Horticulture MCQ Question and Answer | Agriculture MCQ Question

The process of removal of gases from the can before the seal is called Exhausting.
It is the removal of dissolved gases from liquids, especially water or aqueous solutions. There are numerous methods for removing gases from liquids.
In canning the objective of exhausting containers is to remove air in the product so that the pressure inside the container, following heat treatment and cooling, will be less than atmospheric.

The term 'recon' was coined by Benzer.
Recon is the unit of recombination that is the smallest unit capable of undergoing recombination is called recon.
A recon is further subdivisible into units of mutations called mutons, and several mutons in a recon will not be separable due to recombination.

Dormancy in potatoes can be broken by the use of Thiourea, Ethylene chlorohydrin and Potassium thiocyanate.
Potato tuber dormancy is defined as an inability to sprout under conditions that are favorable for sprouting.
Thiourea - soaking the potato tuber in 1%, aqueous solution for 85 hour is suggested to break the tubers' dormancy.
Ethylene chlorohydrin is highly volatile and the gas aids in breaking dormancy. Remove the tubers, air-dry, and hold at 18 - 25°C.
Potassium thiocyanate solutions gave excellent results in forcing early sprouting. The rest period of cut sets was materially shortened when the tubers were soaked in 3- or 2-percent solutions of potassium thiocyanate.

The main aromatic component in Clove is Eugenol.
Eugenol is the main bioactive compound of clove, which is found in concentrations ranging from 9381.70 to 14650.00 mg per 100 g of fresh plant material. About the phenolic acids, gallic acid is the compound found in higher concentrations (783.50 mg/100 g fresh weight).

The stem above the ground in the banana is known as pseudostem.
The pseudostem is the part of the banana plant that looks like a trunk. It is formed by tightly packed overlapping leaf sheaths. Even though the pseudostem is very fleshy and consists mostly of water, it is quite sturdy and can support a bunch that weighs 50 kg or more.

The most ancient type of vegetable garden is both the Kitchen garden and Home garden.
The kitchen garden is a space separate from the rest of the residential garden, the ornamental plants and lawn areas. It is used for growing edible plants and often some medicinal plants.
Home gardens and small animal rearing are key practices to increase household food production, food security, and nutrition through increasing consumption of nutritious vegetables, fruit and animal source foods.

Fruits of vegetable marrow are ready for 1^st picking after 60 - 80 days.
The first harvesting of vegetable marrow was done at 64 - 65 days after sowing (DAS) in case of direct seeding and at 22 - 31 days after transplanting in case of seedlings by hand picking. Marrow is a cucurbit, which means it's from the same family as the melon, cucumber, squash and courgette.
Marrows, like zucchini, are low in food energy (approximately 71 kJ or 17 kcal per 100 g fresh marrow) and contain useful amounts of folate, potassium and provitamin A.

Bolting problems in onions occur when the temperature goes below 10°C.
The term bolting in onion means pre-emergence of seed stalks before the time of their formation at the cast of bulb formation and development. Bolting is an undesirable character because it directly affects the bulb yield of onion.
Rabi onion starts to bolt at 20 - 25°C temperature. Early transplanting (August) and late (end of December-January) induce bolting in Kharif and Rabi onion, respectively. The restricted or poor vegetative growth also leads to bolting.
It can be controlled by adjusting the time of transplanting in such a way that the crop may expose to a moderate temperature at bulbing. The maturity of the Rabi crop coincides with high temperature compared to the Kharif crop.

Sree Dhara is a variety of Chinese potatoes.
'Sree Dhara' was developed by the CTRI, in Sreekaryam in Thiruvananthapuram.
It is a high-yield Coleus variety with good cooking quality. It is the first variety of Chinese potatoes. The maturity duration is 5 months and the average yield is 25 - 28 T/Ha. It is a good variety of Chinese potatoes.
The starch content of the tubers is 19.5 %. Bushy compact plant type. It bears a cluster of dark brownish, heteromorphous tubers. The tubers possess an aromatic flavour. Used mainly as a vegetable.

1^st Hybrid tea rose variety developed was La France.
'La France' is a pink rose found in France in 1867 by the rosarian Jean-Baptiste André Guillot (1827 - 1893). It is generally accepted to be the first hybrid tea rose.
Hybrid tea is an informal horticultural classification for a group of garden roses.
Hybrid tea flowers are well-formed with large, high-centered buds, supported by long, straight and upright stems. Each flower can grow to 8 - 12.5 cm wide. Hybrid teas are the largest and most popular group of roses, due to their elegant form and the large variety of colours.