Explanation: Dr. Gurcharan Singh Kalkat was a renowned Indian agricultural scientist who made significant contributions to the Green Revolution in India. The Green Revolution, which took place in the 1960s and 1970s, was a period of rapid agricultural growth characterized by the adoption of new technologies and practices that led to a substantial increase in food grain production.
The Green Revolution was primarily driven by the introduction of high-yielding varieties (HYVs) of seeds, particularly wheat and rice, which were developed through scientific breeding programs. These HYVs were more resistant to diseases and pests and could produce higher yields when combined with improved irrigation, fertilizers, and pesticides. Dr. Kalkat played a crucial role in the development and dissemination of these technologies, which were instrumental in transforming Indian agriculture and ensuring food security for the growing population.
Dr. Kalkat's contributions were not limited to the development of HYVs. He also worked on improving agricultural practices, such as irrigation techniques and the use of fertilizers, to enhance crop productivity. His efforts were part of a broader national initiative to modernize Indian agriculture and reduce the country's dependence on food imports.
The Green Revolution had a profound impact on Indian agriculture, leading to a significant increase in food grain production and helping to alleviate food shortages. However, it also had some negative consequences, such as the overuse of chemical fertilizers and pesticides, which led to environmental degradation and soil depletion. Despite these challenges, the Green Revolution remains a landmark period in Indian agricultural history, and Dr. Gurcharan Singh Kalkat's contributions to this movement are widely recognized and celebrated.
In summary, the correct answer is (C) Green, as Dr. Gurcharan Singh Kalkat was a pioneer of the Green Revolution in India, which was a period of significant agricultural growth and modernization. His work in developing high-yielding varieties of seeds and improving agricultural practices played a crucial role in transforming Indian agriculture and ensuring food security for the nation.