(A) The term "pureline" was coined by the Danish botanist $W. L. Johannsen$ in $1903$. He conducted experiments on beans ($Phaseolus vulgaris$) and de

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(A) The term "pureline" was coined by the Danish botanist $W. L. Johannsen$ in $1903$. He conducted experiments on beans ($Phaseolus vulgaris$) and demonstrated that pureline selection is effective in self-pollinated crops to isolate homozygous lines from a heterogeneous population. Therefore, the correct answer is $W. L. Johannsen$.

Class 12 Biology Strategies for Enhancement in Food Production Method of Plant Breeding

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The term "pureline selection" was first proposed by

A
$W. L. Johannsen$
B
Sinnot and Dunn
C
Darlington
D
Mather

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Class 12

Biology Questions

Chapter

Strategies for Enhancement in Food Production

Subtopic

Method of Plant Breeding

Match the following columns:

Column-$I$ Column-$II$

$P$. Semi-dwarf varieties of wheat $I$. Sonalika

$Q$. Semi-dwarf varieties of rice $II$. $IR-8$

$III$. Jaya

$IV$. Kalyan Sona

$V$. Taichung Native-$I$

$VI$. Ratna

Column-$I$	Column-$II$
$P$. Semi-dwarf varieties of wheat	$I$. Sonalika
$Q$. Semi-dwarf varieties of rice	$II$. $IR-8$
	$III$. Jaya
	$IV$. Kalyan Sona
	$V$. Taichung Native-$I$
	$VI$. Ratna