1. Update on Provisia & Clearfield Rice Varieties
Steve Linscombe
H. Rouse Caffey Rice Research Station

3. 2017 Louisiana Rice Variety Trials

4. Recommended Clearfield Varieties

5. Recommended Clearfield Varieties
-Planted on 50,000 acres in LA in 2017
-Averaged 7,700 lbs/acre across 7 locations
-Ranged from 7,000-8,500
-Demonstrated good milling and appearance

6. Recommended Clearfield Varieties
-Averaged 8,050 lbs/acre across 7 locations
-3 year average over 8,000 lbs/acre
-Demonstrated good milling and appearance
-Favorable result from Kellogg’s in initial plant run

7. Clearfield Jazzman (CLJ027)
Multi Location Testing from
-Moderately susceptible to blast, sheath blight, and bacterial panicle blight
-Days to Heading: 84 days (1 week later than CL111)
-Semidwarf variety, similar to CL153 and CL111
-6.85mm milled grain (3.3 L:W ratio)
-Extremely low chalk
-2AP values slightly lower than JZMN2, but similar to DLLA2 and Thai Jasmine

8. Recommended Conventional Varieties

9. Recommended Conventional Varieties
-Averaged 7,965 lbs/acre across 7 locations
-3 year average over 8,000 lbs/acre
-Few inches taller than LA semidwarfs
-Lower milling yields (55% whole)
-Susceptible to blast

10. Recommended Conventional Varieties
-Arkansas Medium Grain
-Yield comparable or slightly better than Jupiter and CL272
-Improved blast resistance
-Similar in height to Jupiter
-1 week earlier in days to heading

11. Conventional Breeding Pipeline
Grain Type
Avg. Yield
Test Average
7,460
CL111
7,524
CL153
8,291
Entry 135
Long
8,292
Entry 136
8,572
Entry 201
8,644
Entry 262
8,500
Entry 263
8,331
Entry 267
8,321
Entry 365
8,504
CL272
8,220
Entry 612
Medium
8,365
Entry 685
9,765

12. Provisia (PVL01)
Multi Location Testing from

13. Provisia Breeding (PVL108)
-Promising experimental line
-Over 10% yield advantage over PVL01 in first and second crop
-Improved milling (65% whole) compared to PVL01 (62%)
-Similar chalk and disease package as PVL01
-5 days earlier
-~41 inches tall, PVL108 is slightly taller than PVL01
-Shorter grain length

14. 2017 Multi-location Testing Milling (whole/total)
Hybrid Update
Two advanced stage hybrids being considered for potential release
2017 Multi-location Testing
Hybrid / Variety
AVERAGE Yield (7 locs)
Milling (whole/total)
XP753
9563
51/73
CLXL729
9514
52/72
CLXL745
8971
53/72
CLH161
8234
57/72
LAH169
8096
56/73
CL153
7,700
61/73
CL272
8,050
60/71

15. TESTCROSS TRIAL, RICE RESEARCH STATION, CROWLEY, 2017
Hybrid Update
New promising hybrid combinations observed in 2017
TESTCROSS TRIAL, RICE RESEARCH STATION, CROWLEY, 2017
Hybrid/Variety
Days to heading
Height (in)
Grain Yield (lb/A)
NOTES
17TC 5
81  41
10750
CL Hybrid
17TC 41
76  43
10332
PV Hybrid
CLXL745
85  40
10091
XP753
86 
10009
CV Hybrid
17TC 97 84 37
9910
CLXL729
9482
17TC 116 86 38
9070
CL111 79 36
7424
CL Variety
PV01 89
6905
PV Variety

16. Hybrid Update
Efforts being made to increase research hybrid seed production efficiency

17. slinscombe@usarice.com www.usarice.com
Retired from LSU AgCenter October 1, 2017 Same day went to work for USA Rice as Director of The Rice Foundation Responsible for The Rice Leadership Development Program