Explain mass selection and pure line selection. How is pure line selec

1.	Explain mass selection and pure line selection. How is pure line selection a better method for crop Improvement?
Answer» Mass selection – Most common and old method of crop selection. In this selection, large num-ber of similarly appearing plants are selected for the desired trait and their seeds are mixed together which is then sown to raise new crops. Pure line selection : It is the progeny of a single homozygous self-pollinated plant. The single plant of the desired trait is selected out of the variable populate in the field. Seeds from the selected plants are sown in different rows to produce progeny by self-pollination. Pure line selection is better method because the selected plants retain desirable characters for several generation.

Explain mass selection and pure line selection. How is pure line selection a better method for crop Improvement?

Answer»

Mass selection – Most common and old method of crop selection. In this selection, large num-ber of similarly appearing plants are selected for the desired trait and their seeds are mixed together which is then sown to raise new crops.

Pure line selection : It is the progeny of a single homozygous self-pollinated plant. The single plant of the desired trait is selected out of the variable populate in the field. Seeds from the selected plants are sown in different rows to produce progeny by self-pollination.

Pure line selection is better method because the selected plants retain desirable characters for several generation.

Discussion

No Comment Found

Related InterviewSolutions

A plant is kept in a dark cupboard for about 48 hours before conducting any experiment on photosynthesis to :(A) Remove starch from the plant. (B) Ensure that starch is not translocated from the leaves. (C) Remove chlorophyll from the leaf of the plant. (D) Remove starch from the experimental leaf.
The producer of Lime Fresh’ tea introduces ‘Buy one Get one’ scheme on all the products of ‘Lime Fresh’. Identify the promotional strategy’ used by the producer. State any one objective that could be met by this strategy.
A stringed musical instrument, such as the sitar,is provided with a number of wires of different thicknesses. explain the reason for this.
Mention whether the following would result in inflow, outflow or no flow of cash :(i) Issue of fully paid Bonus Shares (ii) Cash withdrawn from Bank
State with reason whether the following would result in inflow, outflow or no flow of cash :(i) Charging depreciation on furniture. (ii) Cash withdrawn for bank for office use.
Give four points of anatomical differences between a monocot stem and a dicot stem.
State the conditions required for total internal reflection of light to take place.
State the conditions required for total internal reflection of light to take place.
(i) When does a ray of light falling on a lens pass through it undeviated ? (ii) Which lens can produce a real and inverted image of an object ?
When acoustic resonance takes place a loud sound is heard. Why does this happen ? Explain.