The quickest method of plant breeding is _______.

(a)

Introduction

(b)

Selection

(c)

Hybridization

(d)

Mutation breeding

Jaya and Ratna are the semi dwarf varieties of ______.

(a)

wheat

(b)

rice

(c)

cowpea

(d)

mustard

Match list I with list II

List I	List II
Biofertilizer	Organisms
i) Free living N2	a) Aspergillus
ii) Symbiotic N2	b) Amanita
iii) P Solubilizing	c) Anabaena azollae
iv) P Mobilizing	d) Azotobactor

(a)

i	ii	iii	iv
c	a	b	d

(b)

i	ii	iii	iv
d	c	a	b

(c)

i	ii	iii	iv
a	c	b	d

(d)

i	ii	iii	iv
b	a	d	c

Which of the following scientist developed world's first cotton hybrid?

(a)

Dr. B.P. Pal

(b)

C.T. Patel

(c)

Dr. K. Ramiah

(d)

N.G.P. Rao

Assertion (A): SLF promotes vigorous growth and provide resistance against diseases.
Reason (R): SLF is made from kelp containing more than 70 minerals.

(a)

Both A and R are true. R explains A.

(b)

A is true R is false

(c)

A is false R is true.

(d)

Both A and R are false

Statement (1): Clonal selection is carried out in asexually propagating plants.
Statement (2): Clones show similar genotypes.

(a)

Statement 1 is correct and Statement 2 is incorrect

(b)

Statement 1 is incorrect and Statement 2 is correct

(c)

Both the statements are correct

(d)

Both the statements are incorrect

Pusa swarnim variety of Brassica species show resistance to ___________

(a)

White rust

(b)

Leaf curl

(c)

Black rot

(d)

Hill bunt

Damping off of tomato is controlled by

(a)

Beauveria species

(b)

Trichoderma species

(c)

Acacia species

(d)

Pseudomonas species

The period of opening of a flower is___________

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Anthesis

What are bio-pesticides? Why they are considered better than synthetic pesticides?

Define Heterosis?

What is Biofortification?

Explain the best suited type followed by plant breeders at present?

How Rhizobium acts as an efficient bio- fertiIizer?

Write a note on Green Manuring.

Write a short note on autopolyploidy with an example.

State the objective of using green manuring.

List out the new breeding techniques involved in developing new traits in plant breeding.

Explain the steps involved in hybridization.