Agronomy MCQ Question and Answer | Agriculture MCQ Question

81

1 hectare meter is equal to . . . . . . . . m³ of water.

A) 100 cubic meters B) 1000 cubic meters C) 10000 cubic meters D) 100000 cubic meters

Discuss

Answer & Solution

Answer: Option C

Solution:

1 hectare meter is equal to 10000 cubic meters.

82

Central Rice Research Institute is located at

A) Hyderabad B) Cuttack C) Karnal D) Ranchi

Discuss

Answer & Solution

Answer: Option B

Solution:

Central Rice Research Institute was set up on 23^rd April 1946, at Bidhyadharpur, Cuttack, Odisha on an experimental farm land later it was established under ICAR in 1966.

83

Sugarbeet is the long day plant but sugarcane is

A) Long day B) Short day C) Day neutral D) None of these

Discuss

Answer & Solution

Answer: Option B

Solution:

Sugar beet and sugarcane both are used in the production of sugar. Sugar beet is the long day plant means it requires more than 12 hours of daylight for proper fruiting and flowering and synthesis of sugar whereas sugar cane is a short day plant which means 8 hours of daylight is also appropriate for food synthesis in cane.

84

Topping of safflower plants is beneficial

A) To reduce lodging B) To promote branching and flowering C) To reduce water loss D) To promote only branching

Discuss

Answer & Solution

Answer: Option B

Solution:

Topping or pinching is the method of removing the top or aerial part of the plant to avoid the seed formation process in the plant and it helps in making the plant bushy. Hence this practice in the safflower flower promotes branching and flowering.

85

Low quality of jute fibre is attributed to
1. Discoloration of fibre
2. Very short fibre strands
3. Reduction of cellulose in fibre
4. Reduction of cell wall strength over-retting decreases the fibre quality due to
Select the correct answer:

A) 3 and 4 B) 2 and 3 C) 1 and 4 D) 1 and 2

Discuss

Answer & Solution

Answer: Option D

Solution:

Jute is one of the most affordable natural fibers, it is also called "golden fiber" because of its colour and high cash value. Some of the features like discolouration of fibre and very short fibre strands attribute to low quality jute fibre.

86

Optimum temperature requires for growth of sugarcane is

A) 15° - 20°C B) 20° - 25°C C) 25° - 30°C D) 30° - 35°C

Discuss

Answer & Solution

Answer: Option C

Solution:

Sugar cane is a tropical as well as subtropical crop and grows well in a hot and humid climate with a temperature of 25 to 30 degrees celcius. It is a short day plant that requires a maximum of 8 hrs of daylight and annual rainfall between 75 cm and 100 cm.

87

Field water used efficiency is calculated by

A) WUE = $$\frac{{\text{Y}}}{{{\text{WR}}}}$$ B) WUE = $$\frac{{\text{Y}}}{{{\text{ET}}}}$$ C) WUE = $$\frac{{\text{Y}}}{{{\text{CU}}}}$$ D) None of these

Discuss

Answer & Solution

Answer: Option B

Solution:

The field water use efficiency (WUE) is the ratio between the dry matter production of a plant (the output) divided by evapotranspiration. Thus the equation for WUE is:
WUE = $$\frac{{\text{Y}}}{{{\text{ET}}}}$$
Y = Dry matter production (Kilogram/hectare)
ET = Evapotranspiration (in mm)

88

Seed ball is a fruit of

A) Safflower B) Sunflower C) Linseed D) Sugarbeet

Discuss

Answer & Solution

Answer: Option C

Solution:

The fruit of linseed is called a seed ball. Fruit is a capsule, globular in shape mostly indehiscent. Seeds are compressed shining yellow or light brown. It has been grown since ancient times for fiber and for its seeds which are rich in oil.

89

The ideal stage of harvest of jute for fibre purpose is

A) One month old B) Flowering C) Small pod stage D) Mature pod stage

Discuss

Answer & Solution

Answer: Option C

Solution:

Jute is harvested any time between 120 days to 150 days, after the shedding of flowers or with the start of the small pod stage. Early harvesting gives good quality fibers and yield. The stems of harvested plants are bundled and immersed in water for 10 to 15 days, then after rotting, fibres are separated by hand.

90

Central Potato Research Institute (CPRI) is

A) Shimla B) Patna C) Hyderabad D) Lucknow

Discuss

Answer & Solution

Answer: Option A

Solution:

CPRI is a governmental organization that works under ICAR and is located in the capital of Himachal Pradesh that is Shimla, near Bemloe. The main objective of this institute is “varietal development and identify improved production technologies for potato in different agro-climatic regions”