Effects of pH and N forms on aerenchyma formation of rice roots

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NETL

外文摘要：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。

外文关键词：

aerenchymaammoniumnitratepHrice

作者：

K. Feng、X.L. Wang、J.Y. Si

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作者单位：

College of Environmental Science and Engineering, Yangzhou Unversity, Yangzhou, 225009, China

会议名称：

International Plant Nutrition Colloquium

会议地点：

Beijing

会议母体文献：

Plant Nutrition for Food Security, Human Health and Environmental Protection

页码：

526-527

出版时间：

2005