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B
Curl blight black rot and aphids respectively
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C
Black rot and shoot borer respectively
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D
Leaf curl and fruit borer respectively
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Solution
The correct option is B Curl blight black rot and aphids respectively
Pusa snowball K-1 and Pusa A-4 are resistant from Curl blight black rot and aphids respectively.
Pusa snowball K-1 is developed at IARI (Indian Agricultural Research Institute), Regional Station, Katrain (Kullu Valley) and is tolerant to black rot.
Amongst the snowball types, it has the best quality of snow-white curds and retains it even if the harvesting is delayed. The leaves are puckered, serrated and light green in color.
Pusa A-4: Okra variety A-4 is resistant to Yellow Vein Mosaic virus, tolerant to Jassids, Aphids & Shoot and Root Borer. The fruits are with less mucilage and have a better shelf life. It is suitable for cropping throughout the year except during the period of low temperatures.
Hence the correct option is 'Curl blight black rot and aphids respectively'.