2002 Upland Cotton Variety Trial Results
Lint yield and fiber quality

Marana, AZ

Planting Date:	12 April	Final Irrigation Date:	22 August	Harvest Date:	16 October
Total Number of Irrigations:	7	Total N Applied:	87 lbs. N/acre	General Soil Texture:	Clay loam

Cooperator: Marana Ag. Center

Company	Variety	Lint Yield	Percent Lint	Value6
		(lbs/Acre)		($/acre)
Stoneville	ST4892BR	1549.0 a1	37.8	814
Stoneville	ST4793R	1474.2 ab	37.4	804
Deltapine	DP449BR	1461.8 ab	36.3	813
Deltapine	DP555BR	1460.3 ab	40.0	804
Deltapine	DP565	1459.5 ab	36.5	809
Deltapine	DP448B	1395.3 b	35.4	772
Fiber Max	FM958	1249.1 c	37.5	695
Fiber Max	FM966	1218.7 c	36.9	679
ACGA	AG3601	1213.5 c	34.1	676
LSD0.052		106.7	--	--
OSL3		0.0001	--	--
CV (%)4		5.3	--	--

¹Means followed by the same letter are not significantly different according to a Fisher's LSD means separation test.
²LSD: Least Significant Difference.
³OSL: Observed Significance Level.
⁴CV: Coefficient of Variation.
⁵Average premium or discount applied to the lint based on CCC loan schedule.
⁶Value of lint per acre based on CCC loan schedule of discounts and premiums and assuming a base value of 52.00 cents per pound.

Fiber Quality

Company	Variety	Micronaire	Fiber Length	Staple Length	Fiber Strength	Uniformity Index	Premium/ Discount5
			(100ths)	(32nds)	(g/tex)		(points)
Stoneville	ST4892BR	4.9 a	1.09 d	35.0 d	26.6 e	82.0 ab	64
Stoneville	ST4793R	4.9 a	1.09 d	35.0 d	26.5 e	82.5 a	253
Deltapine	DP449BR	4.6 bc	1.13 bc	36.5 bc	29.4 c	82.3 ab	361
Deltapine	DP555BR	4.4 c	1.12 cd	36.0 c	27.6 de	79.5 d	305
Deltapine	DP565	4.5 bc	1.18 a	37.8 a	28.7 cd	82.0 ab	345
Deltapine	DP448B	4.4 c	1.13 c	36.5 bc	27.2 e	81.3 bc	331
Fiber Max	FM958	4.6 b	1.15 bc	37.0 ab	30.0 b	80.8 c	365
Fiber Max	FM966	4.5 bc	1.15 bc	36.8 bc	33.4 a	82.3 ab	376
ACGA	AG3601	4.4 bc	1.16 ab	37.0 ab	31.3 b	81.5 abc	374
LSD0.052		0.2	0.03	1.0	1.4	1.0	--
OSL3		0.0001	0.0001	0.0001	0.0001	0.0001	--
CV (%)4		2.7	1.7	1.9	3.3	0.9	--

¹Means followed by the same letter are not significantly different according to a Fisher's LSD means separation test.
²LSD: Least Significant Difference.
³OSL: Observed Significance Level.
⁴CV: Coefficient of Variation.
⁵Average premium or discount applied to the lint based on CCC loan schedule.
⁶Value of lint per acre based on CCC loan schedule of discounts and premiums and assuming a base value of 52.00 cents per pound.

Full Disclaimers

Issued in furtherance of Cooperative Extension work, acts of May 8 and June 30, 1914, in cooperation with the U.S. Department of Agriculture, James A. Christenson, Director Cooperative Extension, College of Agriculture and Life Sciences, The University of Arizona.

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