Horticulture - Study Mode

[#416] Pusa early dwarf is an improved variety of
Correct Answer

(C) Strawberry

Explanation

Solution: Pusa early dwarf is an improved variety of strawberries . Strawberry is one of the important small fruit among berries. Farmers grow varieties that are resistant to pests and diseases, have adaptability for the desired climate, remain in production for a long period, are high yielding and able to retain size after the 3 rd picking, have good processing quality and have good runner-producing capacity. Pusa early is the pride of North Indian plains and has a large size and wedge-shaped fruit. Furthermore, this is a dwarf plant variety that starts bearing flowers in the first week of February.

[#417] Plant Introduction Scheme, headed by Dr. Harbhajan Singh that marked the beginning of systematic evolution of exotic and indigenous vegetable varieties was started at IARI during . . . . . . . .
Correct Answer

(A) 1947 - 48

Explanation

Solution: Plant Introduction Scheme, headed by Dr. Harbhajan Singh marked the beginning of the systematic evolution of exotic and indigenous vegetable varieties started at IARI during 1947 - 48. A centralized plant introduction agency was initiated in 1946 at IARI, New Delhi. The agency began a plant introduction scheme in the Division of Botany and was funded by ICAR. Subsequently, in 1961 it was made an independent division and subsequently called as National Bureau of Plant Genetic Resources in 1976. The ICAR scheme for 'Plant Introduction' commenced functioning in 1946 in the then Botany Division of IARI under the leadership of the Late Dr. Harbhajan Singh as the first 'Operational Scientist'.

[#418] High production in protected cultivation is due to
Correct Answer

(A) High photosynthetic efficiency

Explanation

Solution: High production in protected cultivation is due to High photosynthetic efficiency . Protected cultivation is a process of growing crops in a controlled environment. This means that the temperature, humidity, light and other factors can be regulated as per the requirement of the crop. This assists in healthier and larger produce. This type of cultivation prevents weed growth and acts as a barrier to soil pathogens. Accelerates uptake of micronutrients from the soil by the active root zone. Conserves soil moisture thereby reducing the irrigation water requirement of the crop. Enhances quality of the product with cleaner crop.

[#419] Most common training system of apple in India is
Correct Answer

(B) Modified leader

Explanation

Solution: The most common training system of apple in India is Modified leader . In the modified leader system of the training system of the apple, at first, the tree is trained by a central leader system to develop the main trunk without any hindrance for the first four or five years. After that, it is cut at a height of 120 to 150 cm from the ground level.

[#420] Higher lycopene synthesis is seen in tomato at a temperature of
Correct Answer

(A) 21° - 24°C

Explanation

Solution: Higher lycopene synthesis is seen in tomatoes at a temperature of 21° - 24°C. Tomato fruit harvested green-ripe and exposed to light for 24 hours of ripening at 21° - 24°C in a growth cabinet, had a higher concentration of lycopene than light-ripe green fruit for 8 hours. However, the formation of lycopene is inhibited when the temperature of the fruits exceeds 30ºC. Lycopene is a bright red carotenoid hydrocarbon found in tomatoes and other red fruits and vegetables. It is found within the cells of tomatoes and should be cooked to help release lycopene and increase bioavailability.