Plant Pathology - Study Mode
[#426] Percentage of radiant energy entering reaction site in photosynthesis which is converted into potential energy is
Correct Answer
(B) 35%
Explanation
Solution: The percentage of radiant energy entering the reaction site in photosynthesis which is converted into potential energy is 35%. During photosynthesis, “producers” like green plants, algae and some bacteria convert light energy from the sun into chemical energy. Radiant energy is the physical energy resulting from electromagnetic radiation, usually observed as it radiates from a source into the surrounding environment. Radiant energy sources include the entire electromagnetic radiation spectrum, including gamma rays, x-rays, radio frequencies, microwaves, sunlight and heat.
[#427] Most suitable form of N for flooded rice soil is
Correct Answer
(A) Ammonium
Explanation
Solution: The most suitable form of N for flooded rice soil is Ammonium. Rice plant depends mainly on its nitrogen upon the decomposition of organic matter under anaerobic conditions and in the early stages of growth takes up nitrogen in the form of ammonia which is the stable form of nitrogen in submerged soils. The main form of nitrogen (N) taken up by rice roots is shifted from ammonium (NH 4 ) in flooded paddy soil to nitrate in upland soil.
[#428] Individuals of a clone have
Correct Answer
(C) Same genome
Explanation
Solution: Individuals of a clone have the same genome. Clones contain identical sets of genetic material in the nucleus, the compartment that contains the chromosomes of every cell in their bodies. Thus, cells from two clones have the same DNA and the same genes in their nuclei.
[#429] Basidiospores are
Correct Answer
(A) Sexual spores
Explanation
Solution: Basidiospores are Sexual spores. A basidiospore is a reproductive spore produced by Basidiomycete fungi, a grouping that includes mushrooms, shelf fungi, rusts and smuts. Basidiospores typically each contain one haploid nucleus that is the product of meiosis, and they are produced by specialized fungal cells called basidia. These are typically single-celled (without septa), and typically range from spherical to oval to oblong, to ellipsoid or cylindrical.
[#430] In complex 12-36-16 each granule has
Correct Answer
(A) All three nutrients
Explanation
Solution: In complex 12-36-16 each granule has all three nutrients. In complex 12-32-16 each granule has all three nutrients i.e. Nitrogen, Phosphorus and Potassium. NPK 12-32-16 fixes the phosphorus and potassium content in the soil and is highly effective in soils with leaching conditions. It should be applied during sowing and through broadcasting. The dosage should be as per the crop and the soil.