THE INOCULATION OF WHITE CLOVER WITH MYCORRHIZAL FUNGI IN UNSTERILE HILL SOILS

1982 ◽  
Vol 92 (1) ◽  
pp. 89-102 ◽  
Author(s):  
A. RANGELEY ◽  
M. J. DAFT ◽  
P. NEWBOULD
Keyword(s):  
White Clover ◽  
Mycorrhizal Fungi ◽  
Hill Soils

scholarly journals Single or dual inoculation of arbuscular mycorrhizal fungi and rhizobia regulates plant growth and nitrogen acquisition in white clover

2020 ◽  
Vol 66 (No. 6) ◽  
pp. 287-294
Author(s):  
Miao-Miao Xie ◽  
Ying-Ning Zou ◽  
Qiang-Sheng Wu ◽  
Ze-Zhi Zhang ◽  
Kamil Kuča
Keyword(s):  
Plant Growth ◽  
Arbuscular Mycorrhizal Fungi ◽  
White Clover ◽  
Mycorrhizal Fungi ◽  
Nitrogenase Activity ◽  
Arbuscular Mycorrhizal ◽  
Total Soluble Protein ◽  
Nitrogen Acquisition ◽  
Dual Inoculation ◽  
N Acquisition

The present work aimed to analyse whether and how single or dual inoculation with arbuscular mycorrhizal fungi (Funneliformis mosseae, Paraglomus occultum, and Rhizophagus intraradices) and rhizobia (Rhizobium trifolii) improved plant growth and stimulated nitrogen (N) acquisition of white clover. AMF inoculation significantly (P < 0.05) increased root nodule number by 117‒173%, and additional Rh considerably stimulated mycorrhizal growth. Single AMF or Rh treatment dramatically increased shoot by 36‒281% and root biomass by 16‒36% than non-inoculated control, and dual inoculation of Rh and P. occultum or R. intraradices further magnified the positive effect. Leaf and root N content, root total soluble protein content, root nitrogenase activity, and amino acid (e.g., alanine, arginine, asparagine, aspartate, phenylalanine, proline, and tryptophan) concentrations were significantly increased by single or dual inoculation, while dual inoculation of AMF and Rh had significantly superior roles than single corresponding AMF or Rh inoculation. These results suggested that AMF and Rh represented synergetic effects on accelerating N acquisition of white clover to some extent, while the combination of P. occultum and Rh was the best.  

The effect ofRhizobiuminoculation on white clover in improved hill soils in the United Kingdom

1982 ◽  
Vol 99 (3) ◽  
pp. 591-610 ◽  
Author(s):  
P. Newbould ◽  
A. J. Holding ◽  
G. J. Davies ◽  
Anne Rangeley ◽  
G. J. F. Copeman ◽  
...  
Keyword(s):  
White Clover ◽  
Positive Response ◽  
Statistical Significance ◽  
Plant Cover ◽  
Peat Soils ◽  
The United Kingdom ◽  
Matter Production ◽  
Harvest Year ◽  
Hill Soils ◽  
Podzol Soils

SUMMARYThe benefits to establishment and growth of white clover cvs Aberystwyth S.184 and Grasslands Huia of inoculation with three strains ofRhizobium trifolii, using the peat or liquid inoculum techniques, were investigated during 1975–8 on improved hill soils ranging from brown earth through dry and wet peaty podzol to deep peat.Inoculation induced positive response in either number of seedlings, plant cover or dry-matter production in 18 out of 139 comparisons, had no effect in 118 and produced a negative response in three. Most of the positive responses to inoculation were at sites with wet peaty podzol or deep peat soils but of the five sites where increase in clover D.M. production was found in the first harvest year one was a brown earth. The positive agronomic responses occurred only when the proportion of plants with nodules was high and where a substantial proportion ( > 50%) of the latter contained introducedRhizobiumstrains at least in the year of sowing. The three negative responses were in numbers of seedlings on one brown earth and two dry peaty podzol soils and with the Huia cultivar only. Despite lack of statistical significance at individual sites the dominant overall trend was for inoculation to enhance seedling establishment and the early growtli of white clover in all soil types.On one brown earth and one dry peaty podzol soil there was some evidence that spraying theRhizobiumon to emerging white clover seedlings was more beneficial, atleast in microbiological terms, than the customary peat inoculum procedure.The incorporation of even a small amount of nitrogen (30 kg/ha) into the seed bed at the time of sowing adversely affected germination, establishment and growth of white clover in some soils. Sometimes the effects of this nitrogen persisted into the first harvest year.

scholarly journals Physiological responses of mycorrhizal symbiosis to drought stress in white clover

2021 ◽  
Vol 49 (1) ◽  
pp. 12209
Author(s):  
Sheng-Min LIANG ◽  
Dao-Ju JIANG ◽  
Miao-Miao XIE ◽  
Ying-Ning ZOU ◽  
Qiang-Sheng WU ◽  
...  
Keyword(s):  
Drought Stress ◽  
Arbuscular Mycorrhizal Fungi ◽  
White Clover ◽  
Root Morphology ◽  
Mycorrhizal Fungi ◽  
Arbuscular Mycorrhizal ◽  
Soil Drought ◽  
Sugar Accumulation ◽  
Antioxidant Defense Systems ◽  
Mycorrhizal Plants

The aim of the present study was to analyze the effects of two arbuscular mycorrhizal fungi (AMF), Funneliformis mosseae and Paraglomus occultum, on leaf water status, root morphology, root sugar accumulation, root abscisic acid (ABA) levels, root malondialdehyde (MDA) content, and root antioxidant enzyme activities in white clover (Trifolium repens L.) exposed to well-watered (WW) and drought stress (DS) conditions. The results showed that root colonization by F. mosseae and P. occultum was significantly decreased by 7-week soil drought treatment. Under drought stress conditions, mycorrhizal fungal treatment considerably stimulated root total length, surface area and volume, as compared with non-mycorrhizal controls. In addition, inoculation with arbuscular mycorrhizal fungi also increased leaf relative water content and accelerated the accumulation of root glucose and fructose under drought stress. Mycorrhizal plants under drought stress registered higher activities of superoxide dismutase (SOD), catalase (CAT), and peroxidase (POD) and ABA levels in roots, while lower MDA contents, relative to non-mycorrhizal plants. As a result, mycorrhiza-inoculated plants represented better physiological activities (e.g. antioxidant defense systems, root morphology, and sugar accumulation) than non-inoculated plants in response to soil drought, whilst P. occultum had superior effects than F. mosseae.

Uptake and partitioning of32P and65Zn by white clover as affected by eleven isolates of mycorrhizal fungi

2000 ◽  
Vol 23 (10) ◽  
pp. 1385-1395 ◽  
Author(s):  
H. Mehravaran ◽  
A. Mozafar ◽  
E. Frossard
Keyword(s):  
White Clover ◽  
Mycorrhizal Fungi
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