Agronomy

31.Which state has highest productivity of sugarcane?
a.Bihar
b.
c.Karnataka
d.

Option “D” is correct.
Uttar Pradesh is the largest sugarcane-producing state of India producing over 1333 lakh tonnes followed by, Maharashtra and Tamil Nadu.
So, out of the all other options Tamil Nadu is the largest producer of sugar cane i.e. 375 lakh tonnes.
32.The book, The Nature and Properties of Soils is written by-
a.
b.
c.
d.

Option “D” is correct.
The book “The Nature and properties of soils” is written by Nyle. C. Brady, Emeritus professor. It covers Soil Fertility, Land Resources, Earth Science and Soil Geography.
33.The bitter taste of gram Kaveri is due to the presence of-
a.
b.
c.
d.

Option “B” is correct.
The bitter taste of gram Kaveri is due to the presence of oxalic acid in it.
34.In salinity affected areas, sowing in ridges-
a.
b.
c.
d.

Option “A” is correct.
The salinity affected area has its unique method of plantation. They follow a furrow irrigation system and maximum salts accumulate in ridges of soil between the furrows. Some follow ridge cultivation with drip irrigation which can decrease soil salinity and produce ecological benefits. Northern areas are salinity affected areas thus ridge cultivation occurs in northern slope areas.
35.The effect of LGLL (Laser Guided Land Levelling) lasts for-
a.
b.
c.
d.

Option “B” is correct.
LGLL stands for Laser Guided Land Levelling. As per the studies it is believed to reduce greenhouse gas emissions by saving energy, reducing cultivation time, and increasing input efficiency. It works through a laser transmitter which transmits a laser beam, which is intercepted by the laser receiver mounted on the leveling bucket. The control panel mounted on the tractor interprets the signal from the receiver and opens or closes the hydraulic control valve, which further raises or lowers the bucket. Its effect lasts for 2 – 3 years.
36.Rice is originated in-
a.
b.Pakistan
c.
d.

Option “D” is correct.
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.
37.The strongest chemical agent for breaking dormancy is-
a.
b.Ethylene
c.Gibberellin
d.Cumerin

Option “A” is correct.
Dormancy is a strategical condition of higher plants to survive adverse conditions by pausing growth and development, and it can occur in any organ like seeds or buds, etc. It can be controlled both by genetic and environmental factors. While Potassium nitrate is the strongest chemical used for breaking dormancy.
38.A place where money is coined-
a.Mint
b.Press
c.Treasury
d.Bank

Option “A” is correct.
A mint is a name of an industry that manufactures coins that can be used as currency. The first mint was established in Lydia in the 7th century BC for coining gold, silver and electrum.
39.Which one of the following is not correctly matched in the term of Crop and Variety?
a.Mustard ⇔ Vardan
b.Brinjal ⇔ Azad Hybrid
c.Tomato ⇔ Rashmi
d.Maize ⇔ Swarna

Option “D” is correct.
Here option D, Maize ⇔ Swarna is not correctly matched as Swarna is not any variety of maize crop. While the similar named variety of maize is Suvarna Nmh 589 seeds. All others correctly match the crop with its variety.
40.Khaira disease is associated with-
a.Wheat
b.Paddy
c.Maize
d.Barley

Option “B” is correct.
Khaira disease is associated with paddy. It is a micro nutritional deficiency disease characterized by the presence of dusty brown patches on leaves which ultimately undergo necrosis. It affects the leaf of the plant because of which the rate of photosynthesis is decreased ultimately affecting the production. The essential nutrient responsible for khaira disease in rice is Zinc.
en_GBEnglish