Agronomy - Study Mode

[#316] Maximum area coverage in the world is of
Correct Answer

(A) Wheat

Explanation

Solution: Wheat (Triticum) is the cereal grain that has the maximum area coverage under cultivation in the world. The total global production of wheat was 760 million tons in 2020. China, India and Russia are the three largest producers of wheat in the world, accounting for 41% of total production.

[#317] Required plant population of gram may be obtained by using a seed rate of (kg/ha)
Correct Answer

(B) 75 - 100

Explanation

Solution: To find the seed rate per hectare, we have to divide the number of seeds needed by the number of seeds per kg, and multiplying this times the size of the field in hectares will give the total amount of seeds required. The required plant population of a gram may be obtained by using a seed rate of 75 - 100 kg/ha.

[#318] Seed rate of sorghum is . . . . . . . . Kilogram/hectare.
Correct Answer

(A) 12 - 15

Explanation

Solution: The seed rate of sorghum is 12 - 15 Kilogram/hectare with row to row spacing of 45 cm and plant to plant spacing of 15 cm. Sorghum is an ancient grain, a protein source and is full of nutrients. It is a versatile crop that can be grown as grain, forage or sweet crop.

[#319] Rapidly used in agronomy, correlation coefficient 'r' lies between
Correct Answer

(C) -1 to +1

Explanation

Solution: The correlation coefficient (r) is a measure of the closeness of association of the points in a scatter plot to a linear regression line based on the points. Possible values of the correlation coefficient range from -1 to +1, -1 indicates a perfectly linear negative i.e. inverse correlation and +1 indicates a perfect linear positive correlation.

[#320] Indian dwarf wheat belongs to
Correct Answer

(C) T. spherococcum

Explanation

Solution: Triticum spherococcum is the first Indian dwarf wheat. this is found in limited areas of Madhya Pradesh and Uttar Pradesh of India.
It is a hexaploid species and this belongs to the club wheat of western countries. It is characterized by very short and compact heads having shorter grains. It contains 42 chromosomes.