|Table of Contents|

Effects of Light Intensity and Nutrient Solution Concentration on Photosynthesis and Chlorophyll Fluorescence Parameters of Hydroponic Lettuce

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2018年11
Page:
15-21
Research Field:
Publishing date:

Info

Title:
Effects of Light Intensity and Nutrient Solution Concentration on Photosynthesis and Chlorophyll Fluorescence Parameters of Hydroponic Lettuce
Author(s):
FANG Shuling; HU Xiaotao; RAN Hui; YANG Xin; LIU Jie
(Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas,Ministry of Education,Northwest A & F University,Yangling,Shaanxi 712100)
Keywords:
hydroponic lettuce; light intensity; nutrient solution concentration; photosynthesis; chlorophyll fluorescence parameters
PACS:
-
DOI:
10.11937/bfyy.20173408
Abstract:
In order to study the effects of light intensity and nutrient solution concentration on photosynthesis and chlorophyll fluorescence parameters of hydroponic lettuce (Lactuck sativa L.var.ramosa Hort.),to reveal the formation mechanism of yield,hydroponic plant factory test,three gradients of nutrient solution concentration (0.8 times (A1),1.0 times(A2),1.2 times(A3)) and light intensity (150 (B1),200 (B2),250 (B3),300 (B4) μmol?m-2?s-1) were set,photosynthesis and chlorophyll fluorescence parameters were measured to study the effects of different nutrient solution concentration and light intensities on photosynthesis and chlorophyll fluorescence parameters.The results showed that,when the concentration of nutrient solution was constant,the chlorophyll content,leaf net photosynthetic rate (Pn),stomatal conductance (Gs),transpiration rate (Tr),the maximal PSⅡ light energy transformation efficiency (Fv/Fm) and chemical quenching coefficient,yield all increased and non-photochemical quenching coefficient (qN) decreased with the increase of light intensity；when the light intensity was 300 μmol?m-2?s-1,the chlorophyll content,Pn,Fv/Fm and yield decreased and the heat dissipation increased.The highest chlorophyll content,Pn,Fv/Fm and qP was A2B3,as well as the lowest qN.Comprehensive consideration,A2B3 treatment was the best combination of hydroponic lettuce.

References:

 

[1]张乃明.设施农业理论与实践[M].北京:化学工业出版社,2006:39.

[2]刘士哲.现代使用无土栽培技术[M].北京:中国农业出版社,2001:18-20.

[3]李登超.硒对菠菜、小白菜生长、养分吸收及抗氧化酶活性的影响[D].杭州:浙江大学,2002.

[4]陈永滨.闽楠光合和叶绿素荧光特性研究[D].福州:福建农林大学,2015.

[5]蒋华伟,罗红雨,李静会,等.不同光照对2种观赏连翘光合及叶绿素荧光参数的影响[J].江苏农业科学,2015(11):246-249.

[6]陈书秀,梁英.光照强度对雨生红球藻叶绿素荧光特性及虾青素含量的影响[J].南方水产,2009(1):1-8.

[7]胡永志,孙世荣,蒋水元,等.不同光照强度对幼龄期两面针光合特性及叶绿素含量的影响[J].北方园艺,2009(7):79-81.

[8]李晓红,夏雪梅.光照强度对苣荬菜光合特性和品质的影响[J].辽东学院学报(自然科学版),2016(3):173-176.

[9]周黎君,史红专,郭巧生,等.光照强度对夏枯草幼苗生长及光合特性的影响[J].中国中药杂志,2011(13):1693-1696.

[10]郭世荣.无土栽培学[M].北京:中国农业出版社,2011.

[11]陈根云,陈娟,许大全.关于净光合速率和胞间CO2浓度关系的思考[J].植物生理学通讯,2010,46(1):64-66.

[12]李银坤,武雪萍,吴会军,等.水氮条件对温室黄瓜光合日变化及产量的影响[J].农业工程学报,2010(S1):122-129.

[13]张永平,张英华,王志敏.不同供水条件下冬小麦叶与非叶绿色器官光合日变化特征[J].生态学报,2011(5):1312-1322.

[14]肖华贵.甘蓝型油菜黄化突变体的光合特性及叶绿素荧光参数分析[J].作物学报,2013,39(3):5205-5229.

[15]FARQUHAR G D,SHARKEY T D.Stomatal conductance and photosynthesis[J].Annual Review of Plant Physiology,1982,33：317-345.

[16]MARCELIS L F M,HEUVELINK E,GOUDRIAAN J.Modeling biomass production and yield of horticultural crops：A review[J].Scientia Horticulturae,1998,74：83-111.

[17]LAUTER F R.Root specific expression of the Le Rse-1 gene in tomato is induced by exposure of the shoot to light[J].Mol Gen Genet,1996,252(6):751-754.

[18]倪纪恒,毛罕平,马万征.不同营养液浓度对温室黄瓜叶片光合特性的影响[J].农业工程学报,2011(10):277-281.

Memo

Memo:
-
Last Update: 2018-06-26