Q.1
Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A) : Temperate carrots form roots both under temperate and tropical climates but produce seeds only under
temperate condition
Reason (R) : Temperate carrots require low temperature of 5 - 8 °C for 40 - 60 days for bolting and flowering.
In light of the above statements, choose the correct answer from the options given below.
- Assertion (A): European/temperate biennial carrots (Daucus carota subsp. sativus) successfully develop swollen edible storage roots under both temperate and subtropical winter conditions in plains, but fail to produce flowering umbels or seeds in plains; they produce seeds exclusively in temperate hill regions. (True).
- Reason (R): Temperate carrots possess an obligate vernalization requirement, requiring prolonged low temperatures of $5 - 8^\circ\text{C}$ for $40 - 60\text{ days}$ to induce bolting, stem elongation, and inflorescence initiation, which are absent in the tropical/subtropical plains. (True and directly provides the physiological rationale for Assertion A).
- Correct Option: Option 1 (Both (A) and (R) are true and (R) is the correct explanation of (A)).
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क्या व्याख्या इस प्रश्न से मेल नहीं खा रही?
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