气温对兰州百合鳞茎粗淀粉累积含量的影响

Effect of Air Temperature on the Accumulation of Crude Starch in Lanzhou Lily

以不同种植区生长的1~3年生兰州百合为供试材料,采用生长分析方法对不同生长时期地下鳞茎的营养物质进行检测,记录种植区气温变化数据。结果显示,10月9日永靖关山乡、渭源田家河乡、临洮玉井镇3个种植区1~3年生兰州百合鳞茎粗淀粉含量相比较,差异均达极显著水平(P <1%)。粗淀粉含量从高到低均为临洮玉井镇、永靖关山乡、渭源田家河乡。不同种植区的气温对1~3年生兰州百合生长后期鳞茎粗淀粉含量影响不同。3年生兰州百合生长后期,渭源田家河乡百合鳞茎粗淀粉含量与平均最高气温、平均最低气温和平均温差显著正相关;临洮玉井镇百合鳞茎粗淀粉含量与平均最高气温极显著负相关,与平均温差显著负相关。其余种植区与各气温因子相关性不显著。不同种植区的兰州百合生长后期鳞茎膨大生长速度和粗淀粉累积不同,品质差异明显。

Taking 1-3-year-old Lanzhou lily growing in different planting areas as test materials,the nutrients of underground bulbs in different growth periods were detected by growth analysis method,and the temperature change data in the planting area were recorded. The results showed that there were significant differences(P < 1%)in the crude starch content of bulb of 1-3-year-old Lanzhou lily in Guanshantownship,Yongjing county,Tianjiahe township,Weiyuan county,and Yujing town,Lintaocountyon October 9. The content of crude starch in lilium from high to low were Lintao,Yongjing and Weiyuancounty,respectively. The effect of temperature on the crude starch content in bulb of 1-3-year-old Lanzhou lilyat late growth stage was different in different planting areas. Atthe later growth stage of 3-year-old Lanzhou lily,the content of crude starch in WeiYuan was positively correlated with the average maximum temperature,average minimum temperature,and average temperature difference.The content of crude starch of bulb in LinTaowas significantly negatively correlated with average maximum temperature and average temperature difference. There was no significant correlation between other planting areas and temperature factors. The bulb growth rate and starch accumulation of Lanzhou lily in different planting areas were different,and the quality of lilium varied obviously.