Varietal improvement and conservation nursery production; the key to a successful industry - kim wilson

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Varietal improvement and conservation nursery production; the key to a successful industry - kim wilson

  1. 1. Nursery Production The Key to a successful Industry Kim Wilson Gray Plantations
  2. 2. “The Forgotten Sector”The nursery is equally important as the processor & grower.Poor quality trees are with you for the life of the orchard.Poor NIS prices are only there for 1 year!!!!
  3. 3. Nursery Production in AustraliaNurseries & Orchard RejuvenationNurseries around the WorldNursery AccreditationNursery R & D
  4. 4. Nursery Production in Australia• 30 years experience – watching• Demand for trees closely follows NIS price.• > 90% Grafted – H2 Rootstock• Small % - Budding & Cutting – variety related• Process – Germination - Sand beds – Potting up – 8lt bags – Grafting
  5. 5. Nursery Production in AustraliaSeed germination18 – 24 months
  6. 6. Nursery Production in AustraliaCurrently very strong demand (high NIS)  18 month – 24 month waitCurrent varieties North  842  A203  Daddow  741 South  842  816  246  741
  7. 7. Nursery Production in AustraliaLot of nurseries come & go  Mainly due to waiting timeOnly two large commercial nurseries  Others supplying own needs  General fruit tree nurseries
  8. 8. Nurseries & Orchard Rejuvenation• Obviously nurseries will play a big part – Commercial nurseries – Nursery for own use• Rejuvenation – Existing varieties – New varieties from breeding program• I believe anybody propagating the new varieties should require approval – AMS
  9. 9. Nurseries & Orchard Rejuvenation• Based on current methods of propagation nurseries will require a large source of scion wood. – Preferably close to nursery – Trees need to be a few years old at least – Varieties clearly identified – These trees can’t be data trees• Release of Regional Variety Trial scion wood in the late 80’s??????????
  10. 10. Nurseries around the World• Poor nursery stock• Poor orchards trees• Poor performance• Major influence on quality Potting Mix Water quality
  11. 11. Brazil – Most good quality
  12. 12. South Africa
  13. 13. Vietnam – Most nursery poor quality – 1 very good quality 100,000 seedlings
  14. 14. China – Many nurseries, mixed quality
  15. 15. Thailand - Marcotting
  16. 16. Burma – 100,000 seedlings
  17. 17. Sri Lanka – Trials 2,000 trees
  18. 18. Nursery Accreditation• The AMS has no official “Accreditation scheme”• Nursery Industry – N. I. A. S. A.• Strong demand = back yard nurseries Can lead to poor qualityI like the SAMAC system of “affiliated nurseries”
  19. 19. Nursery R & D• Australian industry spend $2m / year on R&D• Zero $ on nursery R & D• Why do the two largest producing countries propagate in complete opposite ways?• Why do we still use H2 rootstock?• Cuttings – Large numbers would be difficult sell. !!!!
  20. 20. Nursery R & D• Why don’t we “mini” graft?• Producing nursery stock is expensive & not very profitable. – Researched Avocadoes, Citrus etc – Most sell at higher price & quicker to grow• Perhaps there is an opportunity for joint R & D between countries!!!!!!!!!
  21. 21. Thank You

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