Question:medium
Hybrid rose seeds respond best to a stratification temperature of ____________ °C for 69 to 90 days.
Hybrid rose seeds respond best to a stratification temperature of ____________ °C for 69 to 90 days.
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Proper stratification temperature and duration are crucial for breaking seed dormancy and ensuring healthy seed germination.
Updated On: Jan 14, 2026
- 14 °C
- 5–8 °C
- 8–12 °C
- 13–16 °C
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The Correct Option is A
Solution and Explanation
Stratification is a pre-germination process that uses cold exposure to overcome seed dormancy. Hybrid rose seeds benefit most from stratification at approximately 14 °C for 69 to 90 days, which enhances germination success.
(A) 14 °C – Correct. This is the ideal stratification temperature for hybrid rose seeds.
(B) 5–8 °C – This temperature is too low for effective rose seed stratification.
(C) 8–12 °C – This range is slightly below the optimal temperature.
(D) 13–16 °C – While close, 14 °C offers greater precision for stratification.
(A) 14 °C – Correct. This is the ideal stratification temperature for hybrid rose seeds.
(B) 5–8 °C – This temperature is too low for effective rose seed stratification.
(C) 8–12 °C – This range is slightly below the optimal temperature.
(D) 13–16 °C – While close, 14 °C offers greater precision for stratification.
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