Horticulture - Study Mode

[#446] Which chemical acts as an aid for mechanical harvesting
Correct Answer

(A) ABA

Explanation

Solution: ABA (Abscisic acid) is the chemical that acts as an aid for mechanical harvesting. Abscisic acid (ABA) is a key hormone involved in tuning responses to several abiotic stresses and also has remarkable impacts on plant defense against various pathogens. It acts as plant growth regulator, especially in seed maturation, seed dormancy, adaptive responsive to biotic and abiotic stresses and leaf and bud absicission. Mechanical harvesting systems are designed to achieve the mass removal of the commodity during the harvesting season at once.

[#447] Botanical name of Mango ginger is
Correct Answer

(D) Curcuma amada

Explanation

Solution: Botanical name of Mango ginger is Curcuma amada . Mango ginger is an annual plant that belongs to Zingiberaceae family. It has been cultivated throughout the world and is used for food flaovouring. It contains cic-trans hydrocimene, ocimene and myrcene. It is used as an ayurvedic spice for joint pain, itching in the skin, indigestion, cough and wounds.

[#448] Leaf scorching in Mango is due to
Correct Answer

(A) Chloride toxicity

Explanation

Solution: Leaf scorching in Mango is due to Chloride toxicity . Chlorine toxicity can result from air pollution, in the form of chlorine gas, or from excess chloride in the soil.
Chlorine is a micronutrient, essential to plant growth. However, too much chlorine can accumulate in leaf tissue, resulting in leaves with a scorched or burned appearance. This disease is characterized by drying of twigs and branches followed by complete defoliation, which gives the tree an appearance of scorching by fire. Trees with scorched leaves have brown or dead tissue on the tips, margins, or between the veins of the leaf. Leaf tissue may appear bleached, instead of scorched.

[#449] The world collection of sweet potato germplasm is maintained in
Correct Answer

(A) Peru

Explanation

Solution: The world collection of sweet potato germplasm is maintained in Peru . The genebanks at the International Potato Center (CIP) in Lima, Peru holds one of the largest ex situ collections of sweet potato germplasm containing almost 6,000 accessions of cultivated sweet potato held in trust under the International Treaty for Plant Genetic Resources for Food and Agriculture (ITPGRFA).

[#450] Cucumber hybrid developed using gynoecious lines is
Correct Answer

(D) Pusa Sanyog

Explanation

Solution: Cucumber hybrid developed using gynoeciuos lines is Pusa Sanyog . Pusa Sanyog is a F1 hybrid (Japanese Gynoecious line × Green Long of Naples). Early and high yielding hybrid, fruit 28 - 30 cm long, cylindrical and dark green with yellow stripes crisp flesh, maturity in 50 days. Suitable to temperate region & hills of subtropical region.