Saturday, July 21, 2012

Production of Virus Free Seed Potatoes: Based on a Research conducted on Two Cultivars of Potato by Meristem Culture and Thermotherapy

Production of Virus Free Seed Potatoes: Based on a Research conducted on Two Cultivars of Potato by Meristem Culture and Thermotherapy Review

Production of Virus Free Seed Potatoes: Based on a Research conducted on Two Cultivars of Potato by Meristem Culture and Thermotherapy

"Buy Production of Virus Free Seed Potatoes: Based on a Research conducted on Two Cultivars of Potato by Meristem Culture and Thermotherapy" Overview

Elimination of Potato virus X and Potato virus Y was reported from two potato cultivars viz. Multa and Petronese by meristem culture only and thermotherapy, followed by meristem culture. Meristems of size ranging from 0.1 mm to 0.4 mm were excised and cultured in liquid media viz. MS + 0.25 mg l-1 calcium pentothenate and incubated under 16 hr photo period at 24 + 1oC. For thermotherapy, the potato tubers were incubated at 35oC for three weeks and followed by meristem culture. Meristems, sized 0.2 mm to 0.3 mm were found superior for both virus elimination and survival during thermotherapy and without thermotherapy PVY was eliminated easily then PVX. The plantlets developed from meristems were multiplied by performing nodal cutting in MS solid media supplemented with GA3 in different concentration. The media MS + 0.1 ppm GA3 was observed to be superior for multiplication. The variety petronese was observed to have more multiplication rate. Virus free plant lets were transplanted in the screen house and virus free pre-basic seed potatoes were obtained after 12 weeks of transplantation.You will not be disappointed with Production of Virus Free Seed Potatoes: Based on a Research conducted on Two Cultivars of Potato by Meristem Culture and Thermotherapy

Seeds of Contention: World Hunger and the Global Controversy over GM Crops (International Food Policy Research Institute) Review

Seeds of Contention: World Hunger and the Global Controversy over GM Crops (International Food Policy Research Institute)

"Buy Seeds of Contention: World Hunger and the Global Controversy over GM Crops (International Food Policy Research Institute)" Overview

In recent years the media have reported, frequently with alarm, on the increasing use of genetically modified crops in agriculture. Some groups have expressed concern about consumer safety and the risks of large-scale ecosystem damage. Others have noted the resulting shift of power away from locally controlled farming operations toward large agribusiness and biotech companies, and the particular vulnerability of farmers in the developing world to this trend.

In Seeds of Contention: World Hunger and the Global Controversy over GM Crops, development specialists Per Pinstrup-Andersen and Ebbe Schiøler focus attention on the less discussed issues of the potential benefits and costs of genetically modified crops for developing countries. Pinstrup-Andersen and Schiøler review the basic issues and discuss the potential that such crops have for addressing the great needs of poor and undernourished peoples throughout the world. They explain how increased agricultural productivity is not enough in addressing the problem of famine. People in developing countries need crops that are disease-resistant, can fend off insect predators, and can withstand severe environmental conditions in order to produce larger crop yields.

Pinstrup-Andersen and Schiøler are sober in their assessment of these prospects, for they acknowledge that GM crops alone will not solve the world's food problem. They argue, however, that they may be one element in the solution and people in developing countries should have information about benefits and risks and the freedom to make their own decisions about whether or not to grow and consume GM crops.

You will not be disappointed with Seeds of Contention: World Hunger and the Global Controversy over GM Crops (International Food Policy Research Institute)

potato seeds

Saturday, July 21, 2012