Horticulture MCQ Question and Answer | Agriculture MCQ Question

National Biodiversity Authority is located in Chennai.
The National Biodiversity Authority (NBA) is a statutory autonomous body under the Ministry of Environment, Forests and climate change, Government of India established in 2003 to implement the provisions under the Biological Diversity Act, 2002.
Headquartered in Chennai, India, it acts as a facilitating, regulating and advisory body to the Government of India "on issues of conservation, sustainable use of biological resources and fair and equitable sharing of benefits arising out of the use of biological resources.”

Colour of a tomato is controlled by Two genes. “Tomato (Solanum Lycopersicum) has at least two genome triplications.”
Lycopene and b-carotene are major pigments in ripe tomatoes, the former being responsible for the red colour. In the yellow ripe fruit, lycopene concentration was 99.3% less than that present in red fruits.

The daily requirement of vitamin D for a healthy adult is 200 I.U.
The current recommendations suggest consuming 200 I.U. (10 - 20 mcg) of vitamin D per day. However, people who need more vitamin D can safely consume 1,000 - 4,000 I.U. (25 - 100 mcg) daily. Consuming more than this is not advised, as it is not linked to any extra health benefits.
Vitamin D helps regulate the amount of calcium and phosphate in the body. These nutrients are needed to keep bones, teeth and muscles healthy. A lack of vitamin D can lead to bone deformities such as rickets in children, and bone pain caused by a condition called osteomalacia in adults.

Hisar Shyamal is a variety of tomatoes.
This variety is developed at HAU, Hisar by crossing aushye × BR 112.
Plants are erect with purple green foliage from flowering onwards. Fruits are round, fleshy and bright purple with dark green purple pedicel. This variety is resistant to bacterial wilt and tolerant to lettle leaf.

In freezing crystallization principle is used.
Freezing, also known as solidification, is a phase transition where a liquid turns into a solid when its temperature is lowered below its freezing point.
Most liquids freeze by crystallization, the formation of a crystalline solid from the uniform liquid. This is a first-order thermodynamic phase transition, which means that as long as solid and liquid coexist, the temperature of the whole system remains very nearly equal to the melting point due to the slow removal of heat when in contact with air, which is a poor heat conductor.
Crystallization consists of two major events, nucleation and crystal growth.

Papaya is commercially propagated by seed.
Papaya is commercially propagated by seed and tissue culture plants. The seed rate is 250 - 300 g/ha. The seedlings can be raised in nursery beds 3 meters long, 1 m wide and 10 cm high as well as in pots or poly bags. The optimum temperature range is 21 - 27 degrees.
The papaya tree is a fast-growing, short-lived and tropical tree.

Super A among the following options is a recognized grading standard for tomatoes.
Sorting & Grading in India is generally done manually while mechanized grading by automatic grading lines based on size and weight is also practiced.
Tomato may be weight graded as small (< 100 g, medium (100 - 255 g) and large (> 255 g) or Super A, commercial, or size graded into 8 grades (i.e. 1 to 8) for fruits with size 30 to 102 mm.

Self-incompatibility seen in cole crops is Sporophytic.
Self-incompatibility, the recognition and rejection of self-pollen, is a widespread mechanism by which flowering plants prevent self-fertilization.
In the Brassicaceae (cole crops), the self-incompatibility phenotype of both stigma and pollen is determined sporophytically by the diploid S-locus genotype of the parent plant and dominance relationships between S-locus variants are observed in both stigma and pollen.

'RATNA' variety of mango is a cross of Neelam × Alphonso.
It is a hybrid variety released by Fruit Research Station, Vengurla. It is a regular bearing and produces medium sized fruits weighing an average of about 250 g.
Pulp is orange in colour and free from spongy tissue and fibre.

Double the number of plants than a square system of planting can be accommodated in both Cluster system and Quincunx system of planting.
Quincunx system is the square method but with one more plant in the centre of the square. This will accommodate double the number of plants, but does not provide equal spacing.
In cluster systems planting a plant, the cluster was defined as being an individual plant or a tightly clumped group of individual plants.