Table 2.

Breakpoint, slope, and r² results from regression analyses of the transpiration response of 10 cotton genotypes to VPD.

Genotype	Breakpoint	Slope 1	Slope 2	r 2
	(X0) ± SE
Sicot 41	5.3 ± 0.5	13.51	0.01	0.54
CSX5422	4.3 ± 0.5	16.91	2.51	0.50
Sicot 80BRF	4.8 ± 0.5	14.45	0.45	0.45
Sicot 746B3F	6.6 ± 2.3	12.17	−38.72	0.50
DeltaPEARL	4.5 ± 0.4	17.39	2.54	0.57
CSX2027	Linear	11.87		0.48
CS 50	Linear	12.39		0.58
RC-89	Linear	9.64		0.44
Siokra L23	Linear	12.77		0.60
CSX8521	Linear	10.48		0.42