Study on Adaptability of Different Genotypes of Fragrant Rice Varieties in Conghua,Guangzhou
To screen suitable fragrant rice varieties for planting in Conghua District,Guangzhou,we used six fragrant rice varieties as materials to investigate the yield and grain aroma(2-AP)content of each fragrant rice variety.The results showed that the yield of Ruanhuayoujinsi was the highest,with a yield of 548 kg/hm2,but there was no significant difference to Xiangyaxiangzhan,Qingliangyou 19 xiang,and Meixiangzhan 2.Xiangyaxiangzhan had the highest 2-AP content in grains,which was not significantly different from Qingxiangyou 19 xiang,but significantly higher than other varieties.The high 2-AP content of each variety was due to the high content of precursor substances such as proline,1-pyrroline,and 1-pyrroline-5 carboxylic acid content in leaves and grains.Xiangyaxiangzhan,Qingliangyou 19 xiang,and Ruanhuayoujinsi could maintain high yields and 2-AP content in grains during planting in Conghua,which could provide good variety support for the development of the fragrant rice industry in Conghua.
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