Horticulture MCQ Question and Answer | Agriculture MCQ Question

The nutrient involved in oil-biosynthesis is Sulphur.
Oil crops respond to the application of sulphur, moreover, the sulphur requirement is the highest in oil crops in comparison with other crops, which is related to the role of this nutrient in oil biosynthesis.
Sulphur is a component of plant amino acids, proteins, vitamins and enzyme structures. Sulphur is essential for many growth functions in plants including nitrogen metabolism, enzyme activity, and protein and oil synthesis.

Sweet potato belongs to the family Convolvulaceae.
The sweet potato or sweet potato (Ipomoea batatas) is a dicotyledonous plant that belongs to the bindweed or morning glory family, Convolvulaceae.
Sweet potato is native to the tropical regions of the Americas. Of the approximately 50 genera and more than 1,000 species of Convolvulaceae, I. batatas are the only crop plant of major importance some others are used locally, but many are poisonous.
Its large, starchy, sweet-tasting tuberous roots are used as a root vegetable.

The triploid species of Citrus is Citrus latifolia.
It is also known by other common names such as seedless lime, Bearss lime and Tahiti lime. It is a citrus fruit species of hybrid origin, known only in cultivation. The Persian lime is a triploid cross between key lime (Citrus × aurantiifolia) and lemon (Citrus × limon).
The fruit turns yellow as it ripens, but it is universally sold while still green. It is larger, thicker-skinned, with less intense citrus aromatics than the key lime.

Garden lanterns, garden pagodas, garden bridges, tea gardens, and flat gardens are the unique feature of the Japanese garden.
These are traditional gardens whose designs are accompanied by Japanese aesthetics and philosophical ideas, avoid artificial ornamentation and highlight the natural landscape.
Three of the essential elements used to create a Japanese garden are stone, which forms the structure of the landscape; water, representing life-giving force; and plants, which provide the colour and changes throughout the seasons.

Guava bears fruits on Mixed bearings.
It is one of the most common and major fruits of India and is considered the fourth most important fruit in the area and production after mango, banana and citrus. It is a hardy and prolific bearer and highly remunerative fruit.
While guava can be grown from seed, it will not be true to the parent and may take up to 8 years to produce fruit. Trees are more commonly propagated via cuttings and layering. In this case, guava tree fruiting should occur when the tree is 3 - 4 years of age.

Monoembryoic variety of Mandarin is Temple.
Temple oranges, also known as tangor, are hybrid citrus fruits. They're hybrids of the mandarin orange and the sweet orange. The name tangor is a combo of tangerine and orange.
Spicy sweet, with a hint of sparkling tartness, the Temple is one of the more full-flavored, complex citrus fruits you can buy. Temple Oranges have little to no seeds, the seeds are monoembryonic.

Storing seeds at freezing temperature is Ex-situ conservation.
Ex situ conservation means, "off-site conservation". It is the process of protecting an endangered species, variety, or breed, of plant or animal outside its natural habitat.
Seeds were stored in paper bags and either kept in a cold chamber (7 ± 2°C) in the dark (ex situ conservation) or buried in the soil to a depth of 5 cm in an area of the natural occurrence of the species (in situ conservation).
Ex situ conservation is the most efficient way to maintain the viability of the seeds of this endangered species.

Night Blindness is caused by the deficiency of Vitamin-A.
Night blindness is the difficulty for the eyes to adjust to dim light. Affected individuals have poor vision in the darkness but see normally when adequate light is present.
A deficiency of vitamin A is a lack of vitamin A in blood and tissues. Vitamin A deficiency is the world's leading cause of preventable childhood blindness.
Concentrations of preformed vitamin A are highest in the liver, fish, eggs, dairy products, and orange and other yellow fruits and vegetables.

The yellow colour of tomato is due to carotene.
Relative to phytonutrients, the most abundant in tomatoes are the carotenoids. Lycopene is the most prominent carotenoid followed by beta-carotene, gamma-carotene and phytoene as well as several minor carotenoids.
During ripening, the colour of the tomato turns from green to red. The carotenoid pigment lycopene produces this red colour. Lycopene is the red carotene that is synthesized as a result of the breakdown of chlorophyll.

The botanical family of Lotus is Nymphaceae.
Nymphaeaceae is a family of flowering plants, commonly called water lilies. They live as rhizomatous aquatic herbs in temperate and tropical climates around the world.
Lotus is one of two extant species of aquatic plant in the family Nelumbonaceae. It is sometimes colloquially called a water lily, though this more often refers to members of the family Nymphaeaceae.
Lotus plants are adapted to grow in the flood plains of slow-moving rivers and delta areas.