Horticulture - Study Mode

[#606] Seed coat related dormancy is observed in
Correct Answer

(D) All of the above

Explanation

Solution: Seed coat-related dormancy is observed in Ber, Walnuts as well as Guava . Seeds with seed coat dormancy can remain on/in the ground without germinating until the seed coat allows water and oxygen to enter the seed or eliminate the inhibiting chemicals. Exogenous dormancy is when the seed coat is too durable for moisture to infiltrate, effectively preventing germination. Endogenous dormancy occurs due to chemical changes within the seed's embryo.

[#607] Botanical Name of Long melon is
Correct Answer

(D) Cucumis melo var utillissimus

Explanation

Solution: Botanical Name of Long melon is Cucumis melo var utillissimus . It is a species of Cucumis that has been developed into many cultivated varieties. The fruit is a pepo. The flesh is either sweet or bland, with or without a musky aroma, and the rind can be smooth, ribbed, wrinkled, or netted. The melon is an annual, trailing herb. It grows well in subtropical or warm, temperate climates. Melons prefer warm, well-fertilized soil with good drainage that is rich in nutrients but are vulnerable to downy mildew and anthracnose.

[#608] For biological control of tomato fruit borer, the ideal trap crop is
Correct Answer

(A) Marigold

Explanation

Solution: For biological control of tomato fruit borer, the ideal trap crop is Marigold . In tomato marigold or cucumber is commonly used as a trap crop for every 15 rows of the main crop to attract tomato fruit borer. Marigold is a potential trap crop in potato and rice against nematodes and snails, respectively. Fruit borer is a serious pest of tomato as it reduces yield by up to 40%. The young are greenish to brown, with dark lines about the size of half of the finger. Adult females are yellow moths with dark brown spots on their wings. Larvae feed on the leaves and later make holes in the fruit which can be up to the size of a pea.

[#609] Iron deficiency in plant is characterised by
Correct Answer

(B) Yellowing of new leaves

Explanation

Solution: Iron deficiency in the plant is characterized by the Yellowing of new leaves . The distinctive symptom of iron deficiency is the chlorosis of the youngest leaves. As chlorosis is a result of photobleaching, leaves in bright sunlight will be more affected than those in shade. Initially, yellow interveinal chlorosis develops, which is characterized by a sharply contrasting green network of veins. Iron is needed to produce chlorophyll, hence its deficiency causes chlorosis.

[#610] International Water Management Institute (IWMI) is located in . . . . . . . .
Correct Answer

(A) Sri Lanka

Explanation

Solution: International Water Management Institute (IWMI) is located in Sri Lanka . The International Water Management Institute (IWMI) is a non-profit, scientific research organization focusing on the sustainable use of water and land resources in developing countries. It is headquartered in Colombo, Sri Lanka, with regional offices across Asia and Africa. It focuses on improving how water and land resources are managed, to underpin food security and reduce poverty while safeguarding the environment.