遮阴对美人蕉光合作用的影响
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摘要
笔者以当年生美人蕉为试材,设置了0%(对照),35%,55%,75%4个遮阴处理,进行随机区组试验,3次重复,研究了不同遮阴条件下美人蕉光合作用的变化规律,以期为园林景观中合理栽培和应用美人蕉提供理论依据。结果表明:对照与35%遮阴处理的美人蕉净光合速率表现为双峰曲线变化规律,除12:00之外,其余时间35%遮阴处理与对照之间无显著差异;12:00~16:00之间的蒸腾速率,35%遮阴处理高于对照;35%遮阴处理的气孔导度表现出一直降低的变化规律,8:00~16:00之间均高于对照,其它处理的气孔导度表现为双峰曲线的变化规律;对照胞间CO2浓度始终处于最低值,3个遮阴处理均高于对照。综合分析认为,美人蕉在遮阴35%环境下不会对植株光合作用产生显著影响。
The test studied changes of Canna indica L. photosynthesis under the condition of different shade to provide the theory basis for Canna indica L. reasonable cultivation and application in landscape. One-years old Canna indica L. as materials,which set 4 treatment,the proportion of shade as 0%( CK),35%,55%,75%,randomized block design of experiment,repeating 3 times. The results showed that the net photosynthetic rate showed the hyperbola change which in control and 35% shade treatment,35% shade treatment had no significant difference with control except 12: 00; 35% shading treatment transpiration rate was higher than control when in 12: 00 ~ 16: 00; 35% shading treatment's stomatal conductance showed reduced by the change and it was higher than control when in 8: 00 ~ 16: 00; other treatment performance for the Shuangfeng curve; the control intercellular CO2 concentration always at a minimum,3 shading treatments were higher than the control. Comprehensive analysis showed that would not have a significant impact on plant photosynthesis of 35% shade environment on Canna indica L.
The test studied changes of Canna indica L. photosynthesis under the condition of different shade to provide the theory basis for Canna indica L. reasonable cultivation and application in landscape. One-years old Canna indica L. as materials,which set 4 treatment,the proportion of shade as 0%( CK),35%,55%,75%,randomized block design of experiment,repeating 3 times. The results showed that the net photosynthetic rate showed the hyperbola change which in control and 35% shade treatment,35% shade treatment had no significant difference with control except 12: 00; 35% shading treatment transpiration rate was higher than control when in 12: 00 ~ 16: 00; 35% shading treatment's stomatal conductance showed reduced by the change and it was higher than control when in 8: 00 ~ 16: 00; other treatment performance for the Shuangfeng curve; the control intercellular CO2 concentration always at a minimum,3 shading treatments were higher than the control. Comprehensive analysis showed that would not have a significant impact on plant photosynthesis of 35% shade environment on Canna indica L.
引文
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[7]杨晴,李婧实,郭艾英,等.遮阴和藜竞争对黄顶菊光合荧光和生长特性的影响[J].应用生态学报,2014,25(9):2 536-2 542.
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[11]王岚,张宇斌,李建新,等.遮阴对七叶一枝花光合和生理特性的影响[J].北方园艺,2015(8):73-77.
[12]马靖,伍燕华,付绍兵,等.遮阴对栽培川贝母光合特性的影响[J].贵州农业科学,2014,42(10):69-73.
[2]王怡霖,姚延梼.遮阴处理对美人蕉生长的影响[J].山西林业科技,2012(4):37-39.
[3]景黎霞,刘竹云,毛银亮.美人蕉常见病害防治技术[J].农业科技与信息,2015(8):19-20.
[4]童方平,宋庆安,龙应忠,等.不同地理种源翅荚木苗期光合特征的日变异规律[J].中南林业科技大学学报,2007(4):1-7.
[5]狄晓艳,池喜梅,陈建文,等.5个油松种源光合特性的比较研究[J].植物研究,2012,32(2):165-170.
[6]韩忠明,胥苗苗,杨利民,等.防风夏季光合作用日变化及其与影响因子的关系[J].西南农业学报,2014,27(5):1 903-1 906.
[7]杨晴,李婧实,郭艾英,等.遮阴和藜竞争对黄顶菊光合荧光和生长特性的影响[J].应用生态学报,2014,25(9):2 536-2 542.
[8]王晓冬,贺国强,赵利群,等.遮阴对树莓光合特性和果实性状的影响[J].植物研究,2014,34(5):599-603.
[9]范苏鲁,苑兆和,冯立娟,等.水分胁迫对大丽花光合作用、蒸腾和气孔导度的影响[J].中国农学通报,2011,27(8):119-122.
[10]周琳耀,莫伟平,张静逸,等.遮阴对荔枝光合特征及矿质营养积累的影响[J].果树学报,2014,31(2):270-275.
[11]王岚,张宇斌,李建新,等.遮阴对七叶一枝花光合和生理特性的影响[J].北方园艺,2015(8):73-77.
[12]马靖,伍燕华,付绍兵,等.遮阴对栽培川贝母光合特性的影响[J].贵州农业科学,2014,42(10):69-73.