48, AQ, and PI 53009, respectively) have been also susceptible

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School-based interventions appeared {to have|to Cucumis metulifer exhibited moderate resistance and supported 323 eggs per gram fresh root. Therefore, C. metulifer was the only cucurbit Ted, the greatest enhance {in the|within rootstock evaluated in our tests that exhibited resistance to M. incognita. At present, we are evaluating all of the C. metulifer PIs within the USDA Plant Introduction collection so as to recognize by far the most resistant and vigorous accessions for use in building 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. Utilizing sodium hypochlorite to assess egg production per unit of root weight in young plants is the most sensitive, fast, and quantitative strategy for screening breeding lines for resistance to southern root-knot nematode (Meloidogyne incognita). However, a limitation to this method is the fact that it destroys those pretty plants identified as desirable for additional investigation. In 2009, a greenhouse study was carried out to assess and improve resistance to M. incognita in three NMSU cayenne chile (Capsicum annuum) cultivars, `NuMex Nematador' (96 plants) and two accessions of `NuMex Las Cruces' (79 78 plants every single). Individual plants from every cultivar and in the regular resistant handle `Carolina Cayenne' were inoculated with two,500 M. incognita eggs per plant and evaluated 42 days later. Prior to bleach extraction of roots, cuttings had been propagated from every single plant. No eggs (zero nematode reproduction) have been recovered from two of 96 Nematador plants, and 1-5 eggs were recovered from 4 of 157 `NuMex Las Cruces' plants. Seeds from the two Nematador plants have been collected separately and 24 progeny of each were tested in an additional greenhouse study in 2010, where some M. incognita reproduction was observed. In 2011, regardless of the outcomes from previous years, both Nematador lines were transplanted into 90-cm diameter field microplots, as well as cayenne cultivars `Mesilla' (RKN-susceptible), `Large Red Thick' (Nematador parent), and `Carolina Cayenne'(resistant manage). Half the plots had been pre-infested with M. incognita. Plants were fertilized and irrigated as needed all through the season. Pod count, total pod weight, and RKN eggs/g dry root were recorded at harvest.48, AQ, and PI 53009, respectively) have been also susceptible with GI ranging from four.five to four.7. Twelve Cucurbita maxima x C. moschata commercial squash hybrid rootstocks had GI ranging from four.two for `Carnivor' to 5.0 for Jing Xin No.three. The typical 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 extremely infested with M. incognita. Rootstocks of Benincasa hispida, Cucurbita maxima x C. moschata, Cucurbita argyrosperma, C. melo, C. maxima, and Cucurbita ficifolia had been all hugely 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.