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There has been widespread concern regarding agricultural land expansion through deforestation, and a number of policy options have been proposed to counteract this trend. However, little effort has been made to assess the role of more efficient use of existing agricultural land and technology in ...


Alene, D.Zeller, M.Schwarze, S.Nuryartono, N.[The extent and determinants of production efficiency of farmers in the rainforest margins in Central Sulawesi, Indonesia: Implications for land use and support services]The extent and determinants of production efficiency of farmers in the rainforest margins in Central Sulawesi, Indonesia: Implications for land use and support services

Sixty rice cultivars were planted in 20 m long plant beds 1.20 m wide at two locations: Meta Department where good temperature and humidity conditions exist for blast (Pyricularia oryzae) development, and Cauca Valley where temperature is near optimum but humidity is low. At the Cauca location th...


Gálvez E., Guillermo E.Castaño Zapata, Jairo[Nuevo método para obtener alta infección de Pyricularia oryza en áreas de baja humedad relativa]Nuevo método para obtener alta infección de Pyricularia oryza en áreas de baja humedad relativa
Shah, ManishaVerma, ShilpBharti[Reviving minor irrigation in Telangana: midterm assessment of Mission Kakatiya]Reviving minor irrigation in Telangana: midterm assessment of Mission Kakatiya

Red rice (Oryza satlva L ) has been a serious problem in rice fields for hundreds of years and even now no effective control measure exist. In this study, new approaches were evaluated. Flooding for two weeks prior to seeding IR-22 eliminated 99 percent of the tall variety Bluebonnet 50, which ha...


Cheaney, Robert L.López, Rodrigo L.Doll, Jerry D.[Algunos métodos promisorios para el control de arroz rojo y arroz espontáneo de variedades indeseables]Algunos métodos promisorios para el control de arroz rojo y arroz espontáneo de variedades indeseables

This paper presents information from a participatory breeding project initiated in 1997 at the International Rice Research Institute (IRRI) in collaboration with plant breeders and social scientists from six national agricultural research institutions located in eastern India. The Indira Gandhi A...


Sahu, Ram KumarSahu, Vishwa NathSharma, M.L.Paris, T.R.McAllister, KarenSingh, Rama KantSarkarung, Surapong[Understanding farmers' selection criteria for rice varieties: A case in Madhya Pradesh, Eastern India]Understanding farmers' selection criteria for rice varieties: A case in Madhya Pradesh, Eastern India

There is a limit to the capacity of any breeding program, and the more crosses that are made, the, smaller The size of each cross. The theory of the optimum number of crosses in inbreeding crops is bristly Reviewed. The theory is unsatisfactory in determining the optimum number of crosses, but mo...


Witcombe, John R.Subedi, MaduJoshi, Krishna D.Witcombe, John R.[Towards a practical participatory plant-breeding strategy in predominantly self-pollinated crops]Towards a practical participatory plant-breeding strategy in predominantly self-pollinated crops

This paper describes the agricultural situation in Maramche. Village learners have been participating with Ihe Local initiatives for Biodiversity Research and Development (LI-SIRD), testing improved varieties of paddy rice. Details of the qualities of the new varieties. Qualities preferred by Ihe...


Poudel, Chandra KantaDil Bahadur, K.C.Poudel, Sita[Role of farmers in the improvement of crops: New species of paddy in Maramche]Role of farmers in the improvement of crops: New species of paddy in Maramche

Farmers describe their activities investing in and developing their agricultural output, with details of their production and Suwarna paddy rice (an improved variety).


Bhandari, Jhapdad Bahadur[Role of farmers in selecting crop species]Role of farmers in selecting crop species

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