Different classes of seeds have various levels of genetic purity (%) standards. Arrange the following classes of seeds in ascending order of their genetic purity:
(A) TL Seeds (Truthfully Labelled Seeds)
(B) Breeders seeds
(C) Foundation seeds
(D) Certified seeds
Choose the correct answer from the options given below:
बीजों के विभिन्न वर्गों में आनुवंशिक शुद्धता (%) मानकों के विभिन्न स्तर होते हैं। बीजों के निम्नलिखित वर्गों को उनकी आनुवंशिक शुद्धता के आरोही क्रम (ascending order) में व्यवस्थित कीजिए:
(A) टीएल बीज (सत्य रूप से लेबल किए गए बीज / Truthfully Labelled Seeds)
(B) प्रजनक बीज (Breeder seed)
(C) आधार बीज (Foundation seed)
(D) प्रमाणित बीज (Certified seed)
नीचे दिए गए विकल्पों में से सही उत्तर चुनिए:
Genetic Purity Standards for Seed Classes:
- Truthfully Labelled (TL) Seeds: Self-certified by the seed producer without statutory field inspection by a certification agency; maintains variable/lowest formal genetic purity standards.
- Certified Seeds (Blue tag): Produced from foundation seeds, certified by SSCA; statutory genetic purity requirement is typically 99.0%.
- Foundation Seeds (White tag): Progeny of breeder seeds, certified by SSCA; statutory genetic purity requirement is 99.5%.
- Breeder Seeds (Golden yellow tag): Direct progeny of nucleus seeds produced under direct supervision of the sponsoring plant breeder; requires 100.0% absolute genetic purity.
Arranged in ascending order (lowest to highest purity):
$$\text{TL Seeds (A)} \lt \text{Certified Seeds (D)} \lt \text{Foundation Seeds (C)} \lt \text{Breeder Seeds (B)}$$Therefore, the correct ascending order is (A), (D), (C), (B).
Correct Answer: Option 3.
विस्तृत व्याख्या:
Genetic Purity Standards for Seed Classes (बीज वर्गों के आनुवंशिक शुद्धता मानक):
- Truthfully Labelled (TL) Seeds: Self-certified by the seed producer without statutory field inspection by a certification agency; maintains variable/lowest formal genetic purity standards.
- Certified Seeds (Blue tag): Produced from foundation seeds, certified by SSCA; statutory genetic purity requirement is typically 99.0%.
- Foundation Seeds (White tag): Progeny of breeder seeds, certified by SSCA; statutory genetic purity requirement is 99.5%.
- Breeder Seeds (Golden yellow tag): Direct progeny of nucleus seeds produced under direct supervision of the sponsoring plant breeder; requires 100.0% absolute genetic purity.
Arranged in ascending order (lowest to highest purity):
$$\text{TL Seeds (A)} \lt \text{Certified Seeds (D)} \lt \text{Foundation Seeds (C)} \lt \text{Breeder Seeds (B)}$$Therefore, the correct ascending order is (A), (D), (C), (B).
Correct Answer: Option 3.
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