Horticulture MCQ Question and Answer | Agriculture MCQ Question

NRC of Orchids is located in Sikkim.
The National Research Centre for Orchids was established on 5^th October 1996 by the Indian Council of Agricultural Research (ICAR), New Delhi to organize a program on improvement in productivity, quality and commercialization of orchids.
The basic objective for setting up this centre was to provide research support to the upcoming orchid industry and conserve and use orchid genetic resources available in the country.

Optimum seed rate for turnip is 3 - 4 (kg/ha).
Seeds are sown directly in the main field. The seeds are sown thinly at 1 - 1.5 cm deep in drills 10 - 15 cm apart.
Seed rate is the quantity of seed of a crop that is required to sow a unit area of land for optimum crop production.

Samrat is a cultivar of Sweet potato.
Selection is from the open-pollinated seedling progeny.
Tubers are fusiform with light pink skin and white flesh.
These are early maturing varieties with a tuber yield of 18 - 24 t/ha.
It is moderately resistant to sweet potato weevil.

The best rootstock for citrus in south India is Rangpur lime.
It is the most utilized rootstock in Sao Paulo due to its heavy and early bearing and drought resistance.
It is resistant to Tristeza but susceptible to Blight and Sudden Death. In areas of high disease incidence, Rangpur lime has been replaced or used in conjunction with a second rootstock on the same plants.

Redness in the apple is due to Anthocyanin.
Anthocyanins are coloured water-soluble pigments belonging to the phenolic group. The pigments are in glycosylated forms.
Anthocyanins responsible for the colours, red, purple and blue, are in fruits and vegetables. Berries, currants, grapes, apples and some tropical fruits have high anthocyanin content.
One of the most common anthocyanin pigments is cyanidin, which, in the form of cyanidin 3-O-galactoside, is the pigment primarily responsible for red colouration in apple skin.

Localized incompatibility in grafting is overcome by the Use of Interstock.
Localized incompatibility is a Graft combination in which a mutually compatible inter stock overcomes the incompatibility of the scion and rootstock.
The inter stock is a segment of a tree trunk that is grafted between the rootstock and the tree. It has been used with different fruit trees to modulate the tree size, fruit production and quality and the aging of the tree. Inter stock allows the union of incompatible varieties or induces dwarfing.

Extremely high respiratory activity (> 60 mg CO₂ kg^-1 hour^-1) is found in Asparagus vegetables.
Asparagus officinalis is a perennial flowering plant species in the genus Asparagus. Its young shoots are used as a spring vegetable.
Asparagus is classified as perishable due to a high respiration rate and rapid degradation of quality. As respiration indicates metabolic activity it seems logical that it determines the rate at which a product deteriorates.

Defense Food Research Laboratory (DFRL) is situated in Mysore.
The Defence Food Research Laboratory (DFRL) is an Indian defence laboratory of the Defence Research and Development Organisation (DRDO) established on 28^th December in the year 1961. The present director of DFRL is Dr. A. D. Semwal.
It conducts research and development of technologies and products in the area of food science and technology to cater to the varied food challenges for the Indian Armed Forces.

The first Project Director for PDVR was Dr. G. Kalloo.
PDVR is the Project Directorate of Vegetable Research, under IIVR, Varanasi.
In the year 1991, Dr. G. Kalloo joined PDVR as the first Project Director. Later in the year 1992, the Headquarters of PDVR shifted from New Delhi to Varanasi.
He was former DDG (Crop Science), ICAR, New Delhi and vice-chancellor, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur in 2017. He has written several books including Genetic improvement of Tomatoes and many other vegetables, because of which he is regarded as the father of tomato.

The mutant variety of almonds is Supernova.
It is a late-flowering self-compatible mutant, obtained by the irradiation of the early-flowering self-incompatible cultivar 'Fascionello'.
This cultivar has a Semi-entire shell, Late ripening, productive and self-fertile.
Suitable in warm weather; fear frost but the best variety bloom later than those that are grown old.