The Impact of Drought and Vascular-Inhabiting Pathogen Invasion in Pinus taeda Health

Table 4

Least square means and standard error of various response variables under three different watering conditions.

Variables	Normal watering; LS Mean± SE	Moderate drought; LS Mean ± SE	Severe drought; LS Mean ± SE
LL/HT	0.44 ±0.03a	0.56 ±0.03b	0.57 ±0.03b
OL/HT	0.54 ±0.04a	0.63 ±0.04a	0.61 ±0.04a
HTI (cm)	20.57 ±1.99a	20.66 ±1.99a	17.36 ±1.98b
Bud-break	2.27 ±0.26a	2.07 ±0.26a	1.71 ±0.26a
Ny (g)	5.56 ±0.71a	6.00 ±0.71a	4.59 ±0.71a
Sy (g)	4.72 ±0.36a	4.56 ±0.36a	3.64 ±0.36a
FRY (g)	1.29 ±0.16a	1.09 ±0.16a	0.82 ±0.16a

Note: SE: standard error, LL/HT: lesion length/seedling height, OL/HT: occlusion length/seedling height, HTI: height growth, Ny: needle dry biomass, Sy: stem dry biomass, and FRY: fine root dry biomass. Different letters indicate Tukey pair-wise differences among watering treatments within each variable at α = 0.05.