publication
Effect of ensiling treatment on secondary compounds and amino acid profile of tropical forage legumes, and implications for their pig feeding potential
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/42151
Abstract
BACKGROUND
Smallholders in the tropics depend on local protein supplements to balance pig diets. Thus, various tropical forage legumes are a potential feeding option. Ensiling allows converting forages into a ready-to-feed-out choice, but the lactic acid fermentation…
publication
Variation in ‘Bayou Belle’ and ‘Beauregard’ Sweetpotato Root Length in Response to Experimental Phosphorus Deficiency and Compacted Layer Treatments
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/98264
Abstract
Phosphorus deprivation (−P) reduced sweetpotato storage root length (SRL) regardless of the presence or absence of a compacted layer (CL). The combination of −P and the presence of a simulated compacted layer (+CL) reduced SRL relative to the P-sufficient (+P) control…
publication
Measuring stability and degradability of agroforestry systems
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/82008
Abstract
Tropical agriculture usually deals with severe limitations on management alternatives, arising from a combination of factors such as low-resource farmers, fragile lands, high pest susceptibility, etc. Under these conditions, agroecosystem properties other than productivity, such as stability, sustainability, degradability, etc. are of crucial importance.…
publication
Plant disease epidemiology: A quantitative approach on phytopathology = Epidemiología agrícola: Un enfoque cuantitativo de la fitopatología
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/82014
Abstract
A new technological approach in crop production is required in order to increase a sustainable food production, it keeping the agroecosystem balance. A new approach to do agriculture needs taking advantage of the inter and multidisciplinary participation of different specialities…
publication
Recent progress in cassava varietal improvement in China
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/82399
Abstract
The paper discusses the research progress mainly for the period of 1990-1993. There are three institutions, SCATC, UCRI and GSCRI, which are systematically working on cassava breeding in China. Since the principal constraint to cassava varietal improvement is the lack of genetic variability, the main approach currently used is the evaluation and selection of…
publication
Soil-plant factors and processes affecting productivity in ley farming
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/55065
Publication year
1992
Authors
Rao, Idupulapati M.
Ayarza, Miguel Angel
Thomas, Richard J.
Fisher, Myles J.
Sanz Scovino, José Ignacio
Spain, James M.
Lascano Aguilar, Carlos Eduardo…
publication
Un nuevo enfoque para el mejoramiento de arroz en América Latina
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/81839
Abstract
La crisis ocasionada por la deuda externa ha debilitado los programas nacionales de investigación de arroz en América Latina, y ha aumentado su dependencia de los programas regionales y mundiales del CIAT y del IRRI.Si bien el germoplasma mejorado producido por los IARC ha traído consigo cierto grado de uniformidad genética, también ha brindado inmensos…
publication
Simple sequence repeat marker diversity in cassava landraces: genetic diversity and differentiation in an asexually propagated crop
International Institute of Tropical Agriculture (IITA)
Abstract
Cassava (Manihot esculenta) is an allogamous, vegetatively propagated, Neotropical crop that is also widely grown in tropical Africa and Southeast Asia. To elucidate genetic diversity and differentiation in the crop's primary and secondary centers of diversity, and the forces shaping them, SSR marker variation was assessed at 67 loci in…
publication
Survey data of intra-household decision making and smallholder agricultural production in Northern Uganda and Southern Tanzania
International Institute of Tropical Agriculture (IITA)
Abstract
This article provides a description of intra-household survey data that were collected in Uganda and Tanzania in 2014 and 2015, respectively. The surveys were implemented using a structured questionnaire administered among 585 households in Uganda and 608 in Tanzania. Information on decision making processes in agricultural production was…
publication
Mainstreaming Efficient Legume Seed Systems in Eastern Africa: Challenges, opportunities and contributions towards improved livelihoods
International Center for Agricultural Research in the Dry Areas (ICARDA)
Abstract
This technical paper begins with an introduction to grain legumes and their importance in Eastern Africa, followed by trends in production and productivity, variety development, release and promotion. It proposes and describes 12 basic principles necessary to mainstream legume seed systems (and thereby legume production…
publication
Phenotypic approaches to drought in cassava: review
International Institute of Tropical Agriculture (IITA)
Abstract
Cassava is an important crop in Africa, Asia, Latin America, and the Caribbean. Cassava can be produced adequately in drought conditions making it the ideal food security crop in marginal environments. Although cassava can tolerate drought stress, it can be genetically improved to enhance productivity in such environments. Drought adaptation studies in over three decades in cassava have identified relevant mechanisms…
publication
Arbuscular mycorrhizal fungi in the East African Highland banana cropping systems as related to edapho-climatic conditions and management practices: case study of Rwanda
International Institute of Tropical Agriculture (IITA)
Abstract
Root colonization, soil population density and diversity of arbuscular mycorrhizal (AM) fungi were assessed in 188 banana fields in contrasting soil types across five eco-regions in Rwanda (Butare–Gitarama, Gashonga, Bugarama, Kibungo, Ruhengeri). Root colonization was observed in all banana plants,…
publication
Role of biological nitrogen fixation in legume based cropping systems; a case study of West Africa farming systems
International Institute of Tropical Agriculture (IITA)
Abstract
Nitrogen (N) has been gradually depleted from West African soils and now poses serious threats to food production. Many ways of increasing N supply (e.g. judicious use of inorganic fertilizers and nitrogen-fixing plants) have been tried in West African farming systems. Herbaceous and woody legumes commonly contribute 40 70 kg N ha?1 season. This represents…
publication
Nutrient flows from harvested banana pseudostems
International Institute of Tropical Agriculture (IITA)
Abstract
Management of harvested (senescent) banana pseudostems has implications for efficiency of nutrient use for sole cropped as well as intercropped bananas. Two studies were conducted on aspects of nutrient flows from senescent pseudostems. Sixty one and 55% of the initial N and P, respectively, in standing senescent pseudostems were determined to be translocated to attached growing pseudostems at six weeks after harvest.…
publication
Inheritance of resistance to fusarium wilt in pigeonpea (Cajanus cajan (L.) Millsp.)
International Crops Research Institute for the Semi-Arid Tropics (ICRISAT)
Abstract
The inheritance of resistance in pigeonpea (Cajanus cajan (L.) Millsp.) to fusarium wilt (Fusarium udum Butler) was studied in crosses between a resistant line ICP 8863 and two susceptible (ICP 2376 and LRG 30) pigeonpea lines. The parents, F1, F2 and backcross populations were screened for resistance to F. udum in a wilt-sick nursery at the ICRISAT Center. Resistance…
