What does the germination percentage refer to in seed testing?

The germination percentage is an essential metric in seed testing, reflecting the viability of seeds. Specifically, it indicates the percentage of seeds that are expected to successfully germinate under optimal conditions. This measurement is critical for farmers, gardeners, and anyone involved in seed production or usage, as it provides insight into how well a batch of seeds will perform when planted.

Understanding the germination percentage helps users make informed decisions about the quality and efficacy of seeds. For example, a germination percentage of 90% means that, ideally, 90 out of 100 seeds are expected to sprout, which is a strong indicator of seed quality. This measurement is not only linked to the seed's capacity to grow but also affects planting rates and potential crop yields.

Other options, while related to seeds, do not specifically define the germination percentage. The rate of seed weight loss pertains more to storage conditions and seed quality over time, the number of seeds sold relates to supply management and sales rather than germination effectiveness, and the length of time seeds can be stored involves seed longevity rather than their potential to grow. Thus, the germination percentage is distinctly tied to the measure of seed viability and potential growth, making it a crucial aspect of seed testing.