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Cassava breeding at IITA: Conference Proceedings of the Third Symposium of the International Society for Tropical Root Crops held at IITA, Ibadan, Nigeria, 29 December, 1973
(1977-11)The breeding objectives in the Root and Tuber Improvement Programme of the International Institute of Tropical Agriculture (IITA) were laid down. Basic considerations in cassava breeding were reviewed and discussed. The paper attempts to produce a cassava breeding system applicable on a world-wide basis and describes the present state and the future development of cassava breeding. -
Challenges, opportunities and strategy for cassava subsector development in Nigeria
(2007)Nigeria has substantial economic potential in its agricultural sector. However, despite the importance of agriculture in terms of employment creation, its potential for contributing to economic growth is far from being fully exploited. The sector's importance fluctuates with any rise and fall in oil revenue and has remained stagnant over the past ten years. The contribution of the manufacturing sector to the GDP declined over the same period. Inappropriate macroeconomic and sector policies perpetuated ... -
Application of DNA markers in maize
(1999) -
Application of DNA markers in yam
(1999) -
Germplasm characterization at IITA
(1999) -
Breeding for fungal resistance in Musa
(1999)Bananas and plantains are both important staple foods and cash crops for millions of people. Bananas are large perennial herbs of the genus Musa. Cultivated bananas are primarily triploids (3x) derived from intraspecific and interspecific crosses of two diploid species Musa acuminata Colla (Ma.) and Musa balbisiana Colla (M.b.) (Simmonds, 1995). In West and Central Africa, plantains provide more than 25% of the carbohydrate requirements for over 70 million people (Vuylsteke et al., 1993). In Uganda, ... -
Explaining the Failure in Agricultural production in subSaharan Africa
(2003)This paper examines changes in agricultural productivity in 10 Subsaharan countries. The relative performance of agricultural sector was gauged using data envelopment analysis. From a panel data set of the 10 countries which included the 28-year period 1972-1999, mathematical programming methods were used to measure Malmquist indexes of total factor productivity. It was found that, during that period, total factor productivity have experienced a negative evolution in sample countries. A decomposition ... -
The role of GIS in the development and targeting of maize germplasm to farmers in West and Central Africa
(2003)Maize (Zea mays L) is cultivated under a broad range of climatic conditions in West and Central Africa (WCA). For the purpose of germplasm evaluation, maize researchers in the subregion loosely stratified the diverse environments into four agroecological zones based on their knowledge and experience rather than on quantitative studies involving climatic data. Recent advances in the development of digital spatial databases and geographic information systems (GIS) have provided unprecedented ... -
Advances in yam and cassava nematology research at IITA
(2003)Progress in pest management on cassava (Manihot esculenta) in Africa has witnessed remarkable achievements over recent years in the management of African cassava mosaic virus, cassava mealy bug, cassava green mite and overall germplasm improvement for yield improvements. From the scant information available, root-knot nematodes appear to pose potentially serious constraints to cassava production across Africa. Under heavy infection, 98 % yield losses have been reported and in a survey in Uganda, ... -
Economic gains from maize research in West and Central Africa: an overview
(2003)Agricultural research by national systems and international institutes has contributed to the increase in maize production and productivity in West and Central Africa (WCA) over the last three decades. This subregion accounted for about 43% of maize production in sub-Saharan Africa (SSA) from 1998-2000, compared with 17% 30 years ago (1968-1970). Yields improved by 41% from an average of 858 kg ha"' in 1970 to about 1210 kg ha"' in 2000. During the period under review, a large number of disease ... -
Evaluation de nouvelles varieties digname en Cote dIvoire: bilan de trois annees dexperience avec des genotypes ameliores par lIITA
(2003)Assessment of new yam varieties in Côte d'Ivoire : results of three experiments years with improved genotypes by IITA The most important food crop in the Ivory Coast, yam, is cultivated in a traditional system with low productivity. In order to suffice the needs of the growing population the introduction of new technologies increasing the production of yam is mandatory. One way suggested here is the introduction of new improved varieties. The aim of this project was to identify promising varieties ... -
Promoting maize technology transfer in West and Central Africa: a networking approach
(2003)The major thrust of the West and Central Africa Collaborative Maize Research Network (WECAMAN) has been on the development of early and extra-early maize varieties and associated agronomic practices. Adoption of these varieties and, to some extent, the complementary agronomic practices by farmers has led to the expansion of maize production in the sub region. However, the rate of adoption of the technologies has been constrained by several factors, including high price and non-availability of ...