48, AQ, and PI 53009, respectively) were also susceptible

Cucumis metulifer strategy towards the evaluation of exhibited moderate resistance and supported 323 eggs per gram fresh root. Seeds from the two Nematador plants had been collected separately and 24 progeny of each were tested in an extra greenhouse study in 2010, exactly where some M. incognita reproduction was observed. In 2011, despite the results from prior years, both Nematador lines had been transplanted into 90-cm diameter field microplots, together with cayenne cultivars `Mesilla' (RKN-susceptible), `Large Red Thick' (Nematador parent), and `Carolina Cayenne'(resistant handle). Half the plots had been pre-infested with M. incognita. Plants were fertilized and irrigated as necessary all through the season. Pod count, total pod weight, and RKN eggs/g dry root had been recorded at harvest. 1 Nematador isolate showed the least RKN reproduction (four,533 eggs/g dry root) in comparison to susceptible Mesilla (78,689 eggs/ g dry root). Pod yield and weight had been equivalent amongst infested and.48, AQ, and PI 53009, respectively) were also susceptible with GI ranging from four.five to 4.7. Twelve Cucurbita maxima x C. moschata commercial squash hybrid rootstocks had GI ranging from 4.two for `Carnivor' to 5.0 for Jing Xin No.three. The normal Cucurbita maxima x C. moschata hybrid `Strong Tosa' also was hugely susceptible with GI=4.9. Field test, Charleston, SC. The scion `Athena' melon (C. melo) was grafted on eight various cucurbit rootstocks and evaluated within a field that was hugely infested with M. incognita. Rootstocks of Benincasa hispida, Cucurbita maxima x C. moschata, Cucurbita argyrosperma, C. melo, C. maxima, and Cucurbita ficifolia have been all highly susceptible to RKN with numbers of M. incognita eggs per gram fresh root ranging from 659 for B. hispida to six,793 for C. argyrosperma. Cucumis metulifer exhibited moderate resistance and supported 323 eggs per gram fresh root. Therefore, C. metulifer was the only cucurbit rootstock evaluated in our tests that exhibited resistance to M. incognita. Currently, we are evaluating all of the C. metulifer PIs in the USDA Plant Introduction collection in an effort to recognize the most resistant and vigorous accessions for use in creating RKN-resistant rootstocks for melon. USE OF PROPAGATED PLANT CUTTINGS TO ACCELERATE SCREENING CAYENNE PEPPER FOR RESISTANCE TO MELOIDOGYNE INCOGNITA. Thomas, Stephen1, J.M. Beacham1, and P.W. Bosland2. 1Department of Entomology, Plant Pathology and Weed Science, P.O. Box 30003 MSC 3BE; and 2 Department of Plant and Environmental Sciences, P.O. Box 30003, MSC 3Q, New Mexico State University, Las Cruces, NM 88003. Applying sodium hypochlorite to assess egg production per unit of root weight in young plants could be the most sensitive, fast, and quantitative method for screening breeding lines for resistance to southern root-knot nematode (Meloidogyne incognita). However, a limitation to this approach is the fact that it destroys these really plants identified as desirable for further investigation. In 2009, a greenhouse study was conducted to assess and enhance resistance to M. incognita in 3 NMSU cayenne chile (Capsicum annuum) cultivars, `NuMex Nematador' (96 plants) and two accessions of `NuMex Las Cruces' (79 78 plants each). Person plants from every single cultivar and from the regular resistant handle `Carolina Cayenne' have been inoculated with 2,500 M. incognita eggs per plant and evaluated 42 days later. Prior to bleach extraction of roots, cuttings were propagated from every single plant.