LIU Fang,LI Yi-ran,LIU Yi,et al.Effect of Shading on Growth and Photosynthetic Characteristics of Cotoneaster hjelmqvistii[J].Northern Horticulture,2014,38(07):52-56.
遮荫对海姆维斯蒂栒子生长及光合特性的影响
- Title:
- Effect of Shading on Growth and Photosynthetic Characteristics of Cotoneaster hjelmqvistii
- 文章编号:
- 1001-0009（2014）07-0052-05
- Keywords:
- Cotoneaster hjelmqvistii; shading treatment; leaf area; photosynthetic characteristics; chlorophyll content
- 分类号:
- S 615
- 文献标志码:
- A
- 摘要:
- 以1年生海姆维斯蒂栒子组培苗为试材，研究了遮荫处理对海姆维斯蒂栒子叶片面积、叶绿素含量、光合速率、胞间二氧化碳浓度等生长及光合特性的影响，以探讨其耐荫能力。结果表明：遮荫处理后的叶片面积极显著高于全光照条件下的叶片面积，且随遮荫程度的增加叶片面积显著增加，3层遮阳网处理下（透光率8%）的叶片面积最大；全光照处理的叶片厚度极显著高于2层遮阳网（透光率17%）和3层遮阳网处理，与1层（透光率46%）遮荫处理差异不显著；遮荫处理下的叶绿素含量极显著高于全光照处理，而全光照处理下的叶绿素a/b的比值显著高于1层遮阳网处理，极显著高于2、3层遮阳网处理。全光照条件下的净光合速率极显著高于遮荫处理，在遮荫处理中，随着遮荫程度增加，净光合速率明显减小；气孔导度逐渐降低，全光照条件下的气孔导度高于1、2层遮荫处理，但差异不显著，3层遮荫处理的气孔导度极显著低于全光照处理；胞间二氧化碳浓度逐渐增加，2、3层遮荫处理显著高于全光照和1层遮荫处理，1层遮荫处理高于全光照处理。综合各项指标及田间观察认为，海姆维斯蒂栒子喜光，但具有一定的耐荫能力，在光照强度22.864 klx、透光率46%的环境下可以正常生长。
- Abstract:
- Using one-year-old tissue cultured plants of Cotoneaster hjelmqvistii as test material,effect of shading treatment on leaf area,chlorophyll content,photosynthetic-rate and intercellular CO2 concentration were studied to understand the shade-tolerance of C.hjelmqvistii.The results showed that the leaf area covered with shade net was very significantly larger than that under full sunlight condition and trended to increase significantly with the increase of shading degree and presented the largest leaf area under three layers of shade nets (8% of light transmission rate).The leaf thickness under full sunlight conditions was very significantly thicker than that covered with two (17% of light transmission rate) and three layers of shade nets,but had no significantly difference with that covered with one layer of shade net (46% of light transmission rate).Chlorophyll content under shading conditions was significantly higher than that in full sunlight condition in which ratio of chlorophyll a/b was significantly higher than that covered with one layer of shade net and was very significantly higher than that with two layers of shade nets or with three layer covers.Photosynthetic rate under full sunlight condition was significantly higher than that with shading conditions.Under the shade conditions,photosynthetic rate and stomatal conductance was significantly reduced while intercellular CO2 concentration increased significantly with increasing degree of shading.Taking the tested indicators and field observation into account, C.hjelmqvistii could be considered as a heliophile,and had shade-tolerance in a certain degree and could grow normaly in 22.864 klx of light intensity and 46% of light transmission rate.
参考文献/References:
[1]骆建霞,王小艺,倪正欢,等.海姆维斯蒂栒子和亮叶忍冬耐盐性差异比较[J].园艺学报,2009,36(增刊):2072. [2]李艳萍.青海省栒子属观赏植物引种栽培试验[J].河北林果研究,2002,17(2):137-140. [3]赖凤妍,董丽娟,国怡然,等.海姆维斯蒂栒子嫩枝扦插繁殖的研究[J].天津农业科学,2008,14(1):29-32. [4]郝峰鸽,杨立峰,任军辉.不同光照条件对紫叶小檗光合特性及色素含量的影响[J].安徽农业科学,2006,34(7):1351-1352. [5]李金鹏,赵和祥,董然,等.光照强度对两种彩叶玉簪生长及光合特性的影响[J].南京林业大学学报(自然科学版),2012,36(4):57-61. [6]刘宗华,袁小环,崔敏,等.遮荫对狼尾草光合特征的影响[J].安徽农业科学,2009,37(10):4476-4478,4481. [7]许正刚,史正军,谢良生,等.遮荫处理下两种园林植物叶绿素含量及荧光参数的研究[J].甘肃科技,2009,25(3):79,158-160. [8]包玉,王志泰.不同遮荫处理大叶黄杨叶片生理响应[J].安徽农业科学,2009,37(12):5470-5471. [9]施爱萍,张金政,张启翔,等.不同遮荫水平下4个玉簪品种的生长性状分析[J].植物研究,2004,24(4):486-490. [10]金鑫,胡万良,丁国泉.遮荫对刺五加生长及生理特性的影响[J].学术园地,2013(2):11-14. [11]Pires M V,Almeida A F.Photosynthetic characteristics of ornamental passion flowers grown under different light intensities[J].Photosynthetica,2011,49(4):593-602. [12]丁松爽,孙坤.栒子属植物叶表皮微型态特征及其分类学意义[J].植物研究,2008,28(2):187-194. [13]周丽华,吴征镒.小叶栒子的分类研究[J].云南植物研究,2001,23(2):162-168. [14]骆建霞,申屠雅瑾,张津华,等.盐胁迫对海姆维斯蒂栒子生长及丙二醛和脯氨酸含量的影响[J].天津农学院学报,2008,15(4):8-11. [15]骆建霞,马莉,柴慈江,等.干旱胁迫对海姆维斯蒂栒子的生长及丙二醛和脯氨酸含量的影响[J].天津农业科学,2009,15(1):1-4. [16]陈启洁.紫花地丁的开发利用与栽培技术研究[J].国土与自然资源,2004(1):95-96. [17]赵友华.不同光环境下大头茶幼苗蒸腾强度和生物量的变化[J].福建农业大学学报,1996,25(1):109-113. [18]张智顺,张庆费,夏檑,等.遮荫对几种绿化植物光合特性和生长的影响[J].东北林业大学学报,2010,38(3):47-49,72. [19]张斌斌,姜卫兵,翁忙玲,等.遮荫对园艺园林树种光合特性的影响[J].经济林研究,2009,27(3):115-119.
相似文献/References:
[1]郭娟,邱帅,魏建芬,等.四种园林植物对遮荫的生理响应及耐荫性评价[J].北方园艺,2020,44(06):76.[doi:10.11937/bfyy.20191743]
GUO Juan,QIU Shuai,WEI Jianfen,et al.Physiological Response to Shade and Shade-tolerant Capability of Four Species of Ornamental Plants[J].Northern Horticulture,2020,44(07):76.[doi:10.11937/bfyy.20191743]
备注/Memo
第一作者简介：刘芳（1973-），女，本科，农艺师，现主要从事园艺研究与技术推广等工作。E-mail：dahai731017@sina.com.