Question

discuss the role of hybridisation in crop variety improvement?

Answer 1

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Hybridisation refers to crossing between genetically dissimilar plants. It may be inter varietel, inter specific and inter generic. Two crops of good characters (desired character) are selected and crossed to obtain a new crop having desired characters of parental crops. This method of hybridisation improves crops with respect to yield, disease resistance, pest resistance etc.
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Answer 2

Hybridisation (biology), the process of combining different varieties of organisms to create a hybrid. Orbital hybridisation, in chemistry, the mixing of atomic orbitals into new hybrid orbitals. Nucleic acid hybridization, the process of joining two complementary strands of nucleic acids - RNA, DNA or oligonucleotides.