Materials and equipment
1. Measuring equipment growth, such as reed height (measuring pole) and tape measure grown (diameter tape) vernier calipers. (vernier caliper)
2.Sand grain, including mesh plastic pipe, plastic bags, and PVC steel hammer
3. Equipment for separating seeds; Scissors, scales, paper bags, plastic bags, and tray
4.Equipment for sowing seeds, including sand box bag black loam
5. A device to measure the size, including seed, ruler, vernier calipers. And the note book
6.A device for maintaining seeds, including spray water and Antifungi
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