牡丹花期花瓣生理活动的初步探讨

研究了牡丹开花过程中花瓣组织含水量、花青素含量、呼吸速率、O2^-的产生速率、MDA含量、相对电导率等生理指标的变化。结果表明，在牡丹整个花期，上述前5项生理指标均出现两次峰值，组织含水量和呼吸速率的峰值在第1天和第2天；花青素的峰值在第2天和第4天；O2^-的峰值在第1天和第4天；MDA的峰值在第2天和第5天；相对电导率呈持续上升趋势。

STUDY ON PHYSIOLOGICAL CHANGES IN FLOWERING OF PETAL OF TREE PEONY

Physiological and biochemical changes about Paeonia suffruticosa's petal in blossom were investigated. It showed that there were two peak values in the changing of the contents of water, anthocyanin, O_2~-, the contents of MDA, the respiratory ratio. The peaks of the water's content and the respiratory ratio emerged in the first day and the third day; the anthocyanin's content, the second day and the fourth day the productivity of O_2~-, the first day and the fourth day; MDA's content, the second day and the fifth day. The relative electric conductivity increased still in the blossom.