Effect of temperature on seed germination of Bombax costatum Pellegr. & Vuill. (Malvales: Malvaceae) from Ondo and Oyo States, Nigeria

M. Ojo
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Abstract

Effect of temperature on seed germination of Bombax costatum Pellegr & Vuill. (Malvales: Malvaceae), from four provenances in South Western Nigeria was investigated. A set of three replicates of 25 seeds per provenance were used for the experiment which was laid in a completely randomized block design. The seeds were exposed to fire temperature regimes for germination tests: 28 oC, 20 oC, 5 oC, 35 oC and 20 oC. Seed germination was recorded for 4 weeks. Data obtained were subjected to analysis of variance. Result showed that significant differences in seed germination under varying temperature regimes (P < 0.05). Interaction effect between temperature and provenances was not significant (P < 0.05). Seeds placed in ambient temperature had the highest mean number of germination (20.75) while the least mean value (0.17) was observed for cold room (-20 oC). B. costatum seeds should be exposed to ambient temperature so as to promote seed germination.
温度对黄颡鱼种子萌发的影响。& Vuill。(马尔代夫语:Malvaceae)来自尼日利亚翁多州和奥约州
温度对黄颡鱼种子萌发的影响。(Malvales: Malvaceae),来自尼日利亚西南部的四个种源。试验采用完全随机区组设计,每个种源设置3个重复,每个重复25粒种子。将种子暴露在28℃、20℃、5℃、35℃和20℃的火温下进行发芽试验。记录种子萌发4周。所得数据进行方差分析。结果表明,不同温度下种子萌发率差异显著(P < 0.05)。温度与种源间互作效应不显著(P < 0.05)。常温下种子平均发芽率最高(20.75),低温(-20℃)萌发率最低(0.17)。海参种子应置于环境温度下,以促进种子萌发。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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