Horticulture - Study Mode
[#911] Fruits of cabbage are known as
Correct Answer
(C) Siliqua
Explanation
Solution: Fruits of cabbage are known as Siliqua . Siliqua is the type of fruit present in the mustard family Brassicaceae. It is a type of dry fruit that separates into two or three segments at maturity. These segments are called valves. An example of siliqua is cabbage.
[#912] Litchi is commercially propagated by
Correct Answer
(C) Air layering
Explanation
Solution: Litchi is commercially propagated by Air layering . Air-layering or 'Gootee' is a widely accepted method of propagation in India. In this method, a healthy and vigorous, upright twig of about one year old and 2.5 to 4 cm in diameter is selected. A circular strip of bark about 2 cm wide just below a bud is completely removed from the selected twig. The most commonly used commercial method of propagation of litchi is air layering. Litchis can also be propagated by seeds, grafting or cuttings. The highly heterozygotic characteristic of this species prevents the commercial propagation by seeds.
[#913] Sulphur containing food is stored in
Correct Answer
(B) SR cans
Explanation
Solution: Sulphur-containing food is stored in SR cans. SR cans are sulphur resistant cans. The sulfur-resistant lacquer is also of golden colour and the cans coated with it are called C-enamel cans or SR cans. Sulphur-containing foods are peas, beans, cauliflower, cabbage, Brussels sprouts, potatoes, swedes and turnips, meat and meat products, poultry products, fish and mushrooms.
[#914] Pusa Mukta, an improved variety of cabbage is resistant to
Correct Answer
(B) Black rot
Explanation
Solution: Pusa Mukta, an improved variety of cabbage is resistant to Black rot . This is a new variety developed by the Indian Agricultural Research Institute, Katrain, by hybridization between EC 24855 x EC 10109. The light green foliage with wavy margins is a distinguishing characteristic of the variety. The heads are compact and slightly flattish round with loose wrapper leaves at the top. The average head weight is 1.5 - 2.0 kg. The average yield is 25 - 30 t/ha. It is resistant to black rot.
[#915] The breakdown of vertical resistance due to the development of a new physiological race is
Correct Answer
(A) Vertifolia effect
Explanation
Solution: The breakdown of vertical resistance due to the development of a new physiological race is the Vertifolia effect . The Vertifolia effect is a well-documented phenomenon in the fields of plant breeding and plant pathology. It is characterized by the erosion of a crop's horizontal resistance to disease during a breeding cycle due to the presence of strong vertical resistance, characterized by the presence of R genes.