What is in this article?:
- Cotton advancements flowing through technology pipeline
- GM insect resistance
- Cottonseed companies have a technology-filled pipeline with improved lint yields and fiber quality, plus better insect and weed control.
- With the loss of the Temik insecticide, Bayer CropScience and Monsanto have technology in the pipeline to target the root knot nematode.
- Bayer is investigating conventional breeding and transgenic routes to improve water use efficiency, says Kenny Melton.
GM insect resistance
Genetically-modified insect resistant Bollgard III is in the pipeline which would add the VipCot gene developed by Syngenta to the current Bollgard II formula for improved Lepidopteron pest control. Adding the Vipcot gene to Bollgard II offers a new mode of action and protein to help avoid resistance in the bollworm, budworm, and Lepidopteron families to Bollgard and other proteins.
On water, the company is exploring drought tolerance and water use efficiency from several angles including a transgenic route. Monsanto has several strong leads.
On Pima cotton, Monsanto currently has about 1 percent of the Arizona Pima extra-long staple cotton market (10,000 total acres statewide this year). The company has several Pima Roundup Ready Flex lines in development for California and Arizona which are in University of California and University of Arizona field trials this year.
One line includes a tolerance to Race 4 fusarium wilt, a soil-based fungus and a growing threat in San Joaquin Valley cotton fields. The Race-4 tolerant Pima variety could be commercially available in 2013.
Bayer’s Kenny Melton covers the Southern High Plains of Texas, New Mexico, Arizona, and California. He shared information about upcoming Upland varieties in the company’s Stoneville and FiberMax cotton lines, plus research underway.
This year, Bayer sold a limited amount of its new FM 2989GLB2 variety; a mid-to-full season cotton with excellent fiber quality. It will be widely available next year. The GLB2 gene stack includes GlyTol, LibertyLink, and Bollgard II.
“FM 2989GLB2 was developed from the FM 989 background which has performed well in parts of Arizona and California,” Melton said.
The experimental variety BX 1244GLB2 comes from the FM 1740B2F background, yet features increased lint yield and longer fiber than FM 1740B2F. The variety could have limited commercial release in 2012.
“FM 1740B2F has a broad application across the Cotton Belt and has performed well from the East Coast to the West Coast,” Melton said. “Early indications are that BX 1244GLB2 will have wide adaption across the Cotton Belt.”
Bayer is targeting RKN-tolerant varieties. With the loss of Temik, a Bayer product, Bayer has fast tracked its RKN research. While the company currently offers two varieties in the Stoneville brand with good RKN tolerance – ST 5458B2RF and ST 4288B2F – they are aggressively working to develop more varieties with different maturities and areas of adaptation.
BCS is investigating conventional breeding and transgenic routes to improve water use efficiency. Research is underway at Bayer’s breeding research stations in Shafter, Calif., Maricopa, Ariz., and Lubbock, Texas.
On insect tolerance, Bayer plans to launch its TwinLink dual Bt technology in 2013 if regulatory approvals move forward as anticipated. TwinLink features two insect resistant genes for effective management of Lepidopteron pests. Bayer plans to introduce TwinLink varieties in each Cotton Belt region.
On the weed front, Bayer is researching a gene to provide cotton plants with a tolerance to HTTP-type herbicides. This family of herbicides includes materials that can offer post-emergence and pre-emergence weed control. This will provide growers with another tool to manage weeds and help avoid herbicide-resistant weeds.
This year, BCS has 26 percent of the Arizona Upland cotton market including 16 percent in Stoneville and 10 percent in FiberMax. Monsanto has a 67 percent market share. Dow AgroSciences (Phytogen) has a 7 percent share, according to the USDA’s Agricultural Marketing Service.