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

Table 4

Contribution of nonleaf organs to seed weight in cotton grown under different irrigation treatment in 2012 and 2013.

Variety	Treatment	Seed weight per boll (g)			Contribution (%)
		Control	Capsule walls plus bracts; darkened	Stalk darkened	Capsule walls plus bracts	Stalk	Total contribution
2012
Xinluzao 33	CK	4.7 ± 0.8^a	4.0 ± 0.3^a	4.3 ± 0.4^a	14.2 ± 1.0^b	9.2 ± 1.2^b	23.4 ± 2.7^c
	T1	4.5 ± 0.4^a	3.9 ± 0.7^a	3.9 ± 0.9^a	14.8 ± 1.1^b	13.0 ± 2.9^a	27.8 ± 2.1^b
	T2	4.4 ± 0.7^a	3.6 ± 0.3^a	3.7 ± 0.5^a	16.8 ± 1.4^a	14.3 ± 1.6^a	31.1 ± 3.3^a
Xinluzao 45	CK	5.0 ± 0.3^a	4.3 ± 0.9^a	4.5 ± 0.1^a	13.4 ± 1.3^b	9.6 ± 0.5^b	23.0 ± 1.8^b
	T1	4.8 ± 0.5^a	3.5 ± 0.6^b	4.0 ± 0.2^b	26.5 ± 2.1^a	16.7 ± 1.8^a	43.2 ± 3.9^a
	T2	4.7 ± 0.4^a	3.5 ± 0.2^b	3.9 ± 0.2^b	24.7 ± 1.9^a	17.5 ± 2.3^a	42.2 ± 2.4^a
Xinluzao 46	CK	5.4 ± 0.2^a	4.9 ± 0.2^a	5.1 ± 0.2^a	10.1 ± 1.7^b	5.3 ± 1.3^b	15.4 ± 1.7^b
	T1	4.3 ± 0.2^b	3.9 ± 0.9^b	4.2 ± 0.5^b	12.7 ± 1.2^a	10.0 ± 1.1^a	22.7 ± 2.2^a
	T2	4.1 ± 0.4^b	3.5 ± 0.3^b	3.7 ± 0.6^b	14.5 ± 2.1^a	10.3 ± 1.3^a	24.8 ± 2.6^a
2013
Xinluzao 33	CK	5.0 ± 0.4^a	4.4 ± 0.6^a	4.7 ± 0.8^a	18.9 ± 1.1^b	6.0 ± 0.5^b	18.6 ± 1.2^b
	T1	5.5 ± 0.8^a	4.1 ± 0.3^a	4.9 ± 0.4^a	26.0 ± 1.8^a	10.7 ± 2.3^a	36.7 ± 2.7^a
	T2	5.0 ± 0.3^a	3.6 ± 0.3^b	4.6 ± 0.2^b	27.4 ± 1.6^a	7.6 ± 1.5^b	35.0 ± 2.2^a
Xinluzao 45	CK	5.6 ± 0.5^a	3.9 ± 0.2^a	5.0 ± 0.6^a	29.7 ± 0.9^c	9.9 ± 0.8^b	39.6 ± 1.1^c
	T1	5.7 ± 0.7^a	3.6 ± 0.6^ab	4.9 ± 1.0^a	37.1 ± 2.0^a	15.4 ± 1.2^a	42.5 ± 2.6^b
	T2	5.0 ± 0.5^a	3.3 ± 0.5^bc	4.3 ± 0.8^a	34.9 ± 1.2^b	14.5 ± 1.1^a	49.4 ± 1.9^a

Note: Values are means ± SD. Comparing water treatments within a cultivar, values within a column followed by different letters are significantly different at the 0.05 probability level. CK: conventional irrigation; T1: slight deficit irrigation; T2: moderate deficit irrigation.