Question

Difference b/t varietis and hybrids on the basis on plant breeding

Answer 1

Answer:

In a Synthetic Variety lines are tested for Genetic Combining Ability

Composite Variety lines are not tested for Genetic Combining Ability

1

In a Synthetic Variety Crossing in all combination of number of lines that combine well with each other is performed

In a Composite variety lines  are mixture of the seeds of several phenotypically outstanding lines it and encouraging open pollination to produce crosses in all combination among the lines

2

In a synthetic Variety 4-10 numbers of parents are involved.

In a Composite varitey Many numbers of parents involved.

3

In a synthetic variety it is tested for GCA.

In a composite it is not tested for GCA

4

In a synthetic variety the Cost of seed is less than composite variety.

In a composite variety the Cost of seed is less than hybrid.

5

In a synthetic variety there It shows less heterosis than hybrid.

IIn a composite variety there is more heterosis than synthetic.

6

In a synthetic variety it is reconstituted or re done

In a composite variety it is never Reconstituted.

7

In a synthetic variety Prediction of performance possible.

In a composite Prediction of performance is not possible.

8

In a synthetic maintenance of variety easy.

In a composite maintenance of variety is difficult but easier than hybrid.

9

Ex. ICMS- 7703, ICMS-7704

Ex. ICTP-8203, WCC-75.

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