Question

Aus, Aman and Boro are varieties of …………………………
(A) Tea
(B) Coffee
(C) Rice
(D) Wheat

Answer 1

Hint: Aus refers July- August season. Aman refers to the December- January seasons. Boro refers march- May seasons, these are the varieties of rice. Rice is a stable food for many countries around the world. Rice is the third highest worldwide production after maize and sugarcane.

Complete step by step solution
Rice is generally sown thrice in one year. Cultivation of rice needs high temperature and high humidity with annual rainfall above $100$ cm. Rice can grow on silty soil, alkaline soils, loams and soil. Methods of rice cultivation are broadcasting method, drilling method, transplantation method, Japanese method.

Details of Climate and soil needs
1. Average temperature- $21 - {37^ \circ }C$ , Blooming required temperature- $26.5 - {29.5^ \circ }C$ .
2. Ripening temperature should be $20 - {25^ \circ }C$ .
3. Clay loams soil suited with pH range between $5.5 - 6.5$ .
Aman variety of rice sown between the rainy season and harvested in winter. Aus variety of rice is sown in summer along with pre- monsoonal falls and harvested in autumn. Boro variety of rice sown in winter and harvested in summer, this is known as spring rice. In India, the production percentage of Aus is $43.91\% $ , Aman is $48.79\% $ , Boro is $7 - 24\% $ .

Thus the option (C) is correct

Note: In Asia, more than $2,000$ million people receive $60\% - 70\% $ of their calories from rice. Aman variety rice is mainly produced. Aus variety rice is rasping. Kharif refers to autumn, kharif crops contain rice, maize, pearl millet, etc. the United Nations announced the year $2004$ as International year of Rice.