Horticulture - Study Mode

[#696] According to ISI, tomato has been specialized into . . . . . . . . grades.
Correct Answer

(A) 4

Explanation

Solution: According to ISI, the tomato has been specialized into 4 grades . Grading in tomatoes is referred to as the categorization of the fruits based on the colour, size, stage of maturity/degree of ripening, etc. it can be done manually or mechanically by machines. Retailers normally do size grading for the local market. However, based on the size of the fruits three grades are formed: small (< 100 g), medium (100 - 255 g) and large (> 255 g). BIS has specified 4 grades that are Super A, Super, Fancy and commercial.

[#697] The most cold hardy citrus root stock is
Correct Answer

(A) Trifoliate orange

Explanation

Solution: The cold hardy citrus rootstock is Trifoliate orange . The trifoliate orange, also known as trifoliate lemon and Poncirus, is extremely hardy, surviving in areas colder than USDA Zone 6. It can tolerate moderate frost and snow, making a large shrub or small tree 4 - 8 m tall. It is a common rootstock. This small fruit is very seedy and bitter.

[#698] Which of the following glucosides is present in bitter gourd?
Correct Answer

(B) Cucurbitacin

Explanation

Solution: Cucubitacin is the glucosides present in bitter gourd. Bitter gourd belongs to cucurbitaceous family. It produces compounds that add to its bitter taste. When extremely bitter, ingestion of bottle gourd can cause rapid onset diarrhea, vomiting, gastrointestinal bleeding and hypotension due to release of a substance named cucurbitacin. It acts as an anti-herbivore chemical and an insecticide.

[#699] Fruits of Okra is rendered unmarketable due to the attack of
Correct Answer

(B) Painted bug

Explanation

Solution: Okra is an herbaceous annual plant in the family Malvaceae which is grown for its edible seed pods. Fruits of Okra is rendered unmarketable due to the attack of painted bug. The adult bug is shield shaped, 3 - 4 mm broad at its widest area. The life cycle lasts 3 - 4 weeks and period of activity of painted bug starts from September.

[#700] Under the AICVIP, India is divided into . . . . . . . . agroclimatic zones.
Correct Answer

(A) 8

Explanation

Solution: AICVIP stands for All India coordinated vegetable improvement project, headquartered at IARI, New Delhi. Under the AICVIP, India is divided into 8 Agro climatic zones. 1. Humid western Himalayan region 2. Humid Bengal-Assam Basin 3. Humid eastern Himalayan and Bay Islands 4. Sub-Humid Sutlej Ganga Alluvial Plain 5. Sub-Humid to Humid Eastern and South Eastern Uplands 6. Arid Western Plain 7. Semi-Arid lava Plateau and Central high lands 8. Humid to Semi-Arid Western Ghats and Karnataka Plateau