scholarly journals ARBUSCULAR MYCORRHIZAL INOCULATION AND SHADING ENHANCE CROP PERFORMANCE AND QUALITY OF GREENHOUSE Begonia semperflorens

2019 ◽  
Vol 18 (3) ◽  
pp. 17-33 ◽  
Author(s):  
Leo Sabatino ◽  
Fabio D’anna ◽  
Livio Torta ◽  
Giorgio Ferrara ◽  
Giovanni Iapichino

Mycorrhizal fungi are gaining interest in the floriculture sector due to the beneficial effects on a crop performance and ornamental quality. The aim of the current study was to assess the effect of inoculation with the arbuscular mycorrhizal (AM) fungi Rhizophagus irregularis on ornamental quality of Begonia × semperflorens-cultorum grown in two different protected cultivation systems: a shadehouse or glasshouse. The inoculated plants incurred a significant increase of plant height by 34.6%, lateral shoot length by 27.9%, number of lateral shoots by 41.2%, number of flowers per plant by 102.9%, flower diameter by 27.5%, and stems dry weight by 263.6%. High temperatures in the glasshouse negatively affected the AM root colonization. On the contrary, shading induced higher mycorrhizal colonization (48.6%) and increased plant height, number of lateral shoots, number of flowers per plant and flower diameter compared to the glasshouse environment. Taking all together, our results clearly demonstrated that mycorrhizal inoculation at transplanting and shading may be beneficial to floriculture growers wishing to produce high quality B. semperflorens-cultorum plants during the spring-summer season.

2017 ◽  
Vol 70 (2) ◽  
Author(s):  
Beata Janowska ◽  
Roman Andrzejak

The effect of mycorrhization on development and flowering of <em>Tagetes patula</em> L. ‘Yellow Boy’ and <em>Salvia splendens</em> Buc’hoz ex Etl. ‘Saluti Red’ was assessed. Control treatments were those in which plants were grown in peat substrate, as opposed to the treatments in which the substrate was supplemented with mycorrhizal fungi. Mycorrhiza-treated plants of <em>T. patula</em> ‘Yellow Boy’ produced more inflorescence buds. In <em>S. splendens</em> ‘Saluti Red’, thanks to symbiosis with fungi, more flowers per inflorescence developed. Mycorrhization had no effect on plant height in <em>T. patula</em> ‘Yellow Boy’ and <em>S. splendens</em> ‘Saluti Red’. However, after its application plants tillered more intensively forming more primary lateral shoots. Mycorrhiza-treated cultivars of both species had a higher index of greenness.


Agronomy ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 644
Author(s):  
Roman Andrzejak ◽  
Beata Janowska

This study was conducted to assess the influence of gibberellic acid (GA3) and arbuscular mycorrhizal fungi (AMF) on the flowering and quality of Zantedeschia albomaculata (Hook.) Baill ‘Albomaculata’ plants. Before planting, the rhizomes were soaked in water or an aqueous solution of GA3 at a concentration of 150 mg dm−3 for 30 min. A mixture of AMF was applied to the rhizomes a week after planting. The AMF treatment increased the yield of inflorescences of the ‘Albomaculata’ cultivar by 100%. AMF and GA3 had a favourable effect on the quality of inflorescences, expressed by the length of peduncles, whereas AMF individually positively affected the length of the spathes. AMF and GA3 had no effect on the level of macroelements in calla lily leaves, with the exception of calcium (Ca). The leaves of mycorrhized plants had a high content of sodium (Na) and micronutrients, except for iron (Fe). The results of the study showed that GA3 could be replaced by mycorrhizal inoculation when applied to Zantedeschia plants.


2016 ◽  
Vol 73 (1) ◽  
Author(s):  
Happy WIDIASTUTI ◽  
Nampiah SUKARNO ◽  
Latifah Kosim DARUSMAN ◽  
Didiek Hadjar GOENADI ◽  
Sally SMITH ◽  
...  

SummaryA green house experiment was conducted tostudy the effect of spore number and species ofAM fungi as inoculant of oil palm. Two species ofAM fungi was evaluated in this study namelyAcaulospora tuberculata and Gigaspora margaritaand three spore number were tested i. e 200, 350,and 500 spores. There two fungi have thepotential as AM fungi inoculant for oil palm. Thesoil used was acid soil from Cikopomayak, WestJava while the oil palm seedling was from OilPalm Research Institute, Medan. A polybag sized20 x 40 cm was used. Spores as type of inoculantaffect the oil palm growth in longer time. Thebest growth of the seedling in term of height,fresh, and dry weight was obtained byinoculation at 500 spores of A. tuberculata andG. margarita. However, at 500 spores perpolybag, growth and N, P, and K uptake ofseedlings inoculated with A. tuberculata andG. margarita were not significantly differentexcept for seedling and root fresh weight. Oilpalm seedling inoculated with A. tuberculata at500 spores per seedling resulted higher root andseedling fresh weight compared with thoseinoculated with G. margarita. The different effectof seedling on A. tuberculata and G. margaritainoculation at 200 and 350 spores per seedlingwere only observed in plant height, fresh and dryweight of seedlings. The plant height, fresh, anddry weight of seedlings inoculated withA. tuberculata at 200 and 350 spores per seedlingwere higher compared with those inoculatedwith G. margarita. In addition inoculation withA. tuberculata at 200 spores per seedling resultedhigher N and K uptake of seedling compared withthose inoculated with G. margarita.RingkasanSuatu penelitian rumah kaca telah dilakukanuntuk mempelajari pengaruh jumlah spora danspesies cendawan mikoriza arbuskula (CMA)sebagai inokulum pada bibit kelapa sawit. Duaspesies CMA yang diuji ialah Acaulosporatuberculata dan Gigaspora margarita sedangkanjumlah spora yang diuji ada tiga tingkat yaitu200, 350, dan 500 spora. Bibit kelapa sawitberumur dua bulan ditanam di polibag berukuran20 x 40 cm yang berisi tanah yang bereaksimasam berasal dari Cikopomayak. Hasil yangdiperoleh menunjukkan bahwa spora sebaganokulum bibit kelapa sawit dapat mempengaruhipertumbuhan kelapa sawit namun diperlukanwaktu yang lebih lama untuk mendapatkanrespons inokulasi. Pertumbuhan tertinggi padapeubah tinggi bibit, bobot basah, dan bobotkering diperoleh pada inokulasi sebanyak 500spora per polibag baik untuk A. tuberculatamaupun G. margarita. Namun, pada inokulasisebanyak 500 spora per polibag, pertumbuhandan serapan N, P, dan K bibit yang diinokulasiA. tuberculata dan G. margarita tidak berbedanyata kecuali pada peubah bobot basah akar danbobot basah bibit. Bobot basah akar dan bobotbasah bibit kelapa sawit yang diinokulasiA. tuberculata sebanyak 500 spora, lebih tinggidibandingkan dengan bibit yang diinokulasidengan G. margarita pada jumlah spora yangsama. Pengaruh spesies hanya dapat ditunjukkanpada inokulasi 200 dan 350 spora khususnya padapeubah tinggi bibit, bobot basah, dan bobotkering bibit. Tinggi bibit, bobot basah dan bobotkering bibit yang diinokulasi A. tuberculata padajumlah spora 200 dan 350 per polibag lebih tinggidibandingkan dengan yang diinokulasiG. margarita. Tampak bahwa inokulasiA. tuberculata dengan 200 spora per polibagmenghasilkan serapan N dan K lebih tinggidibandingkan dengan yang diinokulasiG. margarita pada jumlah spora yang sama.


2013 ◽  
Vol 5 (3) ◽  
pp. 316-324 ◽  
Author(s):  
Khirood DOLEY ◽  
Paramjit Kaur JITE

The present experiment was conducted at University of Pune for biocontrol of soil-borne plant pathogen Sclerotium rolfsii by incorporating arbuscular mycorrhizal fungi (Glomus fasciculatum) and conventional system of cultivation with different spacing pattern (15 and 30 cm) in field. Both mycorrhizal inoculation and 30 cm spacing pattern significantly increased growth and yield as compared to control or 15 cm spacing pattern. The pathogenic mycorrhizal groundnut plants in 30 as well as 15 cm spacing pattern showed better growth in terms of plant height, leaf and pod number, fresh and dry weight of whole groundnut plant in comparison to non-mycorrhizal pathogenic ones and the plant growth was better in 30 spacing than 15 cm. The colonization by AM fungi in both spacing pattern was higher in absence of pathogen S. rolfsii. However, pathogen’s presence decreased the mycorrhizal colonization considerably in 30 and 15 cm. The disease severity and incidence were recorded to be lowered when inoculated with mycorrhiza in pathogenic groundnut plants as compared to non-mycorrhizal pathogenic ones in both spacing pattern and incidence and severity was significantly lower in 30 cm as compared to 15 cm. Therefore, it was observed from our results that for management of soil-borne pathogens inoculation of AM fungi and spacing patterns are necessary.


2021 ◽  
Vol 43 (4) ◽  
Author(s):  
Ricardo Fernando da Rui ◽  
Silvia Correa Santos ◽  
Elaine Reis Pinheiro Lourente ◽  
Silvana de Paula Quintão Scalon ◽  
Jolimar Antonio Schiavo ◽  
...  

Abstract The use of alternative technologies involving biological processes, with economic and ecological gains, is desirable for both the expansion of Musa spp. farming and the renovation of areas with low yields. Arbuscular mycorrhizal fungi (AMF) can stimulate plant growth, especially by increasing the absorption of phosphorus (P) and other nutrients. This study analyzes the influence of AMF on the growth and physiology of micropropagated Musaspp. plants submitted to doses of P. The experimental design was randomized blocks, in a 5 x 5 factorial arrangement, in which the factors were inoculation with AMF (Glomus clarum, Gigaspora margarita, , Gigaspora albida,Clareoideoglomus etunicatum, and the control without AMF) and five doses of P (0, 50, 100, 200, and 400 mg kg-1), with four replicates. The application of P doses increased growth in micropropagated Musaspp. seedlings, regardless of mycorrhizal inoculation. The highest rates of mycorrhizal colonization occurred at the lowest P doses, and the dose of 50 mg kg-1 P provided better conditions for mycorrhizal formation in all AMF species under study. The symbioses with AMF, as well as the use of P, increased photosynthesis rate, thus favoring the growth, development, and quality of Musa spp. seedlings. Species G. clarum, C. etunicatum, and G. margarita were the most promising for plant growth.


2016 ◽  
Vol 73 (1) ◽  
Author(s):  
Happy WIDIASTUTI ◽  
Nampiah SUKARNO ◽  
Latifah Kosim DARUSMAN ◽  
Didiek Hadjar GOENADI ◽  
Sally SMITH ◽  
...  

SummaryA green house experiment was conducted tostudy the effect of spore number and species ofAM fungi as inoculant of oil palm. Two species ofAM fungi was evaluated in this study namelyAcaulospora tuberculata and Gigaspora margaritaand three spore number were tested i. e 200, 350,and 500 spores. There two fungi have thepotential as AM fungi inoculant for oil palm. Thesoil used was acid soil from Cikopomayak, WestJava while the oil palm seedling was from OilPalm Research Institute, Medan. A polybag sized20 x 40 cm was used. Spores as type of inoculantaffect the oil palm growth in longer time. Thebest growth of the seedling in term of height,fresh, and dry weight was obtained byinoculation at 500 spores of A. tuberculata andG. margarita. However, at 500 spores perpolybag, growth and N, P, and K uptake ofseedlings inoculated with A. tuberculata andG. margarita were not significantly differentexcept for seedling and root fresh weight. Oilpalm seedling inoculated with A. tuberculata at500 spores per seedling resulted higher root andseedling fresh weight compared with thoseinoculated with G. margarita. The different effectof seedling on A. tuberculata and G. margaritainoculation at 200 and 350 spores per seedlingwere only observed in plant height, fresh and dryweight of seedlings. The plant height, fresh, anddry weight of seedlings inoculated withA. tuberculata at 200 and 350 spores per seedlingwere higher compared with those inoculatedwith G. margarita. In addition inoculation withA. tuberculata at 200 spores per seedling resultedhigher N and K uptake of seedling compared withthose inoculated with G. margarita.RingkasanSuatu penelitian rumah kaca telah dilakukanuntuk mempelajari pengaruh jumlah spora danspesies cendawan mikoriza arbuskula (CMA)sebagai inokulum pada bibit kelapa sawit. Duaspesies CMA yang diuji ialah Acaulosporatuberculata dan Gigaspora margarita sedangkanjumlah spora yang diuji ada tiga tingkat yaitu200, 350, dan 500 spora. Bibit kelapa sawitberumur dua bulan ditanam di polibag berukuran20 x 40 cm yang berisi tanah yang bereaksimasam berasal dari Cikopomayak. Hasil yangdiperoleh menunjukkan bahwa spora sebaganokulum bibit kelapa sawit dapat mempengaruhipertumbuhan kelapa sawit namun diperlukanwaktu yang lebih lama untuk mendapatkanrespons inokulasi. Pertumbuhan tertinggi padapeubah tinggi bibit, bobot basah, dan bobotkering diperoleh pada inokulasi sebanyak 500spora per polibag baik untuk A. tuberculatamaupun G. margarita. Namun, pada inokulasisebanyak 500 spora per polibag, pertumbuhandan serapan N, P, dan K bibit yang diinokulasiA. tuberculata dan G. margarita tidak berbedanyata kecuali pada peubah bobot basah akar danbobot basah bibit. Bobot basah akar dan bobotbasah bibit kelapa sawit yang diinokulasiA. tuberculata sebanyak 500 spora, lebih tinggidibandingkan dengan bibit yang diinokulasidengan G. margarita pada jumlah spora yangsama. Pengaruh spesies hanya dapat ditunjukkanpada inokulasi 200 dan 350 spora khususnya padapeubah tinggi bibit, bobot basah, dan bobotkering bibit. Tinggi bibit, bobot basah dan bobotkering bibit yang diinokulasi A. tuberculata padajumlah spora 200 dan 350 per polibag lebih tinggidibandingkan dengan yang diinokulasiG. margarita. Tampak bahwa inokulasiA. tuberculata dengan 200 spora per polibagmenghasilkan serapan N dan K lebih tinggidibandingkan dengan yang diinokulasiG. margarita pada jumlah spora yang sama.


2021 ◽  
Vol 13 (3) ◽  
pp. 1226
Author(s):  
Ana Cruz-Silva ◽  
Andreia Figueiredo ◽  
Mónica Sebastiana

Grapevine (Vitis vinifera L.), widely used for berry and wine production, is highly susceptible to the pathogenic oomycete Plasmopara viticola, the etiological agent of grapevine downy mildew disease. The method commonly used to prevent and control P. viticola infection relies on multiple applications of chemical fungicides. However, with European Union goals to lower the usage of such chemicals in viticulture there is a need to develop new and more sustainable strategies. The use of beneficial microorganisms with biocontrol capabilities, such as the arbuscular mycorrhizal fungi (AMF), has been pointed out as a viable alternative. With this study, we intended to investigate the effect of AMF colonization on the expression of P. viticola effectors during infection of grapevine. Grapevine plants were inoculated with the AMF Rhizophagus irregularis and, after mycorrhizae development, plants were infected with P. viticola. The expression of P. viticola RxLR effectors was analyzed by real-time PCR (qPCR) during the first hours of interaction. Results show that pre-mycorrhizal inoculation of grapevine alters the expression of several P. viticola effectors; namely, PvRxLR28, which presented decreased expression in mycorrhizal plants at the two time points post-infection tested. These results suggest that the pre-inoculation of grapevine with AMF could interfere with the pathogen’s ability to infect grapevine by modulation of pathogenicity effectors expression, supporting the hypothesis that AMF can be used to increase plant resistance to pathogens and promote more sustainable agriculture practices, particularly in viticulture.


1998 ◽  
Vol 28 (1) ◽  
pp. 150-153
Author(s):  
J N Gemma ◽  
R E Koske ◽  
E M Roberts ◽  
S Hester

Rooted cuttings of Taxus times media var. densiformis Rehd. were inoculated with the arbuscular mycorrhizal fungi Gigaspora gigantea (Nicol. & Gerd.) Gerd. & Trappe or Glomus intraradices Schenck and Smith and grown for 9-15 months in a greenhouse. At the completion of the experiments, leaves of inoculated plants contained significantly more chlorophyll (1.3-4.1 times as much) than did noninoculated plants. In addition, mycorrhizal plants had root systems that were significantly larger (1.3-1.4 times) and longer (1.7-2.1 times) than nonmycorrhizal plants, and they possessed significantly more branch roots (1.3-2.9 times). No differences in stem diameter and height or shoot dry weight were evident at the end of the experiments, although the number of buds was significantly greater in the cuttings inoculated with G. intraradices after 15 months.


2018 ◽  
Vol 9 (3) ◽  
pp. 196-204
Author(s):  
Maria Paulina ◽  
Irdika Mansur ◽  
Ahmad Junaedi

Sugar palm is one of local plants spesies that may potential for reclamation program because can be planted under the stands of forest crops. Forest crops can be shade seedlings sugar palm from direct sunlight because the growth of sugar palm is relatively slow. Sugar palm can be useful even without cutting down the trees. Previously, sugar palm had been planted at PT Berau Coal and had produced fruit. The research was conducted at coal post-mining land of PT Bukit Asam, Tanjung Enim, South Sumatera. The research using combination of AMF and liming treatment is as follows, ie MaK0 (control), Mak1 (seedling with AMF without inoculation; liming 30 g plant-1), MiK0 (AMF indigenous seedling inoculation; without liming), MiK2 (AMF indigenous seedling inoculation, liming 60 g plant-1), MmK0 (AMF mycofer seedling inoculation; without liming), and MmK3 (AMF mycofer seedling inoculation, liming 120 g plant-1). The results showed that sugar palm could be grown in the coal post-mining land. The combination of AMF and liming treatment did not significant effect on observed variables of plant height, rachis length, diameter, leaves number, number of spore and root cholonization. Sugar palm seedlings that have been infected with AMF could be grown and provide a good growth response even without liming.Keywords : Arbuscular Mycorrhizal Fungi (AMF), marginal land, sugar palm


2017 ◽  
Vol 8 (1) ◽  
pp. 20-25
Author(s):  
Fransisca Yosina Regina Luturmas ◽  
Sri Wilarso Budi R. ◽  
Irdika Mansur

Jabon (Anthocephallus cadamba Roxb.) is one of fast-growing species with high economical value, and well adapted on some of soil types. The aims of this research were to analyze the effectiveness of AMF species isolated from Samama (Anthocephallus macrophyllus (Roxb.) Havil) and to determine the favorable dose of nitrogen and phosphate fertilizer for Jabon growth. The research was conducted CRD-split plot design main plot was Acaulospora sp.1 (M1), Glomus sp.1 (M2), Acaulospora sp.2 (M3), Acaulospora sp.3 (M4), Glomus sp.2 (M5). While the fertilizer as the sub-plot, consist of control (P0), urea 0.5g+rockphosphat 2g (P1), urea 1g+rockphosphat 4g (P2). The result showed that AMF and fertilizer applications effectively improved Jabon grown, especially in height, stem diameter, and shoot dry weight. The interaction (M4P1) increased plant height 154.73%, diameter 75.38% and shoot dry weight 376.09% compared with control. P1 treatment was better for growth of Jabon that was inoculated by mycorrhiza. Acaulospora sp.1 (M1) originally from Samama without fertilizer had the best effectiveness for Jabon growth.Key words: Acaulospora, indigenous


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