The Scientific World Journal

Research Article

Switchgrass Cultivar/Ecotype Selection and Management for Biofuels in the Upper Southeast USA

Table 4

Observed and long-term means for rainfall and temperature data during April through September (A–S) near sites on which switchgrass was grown in the upper Southeast USA. Departure from long-term (30 yr) normal was obtained by subtracting total precipitation and mean temperature from their respective long-term values.


Location¹	Long-term	A–S observed		Departure from long-term
Location¹	A–S	2000	2001	2000	2001

	Precipitation (cm)
KY	64.3	62.1	62.2	−2.2	−2.1
NC	58.6	101.3	78.3	42.7	19.7
TN₁	57.9	74.0	63.3	16.1	5.4
TN₂	65.6	54.2	60.5	−11.4	−5.1
VA_1,2	51.6	66.2	61.9	14.6	10.3
VA₃	58.7	62.3	53.4	3.6	−5.3
WV	58.5	62.6	62.0	4.1	3.5
Mean	59.3	69.0	63.1	9.6	3.8

	Mean temperature (°C)
KY	21.6	25.7	22.3	4.2	0.8
NC	18.7	24.2	21.6	5.5	2.9
TN₁	21.0	23.8	21.2	2.9	0.2
TN₂	22.1	25.6	22.7	3.5	0.5
VA_1,2	17.8	20.4	18.0	2.6	0.2
VA₃	20.0	22.4	19.9	2.4	−0.1
WV	18.5	20.4	18.3	1.9	−0.2
Mean	19.9	23.2	20.6	3.3	0.6

Locations: KY (Princeton), NC (Raleigh), TN₁ (Jackson), TN₂ (Knoxville), VA_1,2(Blacksburg), VA₃ (Orange), and WV (Morgantown).