Pod Maturity in 2013 From Virginia Tech Courtesy of Dr. Balota
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Collapse ▲This morning we podblasted several samples from our research farm (those with a field number assigned), and from two farmer’s fields in Southampton County, Mr. Warrell and Porter. We sampled 3 ft in each field and also estimated yield in those fields. Commentaries are included under each picture.
Image 1. This field was planted on May 3 and it probably needs a full month to harvest. Some pods will probably be lost, the brown ones at the right, but the majority of the crop right now seems to be in light yellow and white pods. Estimated yield for this field is 5900 lb/A.
Image 2. This field was planted a week later than the previous and still not much difference in terms of pod color. Estimated yield is 5742 lb/A.
Image 3. Mr. Porter planted on May 12 and his crop looks a little more mature than our research plots; still he is looking at least 2-3 weeks before scouting again. I obtained a yield estimate for his field of 4088 lb/A.
Image 4. Mr. Worrell’s peanuts are not much different than Mr. Porter’s even though they were planted almost 2 weeks earlier.
Image 5. Finally, a May 29 planting at TAREC with Wynn, the newly released cultivar.
| 2012 | 2013 | |||||||||
| Month | AVG Tair | Max Tair | Min Tair | AVG Tsoil | Heat Units | AVG Tair | Max Tair | Min Tair | AVG Tsoil | Heat Units |
| May | 70 | 82 | 59 | 72 | 429 | 67 | 78 | 48 | 67 | 355 |
| June | 73 | 86 | 61 | 76 | 941 | 75 | 86 | 66 | 77 | 935 |
| July | 81 | 93 | 72 | 84 | 1715 | 79 | 90 | 70 | 81 | 1642 |
| August | 77 | 88 | 69 | 80 | 2358 | 75 | 86 | 66 | 78 | 2191 |
This year, we are almost 200 heat units behind last year. With the exception of June, all other months until now were cooler than last year. In particular May was cool with much cooler soil and night temperatures than in previous years. Probably this, combined with frequent flooding in some fields, indeed “washed out” the benefit of early May versus late May planting. Then in June, when temperatures of soil and air were warmer in 2013 than 2012, late planted plants could catch up with those planted earlier.
Keep in mind that Bailey needs 2590 heat units to mature and Sugg is at least one week later than Bailey.
I will continue to keep you informed on the peanut maturity progress.
Article first appeared as North Carolina Peanut Note (PNNC-2013-077)