Plant Pathology - Study Mode

[#711] Which of the following elements is highly mobile?
Correct Answer

(C) P

Explanation

Solution: The potassium element is highly mobile among all the given options. Potassium is a highly mobile element in the plant and is translocated from the older to younger tissue. Potassium deficiency symptoms usually occur first on the lower leaves of the plant and progress toward the top as the severity of the deficiency increases.

[#712] Stem galls of coriander (Coriandrum sativum) is caused by
Correct Answer

(A) Protomyces macrosporus

Explanation

Solution: Stem galls of coriander (Coriandrum sativum) are caused by Protomyces macrosporus. Stem gall caused by the fungus Protomyces macrosporus L. is a serious disease of coriander damaging all the aerial plant parts incurring heavy losses as the market value is reduced. In India, the stem gall disease of coriander was reported for the first time from Pusa (Bihar) by Sydow and Butler (1911).

[#713] At high oxygen concentration, the rate of photosynthesis decreases due to
Correct Answer

(A) Warburg effect

Explanation

Solution: At high oxygen concentration, the rate of photosynthesis decreases due to Warburg effect. The Warburg Effect is defined as an increase in the rate of glucose uptake and preferential production of lactate, even in the presence of oxygen. This phenomenon, originally known as the “Warburg effect,” was later recognized as the light-dependent release of CO 2 by photosynthetic organisms, or photorespiration, and was the subject of intense investigation and debate for many decades.

[#714] Where is Indian Type Culture Collection Centre located?
Correct Answer

(D) New delhi

Explanation

Solution: The Indian Type Culture Collection Centre is located in New Delhi. The Indian Type Culture Collection (ITCC) was established in 1936 with the aim to provide knowledge and to furnish database for living plant associated fungi. It is the oldest fungal genetic resource centre in India. ITCC is an affiliate member of the World Federation for Culture Collections (WFCC) and is registered with the World Data Centre for Microorganisms. All groups of fungi which include plant pathogens, biocontrol agents, fungi for medical and industrial use and also plant pathogenic bacteria are being maintained at ITCC.

[#715] The total nutrients in 100 kg of 17-17-17 are
Correct Answer

(B) 51 kg

Explanation

Solution: The total nutrients in 100 kg of 17-17-17 are 51 kg. Summing up all 17% of Nitrogen, 17% of phosphorus, and 17% of potassium, makes it 17 kg + 17 kg + 17 kg = 51 kg. NPK is the complex fertilizer that provides the nutrients for the overall growth of the plant.