EFFECTS OF STORAGE CONDITIONS AND SEED SCARIFICATION ON SEED GERMINABILITY OF FIVE MULTIPURPOSE TREE SEEDS
Keywords:
Seed germination, multipurpose tree seeds, seed storage, seed treatmentAbstract
The study was conducted at University of Agriculture, Abeokuta, Ogun State, Nigeria. A total of 6750 seeds of five pasture legume species each, were stored under five storage conditions: refrigerator: deep freezer; wooden box with silica gel; earthen pot and unstored for 9 months. Seeds were sampled at of 30 days interval. They were scarified with concentrated sulphuric acid, sand paper, hot water at 60oC for 10 minutes, hot water at 100oC for less than one minute and the unscarified (control). After scarification, 10 (ten) seeds of each legume species under different storage conditions were placed on moistened cotton wool in petri dishes under laboratory condition for germination. The experiment was 5x5x9 factorial arrangement (legume species. storage conditions and storage periods) replicated three times. The data collected at monthly interval were subjected to General Linear Model of Minitab (1999). The results of this experiment showed that the highest germination was recorded in seeds stored in earthen pot (74.91%) followed by seeds stored in deep freezer (48.47%). The unstored seeds had the least germination (10.74%). With the earthen pot, germination was highest from Albizia saman (AS) seeds (87.63%), when Enterolobium cyclocarpum (EC) seeds had 84.49% with Telphro sia bracteolata (TB) having the least germination of 17.26%. Also, the highest germination was in hot water treatment at 600C (41.48%) which was closely followed by seeds treated with sand paper (40.74%) while untreated seeds (control) had the least germination percentage. In conclusion, forage legume seeds are better stored in cool environment with the earthen pot creating a cool and natural environment with no fluctuation in electricity. Using hot water at 600C and mechanical scarification with sandpaper having similar percentage germination of seeds. Storing seeds for six to seven months had the highest germinations of seeds.
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