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Wheat Diversity and Productivity in Indian Punjab After the Green Revolution AgEcon
Smale, Melinda; Singh, Joginder; Di Falco, Salvatore; Zambrano, Patricia.
The Punjab of India is an historical source of key wheat genetic resources in national and global plant breeding, and a focus of concerns about the abandonment of local varieties during the Green Revolution. Much of the wheat area in Punjab was already planted with earlier products of modern plant breeding programs when the Green Revolution began. These cultivars were more genetically similar and less productive than the semi-dwarf wheat varieties that succeeded them. We define, summarize and test indices of variety change and genetic diversity for the modern wheat varieties released and grown in Indian Punjab during the post-Green Revolution period. The first is the area-weighted average of varieties grown, which measures the rate of variety change,...
Tipo: Conference Paper or Presentation Palavras-chave: Wheat; Genetic diversity; Indian Punjab; Productivity; Crop Production/Industries; Q12; Q57.
Ano: 2006 URL: http://purl.umn.edu/25794
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Reformulating Policies for Integrated Land and Water Use for Sustainable Agricultural Development: A Case of Punjab State AgEcon
Bhullar, A.S.; Sidhu, R.S.; Singh, Joginder.
Land and water are the natural partners in the process of agricultural development. Their coordinated use is essen tial for long-term optimization of economic as well as social welfare. Deliberately planned or policy induced divergence from integrated land and water use management may bring short-term rewards but normally squeezes the long-term sustainability of growth as well as of resources. The Indian Punjab, known as the Heartland of Green Revolution, is a classic example of this. Punjab has depleted its land and water resources due to lack of their integrated use. The production pattern followed was neither commensurate with soil capabilities nor with water availability not to talk about their integrated capacities. The production, inputs use,...
Tipo: Conference Paper or Presentation Palavras-chave: Agricultural and Food Policy; International Development.
Ano: 2006 URL: http://purl.umn.edu/25798
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Accounting for Impact of Environmental Degradation in Agriculture of Indian Punjab AgEcon
Singh, Joginder; Sidhu, R.S..
Having witnessed a fast growth, the agriculture in Punjab has reached a plateau. To sustain even the existing level, the costs are increasing and natural resources are being depleted due to overuse. This study has examined the use of certain resources and its impact on the cost of production. The data have been collected from different primary and secondary sources. The fast increase in area under rice and wheat appears to be unsustainable due to the fast decline in water table. Therefore, the cost of pumping out water with electricity has been going up, shortage of electric power has resulted in increase in the number of electric and diesel tubewells, further escalating the cost of production. The replenishment of soil health due to depleting macro and...
Tipo: Journal Article Palavras-chave: Agricultural and Food Policy.
Ano: 2006 URL: http://purl.umn.edu/57776
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