摘要： 以苏麦6号为材料,在江苏3个不同纬度点(31.3°N~33.4°N),设置了7个播期,利用快速粘度分析仪(RVA)分析了纬度和播期对籽粒淀粉糊化特性的影响。结果表明:纬度和播期对小麦淀粉糊化特性均有显著或极显著的影响,且纬度的影响比播期的影响大;随纬度的升高,峰值粘度和稀懈值均呈增加的趋势,其他指标值变化不一;随播期的推迟,峰值粘度、低谷粘度、稀懈值、最终粘度和回复值均呈显著或极显著的增加趋势;不同纬度的小麦RVA特征值在播期间的变化强度不一。

关键词: 小麦, 播期, 纬度, 淀粉糊化特性

Abstract: By using Sumai6 as material,at three different latitude zones in Jiangsu(the latitudes ranges from 31.3°Nto 33.4°N), set up seven sowing date treatments,the effects of latitudes and sowing date on the starch viscosity characteristicswere studied using fast viscosity analyzer(RVA).The results indicated that :Latitude and sowing date had remarkableeffect on the starch viscosity characteristics,the effect of latitude was larger than the effect of sowing date ;With increasingof the latitude,peak viscosity and breakdown increased,the others were different ;With the delay of sowing dates ,peak viscosity,hot viscosity,breakdown,cool viscosity and setback were increased ;The starch viscosity characteristics ofdifferent latitude were different in sowing dates.

Key words: Wheat, Sowingdate, Latitude, Thestarchviscositycharacteristics

中图分类号: 

• S512.01