Horticulture - Study Mode

[#326] Gerbera variety suitable for cultivation under open conditions is
Correct Answer

(C) Arka Krishika

Explanation

Solution: Gerbera variety suitable for cultivation under open conditions is Arka Krishika. It has a stalk length of 39 cm and produces yellow colored double types, 3 - 6 flowers per plant. It is suited for open-grown conditions and used for cut flowers and flower decoration. Gerbera flowers are extensively distributed at heights of 1300 to 3200 meters. They grow well in states like Himachal Pradesh, Jammu & Kashmir and other Himalayan regions.

[#327] The yellow colour in onion is due to the pigment
Correct Answer

(B) Quercetin

Explanation

Solution: The yellow colour in the onion is due to the pigment Quercetin . Quercetin is the pigment that adds colour to many fruits and vegetables. It is found mainly in the skins and leaves of the plant. Its production is stimulated by the impact of light. It is a powerful antioxidant. The total content of quercetin in Onion is 300 mg/kg, which is considerably higher than in many other fruits and vegetables.

[#328] Blue mould rot in Citrus fruits is caused by
Correct Answer

(B) Penicillium italicum

Explanation

Solution: Blue mold rot in Citrus fruits is caused by Penicillium italicum . The species that most commonly cause postharvest spoilage of citrus fruit. The fungi gain entry if the fruit is damaged during handling and storage and then decay can spread from fruit to fruit. Blue mold and green mold are the primary post-harvest pathogen of citrus, and there are few effective control measures for sour rot, sour rot could be controlled by a low-temperature environment, but the chilling injury still causes major bottlenecks.

[#329] Panama disease of banana is prevented by
Correct Answer

(C) Application of lime to the soil

Explanation

Solution: Panama disease of bananas is prevented by the application of lime to the soil. Panama disease is a wilting disease caused by the fungus Fusarium oxysporum . The pathogen is resistant to fungicides and its control is limited to phytosanitary measures. Panama disease is one of the most destructive plant diseases of modern times.

[#330] Deficiency of which vitamin causes Beribery?
Correct Answer

(B) Vitamin-B1

Explanation

Solution: The deficiency of Vitamin-B1 causes Beribery . Beriberi is a disease caused by a Vitamin-B1 deficiency, also known as thiamine deficiency. It often occurs in developing countries among people with a diet that consists mostly of white rice or highly refined carbohydrates. To prevent beriberi, one should eat a nutrient-rich diet that includes foods rich in thiamine, that are beans, legumes, seeds, meat, fish, whole grains, nuts, dairy, etc.