Horticulture MCQ Question and Answer | Agriculture MCQ Question

The tetraploid variety of medicinal solanum is Arka Mahima.
'Arka Sanjeevini' and 'Arka Mahima' are the two diploid and tetraploid varieties of this crop developed at the Indian Institute of Horticultural Research, Hessarghatta, Bangalore and released for cultivation.
It is used as raw materials for the production of steroidal drugs, steroid-bearing solanum holds an important place due to its quick growth and low initial investment in its commercial cultivation.
It yields a glycoalkaloid, solasodine, a nitrogen analogue of diosgenine.

There are six types of vegetable gardens based on the purpose for which they have been developed.
A vegetable garden helps us eat more fresh fruits and vegetables.
These vegetable gardens are (i) home or kitchen gardens (ii) market gardens (iii) truck gardens, (iv) gardens for processing (v) gardens for seed production.

The tag colour of the certified seed is Azure blue.
The progeny of foundation seed is produced by registered seed growers under the supervision of seed certification agencies to maintain the seed quality as per minimum seed certification standards.
An azure blue colour certificate is issued by a seed certification agency for this category of seed.

Rose belongs to the family Rosaceae.
Rosaceae, the rose family, is a medium-sized family of flowering plants that includes 4,828 known species in 91 genera.
A rose is either a woody perennial flowering plant of the genus Rosa, in the family Rosaceae, or the flower it bears. There are over three hundred species and tens of thousands of cultivars. They form a group of plants that can erect shrubs, climb, or trail, with stems that are often armed with sharp prickles.

Amphidiploid cucurbit is Pumpkin.
Amphidiploid is an interspecific hybrid having a complete diploid chromosome set from each parent form. Or in other words, it can be called an organism produced by the hybridization of two species followed by chromosome doubling.
A pumpkin is a cultivar of winter squash that is round with smooth, slightly ribbed skin and is most often deep yellow to orange in coloration. The thick shell contains seeds and pulp.

A refractometer is used to determine T. S. S. (total soluble solids).
The refractometer is a well-established instrument used for measuring the water content of liquids. It measures the refractive index of the liquid, which changes according to the moisture content.
The destructive method of TSS measurement is usually performed by a refractometer. The measurement is done by dripping the liquid fruit extract on the detector. TSS value is expressed by %Brix, the value displayed is based on a ratio of the speed of light in a vacuum and the speed of light through the sample.

All the given options, like colocasia, Potato, and Yams are tubers whereas Turnip is not a tuber it is an edible root crop.
The turnip or white turnip is a root vegetable commonly grown in temperate climates worldwide for its white, fleshy taproot. As a root crop, turnips grow best in cool weather; hot temperatures cause the roots to become woody and bad-tasting.
Turnips are a biennial plant, taking two years from germination to reproduction. The root spends the first year growing and storing nutrients, and in the second year, the flowers produce seeds and die.

Plant Introduction Scheme was sanctioned at IARI, New Delhi in 1947.
The ICAR scheme for “Plant Introduction” commenced functioning in 1946 in the Botany Division of IARI under the leadership of the late Dr. Harbhajan Singh as the first ‘Operational Scientist’. The unit was further expanded and strengthened as ‘Plant Introduction and Exploration Organization’ in the Botany Division in 1956 and later developed as a separate ‘Division of Plant Introduction’ in IARI in 1961.
It was upgraded to an independent institute 'The National Bureau of Plant Introduction' in August 1976 which was rechristened as 'The National Bureau of Plant Genetic Resources' in January 1977.

Cytokinin is the growth regulator that is recommended for the maintenance of freshness in cut leafy vegetables.
Cytokinin is the plant hormone that is found to have profound effects in delaying the ageing of plants and thus increases the shelf life of vegetables and fruits.
It promotes cell division and increases cell expansion during the proliferation and expansion stages of leaf cell development, respectively.

The true potato seed concept was 1st realized to raise a commercial crop in India by Dr. S. Ramanujan.
It was first evolved through sexual reproduction by Ramanujam in 1957 and subsequently, its commercial viability was tested. However, the high heterozygosity of seedlings of TPS and uniformity in crop hampered its commercial adoption by farmers.
This technique is used for disease-free seed production. It is the technique for virus-free seed production. The cost of tuber-treating chemicals is also reduced because of the relatively lesser volume of tuberlets.