抽穗期叶面喷施鸟氨酸对香稻产量、品质以及2-乙酰基-1-吡咯啉生物合成的影响  

Effects of Foliar Ornithine Spraying at Heading Stage on Yield,Quality and 2-Acetyl-1-Pyrroline Biosynthesis of Fragrant Rice

作　　者：邢丕鹏 黄彦峰 易思媛 兰儒剑 潘圣刚[1] 莫钊文 田华[1] 段美洋[1] 唐湘如[1] Xing Pipeng;Huang Yanfeng;Yi Siyuan;Lan Rujian;Pan Shenggang;Mo Zhaowen;Tian Hua;Duan Meiyang;Tang Xiangru(State Key Laboratory for Conservation and Utilization of Subtropical Agricultural Bioresources,South China Agricultural University/Scientific Observing and Experimental Station of Crop Cultivation in South China,Ministry of Agriculture and Rural Affairs/Guangzhou Key Laboratory for Science and Technology of Aromatic rice,Guangzhou 510642,Guangdong,China)

机构地区：[1]华南农业大学亚热带农业生物资源保护与利用国家重点实验室/农业农村部华南地区作物栽培科学观测实验站/广州市丝苗香米科学与技术重点实验室,广东广州510642

出　　处：《作物杂志》2023年第3期134-138,共5页Crops

基　　金：国家自然科学基金(31971843);广东省现代农业产业技术体系(2020KJ105);广州市科技计划项目(202103000075)。

摘　　要：为探究抽穗期叶面喷施鸟氨酸对香稻产量、品质以及2-乙酰基-1-吡咯啉(2-AP)生物合成的影响,以广东省主推香稻品种美香占2号为材料,进行了2年的大田试验,于抽穗期对香稻植株喷施不同浓度的鸟氨酸溶液,对香稻产量及其构成因素、稻米品质和2-AP合成特性进行比较分析。结果表明,喷施浓度为0.4~1.6g/L的鸟氨酸溶液可显著增加灌浆期剑叶叶绿素含量,提高香稻的产量以及稻米的粗蛋白含量,降低垩白度和垩白粒率。与对照相比,鸟氨酸处理下香稻2-AP含量显著提高了14.81%~30.62%。可见,外源喷施鸟氨酸在香稻生产中具有一定的应用价值。In order to explore the effect of foliar ornithine spraying at the heading stage on the yield,quality and 2-acetyl-1-pyrroline(2-AP)biosynthesis of fragrant rice,the main fragrant rice variety Meixiangzhan 2 in Guangdong province was used as the material,and a two-year field experiment was carried out.During the heading stage,the fragrant rice plants were sprayed with different concentrations of ornithine solution.Rice quality and 2-AP synthesis characteristics were compared and analyzed.The results showed that spraying ornithine solution with a concentration of 0.4-1.6g/L could significantly increase the chlorophyll content of flag leaves during the filling stage,increase the yield of fragrant rice and the crude protein content of rice,and reduce the chalkiness and chalky grain rate.Compared with the control,the 2-AP contents of fragrant rice under the treatments of spraying ornithine were significantly increased by 14.81%-30.62%.It could be seen that exogenous ornithine has certain application value in fragrant rice production.

关 键 词：香稻 鸟氨酸 2-乙酰基-1-吡咯啉 产量 稻米品质 

分 类 号：S511[农业科学—作物学]