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Majority of the high yielding varieties ...

Majority of the high yielding varieties of 'Indian rice' have been developed by cross between

A

Oryza sativa indica `xx` oryza nivara

B

Oryza sativa indica `xx` O. sativa japonica

C

O. sativa japanica `xx` O. nivara

D

O. rufipogon `xx` O. nivara.

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The correct Answer is:
B
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DINESH PUBLICATION-PLANT BREEDING AND DISEASE CONTROL-MCQ
  1. Which of the following methods in not used for crop improvement?

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  2. in crop improvement programme , haploids are of great importance becau...

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  3. Majority of the high yielding varieties of 'Indian rice' have been dev...

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  4. Tissue culture technique was first performed successfully by

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  5. Virus free plants can be obtained by

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  6. Tissue culture technique can produce infinite number of new plants fro...

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  7. Haploids are preferred over diploids for mutation studies because in h...

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  8. Four inbred/pure lines of Maize are crossed the cross is

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  9. In high yielding 'hybrid crop varieties' to exploit hybrid vigour, the...

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  10. Desired improved varieties of economically useful crops are raised by

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  11. Haploid plant cultures are got from

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  12. Somaclonal variations are the ones.

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  13. Removal of anthers of some flowers during plants breeding is

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  14. Androgenic haploids are used for

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  15. Plants developed in vitro culture from pollen grains are

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  16. In bacterial/tissue culture, glassware and nutrients are streilised th...

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  17. Callus is

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  18. The enzymes required to obtain wall-free/naked protoplasts are

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  19. mass selection is preferred in case of

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  20. Crosses between, the plants of the same variety are called

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