(A) The semi-dwarf varieties of rice were developed from $IR-8$ and $Taichung$ $Native-1$. These varieties were introduced in India in $1966$ and were

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(A) The semi-dwarf varieties of rice were developed from $IR-8$ and $Taichung$ $Native-1$. These varieties were introduced in India in $1966$ and were responsible for the Green Revolution in rice production. $Jaya$ is a variety derived from these,while $Sonalika$ is a semi-dwarf variety of wheat.

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

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Semi-dwarf varieties of rice were developed from:
$I$. $IR-8$
$II$. $Taichung$ $Native-1$
$III$. $Jaya$
$IV$. $Sonalika$
Choose the correct options.

A
$I$ and $II$
B
$II$ and $III$
C
$I$ and $III$
D
$III$ and $IV$

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Strategies for Enhancement in Food Production

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Method of Plant Breeding

During the period from $1960$ to $2000$,wheat production increased from .......... to .......... .

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The majority of high-yielding varieties of 'Indian rice' have been developed by crossing which of the following?

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Which characteristics are present in cotton varieties that do not attract bollworms?
$(i)$ Smooth leaves
$(ii)$ Hairy leaves
$(iii)$ Stem thorns
$(iv)$ Nectar-containing
$(v)$ Low aspartic acid
$(vi)$ Nectar-less

Medium

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Improved method of grafting is:

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The host crop plants may be resistant to insect pests due to the
$I$. Morphological characteristics
$II$. Biochemical characteristics
$III$. Physiological characteristics
Choose the correct option.

Medium

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Semi-dwarf varieties of rice were developed from:$I$. $IR-8$$II$. $Taichung$ $Native-1$$III$. $Jaya$$IV$. $Sonalika$Choose the correct options.

Similar Questions

During the period from $1960$ to $2000$,wheat production increased from .......... to .......... .

The majority of high-yielding varieties of 'Indian rice' have been developed by crossing which of the following?

Which characteristics are present in cotton varieties that do not attract bollworms?$(i)$ Smooth leaves$(ii)$ Hairy leaves$(iii)$ Stem thorns$(iv)$ Nectar-containing$(v)$ Low aspartic acid$(vi)$ Nectar-less

Improved method of grafting is:

The host crop plants may be resistant to insect pests due to the$I$. Morphological characteristics$II$. Biochemical characteristics$III$. Physiological characteristicsChoose the correct option.

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Semi-dwarf varieties of rice were developed from:
$I$. $IR-8$
$II$. $Taichung$ $Native-1$
$III$. $Jaya$
$IV$. $Sonalika$
Choose the correct options.

Which characteristics are present in cotton varieties that do not attract bollworms?
$(i)$ Smooth leaves
$(ii)$ Hairy leaves
$(iii)$ Stem thorns
$(iv)$ Nectar-containing
$(v)$ Low aspartic acid
$(vi)$ Nectar-less

The host crop plants may be resistant to insect pests due to the
$I$. Morphological characteristics
$II$. Biochemical characteristics
$III$. Physiological characteristics
Choose the correct option.