Plant Pathology - Study Mode

[#291] Assimilatory power produced in Hill reaction and used in Blackman's reaction refers to
Correct Answer

(A) Generation of ATP and NADPH 2

Explanation

Solution: Assimilatory power produced in Hill reaction and used in Blackman's reaction refers to the generation of ATP and NADPH 2 . ATP and NADPH 2 are formed during the light reaction of photosynthesis. These are used for the assimilation of CO 2 and synthesis of carbohydrates in the Calvin cycle so ATP and NADPH 2 are known as assimilatory power.

[#292] Quarantine restriction has been imposed on which disease of wheat?
Correct Answer

(A) Karnal bunt

Explanation

Solution: Quarantine restriction has been imposed on Karnal bunt disease of wheat. Karnal bunt is a fungal disease of wheat, durum wheat, and triticale. The smut fungus Tilletia indica, a basidiomycete, invades the kernels and obtains nutrients from the endosperm, leaving behind waste products with a disagreeable odour. Karnal bunt is an internationally quarantine-significant fungal disease of wheat. Implementing an emergency quarantine, inspection, and certification program for wheat moving out of the infested areas, along with regulations on sanitizing machinery and storage facilities.

[#293] The 1 st computer simulation model against Alternaria solani causing blight disease in tomato and potato is
Correct Answer

(A) EPIDEM

Explanation

Solution: The 1 st computer simulation model against Alternaria solani causing blight disease in tomato and potato is EPIDEM. One of the first computer simulation programs, called EPIDEM, was written in 1969 and resulted from modelling each stage of the life cycle of a pathogen as a function of the environment. EPIDEM was designed to simulate epidemics of early blight of tomato and potato caused by the fungus Alternaria solani.

[#294] Endosperm cell of an angiosperm has 24 chromosomes. The number of chromosomes in the gametes would be
Correct Answer

(A) 8

Explanation

Solution: The endosperm cell of an angiosperm has 24 chromosomes. The number of chromosomes in the gametes would be 8. As the endosperm cell of an angiosperm is triploid structure 3n. The number of chromosomes in the gametes would be, 3n = 24 Therefore, n = $$frac{{24}}{3}$$ = 8 chromosomes.

[#295] Which systemic fungicide was first time discovered by Von Schmeling and Kulka
Correct Answer

(A) Oxathiin

Explanation

Solution: Oxathiin systemic fungicide was first time discovered by Von Schmeling and Kulka. A systemic fungicide is taken up by a plant and is then translocated within the plant system, it can thereby protect the plant from infections and restrict/Control the further growth of existing fungal infections. Oxathiin is a six-membered, unsaturated heterocycle containing four carbon atoms, one sulphur and one oxygen atom and two double bonds, but especially 1,4-oxathiin.