Measured crop performance cotton 1954

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Research Report No.

14

Dec. 1954

MEASURED CROP PZRFOR}1AJ.1CE

COTTOI'J

BY

v,

H. ~\rKn.J, RESEARCH ASSOCIATE PROFESSOR

IN CHARGE CROP VARIETY TESTING AND

F. W. BRIT'TAltJ, RESEARCH n~STRUCTOR

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Cotton Variety Test for the

1954

season.

The objective of these tests is to o....rta in performance infonnation nn commercially available cotton varieties and to evaluate n~Ter ones that have possibilities of excelling or equalling those now in ~eneral

productiJn.

Test Locations Three field tests vrer-e conducted.

iecords accumulated for several years from tests of this kind in-dicate 'ihich varieties are capable of producing consistently superior

yields.

The testing a[ency recognize~ the cooperative spirit and civic minded servic6 rendered by the farmers ~ilio have furnished, prepared and cultivated the land and aided in harvesting these crops.

ThE Countv Agents and their assistants have contributed to the success of these tests by aiding in locating and observing them from timE to time.

':'he tests wer-e conducted on the f'olLovtng private farms.

Farm of D. T. Redfearn, Anson County, Wadesboro, P. O. Box 215, County Asent J. R. Potter, and assistants cooperating.

Farm of J. Q. Parnell and David Parnell, Robeson County. Parkton, N. C. County A';ent, O. P. Ovens and assistants cooper-ating ,

Farm of Joe Sanderson and E. K. Sanderson, Wayne County, Four Oaks, :1.t. I, County A"~'ent G. ~1. Goforth and assistants cooper-at Lng ,

Agencies Sponsoring Entries Coker Pedigreed Seed Co., Hartsville, S. C. Delta and Pine Land Co., Scott, Miss.

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-2-r1anagem~nt of Test Fields

Cultural practices, such as soil preparation, date of planting, fertilization, cultivation and boll weevil control measures were in accord with good farm practice and l·Tere t.he same for all entries in a ?,iven test.

Plant ing, t.hanmng , prck rnz and det errmrrin.; yield were d lr-ectLv

super-vised by personnel of the North Carolina A~riculturalExperiment Station. Samples for numoe r of bolls per pound, lint percentages and staple length were obtained just (:,efore picking. SampLe s for these deterrmnat.Lons were processed in the laboratories at North Carolina State Colle~e.

The

1954

tests were conducted on soils relatively free of wilt, there-fore no records were obtemed on "Tilt susceptLcd.Lt.ty ,

Criteria Used in Evaluating Cotton Varieties Yield of seed cotton per acre was determined by pickin~ six

acre plots, obtaining the mean and multiplyin~ by 200.

1 200

Lint )ercentage was detennined from tlrTO aamxLes of seventy five bo'Ll.s

each.

L~s. of lint cotton per ~ calculated.

Seed cotton Der acre x

%

lint = lint cotton per acre.

Number

of

bo·'_ls required to make a pound of seed cotton was determined by "t'Teighing tTfTO, seventy-five 'boll sampLc.s0'

Staple length 1'·7a8 determined on ginned sam-ples by licensed cotton

classers of Cotton Division, Agricultural ti:"'rketing Services, U.S.D.A.

'I'he re are from time to time nev var-Let i.es of cotton developed and

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the varieties non most generally grown.

Cotton ~srOl·]erS should be constantly on t~,~ alert for var-Le't i.cs that

excel in yield and other qualit iGS that LnfIuence marc pr-ofi.tab l,e pro-duction. However, communities and individual f2rm~rs should consider carefull:T the performance records and other characteristics before chang-ing or l)rinGin2. in new varieties.

In choosing or dec Ldin; on a cotton varLet.y that is most Li.keLy to produce superior yields and qualities, a num~Jer of characteristics in addition to yield must ~Je considered. For example: varieties that possess little or no 1-lilt resistance may ')8 very undesirable if the soil is in-fected T·~ith '{.Tilt or ani srns , Likewise, Lar- e ~)olls are very important for efficient hand Dickin'-;: whi.Le this character is relatively unimportant if cotton is harvested mechanically.

Seasonal Conditions

Seasonal conditions for the production of cotton were variable. At the Anson Courrty Location a poor stand rras obtained. Cool, vet veat.he r favored seedlin: diseases that caused many pJants to die. EYtremely dry wEather prevailed throushout the ~rowin6 season and the vegetative gro~~h and consequent yield "las Low,

While dry ~Teat11er prevailed in Ro'Jeson County, a verv satisfactory yield of cotton 1A]"aS oot amed in that test.

Seasonal cond it ions l\lere very f'avor-aiLe in Wayne County and the yie .ds 1J-Jere excellent.

Performance Records

Records of the

1954

cotton tests are given for each of the thre6

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-4-A sinrle y6ar's reoord at a single location may not portray the true performance of a variety over a wide ran;€ of sEasonal conditions. Records of lon~er duration are usually more dependable. Therefore, records on t~e varieties that have been evaluated for t~o and three years are also reported.

Differences in ~

Small differences in yield should be considered cautiously since it

is not possi~le to determine absolute performin~ ability. The size of difference that may have bee~ due to cha~ce has been computed and listed at the end of each t.ab Le of t951~ data as "Least s Ign if Lcarrt difference

(L.S.D.)". A similar value is not listed for r6cords of lJnger duration ~ut the level for significance will be some1mat smaller. These measures of chanCE difference should remind the reader not to misintErpret small

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AVERAGE YIELD OF SEED COTTON

PIIDmNT ]!1tries

Coker 100 Wilt B.R.S. Coker 100 Wilt 50~J981

Coker 100 Staple

Coker L.H. 51-18

Early Fluff

Plains

Elnpire P 502

Deltapln.a 15* D& PL Fox*

L.S.D.

Seed C.otton L1Js./Acre

Cleveland Co. Anson Co.

~~J

__

l~~

860 846

914

770

794 660 914 794 894 870 864 756 820 850 776 756 856 814

77

N,S. Aver-age ~YG.?ll 853 842 727 854 882 810 83.5 766 835

The 1952 test in CLeve'Land County vas a complete loss due to a hail storm , therefore, only two y€ar data w~s included.

*Previous tests on wilt infected soil have sho,~ that D&PL Fox and D &PL

15

are susceptible to wilt and, therEfore, should not be ~ro~m where wilt is prevalent.

1954 COTTON PERFORlWTCE TEST

ANSON COUNTY

Seed Staple 3f) 115/L~J•

Lint Cotton Lint Lengt.h of Seed

Entries Lbs ,fA Lbs./A Percent Erld1' In. S-Oi~91L.

Hoorets 1 322 920 35

32

90

IJ.ooret_s ₃₃

266

₇₄₀ ₃₆ 32 ' ₇₉

Moore's Big 3011 238 744

32

33· 83

Noore ' s S~)ecial

266

830 32 32, ₉₃

Coker 100 Staple 238

660

36

33

9]-Earl"',T Fluff

313

870 36 33

86

D& PL Fox* 277 . 814 34

32

98

Del.t.ap inc 1.5* 287 756 38

33

97

Plains 265 756 35

33

86

Empire P 502

315

8.50 37

33

82

Coker 100 Wilt

51-30

307

876

35

33

81

Coker L.H. 51-18 278 794

35

33

91

Coker 100 Wilt

50-3981

254 770

33

-6-AVERAGE YIELD OF SEED COTTON

C~A.STAL PLAIN Robeson County

Seed Cotton Lbs./Acre Entries

Coker 100 Wilt B.R.S.

D & PL Fox* Plains

Coker 100 Wilt B.R.S. Coker 100 Staple

Coker 100 Wilt

50-3981

Coker L. H. 51-18 Early Fluff

Empire P

502

Deltapine 15* L.S.D.

.05

1028 Lbs. 1075

889

1586 Lbs ,

1476

1526

1586 Lbs, 1456

1670

1524

1384

1186

1180 257 1954

1466

Lbs. 1260 1)14 1466 Lbs , 1220 1290 1360 1404

1336

1296

N.S.

Average 3 years 1360 1270 124) 2 Yrs.,Ave. 1526 1338 1480

1442

1394

1261 1238

*Previous tests on wilt infected soil have shown that D

&

PL Fox and D&PL

15

are susceptible to wilt and, therefore, should not be grown where wilt is prevalent.

1954

COTTON PERFO~\NCE TEST

ROBESON COillITY

Seed Staple Bolls/Lb.

Lint Cotton Lint Length of Seed

Entries Lbs , fA Lbs

./J\

Percent 32nd. In. Cotton

Coker 100 Wilt

1953

B.R.S.

36

32

88

Coker L.H. 51-24

468

1300

36

32

82

Coker R.H.

49-196

535 1456

36

31

77

Coker

100

Staple

415

1220 34

32

84

Empire P-502

508 1336

38

31

70

Early Fluff

491

1404

35

33 81

r1oore1s ₁

528 1426

37

32

83

1Jloore1s

JJ

477 1324

36 32 74

Deltapine 1.5*

50.5

1296 39

32

86

D & PL Fox" 454

1260

36

32

86 L.S.D.

• 05

N.S•

*Previous tests on wilt infected soil have shown that D

&

PL F~x and D

&

PL

15

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~V~GE

YIELD OF SEED COTTON

COAST-riL PLAIN .rver-age 3 Years 1796 1692

1739

1701 2 Yrs. A"Vfj.

1985-2074 2000 1880

1907

1792

Entries

Coker 100 Wilt B.R.S. Coker 100 Staple D& PL Fox* Plains

Coker 100 Wilt B.R.S. Coker 100 Wilt

50-3981

Coker L.H.

51-18

Early Fluff Empire P-502 Deltapine 15*

L.S.D.

*Previous tests on wilt are suscept ible to "~ilt

Seed Cotton Lbs,/~cre Halifax Co. Halifax Co. 1NayneCo.

1952 1953 1954

1418 1454 2516

1321

1446

2310

1456 1480 2280

1408 1420 2276

1454 2516 1494 2654

1430

2570

1420

2340

15*

897

Empire F-502

939

~lni~3

751

Early Fluff 842

Moore- s

33

lOl}9

Moore:s Special

867

Mooreis Big Boll 841

Moore1s ₁

950

Coker 100 Staple 855 Coker L~H. 5J--~8

977

Coker L,H, 51-:4 1013 Coker R,H, ~0-l96

892

Coker 100 ;'["2..:t

51-55

927

Coker 100 \'Jj~Lt

19.53

B. R.S.

952

Coker 100 Wilt

51-30

913

Coker 100 Wilt

50-3981

982

Coker 100 Wilt

1954

B.R.S.

931

Entries

L.S.D.

.05

Lint

Lbs./A

Seed Staple Bolls/Lb.

Cc~,··~on Lint Length Of Seed

Lb§..JL Percent 32nda In. Cotton

2280 ₃₅

₃₃

88

2300 ₃₉ ₃₃ 83

2470

38

33

2554 37

33

73

2310

37 33 74

68

2654 37