Role of Ni-Mn hybridization in magnetism of martensitic state of Ni-Mn-In shape memory alloys

Extended X-ray Absorption Fine Structure (EXAFS) studies on Ni$_{50}$Mn$_{25+x}$In$_{25-x}$ have been carried out at Ni and Mn K edge as a function of temperature. Thermal evolution of nearest neighbor Ni-Mn and Mn-Mn bond distances in the martensitic phase give a clear evidence of a close relation between structural and magnetic degrees of freedom in these alloys. In particular, the study highlights the role of Ni 3d - Mn 3d hybridization in the magnetism of martensitic phase of these alloys.Comment: Accepted for publication in EP

Groundnut in Southern Africa -Its Status and Research Requirements

The region covered by the Southern African Development Coordination Conference (SADCC) member countries, Angola, Botswana, Lesotho, Malawi, Mozambique, Swaziland, Tanzania, Zambia and Zimbabwe, is very large and diverse. It lies between the Atlantic (1IOE) and Indian Oceans (410E) and stretches from near the equator to about 30··S, and has total area of 4.9 million km2• In elevation, it ranges from sea level to mountains of over 3,500 metres with the major part of the region being on a plateau with an elevation of between 900 and 3,000 meters. Although 95%............

Groundnut - a global perspective: proceedings of an international workshop, 25-29 Nov 1991, ICRISAT Center. India

This workshop brought together scientists working on all different aspects of groundnut research from all parts of the globe. Major papers are presented on: production and trade; regional reviews: donor reports: and special topics including information transfer, processing and products, integrated pest management. genetic resources - including wild species. biotechnology. and crop modeling. Nearly 100 poster abstracts are included. These cover general topics; genetic resources: biotechnology: breeding: crop physiology and nutrition: diseases and insect pests: intercropping and weed management: and processing and products. The proceedings provide a comprehensive record of progress made in groundnut research and production technology in the 1980s. The workshop recommendations, originating from disciplinary group discussions. outline the future research requirements of the crop

Expansion of Groundnut Cultivation in Southeast Asia: A Case Study of Vietnam

Groundnut scenario :in South East Asia (SEA) and East Asia (EA) represents an :interest:ing case Shldy where colmtries such as Ch:ina and Vietnam, :in a short span of time, have occupied the driver's seat of 'the growth engine of grolmdnut :in the world. Asia and Africa.....

New groundnut variety brings hope to poor farmers in India

A new variety of groundnut (ICGV 91114 or ‘Anantha Jyoti’) has generated hope among poor, rain-dependent groundnut farmers in the district of Anantapur in Andhra Pradesh. Among its many benefits, it produces higher yields of fodder and tolerates droughts. The variety was introduced by the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) through the ‘farmer participatory on-farm varietal selection approach’. IFAD supported ICRISAT through a US $1.3 million grant entitled Programme for Farmer-Participatory Improvement of Grain Legumes in Rainfed Asia (2002-2007)

Groundnut and Other Legumes for Crop Diversification in the Central Asia and Caucasus Region

The central asia and caucasus (cac) region consists of the five republics of kazakhstan, kyrgyzstan, tajikistan turkmenistan, and uzbekistan in central Asia and the three republics of armenia, azerbaijan, and georgia in the caucasus. The Landscape of the region is a mixture of mountain, desert and steppe, and the soils are Quite diverse..............

Groundnut research at ICRISAT and its relevance to Asia

Groundnut is currently sown to 21. 7 million ha in more than 100 countries with a total production of 28.5 million tons (FAO 1994). The world groundnut production has bee!). increasing in recent years; the increase in production being largely confined to Asia. An increase in both productivity and area under the crop have contributed to the increased groundnut production in Asia. In 1994, the groundnut productivity in Asia increased by 29.98%, area under the crop by 24.40%, and production by 61.30% over the 1979/81 p,eriod. remains lower than south America (1.83 t ha-1) and north and central America (2.63 t ha-1). Currently, Asia produces 71.6% of the world groundnut production in 63.3% of the area. The leading groundnut producing countries in Asia are China, India, Indonesia, Myanmar, Vietnam, and Thailand......

Groundnut at a glance, pp.121

This book is written in a format of a ready reckoner for quick consultation by the user. It contains all the essential details of different aspects of groundnut improvement and production. The information contained herein is extracted from various formal and informal publications on groundnut. These sources are gratefully acknowledged. For more details and in-depth information, the reader is advised to consult additional literature

Designing farmer-participatory varietal selection in legumes

Farmer-partiCipatory approach in agricultural research and development is gaining increas'ing popularity among researchers, policy makers and develqpment investors. Besides complementing on-station research, it provides an alternate channel to researchers to allow them to reach farmers qUickly with greater acceptance of technological innovations among the farming communities. The farmer-participatory approach ensures that technological innovations are compatible with local agroecological conditions and socio-economic and cultural profiles of the farmers. -Researchers, need to follow c