Seed viability
It is the measure of a seed's potential to germinate and develop into a normal seedling under suitable environmental conditions.
Также говорят: seed potential, seed biological activity, germination capacity
Assessing seed viability is essential for predicting field emergence and ensuring the desired plant population density. Unlike standard germination tests, viability determines if seeds that appear dormant or inactive are actually alive and capable of future growth.
This evaluation is performed before sowing, especially when utilizing carry-over seed stocks or batches harvested under stressful conditions. Precise testing is crucial for adjusting seeding rates effectively, preventing both sparse stands and excessive plant density that compete for resources.
A common mistake is neglecting viability testing for aged seeds or those exposed to heat stress. Agronomists often confuse viability with germination energy, which can lead to significant errors when deciding to plant in cold or waterlogged soil conditions.