Horticulture - Study Mode

[#271] Dwarfing rootstock for pear is
Correct Answer

(B) Quince

Explanation

Solution: Dwarfing rootstock for pear is Quince . Dwarfing rootstocks produce the smallest trees and range from 6 feet tall to 12 to 14 feet tall. Quince is a deciduous tree that bears hard, aromatic bright golden-yellow pome fruit, similar in appearance to a pear. The quince (Cydonia oblonga) has been used for centuries as a rootstock for pear. Such stocks produce dwarf trees that are earlier bearing (with some varieties) than standard trees. The fruit from dwarf trees may mature a bit early, but it is of good quality.

[#272] Prevention of sprouting in onion during storage is prevented by a pre harvest spray of
Correct Answer

(A) Maleic hydrazide

Explanation

Solution: Prevention of sprouting in the onion during storage is prevented by a pre-harvest spray of Maleic hydrazide . The hot and humid conditions of the kitchen and storage area favour the sprouting of onions. It is an herbicide and plant growth regulator. It is of low acute toxicity. It has been shown to cause genotoxic effects in some mutagenicity studies. Its residue in food and tobacco is toxic, causing CNS disturbances and liver damage.

[#273] Mutant variety of Okra is
Correct Answer

(D) Punjab-8

Explanation

Solution: The mutant variety of okra is Punjab - 8 . It is developed and released by KVK Ludhiana in 1995. Plants are medium tall with splashes of purple pigmentation present on the stem. Leaves are deeply lobed and less serrated. Leaves, stems and petiole are less hairy. Fruits are thin, long, dark green and five ridged. It has resistance to the yellow vein mosaic virus and is tolerant to the borer. It is suitable for processing. The average marketable yield is 55 q/acre. It is suitable for February - March as well as June - July sowings.

[#274] Shading structure used in betel vine cultivation is called
Correct Answer

(B) Bareja

Explanation

Solution: The shading structure used in betel vine cultivation is called Bareja . Bareja is normally made on raised slightly sloppy land. It is constructed with locally- available materials like bamboo, jute sticks, straw, etc. with a height of 2 - 2.5 m. The walls and top of the bareja are covered with thatching material like leaves of coconut, sugarcane, etc.
It is a type of artificially created controlled environment for better quality and production of betel vine.

[#275] The optimum storage temperature of banana is
Correct Answer

(B) 13°C

Explanation

Solution: The optimum storage temperature of a banana is 13°C. A cool and dark area is required for the storage purpose of bananas. For those banana fruits stored at room temperature, the shelf-life of the banana was only reached up to 6 days. For those banana fruits stored in cold storage, the condition of banana fruits reached up to 12 days.