Response of citrus to vesicular–arbuscular mycorrhizal inoculation in unsterile soils

1983 ◽  
Vol 61 (10) ◽  
pp. 2729-2732 ◽  
Author(s):  
A. Manjunath ◽  
R. Mohan ◽  
D. J. Bagyaraj
Keyword(s):  
Sandy Soils ◽  
Arbuscular Mycorrhizal ◽  
Dry Weight ◽  
Nutrient Content ◽  
Glomus Fasciculatum ◽  
Soil Types ◽  
Lateritic Soils ◽  
Vesicular Arbuscular ◽  
Mycorrhizal Inoculation

Response of citrus to inoculation with the endomycorrhizal fungus Glomus fasciculatum in four soil types of India was studied under greenhouse conditions. Inoculation increased the dry weight of shoot and root and nutrient content of plants. Plants grown in sandy soils responded to a greater extent compared with plants grown in clayey or lateritic soils. The results brought out that mycorrhizal inoculation could be beneficial in certain unsterile soils in spite of the presence of native endophytes.

scholarly journals The effect of vesicular-arbuscular mycorrhizal inoculation on the growth and root colonization of ten strawberry cultivars

1992 ◽  
Vol 1 (5) ◽  
pp. 527-535 ◽  
Author(s):  
Mauritz Vestberg
Keyword(s):  
Root Colonization ◽  
Arbuscular Mycorrhizal ◽  
Dry Weight ◽  
Mycorrhizal Dependency ◽  
Vam Fungi ◽  
Shoot Dry Weight ◽  
Vesicular Arbuscular ◽  
Mycorrhizal Inoculation ◽  
Dependency Index ◽  
Strawberry Cultivars

Ten strawberry cultivars, four early maturing, three late maturing and three “special” cultivars, were inoculated with six strains of vesicular-arbuscular mycorrhizal (VAM) fungi in a pot experiment. Growth effects and colonization of the VAM fungi were studied. Three strains, Glomus macrocarpum V3, G. mosseae Rothamsted and G. sp. V4, were highly efficient, causing significant growth increases in most cultivars. ’Jonsok’ showed the highest mycorrhizal dependency index, 648, and ’Ostara’ the lowest, 269, for the mean response of all six fungi. The fungal strains which increased shoot growth the most also increased the runner plant formation the most. Early cultivars showed higher colonization percentages than late maturing cultivars. Sporulation of the introduced VAM fungi was on average more abundant in early and special cultivars than in late cultivars. Root colonization and strawberry shoot dry weight correlated significantly in most cultivars, but the correlation between colonization and runner formation was generally poor.

Determining vesicular–arbuscular mycorrhizal effectiveness by monitoring P status of leaf disks

1987 ◽  
Vol 33 (12) ◽  
pp. 1097-1101 ◽  
Author(s):  
Taufiqul Aziz ◽  
Mitiku Habte
Keyword(s):  
Soil Solution ◽  
Arbuscular Mycorrhizal ◽  
Glomus Aggregatum ◽  
Symbiotic Interaction ◽  
Mycorrhizal Effectiveness ◽  
Vesicular Arbuscular ◽  
Before And After ◽  
Mycorrhizal Inoculation ◽  
Soil Solution P ◽  
Leaf Disks

A greenhouse experiment was conducted to monitor the development of symbiotic interaction between the vesicular–arbuscular mycorrhizal (VAM) fungus Glomus aggregatum and Vigna unguiculata grown in a typical Oxisol before and after the soil was subjected to simulated erosion and at various levels of phosphorus in the soil solution. VAM development monitored in terms of P status of cowpea leaf disks revealed that VAM activity was not detected in the eroded soil unless the soil was amended with P. When P was not limiting, VAM activity (effectiveness) was detected as early as 17 days from planting, the activity peaking 5–10 days thereafter. Peak VAM activity was observed at a soil solution P level of 0.026 μg/mL and the peak values were similar in the eroded and uneroded soil samples. Maximum mycorrhizal inoculation effect was also observed at this level of soil solution P. Our results illustrate the usefulness of the leaf-disk technique for monitoring the development of the VAM symbiosis and the significance of soil solution P in regulating host response to VAM inoculation.

scholarly journals Vesicular-arbuscular Mycorrhizal Peat-based Substrates Enhance Symbiosis Establishment and Growth of Three Micropropagated Species

1993 ◽  
Vol 118 (6) ◽  
pp. 896-901 ◽  
Author(s):  
H. Wang ◽  
S. Parent ◽  
A. Gosselin ◽  
Y. Desjardins
Keyword(s):  
Glomus Intraradices ◽  
Arbuscular Mycorrhizal ◽  
Dry Weight ◽  
Gerbera Jamesonii ◽  
Subsequent Growth ◽  
Vam Fungi ◽  
Vesicular Arbuscular ◽  
Ornamental Species ◽  
Term Benefit

Micropropagated plantlets of Gerbera jamesonii H. Bolus ex Hook. F. `Terra Mix', Nephrolepis exaltata (L.) Schott `Florida Ruffles', and Syngonium podophyllum Schott `White Butterfly' were inoculated with two vesicular-arbuscular mycorrhizal (VAM) fungi, Glomus intraradices Schenck and Smith and G. vesiculiferum Gerderman and Trappe. They were potted in three peat-based media to determine the effects of mycorrhizal peat substrate on acclimatization and subsequent growth of micropropagated plantlets under greenhouse conditions. Symbiosis was established between the three ornamental species and VAM fungi within 4 to 8 weeks of culture in the greenhouse, but not during acclimatization. Mortality of Gerbera and Nephrolepis mycorrhizal plantlets was reduced at week 8 compared to the noninoculated control. A peat-based substrate low in P and with good aeration improved VAM fungi spread and efficiency. Mycorrhizal substrates had a long-term benefit of increasing leaf and root dry weight of Gerbera and Nephrolepis. Mycorrhizal Gerbera plants flowered significantly faster than non-mycorrhizal plants.

Arbuscular mycorrhizal inoculation in Citrus volkameriana Tan & Pasq

2020 ◽  
Vol 13 (9) ◽  
Author(s):  
Crescencio de la C. Castillo-Aguilar ◽  
G. May-Chablé ◽  
Víctor Hugo Quej ◽  
Ricardo Antonio Chiquini-Medina
Keyword(s):  
Experimental Design ◽  
Leaf Area ◽  
Aerial Part ◽  
Arbuscular Mycorrhizal ◽  
Dry Weight ◽  
Stem Diameter ◽  
Glomus Spp ◽  
Citrus Volkameriana ◽  
Number Of Leaves ◽  
Mycorrhizal Inoculation

Objective. We evaluated the effect of arbuscular mycorrhizal inoculation in Citrusvolkameriana Tan & Pasq plants with the application of Glomus spp Zac- 19 (G.claroides, G. diaphanum and G. albidum) to assess growth under greenhouseconditions without fertilizer application.Methodology. The evaluated treatments were inoculation with 2,4,6,8, and 10 g ofinoculum, plus a control without inoculation in an experimental design of completerandomized blocks with three replications. Variables were plant height, stem diameter,number of leaves, foliar area, dry weight, and mycorrhizal colonization.Results. A statistically significant response (p?0.01) to inoculation wasobserved, registering higher growth of mycorrhizal plants. The inoculation wasconsidered appropriate for all the levels evaluated. The outstanding treatment was 10 gof inoculum that produced plants with 110.16 cm in height for the last sampling; 38.56leaves per plant; 1.13 cm stem diameter; 35.95 g dry weight of root; 76.88 g dry weightof the aerial part of the plant; 225.03 cm 2 of leaf area per plant and 88.87% ofmycorrhizal colonization.Conclusions. The application of 10 g per plant to the roots of Citrus volkameriana fromthe Glomus Zac-19 arbuscular mycorrhizal consortium promoted the production of morevigorous plants for grafting, without the application of chemical fertilizer.

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