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DP 515 BG/RR A New Mid-Full Maturing Picker Variety With Bollgard & Roundup Ready. Curtis Williams, Ph.D. Senior Breeder Tifton, GA. Ken E. Lege’, Ph.D. Dir. of Technical Service East Region Piedmont, AL. DP 515 BG/RR (DPLX04Y170BR). Characteristics. - PowerPoint PPT Presentation
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DP 515 BG/RRA New Mid-Full Maturing Picker Variety
With Bollgard & Roundup Ready
Ken E. Lege’, Ph.D.Dir. of Technical Service
East Region
Piedmont, AL
Curtis Williams, Ph.D.Senior Breeder
Tifton, GA
DP 515 BG/RR(DPLX04Y170BR)
• Breeder: Dr. Curtis Williams, Tifton, GA• Mid-Full maturity• Semi-smooth leaves• Tall, upright plant• Bushy fruiting habit• Excellent yield potential (yielded = DP 555 BG/RR)
• Very good fiber quality potential (better than DP 555 BG/RR)
• Storm tolerance: 4 (1=loose, 10=high plains type)
• Seed size (#/lb): 5300-5800 (slightly larger vs. DP 555 BG/RR)
Tested Beltwide in OVTs, ASTs in 2005Introductory commercial quantities in 2006Full commercial quantities expected for 2007
Characteristics
DP 515 BG/RRBreeding History2000 – Original cross made at Scott, MS2000-01 – F1 grown at Costa Rica2001 – F2 bulk population grown at Tifton, GA; selected for
apparent yield, maturity, lint percent & HVI2002 – F2:3 progeny rows grown at Tifton, GA and sprayed
OT with glyphosate @ 4TL stage; row # 1134, later tested as DPLX04Y170BR, selected for maturity, apparent yield potential, lint percent & HVI
2003 – Replicated tests at 3 GA locations; seed increased at Scott, MS
2003-04 – Seed increased at Costa Rica2004 – Tested at 14 replicated stage 4 locations beltwide;
seed increased in AZ2005 – Large-plot, on-farm testing and OVT testing beltwide2006 – Continued large-scale testing and introductory
commercial quantities
0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160D
P 5
15 B
G/R
R
DP
143
B2
RF
Relative Difference in DD60s to reach 100% open*
*based on D&PL Technical Services final plant map data compiled as of 12.7.2006
Relative Maturity DifferencesBeltwide
DP
555
BG
/RR
DP
444
BG
/RR
DP
117
B2
RF
DP
164
B2
RF
DP
445
BG
/RR
DP
455
BG
/RR
DP
449
BG
/RR
DP
454
BG
/RR
DP
488
BG
/RR
DP
110
RF
DP
147
RF
DP
434
RR
DP
432
RR
DP
494
RR
DP
167
RF
DP
121
RF
66 on-farm locations Beltwide; 2005-06; 12-19-06
Plant Ht (in)
Total Nodes
Fruit-ing
Nodes
Height:Node Ratio
(in/inter-node)
Node of 1st Fruit-ing
Branch
Node of Upper-most
Cracked Boll
Node of Upper-most
Harvest-able Boll
DD60s earlier vs DP
555 BG/RR
DP 445 BG/RR 35.0 19.8 11.2 1.77 5.6 11.5 15.8 105
DP 455 BG/RR 39.5 21.3 12.1 1.86 5.7 11.7 16.8 70
DP 454 BG/RR 37.3 21.2 11.7 1.77 6.1 11.8 16.8 73
DP 515 BG/RR 38.2 22.0 12.2 1.73 6.3 12.2 17.5 54
DP 555 BG/RR 41.0 23.4 13.1 1.75 6.7 12.5 18.9
LSD (0.05) 3.7 1.6 1.6 NS 0.6 NS 1.5 86
DP 515 BG/RR vs mid-full D&PL BG/RRsPlant Growth and Maturity
Values within columns in blue font do not significantly differ from the highest value (underlined) at P<0.05.
DP 515 BG/RR Performance
• Vs. key D&PL BG/RRs– DP 555 BG/RR (#1 in 2006)– DP 444 BG/RR (#2 in 2006)– DP 445 BG/RR– DP 455 BG/RR– DP 454 BG/RR
• Vs. key competitor varieties
*source: ‘Cotton Varieties Planted, 2006 Crop’, USDA-AMS
Cents/lb or Loan Value = $0.52/lb +/- premiums or discounts according to 2006 USDA Loan Chart; $/A = Yield x Loan;T test: NS = not significant; *** = significant at P <0.001
DP 515 BG/RR vs DP 555 BG/RR2005-06 Beltwide data; all datasources (as of 12-19-06)
% D
iffe
ren
ce
DP 515 BG/RR 655 1199 38.7 35.8 4.55 29.4 82.4 53.98DP 555 BG/RR 653 1203 40.3 35.4 4.51 28.6 81.6 53.66n 333 357 348 333 333 333 333 332T test NS NS *** *** NS *** *** NS
DP 515 BG/RR vs DP 555 BG/RRAll Data Sources (as of 12-19-06)
% Y
ield
Dif
fere
nce
N 7 5 7 14 20 14 79 43 111 57
(+ = DP 515 BG/RR better)
Regional Performance
No significant differences, according to T testsWest = SJV and AZ; High Plains = Northern and Southern HP
DP 515 BG/RR vs DP 444 BG/RR2005-06 Beltwide data; all datasources (as of 12-19-06)
% D
iffe
ren
ce
DP 515 BG/RR 637 1168 38.1 35.8 4.51 29.5 82.4 54.30DP 444 BG/RR 627 1143 38.4 35.8 4.10 29.3 82.9 54.54n 358 380 371 358 358 358 358 357T test NS NS NS NS *** NS *** NS
Cents/lb or Loan Value = $0.52/lb +/- premiums or discounts according to 2006 USDA Loan Chart; $/A = Yield x Loan;T test: NS = not significant; *** = significant at P <0.001
DP 515 BG/RR vs DP 444 BG/RRAll Data Sources (as of 12-19-06)
% Y
ield
Dif
fere
nce
N 8 12 25 17 8 75 110 56 66
(+ = DP 515 BG/RR better)
Regional Performance
* = significant at P< 0.05, according to T test; all other regional differences were not significantHigh Plains = Northern and Southern HP
*
DP 515 BG/RR vs DP 445 BG/RR2005-06 Beltwide data; all datasources (as of 12-19-06)
% D
iffe
ren
ce
DP 515 BG/RR 649 1191 38.4 35.9 4.53 29.5 82.5 54.26DP 445 BG/RR 656 1184 38.5 36.2 4.42 31.0 83.1 55.00n 442 470 461 442 442 442 442 441T test NS NS NS *** *** *** *** ***
Cents/lb or Loan Value = $0.52/lb +/- premiums or discounts according to 2006 USDA Loan Chart; $/A = Yield x Loan;T test: NS = not significant; *** = significant at P <0.001
DP 515 BG/RR vs DP 445 BG/RRAll Data Sources (as of 12-19-06)
% Y
ield
Dif
fere
nce
N 7 5 10 12 29 17 9 78 103 117 83
(+ = DP 515 BG/RR better)
Regional Performance
* = significant at P< 0.05, according to T test; all other regional differences were not significantHigh Plains = Northern and Southern HP
*
DP 515 BG/RR vs DP 455 BG/RR2005-06 Beltwide data; all datasources (as of 12-19-06)
% D
iffe
ren
ce
DP 515 BG/RR 650 1190 38.5 35.9 4.53 29.4 82.5 54.18DP 455 BG/RR 635 1140 39.2 36.1 4.19 30.1 82.1 55.03n 425 454 445 425 425 425 425 424T test NS * ** * *** *** *** ***
Cents/lb or Loan Value = $0.52/lb +/- premiums or discounts according to 2006 USDA Loan Chart; $/A = Yield x Loan;T test: NS = not significant; *, **, *** = significant at P <0.05, <0.01, and <0.001, respectively
DP 515 BG/RR vs DP 455 BG/RRAll Data Sources (as of 12-19-06)
% Y
ield
Dif
fere
nce
N 7 10 13 28 17 10 77 90 119 83
(+ = DP 515 BG/RR better)
Regional Performance
-10.6%
* = significant at P< 0.05, according to T test; all other regional differences were not significantWest = SJV and AZ; High Plains = Northern and Southern HP
*
DP 515 BG/RR vs DP 454 BG/RR2005-06 Beltwide data; all datasources (as of 12-19-06)
% D
iffe
ren
ce
DP 515 BG/RR 653 1196 38.6 35.9 4.53 29.5 82.5 54.18DP 454 BG/RR 643 1193 39.5 35.1 4.10 29.3 82.4 53.29n 438 460 451 438 438 438 438 438T test NS NS *** *** *** NS NS ***
Cents/lb or Loan Value = $0.52/lb +/- premiums or discounts according to 2006 USDA Loan Chart; $/A = Yield x Loan;T test: NS = not significant; *** = significant at P<0.001
DP 515 BG/RR vs DP 454 BG/RRAll Data Sources (as of 12-19-06)
% Y
ield
Dif
fere
nce
N 9 6 11 23 17 6 81 110 116 81
(+ = DP 515 BG/RR better)
Regional Performance
No significant differences, according to T testsWest = SJV and AZ; High Plains = Northern and Southern HP
DP 515 BG/RR vs DP 555 BG/RR and Competitors
Variety n $ /
acre
Yie
ld
% T
urno
ut
Sta
ple
Mic
rona
ire
Str
engt
h
Uni
form
ity
cent
s/lb
DP 515 BG/RR 189 617 1132 37.8 35.4 4.62 28.8 81.9 54.22DP 555 BG/RR 226 608 1117 39.3 35.1 4.53 28.4 81.0 54.06PHY470WR 125 601 1104 35.4 35.5 4.43 30.9 82.8 54.28ST5599BR 234 594 1106 37.4 35.1 4.63 28.9 81.7 53.38ST4554B2RF 181 587 1073 36.2 35.4 4.58 29.7 81.9 54.18FM960B2R 170 584 1057 35.8 36.3 4.30 30.8 81.9 55.14450001G 182 529 959 35.1 35.9 4.18 27.5 81.7 54.71PHY485WRF 136 528 1003 35.7 35.4 4.60 30.2 82.5 52.09LSD (0.05) NS NS 2.9 NS NS 2.7 1.6 NS
Cents/lb or Loan Value = $0.52/lb +/- premiums or discounts according to 2006 USDA Loan Chart; $/A = Yield x Loan;Values within columns in blue font do not significantly differ from the highest value (underlined) at P<0.05.450001G sold as brands DG2520B2RF, CG4020B2RF, ST4357B2RF, BW4630B2RF and Americot 1532 B2RF.
Least square mean analysis; restricted to trials where >4 of these varieties were tested;2005-06 Beltwide data; all datasources as of 12-19-06
Summary – DP 515 BG/RR
• Good companion to DP 555 BG/RR– Earlier maturity, but still mid-full– Slightly better seedling vigor– Less aggressive growth habit– Slightly better storm tolerance– Slightly better fiber quality potential– Equivalent yield potential
• Good yield performance vs. D&PL early- to mid-maturing varieties– DP 444 BG/RR, DP 445 BG/RR, DP 455 BG/RR &
DP 454 BG/RR
Summary – DP 515 BG/RRcont’d
• Strong yield & fiber quality performance history – Midsouth/SE, and picker areas of TX– Best performance in southern tier
• Strong performance history against key competitor varieties
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