2002 Upland Cotton Variety Trial Results
Lint yield and fiber quality

Wellton, AZ

Planting Date:	5 April	Final Irrigation Date:	3 August	Harvest Date:	13 September
Total Number of Irrigations:	7	Total N Applied:	0 lbs N/acre	General Soil Texture:	Silt loam

Cooperator: Marlatt Brothers

Company	Variety	Lint Yield	Percent Lint	Value6
		(lbs/Acre)		($/acre)
Stoneville	ST4892BR	1616.8 a1	34.7 ab	868
Deltapine	DP451BR	1554.6 a	32.1 cd	864
Buttonwillow	BR303	1528.2 a	30.8 de	856
Deltapine	DP555BR	1523.3 a	35.6 a	808
Stoneville	ST4793R	1523.0 a	34.1 abc	787
Deltapine	SG215BR	1492.5 ab	34.7 ab	806
Deltapine	DP388	1366.3 bc	33.1 bc	748
Buttonwillow	BR9801	1333.6 c	32.0 cd	747
Fiber Max	FM958	1306.3 c	34.2 abc	726
Fiber Max	FM989BR	1083.2 d	32.4 cd	605
ACGA	AG3601	1064.2 d	28.8 e	597
LSD0.052		337	2.2	--
OSL3		0.0001	0.0001	--
CV (%)4		6.7	4.6	--

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	1.11 de	35.5 de	29.1 cd	81.3 bc	181
Deltapine	DP451BR	4.4 de	1.13 cd	36.5 c	27.8 d	80.8 cd	358
Buttonwillow	BR303	4.4 cde	1.22 a	39.0 a	31.8 ab	81.8 abc	405
Deltapine	DP555BR	4.2 e	1.12 cde	36.0 cd	29.7 c	79.7 e	370
Stoneville	ST4793R	5.0 a	1.10 ef	35.3 de	28.3 cd	82.3 ab	-44
Deltapine	SG215BR	4.7 ab	1.08 f	34.7 e	25.3 e	81.3 bc	80
Deltapine	DP388	4.2 e	1.12 cde	36.0 cd	29.5 c	80.8 cd	274
Buttonwillow	BR9801	4.7 abc	1.17 b	37.8 b	31.7 ab	82.5 a	409
Fiber Max	FM958	4.4 de	1.12 de	36.0 cd	29.8 c	80.0 d	363
Fiber Max	FM989BR	4.3 e	1.12 cde	36.0 cd	31.3 b	81.5 abc	393
ACGA	AG3601	4.6 bcd	1.14 c	36.7 c	33.1 a	81.0 cd	415
LSD0.052		0.3	0.03	1.0	1.5	1.0	--
OSL3		0.0001	0.0001	0.0001	0.0001	0.0001	--
CV (%)4		4.0	1.5	1.8	3.4	0.8	--

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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