Five rice genotypes (conventional indica, hybrid indica, conventional japonica, hybrid japonica and upland rice) were applied to investigate the cortical aerenchyma formation of roots under the conditions of different medium pH (4.5 and 6.5) and different N resources (ammonium and nitrate) through the paraffin section technique. Results indicated that cortical aerenchyma tended to form in roots of indica rice seedlings at low pH when NH_4~+-N was the sole N resource while in roots of japonica rice and upland rice seedlings at near neutral pH when NO_3~--N was supplied alone.
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机译：叶绿素/壳聚糖/小球藻/铁/钙/ DHA / EPA /含绿豆/黑豆/红豆/白豆室温暴露，绿豆芽/绿色寄主豆芽/大白菜/新鲜/羽衣甘蓝/马铃薯/大蒜/姜/生姜/黄瓜/南瓜/菠菜/人参/红鸭/迷你番茄/西瓜/瓜，嫩芽/马铃薯/甘薯/黄瓜/西瓜/瓜/大白菜/大蒜/生姜/普通大米，阿克巴里，大米/大米/大麦/荞麦/橡子塑料空气分配孔，把手，阳光遮蔽的盖子，水分配孔处理幼苗，处理水耕栽培容器，不良，岩石形成，固体培养基，水耕，稻田，田地，耕种
