Horticulture - Study Mode

[#466] International Seed Testing Association (ISTA) was established in . . . . . . . . at Geneva, Switzerland.
Correct Answer

(D) 1924

Explanation

Solution: International Seed Testing Association (ISTA) was established in 1924 in Geneva, Switzerland. It is an independent, non-profit organization founded during the 4 th International Seed Testing Congress in 1924. Its members work to promote uniform methods of evaluating seeds being sold internationally to facilitate the international trading of seeds and contribute to global food security. ISTA Rules for sampling and testing seed quality, laboratory accreditation, and the promotion of seed science research and test development.

[#467] Pungency in onion is to due presence of
Correct Answer

(A) Allyl propyl disulphide

Explanation

Solution: Pungency in onion is due to the presence of Allyl propyl disulphide . Onion is valued for its bulbs having characteristic odour, flavour and pungency, which is due to the presence of a volatile oil allyl propyl disulphide. Pungency is formed by an enzymatic reaction when tissues are broken. Bulbs are suited for storage for a long period and long-distance transport.

[#468] Pusa Rohini is the variety of
Correct Answer

(B) Tomato

Explanation

Solution: Pusa Rohini is a variety of tomatoes. This variety was introduced by the Indian Agricultural Research Institute in the year 2005. The fruits of this variety can stay fresh for longer times. They are medium in size and have smooth thick skin, red. The average yield of this variety is 412 q/ha.

[#469] Plant suitable for edge is
Correct Answer

(C) Iresine

Explanation

Solution: The plant suitable for the edge is Iresine . Iresine is a genus of flowering plants in the family Amaranthaceae. It is also known as the chicken gizzard plant. It contains 20 to 25 species, all of which are native to the American tropics. Although Iresine can be planted both outside and indoors, it gets quite finicky outdoors. It's hardy to USDA Zones 10 to 12, and it needs a lot of heat and humidity.

[#470] Quantitative traits having low heritability are improved by using
Correct Answer

(B) Recurrent selection

Explanation

Solution: Quantitative traits having low heritability are improved by using recurrent selection . Recurrent selection means repeated cycles of selection and breeding aimed at gradual genetic improvement of a few key traits in a single species. Genomic selection and marker-assisted recurrent selection have been applied to improve quantitative traits in many cross-pollinated crops. The benefits of breeding are cumulative in that each cycle or generation of improvement builds upon advances made in prior generations.