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当前位置: 首页 > 文章 > 干湿交替对滴水观音叶绿素荧光参数的影响 西南农业学报 2016,29 (1) 69-73
Position: Home > Articles > Effect of Wet-dry Alternation on Chlorophyll Fluorescence Parameters of Alocasia macrorrhiza Southwest China Journal of Agricultural Sciences 2016,29 (1) 69-73

干湿交替对滴水观音叶绿素荧光参数的影响

作  者：
朱启红;萧黎;徐东东;夏红霞;李强;王书敏
单  位：
重庆市环境材料与修复技术重点实验室重庆文理学院
关键词：
滴水观音;叶绿素荧光参数;干湿交替
摘  要：
本试验以滴水观音(Alocasia macrorrhiza)为试验材料,研究了短期干湿交替胁迫对滴水观音叶绿素荧光参数的影响。结果表明,初次短期干旱作用对供试植株叶绿素荧光参数影响不明显;但短期淹水较大,在初次淹水作用下,处理A、B植株初始荧光(F0)值较第1次干旱处理略有降低,最大荧光(Fm)、PSII原初光能转化效率(Fv/Fm)、光化学淬灭系数(q P)明显增加,尤其是处理B植株增加显著(P<0.05);处理C、D、E植株F0、Fm显著升高(P<0.05),Fv/Fm、q P、q N值显著降低(P<0.05)。实验结果还显示,第2次干旱处理后,处理A、B植株F0、Fm略有上升,Fv/Fm、q P、q N略有下降;而处理C、D、E植株F0值下降,Fm、Fv/Fm、q P、q N值增加明显,且随淹水深度增加而增加。由此说明,及时低水位复水尤其是1/4深度复水可促进滴水观音光合作用,而高水位则产生胁迫作用,抑制植株生长。因此,及时降低淹水水位可缓解淹水的胁迫作用,促进植株生长,尤其是对深水位胁迫植株作用更好。
译  名：
Effect of Wet-dry Alternation on Chlorophyll Fluorescence Parameters of Alocasia macrorrhiza
作  者：
ZHU Qi-hong;XIAO Li;XU Dong-dong;XIA Hong-xia;LI Qiang;WANG Shu-min;Chongqing Key Laboratory of Environmental Materials & Remediation Technologies,Chongqing University of Arts and Sciences;
关键词：
Alocasia macrorrhiza;;Chlorophyll fluorescence parameters;;Wet and dry alternation
摘  要：
Alocasia macrorrhiza was used to study the effect of short time wet-dry alternation on its chlorophyll fluorescence parameters. The results showed that short time drought stress did not have obvious effects on plants chlorophyll fluorescence parameters for the first time,but the effect of short time flooding stress was significance. Under the first time flooding stress,the original fluorescence( F0) values of treat A and B were lower than that of the first time drought stress. The maximum fluorescence( Fm),efficiency of primary conversion of light energy of PSⅡ( Fv/ Fm) and photochemical quenching coefficient( q P) obviously increased,especially,treat B significantly increased( P < 0.05). F0 and Fmof treat C,D and E significantly increased( P < 0. 05),and their Fv/ Fm,q P and q N significantly decreased( P < 0. 05).The results also showed that after the second drought stress,F0 and Fmof treat A and B ascended slightly,their Fv/ Fm,q P and q N descended slightly,while F0 of treat C,D and E descended,their Fm,Fv/ Fm,q P and q N obviously increased with the increasing of flooding depth. It presented that rehydration at low water level in time,especially 1 /4 drowned could improve the photosynthesis of Alocasia macrorrhiza,but high water level had stress effect and depressed the growth of plant. So,reducing flooding water level in time could relieve the stress effect and improve plant growth,which was better for deep water stressing plants.

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