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为了评价叶片水分状况与物候阶段对红外测定所需的最佳操作条件以及红外测定预测能力的影响,由间试验种植了7个基因型,并设置灌水和不灌水两种水分处理。红外线测定表明,在开花期(A)大田干旱时,离体新鲜旗叶;(B)供试材料生长在良好水分条件下的脱水旗叶(相对湿度为60％时25℃下脱水24h)具有良好的耐旱性预测力。此外,对80个硬粒小麦基因型(高代品系和品种)在(A)条件下进行了筛选。结果发现1940m外的近红外反射在(B)条件下可做为评价持水能力的适用方法。
In order to evaluate the effect of leaf moisture status and the optimal operating conditions for infrared measurement at the phenological stage and the predictive power of infrared measurement, seven genotypes were planted in an inter-laboratory experiment and two water treatments, irrigation and non-irrigation, were set up. Infrared measurements showed that fresh flag leaves were detached in field during the flowering (A) field drought; (B) dehydrated flag leaf (dehydration at 25 ° C for 24 h at 60% relative humidity) of the test material grown under good moisture conditions had Good drought tolerance predictive power. In addition, 80 durum wheat genotypes (high lines and varieties) were screened under (A) conditions. As a result, it was found that the near-infrared reflection at 1940 m can be used as a suitable method for evaluating the water holding capacity under (B).