Horticulture MCQ Question and Answer | Agriculture MCQ Question

Radish is the vegetable among the given options that is not transplanted.
Radish is a root crop and root crops are not suited to transplants as the process will damage the root.
The purpose of transplanting is to give each plant more space. Then the plant can develop its roots and leaves better.

Vegetable that is a rich source of ascorbic acid among the given options is Chilli.
The most important vitamin in fruits and vegetables is vitamin C. 90% of the ascorbic acid in human diet was supplied by them.
Chilli can give more vitamin C than an orange. These fiery peppers beat oranges 3 to 1 in terms of the immune-boosting nutrient. It is said that a half cup of chopped or diced chilli peppers can deliver 107.8 mg of vitamin C.
Hot chilli peppers are packed full of nutrients and antioxidants, including vitamin C, which can help boost your immunity and offer a wide range of health benefits.

Potato tubers contain less than 20 mg solanine per 100 g fresh weight and is considered safe for human consumption.
Solanine is naturally present in all potatoes, generally in the upper one-eighth of the skin. It is a colorless alkaloid with a bitter taste. Percentage of its amount is observed more in green potatoes.
Solanine is not removed by boiling, but it can be destroyed by frying.

Pungency in Chilli is due to presence of Capsaicin.
The pungent feeling caused by allyl isothiocyanate, capsaicin, piperine and allicin is caused by activation of the heat thermo and chemosensitive TRP ion channels including TRPV1 and TRPA1 nociceptors. The pungency of chilies may be an adaptive response to microbial pathogens.

Indicator plant for tristeza virus in citrus is C. aurantifolia.
CTV is citrus tristeza virus, it is a viral species of the genus closterovirus that causes the most economically damaging disease of citrus.
CTV is classically diagnosed by graft-inoculating a Mexican lime (Citrus aurantifolia) with tissue from a diseased plant. Symptoms on the leaves begin as clear veins that turn corky, which is then followed by chlorosis and cupping of the leaf.

The modern method of propagation of ‘Guava’ is Stooling.
It is the easiest and cheapest method of guava propagation which has been standardized at Indian Agricultural Research Institute (IARI), New Delhi.
In this method plants are headed back to ground and shoots are allowed to develop on the beheaded stumps.

Conditioning involves the preparation of cut plant material prior to its arrangement, to ensure that its life is not unduly shortened. Correct conditioning will make sure that flowers and foliage last for the maximum time, providing the most value and enjoyment.
Conditioning in cut flowers is done to restore turgidity. It restores the turgor of flowers wilted after harvest, storage or transport. Conditioning is done with demineralized water supplemented with germicides and acidified with citric acid.

Method of training for Kiwi fruit is T-bar system.
T-bar or pergola system is ideal for training. In this method, a spacing of 4 metre from row to row and 5 - 6 m from plant to plant should be maintained.
Pruning is an essential operation in kiwi cultivation because the fruits develop only on current season growth, arising from the buds developed in the previous year. Only basal 3 - 6 buds of the current season growth are productive.

'Sui generis’ is a Latin phrase which means a system of its own, therefore ‘unique’ in other terms.
In terms of Biology, it is used for species that do not fit into a genus that includes other species.
In horticulture, it is used by the plant breeders, to make treaties to adopt a sui generis system of protection for a specific plant type.

Stone or epicotyl grafting is a simple, cheap and quick method of mango propagation with a success rate of 75 - 80%.
Strawberries cannot be propagated by cuttings. So, it is wrongly matched pair. It can propagated by runners.
Tongue or whip grafting is one of the oldest methods of asexual plant propagation. It is predominant propagation method used on apples.
Ring or annular budding is a type of budding, in this a complete ring of bark is removed from the stock and it is completely girdled. It is used in jujube propagation.