Difference between Synthetic and Composite Variety
Crossing in all combination of number of lines that combine well with each other
Mixing the seeds of several phenotypically outstanding lines it and encouraging open pollination to produce crosses in all combination among the lines
4-10 numbers of parents are involved.
Many numbers of parents involved.
It is tested for GCA.
Not tested for GCA
Cost of seed is less than composite variety.
Cost of seed is less than hybrid.
It shows less heterosis than hybrid.
It shows more heterosis than synthetic.
Reconstituted is done
Reconstituted is never done.
Prediction of performance possible.
Prediction of performance is not possible.
Maintenance of variety easy.
Maintenance of variety is difficult but easy than hybrid.
Ex. ICMS- 7703, ICMS-7704
Ex. ICTP-8203, WCC-75.