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Both nymphal and adult spittlebugs (Hemiptera: Cercopidae) cause serious economic damage to susceptible brachiariagrass [genus Biachiaria (Trin.) Griseb], pastures in tropical America. Both life stages are xylem feeders: nymphs feed primarily on roots and stems, whereas the adults feed mainly on ...


Cardona Mejía, CésarMiles, John W.Zuniga, GSotelo, G.[Independence of Resistance in Brachiaria spp. to Nymphs or to Adult Spittlebugs (Hemiptera: Cercopidae): Implications for Breeding for Resistance]Independence of Resistance in Brachiaria spp. to Nymphs or to Adult Spittlebugs (Hemiptera: Cercopidae): Implications for Breeding for Resistance

Apomixis—asexual reproduction through seed—provides a convenient means to faithfully propagate even heterozygous genotypes and hence exploit heterosis, in several naturally apomictic, warm-season forage grasses. Inheritance of apomixis has been shown to be monogenic dominant in at least four econ...


Miles, John W.[Apomixis for cultivar development in tropical forage grasses]Apomixis for cultivar development in tropical forage grasses

Brachiaria grasses are sown in tropical regions around the world, especially in the Neotropics, to improve livestock production. Waterlogging is a major constraint to the productivity and persistence of Brachiaria grasses during the rainy season. While some Brachiaria cultivars are moderately tol...


Jiménez Serna, Juan de la CruzCardoso Arango, Juan AndrésLeiva, Luisa F.Gil, JuanitaForero, Manuel G.Worthington, MargaretMiles, John W.Rao, Idupulapati M.[Non-destructive phenotyping to identify brachiaria hybrids tolerant to waterlogging stress under field conditions]Non-destructive phenotyping to identify brachiaria hybrids tolerant to waterlogging stress under field conditions
Hernández, Luis MiguelSotelo, GuillermoBonilla, Ximena P.Álvarez, ElizabethMiles, John W.Worthington, Margaret[Phenotyping Brachiaria genotypes to assess Rhizoctonia resistance by comparing three inoculum types]Phenotyping Brachiaria genotypes to assess Rhizoctonia resistance by comparing three inoculum types

Arango, JacoboNuñez, JonathanMoreta, DaniloKarwat, HannesArévalo, AshlyIshitani, ManabuChavez, LuciaMiles, John W.Subbaraoa, Guntur V.Peters, MichaelRao, Idupulapati M.[Phenotyping of a Bi-Parental brachiaria humidicola population for its biological nitrification inhibition potential]Phenotyping of a Bi-Parental brachiaria humidicola population for its biological nitrification inhibition potential
Wenzl, PeterArango Vélez, AdrianaChávez, Alba L.Buitrago González, M.E.Patiño, GMMiles, John W.Rao, Idupulapati M.[Development and validation of a hydroponic screening method to identify acid soil-adapted genotypes of the tropical forage grass Brachiaria]Development and validation of a hydroponic screening method to identify acid soil-adapted genotypes of the tropical forage grass Brachiaria

Spittlebugs (Homoptera: Cercopidae) are important pests of forage grasses in the genus Brachiaria (Trin.) Griseb. throughout the neotropics. Results of recurrent selection on resistance to spittlebugs in a synthetic brachiariagrass population are reported. The population was synthesized by recomb...


Miles, John W.Cardona Mejía, CésarSotelo, Guillermo[Recurrent selection in a synthetic brachiariagrass population improves resistance to three spittlebug species]Recurrent selection in a synthetic brachiariagrass population improves resistance to three spittlebug species
Rao, Idupulapati M.Miles, John W.García, R.Ricaurte Oyola, José Jaumer[Selección de híbridos de Brachiaria con resistencia al aluminio]Selección de híbridos de Brachiaria con resistencia al aluminio

We summarize progress made towards the development of tools and knowledge that aid the genetic improvement of aluminum (Al) resistance in two of CIAT’s (International Center for Tropical Agriculture) commodity crops; common bean (Phaseolus vulgaris L.) and brachiariagrasses (Brachiaria spp. Grisi...


Rao, Idupulapati M.Wenzl, PeterArango Vélez, AdrianaMiles, John W.Watanabe, ToshihiroShinano, TakuroOsaki, MitsuruWagatsuma, TadaoManrique, GermánBeebe, Stephen E.Tohme, Joseph M.Ishitani, ManabuRangel Becerra, Andrés FelipeHorst, Walter J.[Advances in developing screening methods and improving aluminum resistance in common bean and brachiaria]Advances in developing screening methods and improving aluminum resistance in common bean and brachiaria

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