Agronomy - Study Mode

[#901] Kalyan Sona is a
Correct Answer

(C) Triple gene dwarf

Explanation

Solution: Kalyan sona is the high yielding, triple gene dwarf variety of wheat. It is a disease resistant and fertilizer responsive crop variety. It is widely recommended to be cultivated all over India.

[#902] . . . . . . . . portion of sugarcane stalk is preferred for sowing purposes.
Correct Answer

(A) Top one-third to half portion

Explanation

Solution: Healthy seed material, free from pests and diseases is selected for plantation. The top one-third to half portion of the sugarcane stalk is preferred for sowing purposes as has immature buds of high viability. The bottom portion of the stalk is rich in sugar and takes a long time to germinate thus that can be used in sugar and jaggery production.

[#903] The word 'Agros' means
Correct Answer

(B) Field

Explanation

Solution: Agronomy is derived from two Greek words, “agros” which means field, and "nomos” to manage. It is a branch of agriculture that deals with field crop production and soil management. Pietro de'Crescenzi is the father of agronomy.

[#904] The ratio between gross and net cropped area is called an index of
Correct Answer

(A) Cropping intensity

Explanation

Solution: The ratio between gross and net cropped area is called an index of cropping intensity. It can also be termed the intensity of crop rotation. Gross cropped area is the total area sown once or more than once in a year whereas Net sown area is the area sown with crops but is counted only once.

[#905] The optimum temperature for sugarcane ripening is
Correct Answer

(B) 60°F

Explanation

Solution: The optimum temperature for sugarcane ripening is 60°F. It thrives best in hot sunny tropical areas. The ideal climate for sugarcane is a long, warm growing season with long daylight along with adequate moisture in the soil.