Louisiana Rice: Slight But Expected Yield Drop As Harvest Progresses

©Debra L Ferguson Stock Photography

Rice yields over the past week have dropped off a bit as compared to the excellent yields we have seen since harvest has begun. This decline in rice yields is expected as we move into later planted rice.

There are many reasons why rice yields decline as the year progresses, including increased temperatures during reproductive growth, increased disease pressure and increased insect pressure.

We went through a 10-day window where daytime temperatures were in the mid- to high-90s, and nighttime temperatures were well above 75 degrees. Unfortunately, we had several acres that were flowering and filling grain during that time.

I have observed several recently harvested fields that have had sections of blanked grain on the panicle and secondary diseases that moved in on that blanked grain. This could explain the reduced yield in those fields.

These looked like high-yielding fields from the road but appear less promising when you take a closer look.

The average of the reported rice yields in today’s report (not weighted for acres harvested) was 50 bbl/A (179 bushels/A; 9,383 lb/A).

Last week’s average of reported yields was 51 bbl/A (184 bu/A; 8262 lb/A).

Table 1. Reported Louisiana rice yields August 8 – 14, 2020.
Parish Variety Acres Yield
bbl/A bu/A lb/A
St. Landry Cheniere 200 46 166 7,452
St. Landry Cheniere 113 48 173 7,776
St. Landry Cheniere 65 46 166 7,452
St. Landry Cheniere 60 47 169 7,614
St. Landry Cheniere 50 45 162 7,290
St. Landry Cheniere 122 38 137 6,156
Vermilion Cheniere 65 41 148 6,642
Acadia Cheniere 110 45 162 7,290
Acadia CL111 30 50 180 8,100
Acadia CL111 115 46 166 7,452
St. Landry CL153 92 47 167 7,533
Evangeline CL153 88 41 148 6,642
Acadia CL153 86 49 176 7,938
Acadia CL153 150 48 173 7,776
Acadia CL153 55 44 158 7,128
Acadia CL153 17 42 151 6,804
Acadia CL153 72 38 137 6,156
Acadia CLJ01 116 44 158 7,128
Acadia CLJ01 46 43 155 6,966
Acadia CLJ01 148 40 144 6,480
Acadia CLXL745 62 223 10,044
Acadia CLXL745 58 209 9,396
Allen CLXL745 389 52 187 8,424
Acadia CLXL745 81 58 209 9,396
Acadia CLXL745 100 54 194 8,716
Acadia CLXL745 55 63 228 10,271
Acadia CLXL745 199 57 204 9,166
Acadia CLXL745 150 54 195 8,782
St. Landry Diamond 120 55 198 8,910
Jeff Davis Jupiter 201 48 171 7,695
Jeff Davis Jupiter 383 40 144 6,480
Jeff Davis Jupiter 101 44 158 7,128
Jeff Davis Mermentau 220 41 148 6,642
Jefferson Davis Mermentau 47 49 176 7,938
St. Landry Mermentau 110 48 173 7,776
Acadia Mermentau 110 56 203 9,124
Vermilion PVL01 99 40 144 6,480
St. Landry PVL01 140 43 155 6,966
Evangeline PVL02 66 41 148 6,642
Allen PVL02 100 36 130 5,832
Acadia PVL02 146 41 148 6,642
Vermilion PVL02 67 43 155 6,966
Vermilion PVL02 72 41 148 6,642
Acadia RT7301 45 57 205 9,234
Acadia RT7301 28 52 187 8,424
Acadia RT7321 FP 159 55 198 8,910
Acadia RT7321 FP 65 53 191 8,586
Concordia RT7521 FP 140 52 188 8,460
Acadia RT7521 FP 40 55 199 8,941
Acadia RT7521 FP 20 46 164 7,381
Acadia RT7521 FP 95 58 207 9,330
Acadia RT7521 FP 84 60 217 9,754
Evangeline Titan 360 58 209 9,396
Acadia XP753 283 55 198 8,910
Acadia XP753 76 57 205 9,234
Acadia XP753 126 55 198 8,910
Acadia XP753 49 63 227 10,206
Acadia XP753 66 62 223 10,044
Vermilion XP753 113 57 205 9,234
Vermilion XP753 46 55 198 8,910
Acadia XP753 40 57 205 9,234
Acadia XP753 20 54 194 8,748
Acadia XP753 25 45 162 7,290
Acadia XP753 155 58 209 9,383
51 184 8,262
1 All yields reported green and rounded.



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