H.A.马克西莫夫的许多著作里,阐述了植物抗旱性的生理本性的问题。他所确定的理论是:乾旱对植物的主要作用是破壤了植物细胞原生質的膠髓化学性和渗透性;因此,植物生长过程被抑制。这在许多著作中都可找到证据,并获得进一步的发展(1一4)。本文是就H.A.马克西莫夫所阐明的理论作进一步的发挥,是想说明植物髓内自由水和束缚水的比例舆植物抗旱性的关系的问题。研究方法将植物分别栽在培养室盆中和田间条件下。盆 Many of H.A. Maximov’s writings address the issue of the physiological nature of plant drought resistance. His theory is that the main effect of drought on plants is to break down the chemical and permeability of the marrow of plant cell protoplasts; therefore, plant growth is inhibited. This can be found in many books and for further development (1: 4). This article is a further development of the theory elucidated by H.A. Maximov and is intended to illustrate the relationship between the ratio of free and bound intramedullary internodes in plant drought resistance. Methods The plants were planted in pots and in field conditions. Pots