2023 Volume 49 Issue 1 Pages 39-44
In order to clarify the treatment of promoting germination of Pennisetum alopecuroides (L.) Spreng., germination tests were conducted on caryopses and spikelets. As a result caryopses germinated earlier than spikelets when the temperture is between 15-30℃. In particular, when it's 15℃ and 20℃, the germination rate of caryopses reached 90% half a month earlier spikelets. When spikelets or caryopses were stored at 5°C or 15°C and then sown at 10°C or 15°C, they germinated more than one month earlier than immediately after collection. 90% of damaged caryopses germinated about 15 days after sowing. The moisture content of germinated caryopses was higher than ungerminated one inside spikelets. According to these results, it is thought that the positive correlation was confirmed between moisture content of caryopses and germination rate. Involucrums and husks may inhibit water absorption by caryopses in spikelets
