作者: R.C. Schmidtling
DOI: 10.1016/0378-1127(87)90037-5
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摘要: Abstract Research on locating seed orchards in warmer climates to promote early and abundant flowering is reviewed. In general, pine increases flowering, but problems with reproductive phenology may limit transfer into sub-tropical unless supplemental mass pollination used. ‘After-effects’ render produced southern locations unfit for use northern locations, a point needing further investigation.