EASY
9th CBSE
IMPORTANT
Earn 100

Selection of crop for rotation depends on:

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Important Questions on Improvement in Food Resources

EASY
9th CBSE
IMPORTANT
Secondary Biology FIrst And Second Term of CLASS IX>Chapter 6 - Improvement in Food Resources>Multiple Choice Questions (MCQs)>Q 6
Growing of two or more crops simultaneously in a pre-planned succession is called:
EASY
9th CBSE
IMPORTANT
Secondary Biology FIrst And Second Term of CLASS IX>Chapter 6 - Improvement in Food Resources>Multiple Choice Questions (MCQs)>Q 7
Legume crop is sown before a cereal to:
EASY
9th CBSE
IMPORTANT
Secondary Biology FIrst And Second Term of CLASS IX>Chapter 6 - Improvement in Food Resources>Multiple Choice Questions (MCQs)>Q 8
High yield varieties need
 
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9th CBSE
IMPORTANT
Secondary Biology FIrst And Second Term of CLASS IX>Chapter 6 - Improvement in Food Resources>Multiple Choice Questions (MCQs)>Q 9
If there is a row of groundnut and a row of sunflower in a field it is for:
EASY
9th CBSE
IMPORTANT
Secondary Biology FIrst And Second Term of CLASS IX>Chapter 6 - Improvement in Food Resources>Multiple Choice Questions (MCQs)>Q 10

In mixed cropping, care should be taken that the crops chosen should have:

 

MEDIUM
9th CBSE
IMPORTANT
Secondary Biology FIrst And Second Term of CLASS IX>Chapter 6 - Improvement in Food Resources>Multiple Choice Questions (MCQs)>Q 11
Find out the correct sentence.
(i) Hybridisation means crossing between genetically dissimilar plants.
(ii) Cross between two varieties is called inter-specific hybridisation.
(iii) Introducing genes of desired character into a plant gives genetically modified crop.
(iv) Cross between plants of two species is called inter-varietal hybridisation.
EASY
9th CBSE
IMPORTANT
Secondary Biology FIrst And Second Term of CLASS IX>Chapter 6 - Improvement in Food Resources>Multiple Choice Questions (MCQs)>Q 12
Weeds affect the crop plants by
 
EASY
9th CBSE
IMPORTANT
Secondary Biology FIrst And Second Term of CLASS IX>Chapter 6 - Improvement in Food Resources>Multiple Choice Questions (MCQs)>Q 13
Which one of the following species of honey bee is an Italian species?