Seed Vigor Assessment in Agricultural Crops

Seed vigour encompasses the overall capacity of seeds to germinate rapidly and uniformly and to establish healthy seedlings under a range of environmental conditions. It extends beyond simple germination percentage to capture dynamic traits such as germination speed, seedling growth and resilience to stress. Conventional laboratory assays include measurement of radicle emergence timing, mean germination time, accelerated ageing or controlled deterioration, electrical conductivity of seed leachate and biochemical staining techniques. These tests serve as predictors of field emergence under suboptimal conditions, including drought, salinity and temperature extremes. Advances in high‐throughput imaging, automated germination chambers and molecular markers are refining vigour assessment by linking physiological indicators with underlying metabolic and genetic profiles. Rigorous vigour testing underpins seed certification, breeding for stress resilience, optimization of storage protocols and management of genetic resources. In the context of climate variability and global food security, accurate vigour evaluation is indispensable for ensuring uniform crop stands, maximising yield potential and reducing losses. Standardisation of methods across crop species remains a challenge, as does the integration of novel biomarkers into practical schemes for seed producers, regulatory agencies and farmers worldwide.

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Seed Vigor Assessment in Agricultural Crops publication trend

The graph below shows the total number of articles in seed vigor assessment in agricultural crops across all publications each year (not limited to Nature Index journals).

Technical terms

Seed vigour: The overall potential of a seed lot to germinate quickly and uniformly and to produce robust seedlings under varied conditions.

Radicle emergence (RE) test: A vigour assay measuring the proportion or timing of seeds whose embryonic root (radicle) protrudes beyond a set threshold.

Mean germination time (MGT): The average time taken for seeds in a sample to complete germination, indicating germination speed.

Vigour index (VI): A composite metric combining germination percentage and seedling growth parameters to quantify physiological potential.

P50 (half‐viability period): The time required under controlled ageing conditions for seed viability to decline to 50% of its initial value.

References

1. Siberian Wildrye (Elymus sibiricus) Seed Vigor Estimation for the Prediction of Emergence Performance under Diverse Environmental Conditions. Agronomy (2024).
2. Seed Longevity Potential Predicted by Radicle Emergence (RE) Vigor Test in Watermelon Seed Cultivars. Horticulturae (2023).
3. Radicle Emergence as Seed Vigour Test Estimates Seedling Quality of Hybrid Cucumber (Cucumis sativus L.) Cultivars in Low Temperature and Salt Stress Conditions. Horticulturae (2022).