Horticulture MCQ Question and Answer | Agriculture MCQ Question

Black tip in mango is a physiological disorder due to Carbon monoxide.
It is a serious disorder, particularly in the cultivar Dasheri. The affected fruits become unmarketable and reduce the yield to a considerable extent.
The damage to the fruits gets initiated right at the marble stage with a characteristic yellowing of tissues at the distal end.
The black tip is a serious disorder that occurs in orchards located close to brick kilns. Gases like carbon monoxide, sulphur dioxide, and ethylene constituting the fumes from the brick kiln are known to damage the growing tip of fruits and give rise to the symptoms of the black tip.

The major aroma component in cooked cabbage is Dimethyl trisulphide.
Dimethyl trisulfide (DMTS) is an organic chemical compound and the simplest organic trisulfide, with the chemical formula CH₃SSSCH₃.
Dimethyl trisulfide was identified as a major aroma component in cooked Brassicaceous vegetables. It is proposed that the strong unpleasant aroma which is characteristic of overcooked Brassicaceous vegetables is due to the gradual loss of pleasant volatile components and resultant “unmasking” of the unpleasant sulfur components.

Flavour in cabbage leaves is due to the glycoside Sinigrin.
Cabbage (Brassica oleracea var capitata) is a small, leafy biennial producing a compact globular mass of smooth or crinkled leaves wrapped over each other known as head. The outer leaves are generally larger than the inner.
Flavour in cabbage leaves is due to the glycoside sinigrin. Cabbage contains goitrogens which cause enlargement of thyroid glands.
The major cabbage-producing states are Uttar Pradesh, Odisha, Bihar, Assam, West Bengal, Maharashtra and Karnataka.

Inbreeding depression is highest in Carrot.
Inbreeding depression is one of the leading factors preventing the evolution of self-fertilization in plants. In populations where self-fertilization evolves, theory suggests that natural selection against partially recessive deleterious alleles will reduce inbreeding depression.
Inbreeding depression is high in a self-incompatible perennial herb population like a carrot but absents in a self-compatible population showing mixed mating.

Pollen sterility is a serious problem in Ber.
Male sterility in plants implies an inability to produce or release functional pollen and is the result of the failure of the formation or development of functional stamens, microspores or gametes.
Ber - Zizyphus mauritiana Lamk. Belongs to the Family: Rhamnaceae. Ber or Indian jujube is indigenous to India. The main drawback of seed propagation is that fruits are small and of poor quality.

While applying DAP (as a basal dose), it should be never mixed with Zinc.
DAP (Diammonium phosphate) is a concentrated phosphate-based fertilizer. Phosphorus is an essential nutrient along with Nitrogen and plays a vital role in the development of new plant tissues and the regulation of protein synthesis in crops.
Basal, spraying fertilizer, or broadcasting fertilizer in field mix or seeds treating, zinc sulphate fertilizer cannot be mixed with any phosphate fertilizer, as it would produce zinc phosphate that is not easily dissolved in water.

The leaf curl virus of chili is transmitted by a White fly.
Chilli leaf curl virus is transmitted by whiteflies (Bemisia tabaci) and is a serious threat to chili fields.
Symptoms include the upward curling of leaves, plant stunting, and yield reductions. There are no treatments for viruses. Infected pepper plants cannot be cured; therefore, the focus should be on prevention.

The triple disease-resistant variety of tomatoes is Arka Samrat.
High-yielding F₁ hybrid developed by crossing IIHR-2835 X IIHR-2832. It is the first F₁ Hybrid with triple disease resistance to ToLCV, BW and early blight.
Fruits are oblate to high round, large (90 - 110 g), deep red and firm. It is suitable for a fresh market and the yield is 80 - 85 t/ha in 140 days.

Friendship fruit is the term given to Pineapple.
Pineapple is a symbol of hospitality, prosperity, friendship and diplomacy. The Pineapple across Continents has come to mean sharing, caring and friendship, and is the symbol of hospitality.
The strange-looking fruit was once popular as an architectural feature on buildings and in sculptures and its connection to travel, hospitality and luxury is probably related to Christopher Columbus.

Amrapali is one of the following that is a regular bearing variety of mangoes.
The 'Amrapali' mango is a named mango cultivar introduced in 1971. It was developed as a hybrid variety of 'Dasheri' and 'Neelum' by Dr. Pijush Kanti Majumdar at the Indian Agriculture Research Institute in Delhi. Amrapali Mango was first planted in West Bengal in Chakdaha, Nadia district.
The tree is a dwarf, regular-bearer, with clusters of small-sized fruits. Its flesh is a deep orange-red and contains approximately 2.5 - 3.0 times more β carotene content than other commercial varieties of mango.