In crop improvement programs,haploid varietie | vedclass

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(D) Haploid plants are produced through techniques like anther culture or pollen culture. Since haploid plants contain only one set of chromosomes $(n

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produce homozygous lines accurately.

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(D) Haploid plants are produced through techniques like anther culture or pollen culture. Since haploid plants contain only one set of chromosomes $(n)$,they are genetically unstable. When these haploid plants are treated with colchicine,they undergo chromosome doubling to become diploid $(2n)$. This process results in plants that are completely homozygous for all traits. These homozygous lines are highly valuable in plant breeding programs for creating pure lines and developing hybrid varieties efficiently.

List-$I$ (Crop Variety)	List-$II$ (Disease Resistance)
$(a)$ Himgiri	$(1)$ White rust
$(b)$ Pusa Komal	$(2)$ Black rot
$(c)$ Pusa Snowball $K-1$	$(3)$ Bacterial blight
$(d)$ Pusa Swarnim
	$(4)$ Hill bunt

In crop improvement programs,haploid varieties are important because they .

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