水稻植株甲烷传输能力与根系特性的相关性分析

Correlation Analysis of Methane Transport Capacity and Root Characteristics in Rice

为了探明影响水稻植株甲烷传输的关键根系特性,以推广面积较大的水稻品种为研究对象,在水培条件下研究不同品种水稻根系指标与甲烷传输能力的相关性。结果表明,与早稻甲烷传输能力呈极显著、显著正相关关系的根系指标分别是根系比表面积、根系活跃吸收面积,即早稻甲烷传输能力与水稻根系活力有显著正相关关系;与早稻甲烷传输能力呈极显著、显著负相关关系的根系指标分别是根重、最长根长。因此,根系活力较低、根重较大的早稻品种植株可能具有较弱的甲烷传输能力。

In order to investigate the key root characteristics affecting rice plant methane transport, the rice root parameters of different rice cultivars were studied in relation to the methane transport capacity under the condition of hydroponic conditions. The results showed that there were significant positive correlations between the root specific surface area, root active absorption area and the methane transport capacity in early rice. There was a significant positive correlation between early rice root vitality and methane transport capacity. The root index which had negative correlation with methane transport capacity included root weight, the longest root length. Therefore, early rice plants with low root vigor and relatively high root weight may have weak methane transport capacity.