Contributions of Nonleaf Organs to the Yield of Cotton Grown with Different Water Supply

Table 1

Volumetric soil water content (%) at three depths and at three times during the 2012 and 2013 growing seasons.

Growth stage	Depth (cm)	2012			2013
		CK	T1	T2	CK	T1	T2
Full flower	0–20	13.4	11.5	8.7	15.2	14.3	13.0
	20–40	11.9	9.6	8.0	15.1	13.6	13.0
	40–60	10.1	8.5	7.7	15.0	12.5	10.6
Full boll	0–20	14.6	13.0	11.1	17.3	16.5	13.6
	20–40	13.9	10.4	9.8	17.2	15.0	13.1
	40–60	10.2	8.1	6.5	16.1	13.1	11.9
Boll open	0–20	12.5	10.6	9.1	16.3	15.8	12.2
	20–40	11.6	8.6	7.9	15.7	13.4	10.3
	40–60	9.4	7.9	7.1	16.6	12.9	9.9

CK: conventional irrigation; T1: slight deficit irrigation; T2: moderate deficit irrigation.