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प्रश्न
What are the different types of hybridization?
उत्तर
Types of Hybridization
According to the relationship between plants, hybridization is divided into.
- Intravarietal hybridization – The cross between the plants of the same variety. Such crosses are useful only in self-pollinated crops.
- Intervarietal hybridization – The cross between the plants belonging to two different varieties of the same species and is also known as intraspecific hybridization. This technique has been the basis of improving self-pollinated as well as cross-pollinated crops.
- Interspecific hybridization – The cross between the plants belonging to different species belonging to the same genus is also called intragenic hybridization. It is commonly used for transferring the genes of disease, insect, pest, and drought resistance from one species to another.
संबंधित प्रश्न
Assertion: Genetic variation provides the raw material for selection
Reason: Genetic variations are differences in genotypes of individuals.
Pick out the odd pair.
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 hybridization |
The quickest method of plant breeding is
Desired improved variety of economically useful crops are raised by
Dwarfing gene of wheat is
Progeny obtained as a result of repeat self-pollination a cross-pollinated crop to called
Jaya and Ratna are the semi dwarf varieties of
A wheat variety, Atlas 66 which has been used as a donor for improving cultivated wheat, which is rich in
Which of the following is incorrectly paired?
Write a note on heterosis.
