| 超声波处理对华南双季晚稻产量和稻米品质的影响 |
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| 引用本文： | 姚澜,萨如拉.超声波处理对华南双季晚稻产量和稻米品质的影响[J].农学学报,2020,36(6):1-4. |
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| 作者姓名： | 姚澜 萨如拉 |
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| 作者单位： | 1. 广东省农业科学院水稻研究所/广东省水稻育种新技术重点实验室,广州 510640;2. 广州市金稻农业科技有限公司,广州 510075 |
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| 基金项目： | 国家自然科学基金(31760372);内蒙古民族大学教育教学研究课题“第二课堂本科生基本实验技能培养研究”(QN2017015)。 |
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| 摘 要： | 超声波是一种可改变植物种子生理性状的机械波,对水稻具有增产增效作用。本研究以杂交稻‘五丰优615’和常规稻‘粤农丝苗’为材料,采用双频率20 KHz和40 KHz超声波处理种子,以不采用超声波处理为对照,探讨超声波处理对水稻产量和稻米品质的影响。结果表明,与对照相比,超声波处理下,‘粤农丝苗’稻谷产量增加7.31%,达到显著水平;‘五丰优615’稻谷产量提高3.68%,未达到显著水平。每穗颖花数增加是超声波处理提高稻谷产量的主要原因。‘粤农丝苗’品质分析结果表明,超声波处理使稻米胶稠度、直链淀粉含量、蛋白质含量分别增加了14.4%、4.6%和4.3%（相对值）,差异达显著水平(P<0.05),其它稻米品质指标无显著变化。
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| 关 键 词： | 超声波 水稻 产量 稻米品质 |
| 收稿时间： | 2018/11/22 0:00:00 |
| 修稿时间： | 2019/6/15 0:00:00 |
Allelochemicals: Effects on Growth Characteristics of Maize Seeds and Seedlings |
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| Fu Youqiang,Liu Yanzhou,Liang Kaiming,Yan Zhouchen,Zhong Xuhua,Huang Nongrong,Pan Junfeng,Hu Xiangyu,Peng Bilin.Allelochemicals: Effects on Growth Characteristics of Maize Seeds and Seedlings[J].Journal of Agriculture,2020,36(6):1-4. |
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| Authors: | Fu Youqiang Liu Yanzhou Liang Kaiming Yan Zhouchen Zhong Xuhua Huang Nongrong Pan Junfeng Hu Xiangyu Peng Bilin |
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| Institution: | 1. Rice Research Institute of Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory of New Technology for Rice Breeding, Guangzhou 510640, Guangdong, China;2. Guangzhou Golden Rice Agricultural Science & Technology Co., Ltd., Guangzhou 510075, Guangdong, China |
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| Abstract: | The paper aims to study the effects of allelochemicals in straw on the germination of maize seeds and growth characteristics of seedlings. We set different concentrations of mixed acid solutions of p- hydroxybenzoic acid, phthalic acid, benzoic acid, syringic acid and vanillic acid as treatments, and cultivated maize seeds and seedlings, determined their physiological indexes by taking distilled water as control (CK). The results showed that: the mixed acid solutions significantly reduced the germination rate and radicle length of maize seeds; the mixed acid solutions of 100 mg/L, 200 mg/L and 500 mg/L significantly reduced hypocotyl length and the root activity of maize seedlings; the catalase activity of mixed acid solutions were higher than that of CK, and there was no significant difference; with the increase of mixed acid concentration, MDA content in maize leaves increased gradually. Mixed acid solution of above 50 mg/L concentration could inhibit the growth of maize seeds and seedlings. |
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| Keywords: | allelochemicals maize seeds germination rate MDA root activity |
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