by Carl H. Tubbs
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Effect of sugar maple root exudate on se...
Root-crown relations of young sugar mapl...
Influence of temperature and early sprin...
Finding the Mother Tree
Major Douglas-fir habitat types of centr...
Reliable, low-cost alternatives for pine...
A low-cost technique for increasing pine...
Listvennichnye lesa Arkhangelʹskoĭ oblas...
Reforesting landscapes