Journal of Plant Interactions (Jan 2021)

Effect Of conservation tillage practices on aroma, yield and quality of mechanical-transplanting fragrant rice

  • Yong Ren,
  • Siren Cheng,
  • Shenggang Pan,
  • Hua Tian,
  • Meiyang Duan,
  • Shuli Wang,
  • Xiangru Tang

DOI
https://doi.org/10.1080/17429145.2021.1999511
Journal volume & issue
Vol. 16, no. 1
pp. 522 – 532

Abstract

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In our study, two popular fragrant rice cultivars (Meixiangzhan 2 and Xiangyaxiangzhan) were conducted by three treatments (CK: conventional tillage; T1: minimum tillage; T2: no-tillage) to assess the effects of conservation tillage on the aroma, yield and quality of mechanical-transplanting fragrant rice. Results depicted that the 2-acetyl-1-pyrroline (2-AP) content in mature grains of mechanical-transplanting fragrant rice remained high level under T1 and T2 treatments. 2-AP accumulation in mature grains was significant associated with the 2-AP, proline and pyrroline-5-carboxylic acid content, proline dehydrogenase and ornithine aminotransferase activity in grains and leaves during the grain-filling period. T1 and T2 treatments improved yield components, increased the photosynthetic matter accumulation, and increased yields. T1 and T2 treatments also resulted in a higher head milled rice rate and significant changes in protein content of mechanical-transplanting fragrant rice. Overall, conservation tillage practices were beneficial to increase the 2-AP content, quality and yield of mechanical-transplanting fragrant rice.

Keywords