Submitted to: Proceedings of the Texas Pepper Conference
Publication Type: Abstract Only
Publication Acceptance Date: September 26, 2007
Publication Date: November 7, 2007
Citation: Fery, R.L., Thies, J.A. 2007. TigerPaw-NR, a New, High Yielding, Root-knot Nematode Resistant, Highly Pungent, Habanero-type Pepper. Proceedings of the Texas Pepper Conference, November 7-9, 2007. Weslaco, TX. 11:9. Technical Abstract: The USDA-ARS has released a new Habanero-type pepper (Capsicum chinense Jacq.) cultivar named TigerPaw-NR. The new cultivar is the product of a backcross breeding program to transfer a dominant root-knot nematode resistance gene from the Scotch Bonnet accession PA-426 into the Habanero-type accession PA-350. TigerPaw-NR was derived from a single BC4F4 plant grown in 2002. TigerPaw-NR is homozygous for a dominant gene conditioning a high level of resistance to the southern root-knot nematode [Meloidogyne incognita (Chitwood) Kofoid and White], the peanut root-knot nematode [M. arenaria (Neal) Chitwood, race 1], and the tropical root-knot nematode [M. javanica (Treub) Chitwood]. TigerPaw-NR has a compact plant habit and produces attractive lantern-shaped, orange-colored fruit. The results of three replicated field studies conducted at Charleston, SC, indicate that the fruit and yield characteristics of TigerPaw-NR are comparable to those of currently available Habanero-type cultivars. Marketable yield ranged from 22,353 kg/ha (four harvest test) to 37,799 kg/ha (eight harvest test). A typical fruit weighs 7.8 g, is 2.7 cm wide x 4.4 cm long, and is extremely pungent (348,634 Scoville heat units). Root-knot nematodes are major pests of peppers in the United States, and all Habanero-type cultivars currently available to commercial growers and home gardeners are susceptible. The root-knot nematode resistant TigerPaw-NR is recommended for use by both commercial growers and home gardeners. The USDA-ARS has applied for a Plant Variety Protection Certificate for TigerPaw-NR and is currently seeking a licensee to market the cultivar.