in British Columbia
Michael Stoehr, Clint Hollefreund, Joe Webber, Clare Hewson, Steve RossТом:
10
Мова:
english
Сторінки:
11
DOI:
10.1007/bf00033403
Date:
September, 1995
Файл:
PDF, 471 KB
english, 1995