scholarly journals Influence of Biostimulants on Important Traits ofZinnia elegansJacq. under Open Field Conditions

2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
Ishan Saini ◽  
Ashok Aggarwal ◽  
Prashant Kaushik
Keyword(s):  
Open Field ◽  
Mycorrhizal Fungi ◽  
Block Design ◽  
Trichoderma Viride ◽  
Growth Yield ◽  
Arbuscular Mycorrhizal ◽  
Field Trials ◽  
Morphological Characters ◽  
Field Conditions ◽  
Flower Quality

The efficacy of microbial treatment on growth, yield, and nutrient uptake is very well acknowledged for field crops. However, the use of microbes forZinnia eleganshas rarely been exploited under field trials. Therefore, in this study, we have evaluated the efficacy of different microbial bioinoculants on sixteen morphological and nine biochemical traits ofZ.elegans. We used two arbuscular mycorrhizal fungi (AMF) (Glomus mosseae(G) andAcaulospora laevis(A)) along withTrichoderma viride(T) andPseudomonas florescence(P) as five different treatments under open field conditions, in a randomized complete block design. There were significant differences for all of the traits studied. Treatment 5 (G + A + T + P) was noted as the best treatment for the improvement of morphological characters, whereas Treatment 4 (G + A + P) was most significant for the biochemical trait improvement inZ. elegans. Overall, this study provides useful insight into the bioinoculant treatment that can be applied to improve the yield and flower quality ofZ.elegansunder open field conditions.

scholarly journals Inoculation with Mycorrhizal Fungi and Other Microbes to Improve the Morpho-Physiological and Floral Traits of Gazania rigens (L.) Gaertn

Agriculture ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 51 ◽  
Author(s):  
Ishan Saini ◽  
Ashok Aggarwal ◽  
Prashant Kaushik
Keyword(s):  
Mycorrhizal Fungi ◽  
Block Design ◽  
Combined Treatment ◽  
Trichoderma Viride ◽  
Growth Yield ◽  
Arbuscular Mycorrhizal ◽  
Dry Weight ◽  
Microbial Inoculants ◽  
Acaulospora Laevis ◽  
Flower Quality

In the present analysis, we evaluated the effect of different microbial inoculants on growth and floral responses of Gazania rigens (L.) Gaertn. Two prevailing arbuscular mycorrhizal fungi (AMF) i.e., Funelliformis mosseae and Acaulospora laevis, along with Trichoderma viride and Pseudomonas fluorescens, were examined in a pot experiment. Independent roles of these four microbes and their different combinations were used in sixteen treatments of G. rigens. The experiment was conducted in a polyhouse with five replicates per treatment in a randomized complete block design. The results of microbial inoculants were very effective for growth yield and flowering response over the control. Early flowering was noted in the combination of F. mosseae, A. laevis and P. fluorescens, which also showed the best results for flower head size, flower fresh and dry weight, total chlorophyll, carotene and phosphorus content. Arbuscular mycorrhiza (AM) root colonization (%) and AM spore number were also the highest for the same treatment, whereas the number of leaves, number of buds and root length were maximum in the combined treatment (F. mosseae + A. laevis + T. viride + P. fluorescens). Overall, this study proposes that growers should consider microbial inoculants for the better yield and flower quality of G. rigens.

INFLUENCE OF ARBUSCULAR MYCORRHIZAL FUNGAL BIOSTIMULANTS AND CONVENTIONAL FERTILIZERS ON SOME SOLANACEOUS CROPS FOR GROWTH, PRODUCTIVITY AND NUTRIENT STOICHIOMETRY UNDER FIELD CONDITIONS IN SEMI- ARID REGION OF MAHARASHTRA, INDIA

2021 ◽  
Vol 9 (1) ◽  
pp. 75-86
Author(s):  
Keyword(s):  
Mycorrhizal Fungi ◽  
Glomus Intraradices ◽  
Solanum Tuberosum L ◽  
Block Design ◽  
Arbuscular Mycorrhizal ◽  
Field Conditions ◽  
Chemical Fertilizers ◽  
Dry Biomass ◽  
Consortium Culture ◽  
Arbuscular Mycorrhizal Fungal

The main objective of the study was to evaluate the outcome of inoculation with biological consortium culture of arbuscular mycorrhizal fungal species (Aculospora logula, Glomus fasciculatum, Glomus intraradices, Gigaspora margarita, and Scutellospora heterogama) and chemical fertilizers on Solanaceous crops (Solanum tuberosum L. cultivars, Lycopersicum esculentum L. and Solanum melongena L.) under field conditions during Rabi cropping season. The experimental plot was a randomized block design with four replications. The result revealed that gross yield, plant height, number of branches/plant, leaf moisture, leaf area, root length, and dry biomass were positively affected by the inoculation of consortium culture of arbuscular mycorrhizal fungi with 75% recommended dose of fertilizers (RDF). Overall, our study shows that inoculation of consortium mycorrhizae with 75% RDF gave better growth, dry biomass, nutrient uptake, and yield of solanaceous crops and reduces the dose of chemical fertilizers to improve sustainable crop production and creates a healthy environment.

scholarly journals Efficacy of fungicides in management of Downy mildew disease of Cucumber (Cucumis sativus L.) under open field conditions, in Dhading district of Nepal

2020 ◽  
Vol 3 (1) ◽  
pp. 240-252
Author(s):  
Shailesh Pandit ◽  
Hira Kaji Manandhar ◽  
Krishna Hari Dhakal ◽  
Sramika Rijal ◽  
Sandesh Bhandari ◽  
...  
Keyword(s):  
Downy Mildew ◽  
Cucumis Sativus ◽  
Open Field ◽  
Disease Incidence ◽  
Block Design ◽  
Trichoderma Viride ◽  
Field Conditions ◽  
Verticillium Lecanii ◽  
Cucumis Sativus L ◽  
Downy Mildew Disease

Downy mildew (Pseudoperonospora cubensis) is one of the most important disease of cucumber under open field conditions. Hence, the experiment was conducted to study the efficacy of fungicides in management of downy mildew disease of cucumber (Cucumis sativus L.) under open field in Chauradi-7 Dhading during spring season, 2019. Bhaktapur local variety of cucumber was used for the study. The experiment was laid out in single factor randomized complete block design with four replications. Three different bio-fungicides; Trichoderma viride + Trichoderma harzianum, Bacillus subtilis, Verticillium lecanii and one chemical fungicide; Krilaxyl (metalaxyl 8% + mancozeb 64%) were used as treatments. Normal water spray served as control. It was observed that bio-fungicides had insignificant effect in controlling the downy mildew. Pathological observation such as disease incidence percentage, severity percentage and AUDPC in bio-fungicides treated plots were not significantly different from water-sprayed control plots. Similarly, biometric attributes such as number of fruit, length and diameter of fruit, weight of fruit were also non-significant. Krilaxyl resulted significant effect in controlling downy mildew, providing maximum disease reduction (37.48%-50.72%) with lowest disease incidence (1.25-61.25%) and lowest value of AUDPC (138.7). Krilaxyl treated plots had higher number of fruit (6), longer length of fruit (17.15-18.95), higher diameter of fruit (4.16- 4.45 cm) and higher weight of fruit (677 - 759 g). Hence, chemical fungicide Krilaxyl was found better for the management of downy mildew disease in open field cucumber cultivation. Further, researches on bio-fungicides, especially of native strains are required for best result.

scholarly journals Application of Humic Acid and Arbuscular Mycorrhizal Fungi to Increase Growth and Yields of Soybean in Ultisol

2020 ◽  
Vol 3 (2) ◽  
pp. 56-64
Author(s):  
Rahayu Arraudah ◽  
Yudhy Harini Bertham ◽  
Hesti Pujiwati ◽  
Bambang Gonggo Murcitro ◽  
Entang Inoriah Sukarjo
Keyword(s):  
Humic Acid ◽  
Arbuscular Mycorrhizal Fungi ◽  
Mycorrhizal Fungi ◽  
Agricultural Land ◽  
Block Design ◽  
Arbuscular Mycorrhizal ◽  
Growth And Yield ◽  
Two Factors ◽  
Soybean Plants ◽  
Research Stage

Soybean is one of the most popular food crops for the community, but the needs for soybeans have not been fulfilled by soybean production. To meet the needs of soybeans, it is necessary to intensify agricultural land in Ultisol. This study aims to obtain the optimum concentration of humic acid and dosage of the Arbuscular Mycorrhizal Fungi (AMF) to increase soybean plants' production in Ultisols. This research was conducted from January to April 2020 in Beringin Raya Village, Muara Bangkahulu District, Bengkulu City, at an altitude of 10 m above sea level. The research design used a Randomized Complete Block Design (RCBD) two factors with three replications, arranged factorially in experimental units. The first factor is the concentration of humic acid, consisting of 4 levels: 0, 15, 30, and 45 mL L-1 . The second factor is the dose of AMF, consisted of 3 levels, namely: 0, 2.5, and 5 g plant-1. The results showed that the maximum soybean growth and yield in Ultisols were obtained from the humic acid concentration at 45 mL L-1 at the dose of AMF at 2.5 g plant-1 . The resulting production potential is 1.99 tons ha-1 . The administration of humic acid or AMF independently at this research stage had not yet given a maximum response to the growth and yield of soybean in Ultisol.

scholarly journals The Phosphate Inhibition Paradigm: Host and Fungal Genotypes Determine Arbuscular Mycorrhizal Fungal Colonization and Responsiveness to Inoculation in Cassava With Increasing Phosphorus Supply

2021 ◽  
Vol 12 ◽  
Author(s):  
Ricardo Alexander Peña Venegas ◽  
Soon-Jae Lee ◽  
Moses Thuita ◽  
Deusdedit Peter Mlay ◽  
Cargele Masso ◽  
...  
Keyword(s):  
Mycorrhizal Fungi ◽  
Arbuscular Mycorrhizal ◽  
Field Trials ◽  
P Uptake ◽  
Fungal Colonization ◽  
P Availability ◽  
Terrestrial Plants ◽  
Soil Microbial ◽  
Arbuscular Mycorrhizal Fungal ◽  
P Supply

A vast majority of terrestrial plants are dependent on arbuscular mycorrhizal fungi (AMF) for their nutrient acquisition. AMF act as an extension of the root system helping phosphate uptake. In agriculture, harnessing the symbiosis can potentially increase plant growth. Application of the AMF Rhizophagus irregularis has been demonstrated to increase the yields of various crops. However, there is a paradigm that AMF colonization of roots, as well as the plant benefits afforded by inoculation with AMF, decreases with increasing phosphorus (P) supply in the soil. The paradigm suggests that when fertilized with sufficient P, inoculation of crops would not be beneficial. However, the majority of experiments demonstrating the paradigm were conducted in sterile conditions without a background AMF or soil microbial community. Interestingly, intraspecific variation in R. irregularis can greatly alter the yield of cassava even at a full application of the recommended P dose. Cassava is a globally important crop, feeding 800 million people worldwide, and a crop that is highly dependent on AMF for P uptake. In this study, field trials were conducted at three locations in Kenya and Tanzania using different AMF and cassava varieties under different P fertilization levels to test if the paradigm occurs in tropical field conditions. We found that AMF colonization and inoculation responsiveness of cassava does not always decrease with an increased P supply as expected by the paradigm. The obtained results demonstrate that maximizing the inoculation responsiveness of cassava is not necessarily only in conditions of low P availability, but that this is dependent on cassava and fungal genotypes. Thus, the modeling of plant symbiosis with AMF under different P levels in nature should be considered with caution.

scholarly journals Effect of different irrigation and fertilizer levels on growth, yield and cost economics of papaya (Carica papaya L.) cv. red lady under open field conditions

2020 ◽  
Vol 8 (4) ◽  
pp. 2184-2191
Author(s):  
Vinod Godi ◽  
Mahabaleshwar Hegde ◽  
Vidya A ◽  
Thimmegouda MN ◽  
Subbarayappa CT ◽  
...  
Keyword(s):  
Open Field ◽  
Carica Papaya ◽  
Growth Yield ◽  
Field Conditions

scholarly journals Evaluasi produksi dan kualitas inokulum fungi mikoriza arbuskula yang diproduksi dengan teknik hidroponik pada rumput Brachiaria decumbens var. mullato

2018 ◽  
Vol 16 (2) ◽  
pp. 10
Author(s):  
A T Aryanto ◽  
P DMH Karti ◽  
I Prihantoro
Keyword(s):  
Host Plant ◽  
Mass Production ◽  
Mycorrhizal Fungi ◽  
Dry Matter ◽  
Irrigation System ◽  
Block Design ◽  
Arbuscular Mycorrhizal ◽  
P Uptake ◽  
Brachiaria Decumbens ◽  
Technique System

<p>ABSTRAK<br /><br />Pengembangan hijauan membutuhkan pupuk ramah lingkungan. Fungi Mikoriza Arbuskular (FMA) adalah asosiasi yang melibatkan jamur dan akar yang dianggap sebagai pupuk hayati untuk meningkatkan produktivitas tanaman dan toleran dari kondisi lingkungan. Ketersediaan FMA masih jarang, sehingga dibutuhkan produksi massal untuk dapat mendukung pengembangan hijauan. Tujuan dari penelitian ini adalah untuk menghasilkan inokulum AMF menggunakan sistem hidroponik dalam jumlah besar secara efektif. Penelitian ini dibagi menjadi 2 tahap. Rancangan Acak Kelompok Faktorial yang digunakan pada tahap pertama dengan faktor A adalah jenis sistem irigasi (Manual, Drip dan Nutrien Film Technique System (NFT)) dan B adalah larutan nutrisi (AB Mix dan Hyponex Red) dengan Pueraria javanica sebagai tanaman inang. Rancangan Acak Lengkap (RAL) dilakukan pada tahap kedua dengan menggunakan produksi inokulum FMA dari tahap pertama dengan Brachiaria decumbens var Mullato sebagai tanaman inang. Hasil penelitian menunjukkan bahwa interaksi antara sistem NFT dan AB Mix signifikan (P&lt;0,05) menghasilkan bahan kering tajuk, bahan kering akar dan spora paling tinggi. Semua tipe sistem irigasi dan nutrisi menunjukkan infeksi akar&gt;96%. FMA inokulasi di Brachiaria decumbes var Mulato signifikan(P &lt;0,05) pada bahan kering tajuk, kandungan N, kandungan P dan serapan P.</p><p><br />Kata kunci: Brachiaria decumbes, FMA, sistem Drip, sistem NFT, Pueraria javanica,</p><p><br />ABSTRACT</p><p>Forage mass production development requires environmental friendly fertilizer. Arbuscular Mycorrhizal Fungi (AMF) are mutualitic symbioses between plant and fungi that considered as natural biofertilizer with benefit to improve plant productivitity and environment stress tolerance. The availability of AMF is still low, so it takes mass production to be able to support forage development. The aim of the research was to produce AMF inoculum using hydroponic system in large quantities. This research divided into 2 stages. The factorial randomized block design was used for the first stage with A factor was type of irrigation system (Manual, Drip and Nutrient Film Technique System (NFT)) and B was the nutritional solution (AB Mix and Hyponex Red) using Pueraria javanica as host plant. Completely randomized design was conducted for the second stage by using AMF inoculum production from first stage using Brachiariadecumbens var Mullat as host plant. The best result was a combination beetwen NFT system and AB Mix significantly (P&lt;0.05) produce highest shoot dry matter, root dry matter and spore production. All type of irrigation system and nutrition showed root infection &gt;96%. AMF inoculation in Brachiariadecumbes var Mulato was significant different (P&lt;0.05) on shoot dry matter, N content, P content and P uptake.</p><p><br />Keywords: AMF, B. decumbes, Drip system, NFT system, P. javanica,</p>

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