Plant Pathology - Study Mode

[#391] Which spore of rust fungus is repeating spore?
Correct Answer

(C) Urediospore

Explanation

Solution: The Urediospore spore of rust fungus is repeating. Rusts are plant diseases caused by pathogenic fungi of the order Pucciniales. Rust fungi are highly specialized plant pathogens with several unique features. These serve as repeating dikaryotic vegetative spores. These spores are referred to as the repeating stage because they can cause auto-infection on the primary host, re-infecting the same host on which the spores were produced.

[#392] Citrus tristeza virus is
Correct Answer

(B) Semi persistent

Explanation

Solution: Citrus tristeza virus is Semi persistent. Citrus tristeza virus (CTV) is transmitted by several aphid species in a semi-persistent manner with Toxoptera citricida, the brown citrus aphid (BrCA), being the most efficient. Citrus tristeza virus (CTV) belongs to the Closterovirus genus, which potentially caused an economic loss in citrus plants and produces subgenomic noncoding RNAs called LMT1.

[#393] Flour is a
Correct Answer

(A) Wetting agent

Explanation

Solution: Flour is a Wetting agent. Wetting agents are commonly used to reduce the surface tension of water and thus help the water-based solutions to spread. Wetting agents are utilized in many different products. In the coating industry, wetting agents help the fluid phase to wet pigment particles during the pigment dispersion process.

[#394] An NPK complex can be used if the dose asks for
Correct Answer

(B) NPK

Explanation

Solution: An NPK complex can be used if the dose asks for NPK. NPK complex is a solid three-nutrient fertilizer in a single granule that is produced via chemical or physical processes but excluding bulk blends. And normal NPK is a complex fertilizer that contains all three major nutrients 10% Nitrogen, 26% Phosphorous and 26% Potash. As both are the same, thus, NPK complex can be used if an NPK dose is required.

[#395] Cercals straw is a particularly rich source of
Correct Answer

(B) Potash

Explanation

Solution: Cereal straw is a particularly rich source of Potash. Straw is an agricultural byproduct consisting of dry stalks of cereal plants after the grain and chaff have been removed. It has several different uses, including fuel, livestock bedding, fodder, thatching and basket making. Straw may be fed as part of the roughage component of the diet to cattle or horses. It has a low digestible energy and nutrient content. It is a particularly rich source of Potash.