1. Hermetic Storage as a Solution for Prolonged Storage of Seed Presentation to Purdue Hermetic Storage Conference April 10-12, 2012 Accra, Ghana

2. Rule of Harrington (1972) “ Life of seed is halved: • a.for each 5o increase in seed storage temperature • b. for each 1% increase in seed moisture content “

3. “…rice seeds held in airtight storage outlive seeds held in open storage provided they are adequately dried before they are placed in airtight storage …..Rice seeds dried by high heat before sealing were dead after 26 to 28 years, but seeds dried by the sun to 11-13 % MC were stored safely for 30 years” (Kondo and Okumura, Japan 1930-1932)

4. Methodology STORAGE METHODS Plastic material:Polyvinyl chloride Capacity :7.5 cu m Dimension :2.95x 1.70 x 1.5m Thickness :0.80 – 0.85mm Color :White Hermetic storage Fabrication :HF welded

5. Methodology BUILDING OF EXPERIMENTAL PILES GrainPro Cocoon Bottom section Loading/piling Height capacity Weighing Top section Zipper keys Complete set-up

6. Salient Findings OXYGEN CONCENTRATION

7. Salient Findings TEMPERATURE

8. Salient Findings RELATIVE HUMIDITY

9. Salient Findings SEED GERMINATION

10. Salient Findings SEED VIGOR

11. Salient Findings MOISTURE CONTENT

12. Summarizing • Under HS conditions germination can be preserved for long time. Longest track record is 14 months • HS performs better than AC storage and almost as good as cold storage • Seed vigor is kept high • Findings of trials with other GrainPro products as SuperGrainbags, GrainSafes show same results as GrainPro Cocoons • Results with maize, sorghum, soybeans are similar

13. THANK YOU !GrainPro Inc 200 Baker Ave, Suite 309, Concord MA 01742, USATel.+1-978-371-7118 Fax +1-978-371-7411 sales@grainpro.comGrainPro Philippines Inc : Subic Bay Gateway Park salesasia@grainpro.comTel.+63-47-2527884 Fax +63-47-2527885www.grainpro.comData: Research By GrainPro, Philrice and Philmec 2006