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在研究了杏树气孔日开张规律的基础上,进行了几种抗蒸腾剂在杏树上的作用效果的试验。结果表明:杏气孔最大开张度的出现时间为上午10:00—11:00;10~(-2)M的亚硫酸氢钠、氯化钙、醋酸、8—羟基喹啉从喷后第二天起三天内均显著抑制气孔开张;亚硫酸氢钠、氯化钙和农用矮壮素对蒸腾有明显抑制作用,可使蒸腾下降22～28％,且浓度越高,蒸腾下降越多。与对照相比,三种药剂均能显著提高叶水势。
Based on the study of the opening regularity of apricot tree stomata, the effects of several antitranspirants on almond trees were tested. The results showed that the maximum opening degree of apricot pores was 10: 00-11: 00 in the morning, and sodium bisulfite, calcium chloride, acetic acid and 8-hydroxyquinoline at 10 ~ (-2) M were sprayed from the second Stomatal opening was significantly inhibited within three days from beginning; Sodium bisulfite, calcium chloride and agrochemsticid could significantly reduce transpiration, and the transpiration decreased by 22-28%. The higher the concentration, the more the transpiration decreased. Compared with the control, all three agents can significantly improve leaf water potential.