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Pusa-44 to Pusa-2090: Rice Evolution for Sustainable Farming



  Nov 09, 2023

The Evolution from Pusa-44 to Pusa-2090 Rice Varieties



Background on Pusa-44

Pusa-44 is a rice variety developed by the Indian Agricultural Research Institute (IARI) in New Delhi. Its key characteristics are:

Long Duration: It takes about 155-160 days to mature from nursery sowing to grain harvest.

Sowing and Harvesting Timeline: Typically sown in nurseries in May, transplanted in mid-June, and ready for harvest by late October.

Impact on Subsequent Crops: Its late harvesting leaves little time for farmers to prepare fields for the next wheat crop, which ideally should be sown by mid-November.

Stubble Burning: Due to the time crunch, farmers often resort to burning the leftover stubble and straw post-harvest to quickly clear fields, contributing to air pollution.

Pusa-44’s Popularity

Despite its long maturation period, Pusa-44 is favored for:

High Yield: It produces about 35-36 quintals per acre, with some cases of farmers harvesting up to 40 quintals per acre.

Introduction of Pusa-2090

Recognizing the need for an improvement, IARI developed Pusa-2090, an enhanced version of Pusa-44:

Reduced Maturity Time: Pusa-2090 matures in just 120-125 days.

Genetic Cross: It is a crossbreed between Pusa-44 and CB-501, an early-maturing Japonica rice line.

Yield: It claims to match the high yield of Pusa-44.

Significance of Pusa-2090

Reduction in Air Pollution: Shorter maturation period means timely field clearance for wheat sowing, reducing the need for stubble burning.

Efficient Farming Cycle: Helps maintain the cycle of crop rotation without time pressure.

Sustainable Agricultural Practices: Promotes more environmentally friendly farming methods.

This advancement in rice cultivation can be a significant step towards addressing both the agricultural productivity and environmental concerns related to stubble burning in regions like Punjab and Haryana, which affect air quality in northern India, including Delhi.

SRIRAM’s


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