遮光处理对文心兰生长发育和生理指标的影响
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摘要
以文心兰切花品种‘金辉’为试材,研究了在遮光率分别为60%、70%、80%、90%条件下其生长发育和生理指标的变化情况,分析了切花文心兰生长发育和生理指标与光照条件的关系,以期为筛选适宜光照条件提供参考。结果表明:持续60%遮光率显著降低花序梗长,且在夏季强光照时叶绿素含量显著降低,相对电导率显著上升;持续90%遮光率显著降低茎叶中可溶性糖、还原糖含量,同时假鳞茎长、假鳞茎茎围、开花率、花序长、分叉数及花朵数也显著降低;持续70%遮光率不仅开花率、花序长、分叉数及花朵数最高,且在夏季强光照时可溶性糖、还原糖的累积量最高,利于文心兰切花栽培。
A cut flower cultivar of Oncidium ‘Jinhui'was used as material.The growth development and physiological characteristics of‘Jinhui'were studied under the shading rates of 60%,70%,80%and 90%,respectively.The relationship between the growth development and physiological characteristics of cut flower Oncidium and the light conditions was analyzed in order to provide reference for screening appropriate light conditions.The results showed that under persistent 60% shading rate condition,the length of peduncle significantly was reduced.And strong light result in significant decrease of the chlorophyll content in the summer,while the relative electrical conductivity increased significantly.Under persistent 90% shading rate condition,the contents of soluble sugar and reduced sugar in stems and leaves decreased significantly,and the circumference of pseudobulb,flowering rate,inflorescence length,fork number and number of flowers also evidently decreased.The persistence of 70% shading rate resulted in the highest flowering rate,inflorescence length,branching number and number of flowers,and strong light in summer led to the highest accumulation of soluble sugar and reducing sugar,which was conducive to the cultivation of cut flowers.
A cut flower cultivar of Oncidium ‘Jinhui'was used as material.The growth development and physiological characteristics of‘Jinhui'were studied under the shading rates of 60%,70%,80%and 90%,respectively.The relationship between the growth development and physiological characteristics of cut flower Oncidium and the light conditions was analyzed in order to provide reference for screening appropriate light conditions.The results showed that under persistent 60% shading rate condition,the length of peduncle significantly was reduced.And strong light result in significant decrease of the chlorophyll content in the summer,while the relative electrical conductivity increased significantly.Under persistent 90% shading rate condition,the contents of soluble sugar and reduced sugar in stems and leaves decreased significantly,and the circumference of pseudobulb,flowering rate,inflorescence length,fork number and number of flowers also evidently decreased.The persistence of 70% shading rate resulted in the highest flowering rate,inflorescence length,branching number and number of flowers,and strong light in summer led to the highest accumulation of soluble sugar and reducing sugar,which was conducive to the cultivation of cut flowers.
引文
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[2]柯海丽,龙建勇,黎维诗,等.不同的遮光率对文心兰切花生长及品质的影响[J].热带生物学报,2011,2(3):264-266.
[3]徐怀恩.氮源肥料及花梗修剪对文心兰开花之影响[D].台中:台湾中兴大学,1997.
[4]李孟惠.温度、光度及肥料浓度对文心兰花序发育之影响[D].台北:台湾大学,1998.
[5]蔡佩芬.温度、光照、栽培基质对文心兰苗生育之影响[D].台北:台湾大学,2000.
[6]王学奎.植物生理生化实验原理和技术[M].2版.北京:高等教育出版社,2006.
[7]蔡永萍.植物生理学实验指导[M].北京:中国农业大学出版社,2014.
[8]史树德,孙亚卿,魏磊.植物生理学实验指导[M].北京:中国林业出版社,2011.
[9]宋晓蕾,杨红玉,曾黎琼,等.植物遮荫效应的研究进展[J].北方园艺,2009(5):129-133.
[10]吴艳艳,黄俊波,张海岚.植物对遮荫响应的研究进展[J].南方农业,2014,8(21):159-161.
[11]雷燕,李庆卫,李文广,等.2个地被菊品种对不同遮光处理的生理适应性[J].浙江农林大学学报,2015,32(5):708-715.
[12]陈菊艳,杨远庆.遮光对野扇花生长特性和生理指标的影响[J].西北植物学报,2010,30(8):1664-1652.
[13]王丽娟,顾青海,孙世海,等.遮光对番茄生理特性的影响[J].天津农学院学报,2006,13(3):17-22.
[14]张斌斌,姜卫兵,翁忙玲,等.遮荫对红叶桃叶片光合生理的影响[J].园艺学报,2010,37(8):1287-1294.
[15]杨生保,帕提古丽,王柏柯,等.光照对加工番茄穴盘苗植株形态及生理的影响[J].新疆农业科学,2011,48(9):1617-1623.
[16]周志凯,任旭琴,沙颖.叶面施肥和遮光对孔雀草生理特性的影响[J].湖北农业科学,2011,50(10):2041-2043.
[17]罗远华,王振波,黄敏玲,等.高温胁迫对文心兰顶叶若干生理指标的影响[J].福建农业学报,2017,32(6):625-629.
[18]陈爱葵,韩瑞宏,李东洋,等.植物叶片相对电导率测定方法比较研究[J].广东教育学院学报,2010,30(5):88-91.