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Enhancement of Ultrasonic Seed Treatment on Yield, Grain Quality Characters, and 2-Acetyl-l-Pyrroline Biosynthesis in Different Fragrant Rice Genotypes

文献类型: 外文期刊

作者: Lan, Rujian 1 ; Duan, Meiyang 1 ; Wu, Feida 1 ; Lai, Rifang 1 ; Mo, Zhaowen 1 ; Pan, Shenggang 1 ; Tang, Xiangru 1 ;

作者机构: 1.South China Agr Univ, State Key Lab Conservat & Utilizat Subtrop Agr Bi, Guangzhou 510642, Peoples R China

2.Minist Agr, Sci Observing & Expt Stn Crop Cultivat South Chin, Guangzhou 510642, Peoples R China

3.Guangzhou Key Lab Sci & Technol Aromat Rice, Guangzhou 510642, Peoples R China

关键词: Fragrant rice; yield formation; crop growth; grain quality; 2-acetyl-1-pyrroline

期刊名称:PHYTON-INTERNATIONAL JOURNAL OF EXPERIMENTAL BOTANY ( 影响因子:1.407; 五年影响因子:0.996 )

ISSN: 0031-9457

年卷期: 2022 年 91 卷 11 期

页码:

收录情况: SCI

摘要: Fragrant rice is popular for the good grain quality and special aroma. The present study conducted a field experiment to investigate the effects of ultrasonic seed treatment on grain yield, quality characters, physiological properties and aroma biosynthesis of different fragrant rice genotypes. The seeds of three fragrant rice genotypes were exposed to 1 min of ultrasonic vibration and then cultivated in paddy field. The results of present study showed that ultrasonic seed treatment increased grain yield of all fragrant rice genotypes but the responses of yield formation to ultrasonic were varied with different genotypes. Compared with control, ultrasonic seed treatment increased grain 2-acetyl-1-pyrroline (2-AP, the key component of fragrant rice aroma) content by 13.40%-44.88%. Ultrasonic seed treatment also reduced the crude protein contents in grains. The head rice rate, rice length, chalky rice rate, and chalkiness degree were influenced by ultrasonic for one or two fragrant rice genotypes. The activities of peroxidase and superoxide dismutase were also enhanced due to ultrasonic seed treatment. In conclusion, ultrasonic seed treatment increased grain, regulated grain aroma and quality, and improved stress resistance of fragrant rice varieties.

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