不同盐度对冰菜生长和色素积累的影响

Effects of Different Salinity on the Growth and Pigment Accumulation of Ice Plants

为加快新型耐盐蔬菜的利用,以盆栽冰菜为试材,测定其在不同盐度下的形态指标、生物量和色素含量。结果表明:6‰~12‰.盐度下冰菜叶片数、叶片大小、株高和根长分别比对照大25%、52.8%、75.7%、21.7%和23.6%;茎叶干重和鲜重分别是对照的2.35倍和4.03倍;花青素含量是对照的3.56倍。说明一定盐度能够促进冰菜生长,主要表现为植株长高、分枝增多、叶片增多变大,根系伸长,茎叶生物量和花青素积累,但对根系生物量和叶绿素积累具有抑制作用。6‰~12‰是其生长的最适盐度,大于30%。的高盐浓度则引起胁迫效应。

In order to speed up the utilization of new salt-tolerant vegetables, potted ice plants were used to study the morphological characters, biomass, and pigment contents with different salinities. The results showed that the number of leaves, leaf size, plant height, and root length of ice plants were 25%, 52.8%, 75.7%, 21.7% and 23.6%, higher than that of the control, respectively;the dry weights and fresh weights of stems and leaves were 2.35 and 4.03 times of that of the control;the anthocyanin content was 3.56 times of that of the control. It indicated that suitable salinity promoted the growth of ice plants, focused on plant height, increased branching, leaf size, root elongation, stem and leaf biomass and anthocyanin accumulation, but inhibited root biomass and chlorophyll accumulation. The optimum salinity was 6‰-12‰, and a high salinity greater than 30‰ caused a stress effect.