Seed storage of corn and sorghum for genetic conservation
1999
Chatpong Balla | Rachain Thiraporn | Chokechai Aekatasanawan (Kasetsart Univ., Bangkok (Thailand). Faculty of Agriculture)
In 1995-1996, varietal discriptions of 213 corn varieties of the National Corn and Sorghum Research Center were made. In this year (1997), 263 varieties were evaluated and data was collected in 7 yield trials. The results of a seed storage study comparing germination of fresh seed with stored seed showed significant differences in sorghum kept in paper bags and plastic bags after 12 months of storage at 14 deg C and 0 deg C, respectively. After 18 months, there were significant differences in sorghum kept in paper bags at 0 deg C and there were significant differences in sorghum kept in plastic cans at 0 deg C after 36 months too. In corn, only corn kept in paper bags at 14 deg C and 0 deg C showed significant differences. At 14 deg C and 0 deg C, there was no damage in both sorghum and corn after 36 months. Eighty-one old corn accessions, stored in 1986, were regenerated in the dry season planting and balanced composites of seed of each were stored at deg C and 0 deg C.
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