Question

A wheat variety resistant to hill bunt disease is
A. Pusa shubra
B. Himgiri
C. Pusa Gaurav
D. Pusa Sawami

Answer 1

Hint: A plant having various good qualities can be enhanced by adding some more good features to it via hybridization. This technique is new in which the two best quality varieties are bred to improve them. This could enhance the qualities of various varieties and increase the yield.

Complete answer:
Wheat is a grass cultivated in the world as a cereal for its seed. The various wheat varieties have a different level of proteins in them. Thus scientists thought to make hybrids out of the best varieties to gain the maximum nutrient content.
Hybridization is a process of interbreeding the individuals either in the same species or different species.

> Option A: Pusa shubra: It is a variety of cauliflower which is made resistant to black rot disease.

> Option B: Himgiri: HS 375 is the other name of Himgiri. It is a wheat hybrid developed by IARI. This was developed by hybridization and selection for disease resistance and leaf rust pathogens. It thus became resistant to yellow rust and hill bunt disease.

> Option C: Pusa Gaurav: It is the insect-resistant mustard species. It was hybridized to show resistance to aphids.

> Option D: Pusa sawani: The pusa sawami is resistant to aphids, fruit borers. They are the hybrids of flat beans. They have various varieties like Pusa SEm 2, 3 and A-4.

Hence, the correct answer is option (B).

Note: There are 3000 plus varieties of wheat in the world. It is one of the staple crops. The varieties are hybridized to get resistance to various diseases. The best-used wheat varieties are- Triticum Vulgare, T.durum, T. compactum. The wheat varieties have the most protein content.