Horticulture MCQ Question and Answer | Agriculture MCQ Question

Soil binding aromatic crops is Vetiver.
Vetiver is sometimes applied directly to the skin for relieving stress, as well as for emotional traumas and shock, lice, and repelling insects. It is also used for arthritis, stings and burns. Vetiver is sometimes inhaled as aromatherapy for nervousness, insomnia, and joint and muscle pain.
The roots are woven into mats, and hand fans and are also used in air coolers. Vetiver is planted in sloppy areas to prevent soil erosion as it binds with the soil.

The major Alkaloid in Ashwagandha is Withanine.
The biologically active chemical constituents of Withania somnifera (WS) include alkaloids (isopelletierine, anaferine, cuseohygrine, anahygrine, etc.), steroidal lactones and saponins.
Withanine, a group of alkaloids isolated from the roots of the plant, forms 38% of the total weight of alkaloids. The principal withanolides extracted from W. somnifera in India were withanolide D and withaferin A which exhibited antitumor and cytotoxic properties.

Pointed gourd (dioecious) is propagated by Stem cutting.
Trichosanthes dioica, also known as a pointed gourd, is a vine plant in the family Cucurbitaceae, similar to cucumber and squash, though unlike those it is perennial. It is a dioecious vine plant with heart-shaped leaves and is grown on a trellis.
It is normally propagated through stem cuttings & root suckers. Its seeds are not used in planting due to poor germination & inability to determine the sex of plants before flowering.

Litchi is propogated by air layering.
Air-layering or 'Gootee' is a widely accepted method of propagation in India. In this method, a healthy and vigorous, upright twig of about one year old and 2.5 to 4 cm in diameter is selected. A circular strip of bark about 2 cm wide just below a bud is completely removed from the selected twig.
The most commonly used commercial method of propagation of litchi is air layering. Litchis can also be propagated by seeds, grafting, or cuttings. The highly heterozygotic characteristic of this species prevents the commercial propagation by seeds.

Cum-swelling is due to Clostridium botulinum.
Clostridium botulinum is a Gram-positive, rod-shaped, anaerobic, spore-forming, motile bacterium with the ability to produce the neurotoxin botulinum.
The botulinum toxin can cause botulism, a severe flaccid paralytic disease in humans and other animals. It also causes swelling.

Induction of more staminate flowers in cucurbits is seen under Long day conditions.
Cucurbits have distinct, separate male and female flowers. This is a female flower and you can see the fruit right underneath it and over here is a simple male flower.
The sterility is non-genetic, non-heritable, and induced with the help of chemicals that make the male part abortive, known as chemical-induced male sterility.
Ethylene is the main factor of flower sex differentiation in the buds of the Cucurbitaceae family, which induces the femaleness of flowers. Induction of male flowering in gynoecious cucumbers by silver ions especially in long-day conditions.

The intergeneric hybrid of apple and pear is Papple.
An intergeneric hybrid is a cross between plants in two different genera in the same family. They are closely related enough that pollination will produce a hybrid, though the seeds of this hybrid are usually sterile.
The Papple is a cross between Chinese and Japanese pear species. It is highly attractive with a red-orange blush over a yellow background. It has a mild sweet tropical flavour with a crisp and juicy texture. Papple is ready to eat and does not need time to ripen and soften.

BH-2 is a hybrid variety of brinjal which is most suitable for Bartha making.
It is a hybrid between EP65 × Pusa Uttam. Moderately tolerant to shoot (7.26%) and fruit borer (16.50%). Fruits are medium-sized, slightly oblong and glossy violet in colour Fruits contain 16.5 mg/100 g ascorbic acid. Recommended under irrigated conditions during July - December and January - June. High yielding (58 t/ha) in a crop duration of 120 - 130 days.

Onion and garlic are peeled by the Flame peeling method.
It is the process of exposure of fruit or vegetables to intense heat to char the peel and facilitate its rapid removal by a powerful stream of water.
It is used in onions, garlic and Brinjal. The peeler consists of a conveyor belt that carries and rotates food through a furnace heated to more than 1000 degrees Celcius. The outer layer and root hairs of onion are burnt off and charred skin is removed manually.

Jaffna is a cultivar of Drumstick.
It is introduced in Sri Lanka. Highly suited for coastal tracts of Tamil Nadu, Kerala and Karnataka. It bears long pods (60 - 90 cm) and soft flesh of good taste.
The traditional 40 years old Jaffna Moringa has been grown in Thangachimadam areas and the cutting was brought from Jaffna, Sri Lanka during the cargo service between India and Sri Lanka. It comes very well in coastal sandy soils.
A 40-year-old tree gives 1500 moringa sticks daily between March - June. They apply only organic manures such as goat manure to the tree. It is not usually affected by pests and diseases. The rainy season of October, November and December is the off-season for moringa trees.