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该试验选用3个粳稻品种用110 mg/L的多效唑溶液浸种48 h后直播栽培,以清水浸种处理作为对照。通过测量水稻成熟期各器官干重和农艺性状的数据分析表明,多效唑浸种处理对水稻各器官干重的相关性影响小,但品种间存在显著差异。水稻第一、二节长与实粒重的相关性由0.024和0.056变成多效唑浸种处理后的-0.116和-0.042。多效唑降低了茎鞘重对实粒重的影响比重,最终导致水稻成熟期的光合积累无法得到有效转运。
In this experiment, three japonica rice varieties were inoculated with 110 mg / L paclobutrazol solution for 48 h and then directly sowed. The data analysis of dry weight and agronomic traits in different organs of rice showed that the treatment of paclobutrazol had little effect on the correlation of dry weight of various organs of rice, but there were significant differences among the cultivars. The correlation between the first and the second length of rice and the true grain weight changed from 0.024 and 0.056 to -0.116 and -0.042 after soaking seeds with paclobutrazol. Paclobutrazol reduced the impact of stem-sheath weight on grain weight, and ultimately led to the failure of photosynthetic accumulation during rice ripening to be efficiently transported.