Descubre y comparte nuestro conocimiento público

Se han encontrado 141 recursos

Resultados de búsqueda

Rao, Idupulapati M.Zeigler, Robert S.Vera, Raúl R.Sarkarung, Surapong[Selection and breeding for acid-soil tolerance in crops: Upland rice and tropical forages as case studies]Selection and breeding for acid-soil tolerance in crops: Upland rice and tropical forages as case studies

The effects of two cropping systems (1 and 2) on grain and fodder yields and nutritive quality of the fodder were studied in a randomized complete block desgin experiment over a period of two cropping years. Crops and crop combinations in system 1 were oat-vetch, wheat-trifolium, teff straw, and ...


Crosse, S.Umunna, N.N.Osuji, P.O.Khalili, H.Tegegne, AzageTedla, A.[Comparative yield and nutritive value of forages from two cereal - legume based cropping systems. 1. Crop yields and the nutritive value of forages]Comparative yield and nutritive value of forages from two cereal - legume based cropping systems. 1. Crop yields and the nutritive value of forages

Cinco poblaciones de maíz tropical del CIMMYT están siendo mejoradas para tolerancia a suelos ácidos mediante selección recurrente de hermanos completos. Se evaluaron tres ciclos de selección en un diseño de parcela dividida, con número variable de repeticiones, en cinco am...


Ceballos, H.Pandey, S.Knapp, EBDuque, J.V.[Tolerancia a suelos ácidos en poblaciones tropicales de maíz del CIMMYT]Tolerancia a suelos ácidos en poblaciones tropicales de maíz del CIMMYT

Drawing on results of a survey of Ugandan farmers who previously hosted bean (Phaseolus vulgaris L.) varietal trials, this paper reports on the adoption of three new bush bean cultivars and assesses the usefulness of post-trial surveys as a methodology for obtaining reliable early feedback on var...


David, S.Wortmann, Charles S.Kasozi, SMugisha-Mutetikka, M[Using trial follow-up surveys to assess varietal adoption: The case of beans]Using trial follow-up surveys to assess varietal adoption: The case of beans

Estado actual del mejoramiento del arroz mediante la utilización de especies silvestres de arroz en CIAT. Este trabajo presenta el uso de especies silvestres de arroz en la obtención de germoplasma mejorado con mayor potencial de rendimiento y una base genética ampliada. Tres especies silvestres ...


Martínez Racines, César PompilioTohme, Joseph M.López Gerena, J.Borrero Correa, Jaime C.McCouch, Susan R.Roca, William M.Chatel, MGuimaraes, Elcio Perpétuo[Estado actual del mejoramiento del arroz mediante la utilización de especies silvestres de arroz en CIAT]Estado actual del mejoramiento del arroz mediante la utilización de especies silvestres de arroz en CIAT

In the mountainous regions of northern Laos, shifting cultivation, or slash-and-burn agriculture, is widely practiced. However, the crop–fallow rotation cycle is becoming shorter owing to forest conservation policies and population pressure, causing loss of productivity that deleteriously affects...


Yamamoto, Y.Oberthür, ThomasLefroy, R.D.B.[Spatial identification by satellite imagery of the crop–fallow rotation cycle in northern Laos]Spatial identification by satellite imagery of the crop–fallow rotation cycle in northern Laos

Bean ( Phaseolus vulgaris check for this species in other resources L.) production in Africa is constrained by edaphic stresses. A pan-African effort, Bean Improvement for Low Fertility in Africa (BILFA), was initiated in 1990 to screen beans for tolerance to several edaphic stresses. In the fir...


Wortmann, Charles S.Lunze, LOchwoh, VALynch, J[Bean improvement for low fertility soils in Africa]Bean improvement for low fertility soils in Africa

This review paper intends to portray current scenario of agricultural productivity through yields and gaps of five major crops; wheat, cotton, rice, maize and sugarcane. The review discusses major constraints, identifies future prospects and makes policy recommendations for enhanced agricultural ...


Aslam, Muhammad[Agricultural productivity current scenario, constraints and future prospects in Pakistan]Agricultural productivity current scenario, constraints and future prospects in Pakistan

Land degradation is a major challenge limiting crop production in Ethiopia. Integrated soil and water conservation is widely applied as a means to reverse the trend and increase productivity. This study investigated the effects of such integrated approaches at two sites, Jeldu and Diga, in Wester...


Erkossa, TekluWilliams, Timothy O.Laekemariam, F.[Integrated soil, water and agronomic management effects on crop productivity and selected soil properties in Western Ethiopia]Integrated soil, water and agronomic management effects on crop productivity and selected soil properties in Western Ethiopia

Selecciona los documentos para visualizarlos

Nombre del archivo Ver recurso