以救荒野豌豆为材料,研究其对邻体根的响应机制以及根之间的识别方式.结果表明:邻体根存在时,叶、茎、冠、根生物量,根冠比和花数量均没有变化,而繁殖生物量明显增加,表明根的生长与繁殖不存在权衡,也表明救荒野豌豆能够检测到邻体根的存在并做出响应;根之间的识别方式既有直接接触,也有间接的化感作用.
Pot experiments were conducted withVicia sativa to find the mechanism and ways of recognition responding to the presence of its neighbors’ roots.The results are that no changes occurred in its leaf biomass,stem biomass,shoot biomass,root biomass,root-shoot ratio and the number of flowers compared with plants grown without their neighbors’ roots,but there was an overproduced reproduction biomass when the neighbors’ roots were present,which showed that there was no tradeoff between root growth and reproductive growth,and that plants could recognize and respond to their neighbors’ roots in Vicia sativa;the ways of recognition included both direct physical contact and indirect allelopathy.