不同育秧方式对机插香稻秧苗素质及生理特性的影响

育秧是机插香稻生产中重要的一个环节。为探究不同育秧方式对机插香稻秧苗素质以及生理特性的影响,选用香稻品种美香占2号和象牙香占为材料,采用2种育秧盘（钵苗盘和硬秧盘）、2种育秧基质（稻田土和水稻育苗基质）、壮秧剂处理（以无壮秧剂为对照）搭配组合进行试验。结果表明,壮秧剂处理和育苗基质育秧显著提高了香稻秧苗素质及抗性酶活性。本试验中,最优的育秧方式为基质硬秧盘壮秧剂育秧和基质钵苗盘壮秧剂育秧,这2个处理下秧苗的单株生物量最大,抗性酶活性最高。

Effects of Different Seedling Raising Methods on Seedling Quality and Physiological Characteristics of Machine-Transplanted Aromatic Rice

Raising seedlings is an important part in the production of machine-transplanted aromatic rice. In order to explore the effects of different seedling raising methods on the quality and physiological characteristics of machine- transplanted aromatic rice seedlings, two varieties of fragrant rice (Meixiangzhan 2 and Xiangyaxiangzhan) were selected. In this study two types of seedling-raising trays (bowl seedling tray and hard seedling tray), two kinds of seedling-raising substrate (rice paddy soil and rice seedling matrix), two kinds of seedling-strengthening agents (application of seedling-strengthening agent and non seedling-strengthening agent) were tested in combination. The results showed that the seedling quality and resistance enzyme activity of the fragrant rice seedlings were significantly improved by the application of seedling-strengthening agent and using rice seedling-raising medium. In this experiment, the optimal breeding method is MHT (combination of rice seedling matrix, hard seedling tray and application of seedling-strengthening agent) and MBT (combination of rice seedling matrix, bowl seedling tray and application of seedling-strengthening agent) because these two treatments have the largest biomass per plant and the highest resistance enzyme activity.