1
ISTA recommended dormancy breaking treatment in wheat
(A) . Preheat treatment
(B) . GAg treatment
(C) . Prechill treatment
(D) . KNOs treatment
Choose the correct answer from the options given below:
EXPLANATION
Seed Dormancy
- ISTA Prescribed Dormancy Breaking Treatments in Wheat (Triticum aestivum):
- Preheat Treatment: Incubation of dry seeds at $30 - 35^\circ\text{C}$ with free air circulation for up to 7 days.
- $GA_3$ Treatment: Moistening the germination substrate with a $0.05\%$ (500 ppm) solution of gibberellic acid.
- Prechill Treatment: Chilling imbibed seeds at $5 - 10^\circ\text{C}$ for 7 days before transferring to standard test temperatures ($20^\circ\text{C}$).
- Conclusion: Treatments (A), (B), and (C) only are official ISTA recommendations. (Correct answer: Option 3)
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