Agriculture & Biology
phloem
52%
willows
48%
Salix
28%
Salicaceae
25%
Quercus virginiana
24%
leaves
24%
fluid mechanics
22%
phenology
22%
District of Columbia
22%
physiology
21%
habitats
21%
xylem
20%
ecological function
19%
drought
18%
cold tolerance
17%
carbon
16%
flowers
14%
water
14%
cold zones
14%
hydraulic resistance
14%
gardens
14%
xylem vessels
13%
freezing
13%
plant vascular system
13%
sieve elements
12%
stress tolerance
12%
woody plants
12%
Populus
12%
Adelges tsugae
12%
sieve tubes
12%
blood vessels
11%
Sequoia sempervirens
11%
Tsuga canadensis
11%
water stress
11%
plant ecology
10%
soil chemistry
10%
Cucurbita maxima
10%
freezing point
10%
stems
10%
Fagaceae
10%
Quercus rubra
10%
tree height
10%
wood anatomy
9%
understory
9%
niches
9%
Angiospermae
9%
selective breeding
9%
pumpkins
9%
resource allocation
9%
geographical distribution
9%
Medicine & Life Sciences
Phloem
100%
Ecosystem
39%
Xylem
31%
Droughts
27%
Salix
26%
Soil
25%
Flowers
24%
Cold Climate
18%
Blood Vessels
17%
Quercus
17%
Water
16%
Salicaceae
15%
Anatomy
15%
Seedlings
15%
Plant Physiological Phenomena
14%
Magnoliopsida
14%
Carbon
13%
Inflorescence
13%
Cucumis sativus
13%
Mycobiome
12%
Selective Breeding
12%
Ecology
12%
Cucurbita
11%
Sugars
10%
Coloring Agents
10%
Phylogeny
9%
Resource Allocation
9%
Pressure
8%
Microbiota
7%
Fruit
7%
Growth
7%
Gardens
7%
Plant Leaves
5%
Ipomoea nil
5%
Earth & Environmental Sciences
freezing
25%
tolerance
18%
phloem
13%
phenology
13%
habitat
12%
understory
10%
soil chemistry
9%
flowering
9%
garden
9%
resource allocation
9%
phylogeny
8%
invasive species
8%
anatomy
8%
trade-off
8%
maturation
7%
fitness
7%
electrolyte
7%
litter
7%
leakage
7%
evapotranspiration
7%
plant species
6%
community structure
6%
microbial community
6%
family
6%
vessel
6%
soil moisture
6%
damage
6%
flower
5%
hydraulics
5%
moisture
5%
decomposition
5%
niche
5%
salt
5%
salinity
5%