多效唑浸种对杂交晚稻秧苗有明显的控制徒长效应。对种子发芽并无不良影响。在本试验浓度(5～100ppm)和浸种时间(6～24h)范围内,浓度越高,处理时间越长,控长效应越明显、并随着秧龄的增长而提高。方差分析表明,多效唑对秧苗的控长效应...多效唑浸种对杂交晚稻秧苗有明显的控制徒长效应。对种子发芽并无不良影响。在本试验浓度(5～100ppm)和浸种时间(6～24h)范围内,浓度越高,处理时间越长,控长效应越明显、并随着秧龄的增长而提高。方差分析表明,多效唑对秧苗的控长效应在各处理浓度和时间之间的差异均达极显著水平。经多重比较(SSR 法)结果表明,除少数低浓度短时间处理外,其他各处理组的15天幼苗均显著或极显著矮于对照。随着多效唑处理浓度的增加、苗体内过氧化物酶活性有所提高,同工酶谱及扫描图也有量和质的变化,并在 AI 区发现了新的酶带,证实了过氧化物酶与株高有密切的关系。多效唑的控长效应还表现有基因型的差异。本文对最适处理浓度和时间组合的选择进行了讨论。展开更多
Materials and methods Tomato ‘Zheza 7’ seedlings grown in pots containingcarbonized rice hull were transplanted to plasticbaskets, each of which contained 4 L of arenaceousquartz and were partly soaked in completenu...Materials and methods Tomato ‘Zheza 7’ seedlings grown in pots containingcarbonized rice hull were transplanted to plasticbaskets, each of which contained 4 L of arenaceousquartz and were partly soaked in completenutrition solution in plastic buckets, when the budsof the first truss were just visible. Two seedlings wereplanted in every basket. Their fruits and leaves weresampled on the 20th day after the first展开更多
文摘多效唑浸种对杂交晚稻秧苗有明显的控制徒长效应。对种子发芽并无不良影响。在本试验浓度(5～100ppm)和浸种时间(6～24h)范围内,浓度越高,处理时间越长,控长效应越明显、并随着秧龄的增长而提高。方差分析表明,多效唑对秧苗的控长效应在各处理浓度和时间之间的差异均达极显著水平。经多重比较(SSR 法)结果表明,除少数低浓度短时间处理外,其他各处理组的15天幼苗均显著或极显著矮于对照。随着多效唑处理浓度的增加、苗体内过氧化物酶活性有所提高,同工酶谱及扫描图也有量和质的变化,并在 AI 区发现了新的酶带,证实了过氧化物酶与株高有密切的关系。多效唑的控长效应还表现有基因型的差异。本文对最适处理浓度和时间组合的选择进行了讨论。
文摘Materials and methods Tomato ‘Zheza 7’ seedlings grown in pots containingcarbonized rice hull were transplanted to plasticbaskets, each of which contained 4 L of arenaceousquartz and were partly soaked in completenutrition solution in plastic buckets, when the budsof the first truss were just visible. Two seedlings wereplanted in every basket. Their fruits and leaves weresampled on the 20th day after the first
