Horticulture - Study Mode

[#116] How can one protect the stem-end of radish root from becoming green?
Correct Answer

(B) By earthing

Explanation

Solution: One can protect the stem-end of radish root from becoming green by earthing . The most frequent cause of radishes growing only greens is hot weather. Once the weather warms up, the radish plant bolts and tries to set seed. The lack of development is caused by planting too thickly and not thinning about 1 to 2 inches between plants. In radish, the growing roots tend to push out of the soil surface. Therefore, earthing up and weeding during the early stages of growth is necessary for the proper development of quality roots.

[#117] Institute of Horticultural Technology (IHT) is located in . . . . . . . .
Correct Answer

(B) New Delhi

Explanation

Solution: The Institute of Horticultural Technology (IHT) is located in New Delhi . IHT is located in Greater Noida in the Delhi NCR region about 41 km from New Delhi railway station, 54kms from International/Domestic Airport and 45 km from IARI New Delhi. Institute Of Horticulture Technology established in 2009 is a premier Institute for conducting Educational & Research Programmes in Modern Horticulture and providing Residential Capacity Building Training for opening numerous opportunities for career building in India and abroad.

[#118] Major alkaloid in periwinkle leaves is
Correct Answer

(C) Vinblastine

Explanation

Solution: The major alkaloid in periwinkle leaves is Vinblastine . Vinblastine is the salt of an alkaloid extracted from a flowering herb commonly known as periwinkle. Vinblastine is cell cycle phase-specific, it binds to microtubular proteins in the mitotic spindle, thereby preventing cell division during metaphase. Vinblastine is an anti-cancer ("antineoplastic" or "cytotoxic") chemotherapy drug. This medication is classified as a "plant alkaloid".

[#119] Pusa arpita is a variety of which crop?
Correct Answer

(B) Marigold

Explanation

Solution: Pusa Arpita is a variety of Marigold . This variety was developed in the year 2009. Which one is suitable for cultivation in the northern plains. Its flowers are medium-sized and light orange in colour. Plants flower from December to February when cultivated on northern plains. The yield of fresh flowers ranges from 72 to 80 quintals per acre of field cultivated.

[#120] Only two chemical preservatives permitted by FPO are
Correct Answer

(A) Sodium benzoate and Potassium meta-bisulphate

Explanation

Solution: Only two chemical preservatives permitted by FPO are Sodium benzoate and Potassium meta-bisulphate. Sodium benzoate is best known as a preservative used in processed foods and beverages to extend shelf life. It is an odorless, crystalline powder made by combining benzoic acid and sodium hydroxide. Potassium metabisulfite , K 2 S 2 O 5 , also known as potassium pyrosulfite, is a white crystalline powder with a pungent odour. It is mainly used as an antioxidant or chemical sterilant.