| 耐黄腐酸水稻品种筛选及其生理响应 |
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| 引用本文： | 唐易,杨浩娜,彭亚军,郭亚楠,杨蕾,王立峰.耐黄腐酸水稻品种筛选及其生理响应[J].杂交水稻,2022(1):116-121. |
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| 作者姓名： | 唐易 杨浩娜 彭亚军 郭亚楠 杨蕾 王立峰 |
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| 作者单位： | 湖南大学研究生院隆平分院;湖南省农业科学院农业生物技术研究所;湖南省农业科学院植物保护研究所 |
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| 基金项目： | 国家重点研发计划项目(2017YFD0301505);长沙市杰出创新青年培养计划(kq1802013);国家自然科学基金(31601652);长沙市自然科学基金资助项目(kq2014168)。 |
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| 摘 要： | 前期研究发现,在淹水条件下黄腐酸能显著抑制稗草生长,具有防控水田稗草的潜力,而评估黄腐酸对水稻的安全性是利用其进行稻田稗草防治的重要前提,因此,对水稻安全性进行系统测评具有重要意义.本研究在模拟田间淹水条件下加入0.8 g/L黄腐酸溶液处理24个水稻品种幼苗,测定其株高、根长和株鲜重的抑制率,筛选出耐黄腐酸水稻品种并对...
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| 关 键 词： | 水稻 黄腐酸 酶活力 品种筛选 控草 |
Screening of Fulvic Acid-tolerant Rice Varieties and Their Physiological Responses |
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| TANG Yi,YANG Hao-na,PENG Ya-jun,GUO Ya-nan,YANG Lei,WANG Li-feng.Screening of Fulvic Acid-tolerant Rice Varieties and Their Physiological Responses[J].Hybrid Rice,2022(1):116-121. |
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| Authors: | TANG Yi YANG Hao-na PENG Ya-jun GUO Ya-nan YANG Lei WANG Li-feng |
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| Institution: | (Longping Branch,Graduate School of Hunan University,Changsha,Hunan 410125,China;Agricultural Biotechnology Research Institute,Hunan Academy of Agricultural Sciences,Changsha,Hunan 410125,China;Institute of Plant Protection,Hunan Academy of Agricultural Sciences,Changsha,Hunan 410125,China) |
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| Abstract: | According to previous studies,fulvic acid can significantly inhibit the growth of barnyard grass(Echinochloa crusgalli)under flooding conditions,which has the potential of controlling barnyard grass in paddy field.The safety evaluation of fulvic acid on rice is an important prerequisite for using fulvic acid to control barnyard grass in paddy field.Therefore,it is of great significance to systematically evaluate the safety of rice.In this paper,the seedlings of 24 rice varieties were treated with 0.8 g/L of fulvic acid solution under simulated flooding conditions.According to the inhibition rate of seedling height,root length and fresh plant weight,the rice varieties resistant to fulvic acid were selected,and their enzyme activities in stem and leaf were determined,which were further verified by a rice-barnyard grass symbiosis experiment.The results showed that 0.8 g/L of fulvic acid had no inhibitory effects on seedling height,root length and fresh plant weight of four rice varieties including Chuangliangyou 669,Longjingyou 534,Longyou Simiao and Jinguyou 3301,but had inhibitory effects on the other rice varieties.The activities of superoxide dismutase(SOD),peroxidase(POD),catalase(CAT)and glutathione transferase(GST)in stem and leaf of four fulvic acid-tolerant rice varieties and one fulvic acid-sensitive rice variety(Longyou 4945)were measured.The results showed that the enzyme activities of SOD,POD,CAT and GST increased in the fulvic acid-tolerant rice varieties but decreased in the fulvic acid-sensitive rice variety.The rice-barnyard grass symbiosis experiment showed that 0.8 g/L of fulvic acid could significantly inhibit the growth of barnyard grass,but had no inhibitory effects on the growth of rice varieties resistant to fulvic acid,which provides a new idea for the ecological prevention and control of barnyard grass in paddy field. |
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| Keywords: | rice fulvic acid enzyme activity variety screening weed control |
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