Enzyme activity- Dehydrogenase activity- viability test through TZ test

Bio markers for seed quality testing

Protein profiles- loss of protein subunits with advancement in ageing and loss of viability

100 100 37 22 0 0 % Germination %

Bio markers for seed quality testing

DNA integrity-. Loss of DNA integrity and shearing of DNA with advancement in ageing and loss of viability

Note; M-marker, D-Days after accelerated ageing

F 3D 6D 9 D 12D 15D M

Bio markers for seed quality testing

Genetic purity testing- Biochemical and Molecular markers

Proteins- storage proteins

Dominant markers

Staining sensitive

Compact profile –difficult to identify though markers present

Bio markers for seed quality testing

F H M F H M

Isozymes- Peroxidases

Co-dominant

Non-toxic

Staining sensitive and stage specific

Markers from both the parent

Bio markers for seed quality testing

F H M

DNA markers- SSR markers

Co-dominant

Reliable and stable

Markers from both the parent

Note: F- female parent H- hybrid M-male parent

Crop: Chillies

Bio markers for seed quality testing

India Gov MyGov Farmer Portal ICAR MIDH National Horticulture Board Krishi Portal