Horticulture - Study Mode

[#531] The richest source of mineral Selenium is
Correct Answer

(C) Brazilnuts

Explanation

Solution: The richest source of mineral Selenium is Brazil nuts . Protein foods from animals are generally good sources of selenium. Seafood, organ meats, Brazil nuts.
Brazil nuts are the foods highest in selenium although Americans obtain most of their selenium from everyday staples, like bread, cereals, poultry, red meat and eggs.

[#532] Canna is also known as
Correct Answer

(B) Indian shot

Explanation

Solution: Canna is also known as an Indian shot . Canna indica , commonly known as Indian shot, African arrowroot, edible canna, purple arrowroot, or Sierra Leone arrowroot, is a plant species in the family Cannaceae. It is native to much of South America, Central America, the West Indies and Mexico. Canna indica is a perennial growing to between 0.5 and 2.5 metres, depending on the variety. It is hardy to zone 10 and is frost-tender. The flowers are hermaphrodite. It can be used for the treatment of industrial wastewater through constructed wetlands. It is effective for the removal of high organic load, colour, and chlorinated organic compounds from paper mill wastewater.

[#533] . . . . . . . . plant hormone prevents the mechanism of apical dominance in plants.
Correct Answer

(A) Cytokinin

Explanation

Solution: Cytokinin is the plant hormone that prevents the mechanism of apical dominance in plants. Cytokinins promote cell division and increase cell expansion during the proliferation and expansion stages of leaf cell development, respectively. During leaf senescence, cytokinins reduce sugar accumulation, increase chlorophyll synthesis, and prolong the leaf photosynthetic period.

[#534] CNSL is extracted from
Correct Answer

(A) Cocoa

Explanation

Solution: CNSL is extracted from cashew nuts . Cashew Nut Shell Liquid (CNSL) is a versatile by-product of the cashew industry. The nut has a shell of about $$frac{1}{8}$$ inch thickness inside which is a soft honeycomb structure containing a dark reddish brown viscous liquid. Natural CNSL is obtained by the utilization of some solvent extraction technique. It is cheaper, and renewable and is successfully employed to manufacture a variety of useful Phenolic Resin to replace synthetic Phenol in many of its applications with equivalent or better results.

[#535] Acute Magnesium deficiency is seen when ratio is
Correct Answer

(C) Lower than 0.2

Explanation

Solution: Acute Magnesium deficiency is seen when the ratio is lower than 0.2 . Magnesium deficiency is a condition in which the amount of magnesium in the blood is lower than normal. The medical name of this condition is hypomagnesemia. Magnesium deficiency in plants is common where the soil is not rich in organic matter or is very light. Heavy rains can cause a deficiency to occur by leaching magnesium out of sandy or acidic soil.