EASY
12th Tamil Nadu Board
IMPORTANT
Earn 100

Progeny obtained as a result of repeat self pollination a cross pollinated crop to called 

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Important Questions on Plant Breeding

EASY
12th Tamil Nadu Board
IMPORTANT
Biology Botany Standard 12>Chapter 9 - Plant Breeding>Evaluation>Q 1
Assertion: Genetic variation provides the raw material for selection
Reason: Genetic variations are differences in genotypes of the individuals.
EASY
12th Tamil Nadu Board
IMPORTANT
Biology Botany Standard 12>Chapter 9 - Plant Breeding>Evaluation>Q 3

Match column I with column II

Column I Column II
i) William S Gaud I)Heterosis.             
ii) Shull                 II) Mutation breeding
iii) Cotton Mather III) Green revolution
iv) Muller and Stadler IV) Natural hybridisation
EASY
12th Tamil Nadu Board
IMPORTANT
Biology Botany Standard 12>Chapter 9 - Plant Breeding>Evaluation>Q 4
The quickest method of plant breeding is
EASY
12th Tamil Nadu Board
IMPORTANT
Biology Botany Standard 12>Chapter 9 - Plant Breeding>Evaluation>Q 5
Desired improved variety of economically useful crops are raised by
EASY
12th Tamil Nadu Board
IMPORTANT
Biology Botany Standard 12>Chapter 9 - Plant Breeding>Evaluation>Q 11

Jaya and Ratna are the semi dwarf varieties of

 

EASY
12th Tamil Nadu Board
IMPORTANT
Biology Botany Standard 12>Chapter 9 - Plant Breeding>Evaluation>Q 14
A wheat variety, Atlas 66 which has been used as a donor for improving cultivated wheat, which is rich in
 
MEDIUM
12th Tamil Nadu Board
IMPORTANT
Biology Botany Standard 12>Chapter 9 - Plant Breeding>Evaluation>Q 19
How are microbial inoculants used to increase the soil fertility?
HARD
12th Tamil Nadu Board
IMPORTANT
Biology Botany Standard 12>Chapter 9 - Plant Breeding>Evaluation>Q 20
What are the different types of hybridisation?