Rhizophagus irregularis and nitrogen fixing azotobacter enhances greater yam (Dioscorea alata) biochemical profile and upholds yield under reduced fertilization

Kumar, Anand; Naqvi, Syed Danish Yaseen; Kaushik, Prashant; Khojah, Ebtihal; Amir, Mohd; Alam, Pravej; Samra, Bassem N.

doi:10.1016/j.sjbs.2022.02.041

Cited by 7 publications

(5 citation statements)

References 61 publications

(53 reference statements)

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“…Lombok communities generally grow the Dioscorea genus in fields and gardens under agroforestry systems. The result of this study is in line with other studies in which the Dioscorea genus is generally used for food security during long drought season and earthquake disaster (Obidiegwu and Akpabio 2017;Semwal et al 2021;Kumar et al 2022). This kind of traditional knowledge is already inherited from generation to generation (Susandarini et al 2021).…”

Section: Ethnobotany Of Dioscorea On Lombok Islandsupporting

confidence: 89%

The diversity, ethnobotany and nutrient contents of Dioscorea for post-disaster food security in Lombok, Indonesia

INDRIYATNO,

WIJAYANTO,

BATUBARA

et al. 2024

Biodiversitas

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Abstract. Indriyatno, Wijayanto N, Batubara I, Supriyanto. 2024. The diversity, ethnobotany and nutrient contents of Dioscorea for post-disaster food security in Lombok, Indonesia. Biodiversitas 25: 553-564. Earthquakes caused damage to infrastructure, houses, and roads in Lombok in 2018. After the earthquake, there was a shortage of food. Adaptation to address food shortage can be overcome by using local food sources, including those from the Dioscorea genus. The study aims to analyze the diversity and distribution, ethnobotany and nutrient contents of the Dioscorea genus in Lombok Island. Botanical explorations were conducted to identify the intraspecific varieties in the form of local types/names complemented with ethnobotanical study through structured interviews. The nutrient contents were determined using a standardized method in proximate analysis. The study found 12 local types of Dioscorea belonging to four species which are used by the community for adaptation after earthquake disaster, namely: D. bulbifera (kentang), D. bulbifera (engal), D. alata (uwi sawa), D. alata (lami), D. alata (uwi kuning ampenan), D. alata (uwi putih ampenan), D. alata (uwi ungu dara kunci), D. alata (uwi putih batu layar), D. alata (uwi ungu batu layar), D. esculenta var. apiculata (surak), D. esculenta var. spinosa (gembili) and D. pentaphylla (buyut). The highest diversity of Dioscorea is found in climate type C3 (8 local types), followed by climate type E (5 local types), climate type D4 (4 local types), climate type B2 (3 local types), and climate type C2 and D3 (1 local type). The local community utilizes the Dioscorea genus in several cultural events including when celebrating the Prophet Muhammad's birthday. The nutritional value of Dioscorea genus is high due to its carbohydrate content (66,09-76,96%), protein content (3.79-10.84%), fat content (1.70-9.58 %) and fiber content (0.32-6.81%). This study shows the potential of Dioscorea to be used as food sources that are cheap, easy to grow, and more adaptive to different environmental conditions to help post-earthquake communities.

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Section: Ethnobotany Of Dioscorea On Lombok Islandsupporting

confidence: 89%

The diversity, ethnobotany and nutrient contents of Dioscorea for post-disaster food security in Lombok, Indonesia

INDRIYATNO,

WIJAYANTO,

BATUBARA

et al. 2024

Biodiversitas

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“…The vine's growth is initially based on the planted sets' food reserve, with a well-settled root structure that begins to absorb nutrition from the soil and grows faster [22]. Similarly, Kumar et al [7], reported that the number of leaves, sprouts per tuber, and vine length significantly increased with the application of R. irregularis and Azotobacter [7].…”

Section: Discussionmentioning

confidence: 99%

“…The starch content was estimated with glucose, acid hydrolysis (ice-cold) with sulfuric acid, perchloric acid, and ethanol using absorption of 630 nm as reference point. The ascorbic acid content was determined with 2, 6-dichloro phenol indophenols dye, total soluble solids (TSS) were estimated using the drops of extract on a hand-held refractometer (values were expressed in • Brix), the total sugars were estimated by taking 0.5 g of dried and powdered material in 20-25 mg ethanol, and heating in a water bath for 2 hrs, and the total phenols were determined using the Folin-Ciocalteu method [7].…”

Section: Observation Of Chemical Analysis and Enzymatic Activitymentioning

confidence: 99%

“…Indeed, biofertilizers can help mitigate these adverse effects by improving microbial populations and fertility of soil. They are non-toxic and eco-friendly because they are beneficial to both crop productivity and yield [7]. Still, its multiplication ratio is limited, with around 10-30% of the total harvested product used as seed materials [8].…”

Section: Introductionmentioning

confidence: 99%

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Response of Yam (Dioscorea alata) to the Application of Rhizophagus irregularis and Potassium Silicate under Salinity Stress

2022

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Yam (Dioscorea alata) is a tropical plant that is considered critical for food security. The use of high fertilizer, low soil fertility, and insect pest infestation reduce yam tuber yield and quality. The present study was performed to determine the effect of potassium silicate and arbuscular mycorrhizal fungi (AMF) on yam cultivated under salinity stress. This study revealed that the combination of Rhizophagus irregularis (AMF) and Potassium silicate was more effective than their individual application on yam and were beneficial for overall analyzed characters. We observed the days to emergence and the average days to first leaf emergence decreased by 33.46% and 26.78%, respectively, the number of leaves increased by 45.23%, number of sprouts per seed tuber by 50%, vine length by 60.8%, vine length at harvest by 40.53%, the average leaf width by 53.79%, petiole length by 31.74%, tuber length by 43.84%, average diameter of tuber by 56.58%, and average number of tuber per vine by 46.15% in T5 treated plants. We also recorded that starch content increased by 21.89%, ascorbic acid by 61.51%, average moisture by 8.36%, TSS by 50%, and total sugar by 69.53% in T5 treated plants. The total phenol was found to be 1.53% higher in T3 applied plants, while the dry matter was 36.37% higher in T5 treatment. Furthermore, the enzymatic evaluation of MDA in leaves was found to be enhanced by 142% in T2. The enzyme 8-OHdG from the leaves sample was reported to be increased after T5 by 621.15%. Moreover, the amount of CAT was higher by 53.46% in T2 treated plants. Likewise, the amount of enzyme SOD and POX in leaves of D. alata enhanced by 30.91% and 51.15% T2 treatments respectively.

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“…It is also important to consider the important of Azotobacter due to its high plant growth promotion activities, nitrogen fixation, heavy metal tolerance, growth hormone production, and pesticide degradation [ 373 , 374 ]. It has been reported that Azotobacter salinestris can induce the tolerance of high contents of metal-oxide nanoparticles, and bacterial inoculation increased flower formation, photosynthesis, numbers of fruit, and lycopene content in tomato plants [ 375 ], with it having been proposed that the application of Azotobacter chroococcum also had significant effects on yam under different levels of nutrient deprivation, whereas it increased the biochemical properties of the final product [ 376 ].…”

Section: Stenotrophomonasmentioning

confidence: 99%

The Roles of Plant-Growth-Promoting Rhizobacteria (PGPR)-Based Biostimulants for Agricultural Production Systems

Sun,

Shahrajabian,

Soleymani

2024

Plants

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The application of biostimulants has been proven to be an advantageous tool and an appropriate form of management towards the effective use of natural resources, food security, and the beneficial effects on plant growth and yield. Plant-growth-promoting rhizobacteria (PGPR) are microbes connected with plant roots that can increase plant growth by different methods such as producing plant hormones and molecules to improve plant growth or providing increased mineral nutrition. They can colonize all ecological niches of roots to all stages of crop development, and they can affect plant growth and development directly by modulating plant hormone levels and enhancing nutrient acquisition such as of potassium, phosphorus, nitrogen, and essential minerals, or indirectly via reducing the inhibitory impacts of different pathogens in the forms of biocontrol parameters. Many plant-associated species such as Pseudomonas, Acinetobacter, Streptomyces, Serratia, Arthrobacter, and Rhodococcus can increase plant growth by improving plant disease resistance, synthesizing growth-stimulating plant hormones, and suppressing pathogenic microorganisms. The application of biostimulants is both an environmentally friendly practice and a promising method that can enhance the sustainability of horticultural and agricultural production systems as well as promote the quantity and quality of foods. They can also reduce the global dependence on hazardous agricultural chemicals. Science Direct, Google Scholar, Springer Link, CAB Direct, Scopus, Springer Link, Taylor and Francis, Web of Science, and Wiley Online Library were checked, and the search was conducted on all manuscript sections in accordance with the terms Acinetobacter, Arthrobacter, Enterobacter, Ochrobactrum, Pseudomonas, Rhodococcus, Serratia, Streptomyces, Biostimulants, Plant growth promoting rhizobactera, and Stenotrophomonas. The aim of this manuscript is to survey the effects of plant-growth-promoting rhizobacteria by presenting case studies and successful paradigms in various agricultural and horticultural crops.

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Rhizophagus irregularis and nitrogen fixing azotobacter enhances greater yam (Dioscorea alata) biochemical profile and upholds yield under reduced fertilization

Cited by 7 publications

References 61 publications

The diversity, ethnobotany and nutrient contents of Dioscorea for post-disaster food security in Lombok, Indonesia

The diversity, ethnobotany and nutrient contents of Dioscorea for post-disaster food security in Lombok, Indonesia

Response of Yam (Dioscorea alata) to the Application of Rhizophagus irregularis and Potassium Silicate under Salinity Stress

The Roles of Plant-Growth-Promoting Rhizobacteria (PGPR)-Based Biostimulants for Agricultural Production Systems

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