Horticulture MCQ Question and Answer | Agriculture MCQ Question

The economic part of Pimenta dioica is Dried berries.
Allspice is the dried fruit of the Pimenta dioica plant.
The fruits are picked when green and unripe and are traditionally dried in the sun. When dry, they are brown and resemble large, smooth peppercorns.
Fresh leaves are similar in texture to bay leaves and similarly used in cooking. Leaves and wood are often used for smoking meats where all spice is a local crop.

Ricyness, fuzziness, leafyness and browning are physiological disorders of cauliflower.
Ricyness is the velvety or granular appearance on the surface of the curd mainly due to temperature fluctuations.
Fuzziness is the phenomenon when the flower pedicels become velvety and curd elongates. The cultivation of the cultivars out of their normal growing season encourages this disorder.
Leafiness is the disorder in which the formation of small thin leaves from the curd reduces the quality of curd occurs.
Browning is a disorder in cauliflower caused due to boron deficiency.

Catechol is a phenolic factor present in onion that has anti-fungal properties.
The pungency in onion is due to sulphur bearing compound in the volatile oil allyl propyl disulphide.
The red colour of the outer skin of onion bulbs is due to protocatechoic and catechol a phenolic factor present in red onions which also has antifungal properties.

The low chilling variety of pear is Punjab Nectar. It can tolerate very low temperatures below zero degrees and can stand high temperatures.
It is a low chilling and semi-soft variety of pear. Trees of medium height. Fruits are medium to large size. Fruits are yellow-green with white flesh. On ripening become juicy. It gets a mature week of July. It gives an average yield of 80 kg per tree.

In tomatoes, the anti-freeze gene has been transferred from Fish. The tomato gained the moniker 'fish tomato'. The anti-freeze protein was found to inhibit ice recrystallization.
Other genes from various species have been inserted into the tomato with the hope of increasing their resistance to various environmental factors.
A genetically modified tomato or transgenic tomato is a tomato that has had its genes modified, using genetic engineering.

A balanced diet includes at least 300 g of vegetables.
Vegetables add roughage and fibres along with vitamins and minerals to the diet which is required for the proper functioning of our body.
A diet rich in vegetables and fruits can lower blood pressure, reduce the risk of heart disease and stroke, prevent some types of cancer, lower the risk of eye and digestive problems and have a positive effect on blood sugar.

An improved variety ‘Pusa Mukta’ of cabbage is resistant to Black rot.
Pusa Mukta is a variety of cabbage with heads flattish round, medium-sized with light green outer leaves, weighing 1.5 - 2 kg each. The average yield is 25 - 30 t/ha.
It is tolerant of Black rot disease that is caused by the bacterium Xanthomonas campestris and it is a significant disease of cabbage and other crucifer crops worldwide.

Lal Bagh Botanical Garden or simply Lalbagh is located in Bengaluru, Karnataka, India.
Hyder Ali commissioned the building of this garden in 1760 but his son, Tipu Sultan, completed it. A Bagh is Hindustani for the garden while the reference of the prefix Lal is debated and could refer to the colour red due to its original floral composition but Lal also means "beloved".
It was responsible for the introduction and propagation of numerous ornamental plants as well as those of economic value. It also served a social function as a park and recreational space.

Big Vein of lettuce is a viral disease that affects lettuce crops.

The disease is transmitted by a soil-borne fungus called *Olpidium brassicae*.

Olpidium brassicae does not cause the disease directly but acts as a vector that transmits the Mirafiori lettuce big-vein virus (MLBVV) into the plant.

This fungus infects the roots of the lettuce plant and facilitates the entry of the virus that leads to the characteristic enlarged veins in the leaves.

Nematodes, bacteria, and aphids are known to spread other types of plant diseases, but they are not responsible for transmitting Big Vein disease in lettuce.

Therefore, the correct answer is Fungus.

Vegetable cultivation is mostly concentrated in peri-urban areas.
Peri-urban areas are zones of transition from rural to urban land uses located between the outer limits of urban and regional centres and the rural environment. The boundaries of peri-urban areas are porous and transitory as urban development extends into rural and industrial land.