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71
Sulfur requirement is high in
Discuss
Answer & Solution
Answer: Option C
Solution:
Sulfur is one of the essential nutrients required by almost all crop plantations in adequate amounts as it plays an important role in the biochemical reaction of all life on earth. Sulphur is involved in the formation of chlorophyll, glucosides and glucosinolates activation of enzymes and sulphydrl (-SH) linkages that are the source of pungency in oils. Sulphur also increases root growth and stimulates seed formation.
72
Native place of rice is
Discuss
Answer & Solution
Answer: Option C
Solution:
Rice, Oryza sativa is believed to be originated from India. Historians believe that the indica variety of rice was first domesticated in the area covering the eastern Himalayas (north-eastern India), stretching through Burma (now called Myanmar) Thailand, Vietnam and southern China.
73
Match the following columns:
Column I (Phenomenon) Column II (Crop)
a. Topping 1. Tomato
b. Peg 2. Gram
c. Ratooning 3. Groundnut
d. Staking 4. Sugarcane
Discuss
Answer & Solution
Answer: Option A
Solution:
1. Topping is a process by which the aerial part of a crop is removed to avoid seed formation and distribution onto the soil. It makes the plant more bushy and stout. E.g. gram.

2. Peg, an unusual stalklike structure grows from the base of the flower toward the soil formed after pollination and the withering of the flower. And this phenomenon called geocarpy is the peculiar characteristic of groundnut.

3. Ratooning is an ancient method of propagation in sugarcane in which subterranean buds on the stubble give rise to a new crop stand.

4. Staking is the phenomenon to tie tomatoes to an upward rod-like structure that encourages growth.
74
The optimum plant population per hectare of sorghum is
Discuss
Answer & Solution
Answer: Option C
Solution:
The optimum plant density or plant population for any plant results in mature plants that are sufficiently crowded to efficiently use resources such as water, nutrients and sunlight. The optimum plant population per hectare of sorghum is 1,50,000 plants approximately.
75
Atmospheric phenomenon like fog and dew require a minimum of . . . . . . . . percent Relative Humidity
Discuss
Answer & Solution
Answer: Option C
Solution:
Fog normally occurs from either added moisture in the air or falling ambient air temperature. It normally occurs at a relative humidity near 100% but a minimum of at least 75% relative humidity is required for an atmospheric phenomenon like fog and dew.
76
Delinting of cotton seed may be done with
Discuss
Answer & Solution
Answer: Option A
Solution:
Delinting is the process of removal of fuzz from the seed coat in cotton. It is a crop-specific seed management technique. The conventional chemical delinting process utilizes Hydrochloric acid gas or Sulphuric acid to remove the residual lint attached to the hulls of the cotton seeds.
77
Beany Flavour in Soybean is due to presence of enzyme
Discuss
Answer & Solution
Answer: Option A
Solution:
The Beany flavor in soybean is due to the presence of the Lipoxydase enzyme. This enzyme is involved in the oxidation of lipids or fats, which results in beany flavor. Soybean is an annual legume of the pea family, the most important bean economically grown in the world. It provides vegetable protein for millions of people.
78
Olericulture is the study dealing with
Discuss
Answer & Solution
Answer: Option C
Solution:
Olericulture is the study that deals with the production, storage, processing and marketing of vegetables. It includes maintenance and care of vegetable crops as well commercial and non-traditional vegetable crop production. It incorporates crop establishment, including cultivar selection seedbed preparation and establishment of vegetable crops by seed and transplants.
79
The first Director General of Indian Council of Agricultural Research was
Discuss
Answer & Solution
Answer: Option D
Solution:
ICAR stands for The Indian Council of Agricultural Research and is an autonomous organization under the Department of Agricultural Research and Education, Government of India aims to coordinate agricultural education and research in India. It was established on 16th July 1929, headquartered in New Delhi. The first Director General of ICAR was Dr. B. P. Pal.
80
Content of starch in maize is approximately
Discuss
Answer & Solution
Answer: Option A
Solution:
Maize is one of the starchy food, it contains approximately 70% of starch in its kernel. Starch is the major chemical component of maize kernel. Protein content ranges from 10% - 13%, while oil contents ranged from 4% - 6%.