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Category Posts for Physiology

29
Jun
2015
Rice Research Verification Program Update for June 29, 2015
Author: Ralph Mazzanti, Rice Research Verification Coordinator

and Ron Baker, Rice Research Verification Program Coordinator South Arkansas: All fields progressing well with good heat units moving them along. In some cases maturity is a few days earlier with a current DD-50. Five conventional fields (Desha, Monroe, Lonoke, Phillips, and the north half of Lee County) did not require any mid-season nitrogen applications. […]

19
Jun
2015
Rice leaf blast now reported in four Arkansas counties
Author: Yeshi Wamishe, Extension Rice Plant Pathologist

— and Jarrod Hardke, Extension Rice Agronomist The concerns for blast disease have increased the last three years with wet and cold early spring conditions and as planting dates have been pushed later. This year southern Louisiana has reported blast early in the season, Texas reported in three counties, and Arkansas has reported in four counties (Desha, […]

17
Jun
2015
Arkansas Peanut Crop Update: Acres Planted and Checking for Nodulation
Author: Travis Faske, Extension Plant Pathologist

The 2015 peanut crop has been planted and the total acres are estimated at 17,500, which is much higher than earlier estimates and ~1,000 acres less than the 2013 crop.  This year more peanuts were planted in Mississippi Co.; however, the total acres per county has yet to be finalized.  Again this year, the two […]

15
Jun
2015
Rice Research Verification Program Update for June 15, 2015
Author: Ron Baker, Rice Research Verification Program Coordinator

South Arkansas:  Eight out of nine fields are now flooded and are looking good.  The Jefferson Co. field is waiting on levee gates and should be sprayed, fertilized, and the flood started in the next few days.  Seeing some rice water weevil scarring but no fields reaching threshold for treatment.  The welcomed heat units have […]

12
Jun
2015
Soybean Research Verification Program Update for June 12, 2015
Author: Chris Grimes, Program Associate - Soybean/Wheat Verification Coordinator

General The northern half of the state has made great strides in getting soybeans planted this week. We were able to get three verification fields planted and hopefully the remainder will be planted over the weekend or early next week. The verification fields that have been planted vary from VE to R3 growth stages. Irrigation […]

05
Jun
2015
Soybean Research Verification Program Weekly Update – June 5, 2015
Author: Chris Grimes, Program Associate - Soybean/Wheat Verification Coordinator

General Rainfall across the state ranged from 3 inches to trace amounts. The last few days growers have been able to get back into the fields and continue preparations. Hopefully the dry weather will continue and we can get the remainder of the fields planted over the weekend and next week. The verification fields that […]

22
May
2015
Soybean Research Verification Program Update for May 22, 2015
Author: Chris Grimes, Program Associate - Soybean/Wheat Verification Coordinator

General The rainfall across the state over last weekend has kept the fieldwork to a minimum this week. As a result of that we haven’t had any more verification fields planted this week. The fields that have been planted are off to a good start and progressing well. We have one field that is at […]

18
May
2015
Rice Research Verification Program Update – May 15, 2015
Author: Jarrod Hardke, Rice Extension Agronomist

South Arkansas: Three fields Chicot, Desha and Arkansas Counties have received N-STaR fertilizer applications and are being flooded. The Jefferson County field is cracking and all other fields are from 4 leaves to tillering stage. A low uneven hybrid stand (1 leaf – tillering) in Chicot County made it difficult for management decisions. Pre-emergence herbicides […]

18
May
2015
Why Peanut Seedlings Have Yellow Leaves
Author: Travis Faske, Extension Plant Pathologist

There have been a few reports of peanut seedlings emerging with yellow or light-brown leaves in a few fields across the state. There are a few reasons for this leaf discoloration; planting seed into cool (<65ºF), wet soils that slows emergence, planting depth, cold weather injury, and prolonged cloudy, rainy conditions during emergence that limits […]

11
May
2015
It’s time to sidedress grain sorghum
Author: Leo Espinoza, Associate Professor & Extension Soil Scientist

If your grain sorghum emerged about 30 days ago, it is entering into the growing point differentiation or reproductive stage. Around this time, the total number of leaves is being defined and nitrogen needs to be in place as the plant will start using nitrogen rapidly. Grain sorghum seems to be more sensitive than corn […]