Question

Pusa-gaurav variety resistant to insect pest developed by hybridization and selection belong to:
A) Bottle gourd
B) Brinjal
C) Wheat
D) Rapeseed mustard

Answer 1

The ability to avoid or diminish the presence of illnesses in otherwise susceptible hosts is known as disease resistance. Incomplete penetrance, for example, might be caused by genetic or environmental factors. Sickness tolerance is distinct in that it refers to a host's ability to restrict the impact of disease on his or her health.

Complete answer:
Pusa Gaurav is an insect-resistant cultivar of Rapeseed mustard that has aphid resistance. - Himgiri is a wheat type that is resistant to plant diseases such as leaf and stripe rust, as well as hill bunt.

So the correct option is (D). Rapeseed mustard.

Rapeseed, commonly known as rape or oilseed rape, is a bright-yellow flowering member of the Brassicaceae family that is farmed primarily for its oil-rich seed, which contains significant levels of erucic acid naturally.

Plant breeding consists of four steps: (1) Creating genetic variation through various methods (2) Seed multiplication and distribution among farmers, (3) Evaluation and Release as a Variety, and (4) Seed multiplication and distribution as a variety.

A blackfly or greenfly is a tiny bug that feeds by sucking sap from plants. Aphids reproduce quickly, sometimes generating live young without mating, and big populations can harm plants severely.

Himgiri (HS 375) is a wheat hybrid cultivar developed by crossbreeding and selection for disease resistance and pathogen resistance to leaf and stripe rust. It's a disease-resistant type that's resistant to stripe rust or yellow rust, as well as hill bunt. IARI is the company that created the variety.

Plant breeding's major goal is to generate plants with the correct genotype and phenotype while also making them economically valuable to humans. In agriculture, to improve plant traits in order to boost output or productivity.

Note:-
During 1981-1985 in Jhansi, India, fifty-seven cultivars of fodder mustard (Brassica species) were evaluated for aphid (Lipaphis erysimi Kalt.) resistance in a natural infestation. The IM-76-103 cultivar was discovered to be very aphid resistant, high producing, and late maturing.