Horticulture MCQ Question and Answer | Agriculture MCQ Question

A pest posing problem to mango export is Fruit Fly.
Mango (Mangifera indica Linn.), an evergreen and widely cultivated fruit crop of tropical and subtropical regions, is attacked by about 400 insect and mite pests. Fruit flies and stone weevils are of quarantine importance and restrict the international trade of mangoes.
The mango fruit fly, Ceratitis cosyra (Walker), is also commonly known as the marula fruit fly, based on its common occurrence in these host plants.

In flowering plants, each anther has four numbers of pollen sacs.
The anther contains pollen sacs that produce pollen grains which are male gametophytes containing male gametes. There are four pollen sacs in the bilobed anther.
Two anther lobes contain 4 pollen sacs in which pollen grains are produced. Pollen grains develop from the diploid microspore mother cells in pollen sacs of anthers.

Kunwari, Giant Snow Ball and Pusa synthetic are varieties of Cauliflower.
Kunwari is a large dome-shaped curd variety of cauliflower, best sowing in mid-May - June in North India. It gets ready in 55 to 60 days after transplanting.
It is a derivative of the cross between EC 12013 and EC 12012 and was released from IARI, Regional Station, Katrain (Kullu Valley). It is a late variety and suitable for the cool season. Its sowing time in north India is from mid-September to the end of October. Curds are very compact, medium in size and snow white.
It is a mid-season variety, synthesized from 7 inbred lines with good combining ability, released from IARI, New Delhi. Curds are somewhat creamy white to white, compact becomes ready from mid-December to mid-January. It is suitable for planting from mid-September to late September in North India.

The edible banana is Triploid.
Wild diploid accessions are seeded whereas edible bananas are seedless, parthenocarpic and vegetative propagated. Most of these cultivars are triploid, even if some edible bananas are cultivated in Asia, the origin of Musa species.
The gametes in the 2N pollen grains or 2N eggs are functional and on fertilizing a normal gamete they give triploid progeny. The triploid bananas are sterile and most sterile plants produce no fruits.

Varsha upahar is a variety of Okra.
This variety is derived from the cross Lam Selection IX x Parbhani Kranti, released from Haryana Agricultural University, Hissar.
Varsha Upahar is a new variety of okra (Abelmoschus esculentus) resistant to yellow vein mosaic geminivirus.
It is medium in height, with short internodes, produces 2 - 3 branches, and can give seed yields of 1.5 t/ha. In 3 rainy season trials, it yielded 9.8 t/ha, outyielding a local commercial cultivar (6.6 t/ha).

Chow chow and Pointed gourd are both vegetables that are the recalcitrant seed.
Recalcitrant seeds are seeds that do not survive drying and freezing during ex-situ conservation. By and large, these seeds cannot resist the effects of drying or temperatures less than 10°C (50°F); thus, they cannot be stored for long periods like orthodox seeds because they can lose their viability.
Some other examples are avocado, mango, mangosteen, lychee, cocoa, rubber tree, etc.

Indian Society of Vegetable Science was established in 1973.
Indian Society of Vegetable Science is a non-profit organization, established in 1973. Its primary office is in Varanasi, Uttar Pradesh.
The main objective of this society is to promote knowledge and research in vegetable crops and to advance the cause of Vegetable Science in India.
To encourage the development of vegetable cultivation and seed production based on scientific and technical knowledge and to hold conferences, symposia, and meetings from time to time for exchange of ideas and discussion of advances in knowledge of vegetable crops.

Chrysanthemum species that is used for extraction of Pyrethrum is C. cinerarifolium.
Pyrethrum is the name of the crude extract obtained from flowers of this plant.
Pyrethrum is used as an insecticide for scabies, head lice, crab lice and their nits. The active chemicals, the Pyrethrins, are toxic to insect nervous systems.

Beta vulgaris (Beetroot) belongs to the family Chenopodiaceae.
The Chenopodioideae are a subfamily of the flowering plant family Amaranthaceae, which is largely based on molecular phylogeny.
Beta vulgaris (beet) is a species of flowering plant in the subfamily Betoideae of the family Amaranthaceae or Chenopodiaceae.
Beta vulgaris is an herbaceous biennial or rarely, perennial plant up to 120 cm (rarely 200 cm) in height; cultivated forms are mostly biennial. The roots of cultivated forms are dark red, white or yellow and moderately to strongly swollen and fleshy.

Aroma containing compound in potatoes is Dimethyl pyrazine.
Dimethylpyrazine has chocolate, roasted, musty, nutty, grassy aroma and a musty potato, nutty, or oil taste. It occurs naturally in a wide number of foods including asparagus, black or green tea, beer, roasted coffee, potato chips, malt, soya, Swiss cheeses, wheat bread, mung beans, etc.
2-Ethyl-3, (5 or 6)-dimethylpyrazine, a heterocyclic, nitrogen-containing compound, is used in the food industry as a flavour ingredient for its characteristic roasted odour and flavour. It has also been used to artificially scent and enhances the flavour of potato chips.