Horticulture - Study Mode
[#286] Fruit which show either a rise in respiration rate or an associated production of ethylene during the ripening process are called
Correct Answer
(B) Non-Climacteric
Explanation
Solution: A fruit that shows either a rise in respiration rate or an associated production of ethylene during the ripening process is called Non-Climacteric. Fruit ripening is a highly coordinated developmental process that coincides with seed maturation. The ripening process is regulated by thousands of genes that control progressive softening and/or lignification of pericarp layers, accumulation of sugars, acids, pigments and release of volatiles. Non-climacteric fruits include strawberry, grape, raspberry, cherry, citrus, etc. Non-climacteric fruits are characterized by ripening transitions that do not strictly depend on a significant increase in ethylene production and an associated rise in respiration rate.
[#287] Bitter taste in brinjal fruit is due to
Correct Answer
(C) Solasodine
Explanation
Solution: The bitter taste in brinjal fruit is due to Solasodine . Anthocyanin pigment present in the fruit is responsible for the purple colour of fruit skin. Amino acid content is higher in the purple variety. Bitterness in brinjal is due to the presence of glycoalkaloids i.e. solasodine. Generally, a high amount of glycoalkaloids produces a bitter taste and off flavour. Eggplant is ranked as a vegetable with high antioxidant activity that is attributed to the anthocyanins and phenolic compounds contained in eggplants.
[#288] Pre-cooling is meant to
Correct Answer
(B) Remove the field heat
Explanation
Solution: Pre-cooling is meant to remove the field heat . Pre-cooling is a vital post-harvest management practice that is required before storage. Since there is a big difference between the temperature of harvested crops and cooling storage, the main purpose of pre-cooling is to remove the heat from the crops after they are harvested. There are seven principal methods of pre-cooling fresh produce: 1) Room cooling 2) Forced-air cooling 3) Hydro-cooling 4) Ice cooling 5) Vacuum cooling 6) Cryogenic cooling 7) Evaporative cooling
[#289] Pungency principle in chilli is
Correct Answer
(B) Capsaicin
Explanation
Solution: The pungency principle in chilli is Capsaicin . The spiciness in chili peppers is known as pungency and it is due to the presence of a group of compounds called capsaicinoids. Capsaicin is the major spice-producing alkaloid present in peppers. It is a mixture of closely related compounds called capsinoids. Chief among these is the compound capsaicin, which is known by the chemical name: (E)-N-[(4-hydroxy-3-methoxyphenyl) methyl]-8-methyl-6-nonenamide.
[#290] The equilateral triangle system of planting accommodates how many more trees than square system?
Correct Answer
(A) 15%
Explanation
Solution: The equilateral triangle system of planting accommodates 15% more trees than the square system. The equilateral triangle system accommodates 15% more plants than the square system. Plants are planted at the corner of an equilateral triangle. Six trees are planted making a hexagon. The seventh tree is planted in the centre and called septule. This system is generally followed where the land is costly and very fertile with ample provision of irrigation water. In a square system, trees are planted on each comer of a square whatever may be the planting distance. This is the most commonly followed system and is very easy to layout. The central place between four trees may be advantageously used to raise short-lived filler trees.