Comparison of horizontal spread of white clover (Trifolium repens L.) grown under two artificial light sources differing in their content of blue light

被引:19
作者
Gautier, H
Varlet-Grancher, C
Baudry, N
机构
[1] INRA, Unite Bioclimatol, F-84914 Avignon 9, France
[2] INRA, SEPF, F-86600 Lusignan, France
关键词
blue light; branching; horizontal spread; morphogenesis; phyllochron; plant development; plant morphology; stolen growth; Trifolium repens L; white clover;
D O I
10.1006/anbo.1998.0643
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
The effects of blue light on the growth and development of different branches were studied to determine if variations in the blue light supply modified the horizontal spread of white clover. Cuttings of white clover ('Huia') were grown for 56 d in two controlled chambers under conditions similar except for level of blue light (BL). The horizontal spread of white clover was characterised by the phyllochron, internode length and branching or flowering of different axes. The responses to a reduction in BL were different according to axis degree: (1) on the main axis, lowering HL slightly decreased the phyllochron and had no effect on internode length or stolen length; (2) on older primary blanches, it decreased their phyllochron, but reduced stolen length due to a reduction in internode length; (3) on secondary branches, it increased the phyllochron and decreased internode length, triggering a strong reduction in stolen length (up to 54%). Moreover, an increase in BL reversed these effects. The switch to lower BL or higher BL hall no effect on internode length of primary branches, but triggered changes in internode length of the main axis. These differential effects of variations in BL on the morphogenesis of different branches are discussed in relation to 1:he clonal integration of variations in light composition. Changes in the horizontal spread of white clover induced by BL could play a role, combined with responses to low red:far-red ratio and low photosynthetic photon flux (PPF) in the strategy of horizontal colonisation and shade-avoidance of white clover. (C) 1998 Annals of Botany Company.
引用
收藏
页码:41 / 48
页数:8
相关论文
共 22 条
[1]   MORPHOLOGICAL RESPONSES OF WHEAT TO BLUE-LIGHT [J].
BARNES, C ;
BUGBEE, B .
JOURNAL OF PLANT PHYSIOLOGY, 1992, 139 (03) :339-342
[2]   PHOTOMORPHOGENESIS AND PHOTOASSIMILATION IN SOYBEAN AND SORGHUM GROWN UNDER BROAD-SPECTRUM OR BLUE-DEFICIENT LIGHT-SOURCES [J].
BRITZ, SJ ;
SAGER, JC .
PLANT PHYSIOLOGY, 1990, 94 (02) :448-454
[3]   SPECTRAL QUALITY DURING POD DEVELOPMENT MODULATES SOYBEAN SEED FATTY-ACID DESATURATION [J].
BRITZ, SJ ;
CAVINS, JF .
PLANT CELL AND ENVIRONMENT, 1993, 16 (06) :719-725
[4]   GROWTH OF CLOVER LEAVES - DEVELOPMENTAL MORPHOLOGY AND PARAMETERS AT 10 STAGES [J].
CARLSON, GE .
CROP SCIENCE, 1966, 6 (03) :293-&
[6]   INVOLVEMENT OF PHYTOCHROME IN LIGHT CONTROL OF STEM ELONGATION IN CUCUMBER (CUCUMIS-SATIVUS L) SEEDLINGS [J].
DRUMMHERREL, H ;
MOHR, H .
PHOTOCHEMISTRY AND PHOTOBIOLOGY, 1991, 53 (04) :539-544
[7]   NITROGEN NUTRITION AND GROWTH OF TALL FESCUE .1. CARBON ASSIMILATION AND PARTITIONING BETWEEN ORGANS [J].
GASTAL, F ;
SAUGIER, B .
AGRONOMIE, 1986, 6 (02) :157-166
[8]   Effects of blue light on the vertical colonization of space by white clover and their consequences for dry matter distribution [J].
Gautier, H ;
VarletGrancher, C ;
Baudry, N .
ANNALS OF BOTANY, 1997, 80 (05) :665-671
[9]   Regulation of leaf growth of grass by blue light [J].
Gautier, H ;
VarletGrancher, C .
PHYSIOLOGIA PLANTARUM, 1996, 98 (02) :424-430
[10]  
KIGEL H, 1981, PLANT SCI LETT, V21, P83