【摘要】 本文报道了对4个杂交组合稻株的根系形态、根重量和体积、根蛋白质含量和呼吸强度所做的研究。结果表明,4个组合的根系生长量(根系重量和体积),杂种均具有超亲优势;抽穗—灌浆期根蛋白质含量和呼吸强度出现一个峰值;杂种根系在长度、直径、侧根及表层根发生上兼有双亲特征;杂种根呼吸强度不具有超亲优势。更多还原

【Abstract】 This experiment concerns with the studies of the roots morphology,weight,volume,protein content and respiration intensity of fourhybrid rice combinations.The results of the experiment are as follows:1.The root amount of four hybrids is larger than that of theirparents.2.The protein content and respiration intensity of the roots atheading—filling stage show peak values.3.The roots of hybrids have some characters from their maie andfemale parents in length,diameter、developing of lateral and top layerroots.4.There is no transgressive heterosis in the respiration intensityof the hybrid roots.更多还原