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以 15个杂交中稻品种为材料 ,研究了发根力及根系活力与地上部性状的关系。结果表明 ,杂交中稻品种间发根力与有效穗、产量呈显著或极显著正相关 ,与着粒数呈极显著负相关 ;根系活力与结实率和产量呈极显著正相关。分蘖力强、结实率高可分别作为选育发根力和根系活力强的品种的间接选择指标
Fifteen hybrid rice cultivars were used as materials to study the relationship between rooting and root vigor and aboveground traits. The results showed that there was a significant or very significant positive correlation between the rooting force and the effective panicles and the yield of hybrid mid-rice cultivars. There was a significant negative correlation between the root vigor and the grain number. There was a significant positive correlation between root vigor and seed setting rate and yield. Strong tillering ability and high seed setting rate can be used as indirect selection indexes for selecting varieties with strong rooting ability and root vigor