1. Structure and Morphology of grasses Jonathan Urra Aitor Pinillos

2. This presentation is about grasses, their structure and morphology generaly, explaining the most importants parts of them, to demostrate the importance they have in our planet and in our agriculture productions.

7. GERMINATION AND EMERGENCE 1st root system -Sign of germination --> emergence of the radical (primary root). -In seedling development up to five seminal roots may emerge – very important early on for water uptake and nutrient absorption. - The epicotyl elongates to emerge from the seed and agreement toward the soil surface. -This root system is short-lived 2nd root system -> Next, the mesocotyl ( between scutellar and coloptilar nodes) also elongates. -In warm-season grasses very close to the soil surface.