Question
Choose the correct statements :
A. Tetrazolium test (TZ) is quick estimate of viability
B. In dormant seed tetrazolium test is not useful
C. Red colour parts of seed is related with living part
D. Generally, TZ test is correlated with germination test
E. In TZ test, dicot seed is damaged and could not be germinated
Choose the correct answer from the options given below :
This question was previously asked in
CUET PG 2026 Agri-Business Management Question Paper (25-Mar-2026) (Shift 2)
The correct answer is
A, C, D only
Tetrazolium Test Statements Analysis
The question asks to identify the correct statements regarding the Tetrazolium (TZ) test for seed viability.
Statement Evaluation:
- A. Tetrazolium test (TZ) is quick estimate of viability: This statement is correct. The TZ test provides a rapid assessment of seed viability by detecting respiratory activity.
- B. In dormant seed tetrazolium test is not useful: This statement is incorrect. The TZ test can indicate viability even in seeds that are dormant and may not germinate immediately under test conditions.
- C. Red colour parts of seed is related with living part: This statement is correct. The reduction of the colourless tetrazolium salt to a red formazan indicates areas of active dehydrogenase enzymes, which are present in living tissues.
- D. Generally, TZ test is correlated with germination test: This statement is correct. The results of the TZ test typically show a high correlation with the results obtained from standard germination tests, making it a reliable indicator of germination potential.
- E. In TZ test, dicot seed is damaged and could not be germinated: This statement is incorrect. While the test involves staining, it generally does not cause irreversible damage preventing germination, especially when conducted properly. Its purpose is to assess viability, not to impede germination.
Conclusion on Correct Statements:
Based on the evaluation, statements A, C, and D are correct.
Selected Answer Explanation
The correct statements are A, C, and D. Therefore, the option including only these statements is the correct choice.
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