Resultados de búsqueda - S*

Relative roles of wind, crop seeds, and cattle in the dispersal of Striga species por Berner, D.K., Cardwell, K., Faturoti, B., Ikie, F., Williams, O.

Materias: “…seeds…”
Enlace del recurso

Determination of optimum sett size for white guinea yam (Dioscorea rotundata Poir.) seed yam production: trends in sprouting in the presprout nursery and field performance por Gyansa-Ameyyaw, C.E., Hahn, S.K., Álvarez, M.N., Doku, E.V.

“…Three natural groups patterned along the various phases of the sigmoid curve, within which the classes did not perform differently were evident at 26 days after planting (DAP), for sets at the leafy-and leafless-shoots stage. …”
Enlace del recurso

Assessing the poverty consequences of contract farming: some methodological considerations por Jabbar, M.A.

Enlace del recurso

Preliminary evaluation of secondary Musa polyploids at IITA breeding station por Ortíz, R., Vuylsteke, D.R.

“…Comparisons between secondary tetraploids and secondary triploids showed that the secondary tetraploids generally had lower yields than secondary triploids. …”
Enlace del recurso

Residue fractionation and decomposition: the significance of the active fraction por Vanlauwe, Bernard, Dendooven, Luc, Merckx, Roel

Materias: “…soil…”
Enlace del recurso

Stepwise approach to alley cropping technology development and transfer in the forest zone of Cameroon por Tonye, J., Duguma, B., Tiki-Manga, T.

“…The second step was the on-station tree screening activity from which Leucaena leucocephala, Gliricidia sepium, Calliandra calothyrsus and Paraserianthes falcataria were identified as promising tree species. …”
Enlace del recurso

Effect of agroforestry woody species on earthwarm activities and physicochemical properties of warm casts por Kang, B., Akinnifesi, F.K., Pleysier, J.L.

Materias: “…soil…”
Enlace del recurso

Importation, releases, and establishment of Neochetina spp. (col., curculionidae) for the biological control of water hyacinth, Eichhomia crassipes CLil., Pontederiaceae), Benin, West Africa por Thielen, R., Ajuonu, O., Schade, V., Neuenschwander, Peter, Adite, A., Lomer, C.

“…By October 1993,N. eichhorniae had spread up to 20 km from some release sites.Neochetina bruchi Hustache was imported in 1992. …”
Enlace del recurso

Thematic mapper vegetation indices for determining soybean and corn growth parameters por Thenkabail, Prasad S., Ward, A.D., Lyon, J., Merry, C.J.

Materias: “…soybeans…”
Enlace del recurso

Landsat 5 thematic mapper models of soybean and corn crop characteristics por Thenkabail, Prasad S., Ward, A.D., Lyon, J.

Materias: “…soybeans…”
Enlace del recurso

Impacts of agricultural management practices on soybean and corn crops evident in groundtruth data and thematic mapper vegetation indices por Thenkabail, Prasad S., Ward, A.D., Lyon, J.

Materias: “…soybeans…”
Enlace del recurso

Assessment of banana weevils in East African highland banana systems and strategies for control por Gold, C., Speijer, P., Rukazambuga, N., Mararmura, E.B.

Enlace del recurso

The role of technology in agricultural intensification: the evolution of maize production in the northern Guinea savanna of Nigeria por Smith, J., Barau, A.D., Goldman, A., Mareck, J.H.

Enlace del recurso

Effect of time to first shoot removal and the amount of shoots removed on the yield and quality of cassava leaves and tubers por Simwambana, M., Ferguson, T.U., Osiru, D., Hahn, S.K.

“…SR8, SR14, SR20, and SR52, and five different amounts of shoot harvested: no shoot removed, tip only, tip and two fully developed leaves, tip and five fully developed leaves, and plucking the youngest leaves, excluding the apical shoot (SR1, SR2, SR3, SR4, and SR5), were imposed at 8 WAP and repeated after every 8 weeks for 52 weeks. …”
Enlace del recurso

Quantitative methods for assessing the severity of anthracnose on yam (Dioscorea alata) por Simons, S.A., Green, K.

“…Two methods (the individual leaf method and whole plant method) for the quantitative assessment of the incidence and severity of anthracnose (Colletotrichum gloeosporioides on yam were developed and evaluated in the field over 3 growing seasons and are proposed for use in epidemiological studies. …”
Enlace del recurso

The effect of laval diet on the growth and development of Sesamia calamistis Hampson (Lepidoptera: Noctuidae) and Eldana saccharina Walker (Lepidoptera: PYralidae) por Shanower, T.G., Schulthess, F., Bosque Pérez, N.A.

Materias: “…survival…”
Enlace del recurso

PYrenophora triticirepentis as a component of the fungal flora of winter wheat seed in New York por Schilder, A.M., Bergstrom, Gary Carlton

Materias: “…seeds…”
Enlace del recurso

Infection of wheat seed by Pyrenophora triticirepentis por Schilder, A.M., Bergstrom, Gary Carlton

Materias: “…seeds…”
Enlace del recurso

Persistence and recovery of introduced Rhizobium ten years after inoculation on Leucaena leucocephala grown on an Alfisol in southwetern Nigeria por Sanginga, N., Danso, S.K.A., Mulongoy, K., Ojeifo, A.A.

Materias: “…soil fertility…”
Enlace del recurso

Breeding for Striga hemonthica tolerant openpollinated maize varieties in Africa por Kim, S.K.

Materias: “…striga hermonthica…”
Enlace del recurso