Agriculture & Biology
seed size
71%
shade
57%
seedlings
39%
shade tolerance
37%
nitrogen
37%
seed weight
35%
Samea
17%
Larix laricina
14%
Betula alleghaniensis
13%
Pinus resinosa
13%
Betula papyrifera
13%
Pinus strobus
12%
Pinus banksiana
12%
Acer saccharum
12%
seed growth
11%
Picea mariana
11%
Populus tremuloides
11%
Betula
9%
greenhouse experimentation
9%
Picea abies
9%
selection pressure
9%
soil
9%
understory
9%
Populus
9%
trichomes
8%
interspecific variation
8%
nitrogen fertilizers
8%
physiology
7%
seeds
4%
Earth & Environmental Sciences
seed size
100%
seedling
65%
nitrogen
38%
shade tolerance
23%
seed
17%
young
10%
ranking
9%
seed treatment
8%
resource availability
5%
hair
5%
understory
5%
regeneration
4%
fertilizer
4%
soil
4%