Effect of rice straw extract on seed germination and seedling growth of some plants
2011
Bittawat Wichaidist(Kasetsart University, Bangkok (Thailand). Faculty of Science. Department of Botany) E-mail:[email protected] | Srisom Suwanwong(Kasetsart University, Bangkok (Thailand). Faculty of Science. Department of Botany) | Lily Kaveeta(Kasetsart University, Bangkok (Thailand). Faculty of Science. Department of Botany)
Study on effects of rice straw extract on seed germination and seedling growth of giant mimosa were investigated. Aqueous extract at high temperature of rice straw cultivars Khao Dawk Mali 105, RD 6, RD 10, RD 27, RD 29, RD 41, Chai-nat 1, Chai-nat 2, Niaw San-pah-tong, Pathum Thani 1 and Suphan Buri 60 at 5.00 g/l with 10 replications per treatment were used in this experiment. The results showed that the extracts did not inhibit seed germination but inhibited shoot and root growth of giant mimosa. Chai-nat 1 extract was the best extract that inhibited seedling growth of giant mimosa. The shoot length and root length of giant mimosa that treated with this extract were 1.20 and 0.83 centimeter, which were significantly different from the control. The effect of Chai-nat 1 extract at 1.25, 2.50, 3.75 and 5.00 g/l on seed germination and seedling growth of giant mimosa, mung been, barnyard grass and rice, distilled water was used as control, showed that the extract did not inhibit seed germination but inhibited seedling growth of all tested plants and the inhibition was increased by increasing the extract concentrations.
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