Certified Crop Advisor Practice Exam

What is the minimum requirement for pure live seed (PLS) to achieve effective seeding in crops?

1. 90%

2. 70%

3. 60%

4. 80%

The correct answer is: 80%

The minimum requirement for pure live seed (PLS) is generally set at 80% to ensure effective seeding in crops. Achieving this percentage means that at least 80% of the seed is viable and capable of germinating, which is crucial for establishing a good crop stand. This level of purity and viability ensures that the seeds will not only germinate effectively but also grow into healthy plants that can compete for resources such as light, water, and nutrients. Seed effectiveness is key for farmers and agronomists when planning for crop yields, as lower percentages of PLS can lead to unproductive stands, increased weed pressure, and ultimately diminished harvests. By maintaining an 80% threshold, growers can be more confident in the performance and productivity of their sowing practices, leading to more efficient and cost-effective crop management.