2002 Upland Cotton Variety Trial Results
Lint yield and fiber quality

Thatcher, AZ

Planting Date:	15 April	Final Irrigation Date:	10 September	Harvest Date:	22 October
Total Number of Irrigations:	6	Total N Applied:	77 lbs N/acre	General Soil Texture:	Grabe Clay Loam

Cooperator: Layton Farms

Company	Variety	Lint Yield	Percent Lint	Value6
		(lbs/Acre)		($/acre)
Deltapine	DP555BR	1628.6 a1	38.3 a	891
Deltapine	DP655BR	1585.6 ab	35.0 c	884
Fiber Max	FM991R	1532.9 b	35.6 bc	860
Fiber Max	FM989BR	1531.2 b	34.8 c	852
Stoneville	ST4793R	1459.8 c	36.2 b	731
Stoneville	ST4892BR	1426.0 cd	36.1 b	728
Deltapine	SG215BR	1383.1 d	34.9 c	719
ACGA	AG3601	1318.4 e	32.7 d	733
NMSU	1517-99	1289.4 e	32.4 d	644
LSD0.052		59.2	0.76	--
OSL3		2.8	1.5	--
CV (%)4		0.0001	0.0001	--

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)
Deltapine	DP555BR	4.2 bc	1.09 d	34.8 d	29.3 d	79.8 d	270
Deltapine	DP655BR	4.2 bc	1.13 bc	36.3 bc	31.1 c	81.8 bc	373
Fiber Max	FM991R	4.4 b	1.12 bc	36.0 bc	31.3 bc	81.8 bc	411
Fiber Max	FM989BR	4.2 bc	1.10 cd	35.5 cd	31.4 bc	81.0 bcd	364
Stoneville	ST4793R	4.7 a	1.08 d	34.8 d	28.2 d	82.0 b	-194
Stoneville	ST4892BR	4.4 b	1.10 cd	35.3 cd	29.5 d	81.8 bc	-95
Deltapine	SG215BR	4.2 bc	1.04 e	33.7 e	25.9 e	80.7 cd	1.7
ACGA	AG3601	4.3 b	1.14 b	36.8 b	32.6 ab	81.5 bc	361
NMSU	1517-99	4.0 c	1.20 a	38.3 a	33.5 a	83.5 a	-209
LSD0.052		0.3	0.03	1.1	1.4	1.2631	--
OSL3		4.7	2.0	2.0	3.1	1.0	--
CV (%)4		0.0066	0.0001	0.0001	0.0001	0.0006	--

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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