conservation of navajo maize genetic resources: the in-situ versus ex-situ approach
DESCRIPTION
Introduction Conservation of plant genetic resources differ depending on whether they are approached using in-situ and ex-situ approach at the North Central Regional Plant Introduction Station accessions and compared it with my in-situ accessions back home in New Mexico. . - PowerPoint PPT PresentationTRANSCRIPT
Conservation of Navajo Maize Genetic Resources: The In-Situ versus Ex-Situ ApproachIrene Bitsóí
Irene Bitsoi 1,2; Lisa Burke 1,3; Candice Gardner; 1,3; Carolyn Lawrence 1,4
1. Iowa State University, Ames, IA 50011; 2. University of New Mexico, Albuquerque, NM 87102; 3. USDA-ARS,
PIRU, Ames, IA 50011; 4. USDA-ARS, CICGRU, Ames, IA 50011.
IntroductionConservation of plant genetic resources differ depending on whether they are approached using in-situ and ex-situ
approach at the North Central Regional Plant Introduction Station accessions
and compared it with my in-situ accessions back home in New Mexico.
In-Situ Conservation–Within Culture Approach
Ex-Situ Conservation – The Genebank
Conclusion
References and AcknowledgmentsKiesselbach, T.A. The structure of Reproduction of Corn, Cold Spring Harbor, New York: Cold
Spring Harbor Laborartory Press, 1999Moerman, Daniel E. 1998 Native American Ethnobotany Timber Press: Portland
The Ritual Meaning of Corn Pollen Among the Navajo Indians by Thomas M. Raitt from Colled of Wooster
• Seeding rate • Corn yield• Ears per plant• Proper preparation• Types of corn grown• Breeding• Plant Genetics
• Pollination• Meaning behind corn• Genebank• Seeds• Germplasm
Aerial view of the Plant introduction farm
NCRPIS employees thinning corn in a regeneration field
NC7 staff member working in cold storage vault
Corn field in NM
Compare and Contrast
In-Situ pollen collection
Ex- Situ Pollen Collection
The Navajo corn that is traditionally grown in an
example of in-situ conservation of landrace crop plant. In-situ
conservation protects the cultural tradition that the variety
was developed in thus conserving biodiversity.
The ex-situ conservation involves maintaining varieties off site. Its purpose is to protect the species (maize) outside of the natural habitat. NCRPIS is a crop
genebank that conserves crop plants and their wild and weedy relatives using the
ex-situ conservation.
In conclusion, after comparing and contrasting the corn from the Navajo reservation and corn from plant
introduction station they have variation changes from corn yield to pollination. This is good in several different
ways because it preserves the meaning of in-situ conservation and ex-situ conservation.