| 基于双向温度梯度系统的槟榔萌发及生理响应 |
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| 引用本文： | 黄丽云,李东霞,陈君,刘立云,周焕起.基于双向温度梯度系统的槟榔萌发及生理响应[J].热带作物学报,2019,40(8):1501-1506. |
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| 作者姓名： | 黄丽云 李东霞 陈君 刘立云 周焕起 |
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| 作者单位： | 1. 中国热带农业科学院椰子研究所,海南文昌 5713392. 中国热带农业科学院槟榔研究中心,海南文昌 571339 |
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| 基金项目： | 海南省重大科技计划项目(No.ZDKJ201817-3-1);槟榔产业技术创新团队-槟榔优质种苗培育与繁育项目(No.1630152017013);中央财政林业科技推广示范资金项目(No.2018-TG05) |
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| 摘 要： | 本研究以‘热研1号’槟榔种子为供试材料,借助双向温度梯度系统控制面板设置49个昼夜温度处理（最高温区48 ℃,最低温区20 ℃）,研究其对种子萌发率、生长状况及生理响应的影响。结果表明：槟榔种子萌发最佳昼夜温度组合为29/25 ℃,萌发率100%,生长态势最佳;20/20 ℃条件下槟榔种子有萌发,但发芽率为80%,种子长势一般;48/48 ℃条件下种子不萌发。根据长势状况,以及酶活（SOD、POD、GR）测定,明确了最适于种子萌发及生长的温度范围为25/20~34/25 ℃。另外种子萌发所需日积温560~744 ℃·h为宜,萌发总积温不宜超过24 864 ℃·h。实验还证实了槟榔种子变温处理比常温萌发效果更好。
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| 关 键 词： | 双向温度梯度系统 槟榔 萌发 生理生化 |
| 收稿时间： | 2019-01-30 |
Germination and Physiological Response of Areca catechu L. to Temperature Differentials on the 2-way Grant’s Thermogradient Plate |
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| HUANG Liyun,LI Dongxia,CHEN Jun,LIU Liyun,ZHOU Huanqi.Germination and Physiological Response of Areca catechu L. to Temperature Differentials on the 2-way Grant’s Thermogradient Plate[J].Chinese Journal of Tropical Crops,2019,40(8):1501-1506. |
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| Authors: | HUANG Liyun LI Dongxia CHEN Jun LIU Liyun ZHOU Huanqi |
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| Institution: | 1. Coconut Research Institute, Chinese Academy of Tropic Agricultural Sciences, Wenchang, Hainan 571339, China2. Arecanut Research Center, Chinese Academy of Tropical Agricultural Sciences, Wenchang, Hainan 571339, China |
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| Abstract: | The effect of germination rate, growth conditions, physiological response of Arecanut was studied using the 2-way grant’s thermogradient plate which allows 49 temperature combinations (regimes) (20 ℃ to 48 ℃) of single temperature and alternating temperature combination over a time continuum. Under the best temperature combination 29/25 ℃, the seed germination rate was 100% and the growth potential was the best. When temperature was 20/20 ℃, the germination rate was 80%, and the growth was general. The 48/48 ℃ treatment did not have any effect. According to the germination rate, growth conditions and physiological response (SOD, POD, GR), the most suitable temperature range was 25/20-34/25 ℃. In addition, the optimum reaction accumulated temperature was 560-744 ℃·h, and the total germination temperature should not exceed 24 864 ℃·h. The experiment also supported that the alternate temperature treatment was better than the normal temperature treatment for the seed germination rate and growth of Arecanut. |
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| Keywords: | 2-way grant’s thermogradient plate areca germination physiological response |
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