Bio-priming of rice seeds with novel bacterial strains, for management of seedborne Magnaporthe oryzae L.

Amruta, Narayanappa; Prasannakumar, M. K.; Kandikattu, Hemanth Kumar; Sarika, G.; Puneeth, M. E.; Ranjitha, H. P.; Vishwanath, K.; Manjunatha, C.; Pramesh, D.; Mahesh, H. B.; Narayanaswamy, S.

doi:10.1007/s40502-019-00492-6

Cited by 25 publications

(3 citation statements)

References 45 publications

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“…This current research provides valuable data about horned melon seed germination under hydro priming conditions. Hydro priming enhanced germination parameters in horned melon seeds, consistent with previous research on other crop species; chickpea [27], sunflower [28], rice [29], cowpea [30], and maize [31].…”

Section: Discussionsupporting

confidence: 90%

Hydropriming improves seed germination in horned melon (Cucumis metuliferus E. Mey. Ex Naudin) landraces

Mutetwa,

Chaibva,

Chagonda

et al. 2023

Eureka: LS

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The global popularity of horned melon highlights the need of sound crop establishment processes, since uniform and quick seed germination has a substantial influence on crop yield and quality. Using a Completely Randomised Design (CRD) with a factorial structure, the effects of hydro priming durations (0, 8, 16, 24, 32, and 40 h) on seeds of two horned melon landrace (L1&L2) were investigated. Hydro priming had significant (P>0.05) influence on several germination indices (germination percentage, relativized percentage, mean germination rate, germination index, synchronization, duration to 50 % germination, mean daily germination, peak value, and germination value). Among the germination indicators tested, landrace (L2) exhibited a considerably stronger germination response than L1. The findings also reveal a curvilinear relationship between priming length and germination percentage, with 24 hours being greatest proportionately. The mean germination rate, germination index, mean daily germination, peak value of germination, and germination value all rose as the hydro priming duration increased. Primed seeds germinated more quickly than unprimed ones. With increasing priming duration, the synchronization index fell linearly. The interaction between landraces and hydro priming was not significant (P>0.05) for final seed germinated, relativized germination, and synchronization indices, but it had a significant impact on all other indices. Because the efficacy of hydro priming tends to lessen with extended soaking, we recommend using it for a maximum of 32 hours. Future study should concentrate on alternative priming chemicals and the applicability of various priming solutions for various agroecosystems

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Section: Discussionsupporting

confidence: 90%

Hydropriming improves seed germination in horned melon (Cucumis metuliferus E. Mey. Ex Naudin) landraces

Mutetwa,

Chaibva,

Chagonda

et al. 2023

Eureka: LS

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“…Rice seeds were disinfected with 1.5% NaOCl for 5 min with constant agitation and rinsed with sterile distilled water 5 times. (Amruta et al, 2019). The disinfected rice seeds were immersed into the SSB culture before being placed on a Petri plate (20 rice seeds) layered with moist filter paper.…”

Section: Rice Seed Germination and Vigor Indexmentioning

confidence: 99%

Profiling of coastal silicon solubilizing rhizobacteria with plant-growth promoting properties for enhancing rice seedling early growth performance

Amiera, W. A.,

Ng, L. C.,

Ahmad, A.

2024

MJM

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Aims:The application of silicon solubilizing rhizobacteria (SSB) with various plant growth-promoting properties to improve the uptake of nutrients by plants is becoming the global trend in sustaining rice production systems. However, the identification and profiling of SSB from the coastal halophyte are still limited. This study was aimed to identify and profile the SSB with plant growth-promoting properties isolated from the coastal halophyte rhizosphere soil. Methodology and results:The rhizosphere soil of halophyte (Poaceae) was sampled and screened for SSB. The SSB obtained was further in vitro screened for lignocellulolytic activities and phosphate solubilization properties. The most potential SSB were clustered and selected using principal component analysis (PCA) and further evaluated for in vitro siderophore and IAA production, followed by rice seed germination and seedling growth performance. A total of 46 SSB were isolated from the coastal halophyte with the silicon solubilizing index ranging 1.01-4.6. Eight SSB isolates (SSB34, SSB37, SSB41, SSB24, SSB45, SSB46, SSB25 and SSB29) were identified and selected from the clustering analysis. Further analysis revealed that rice seedlings inoculated with the isolates SSB24, SSB29 and SSB46 exhibited significant sprouting rates compared with control. All these three SSB isolates were identified using 16S rRNA sequencing as Pantoea stewartii subsp. Indologenes (SSB24), Burkholderia lata strain 383 (SSB29) and Ralstonia syzygii strain ATCC 49543. Conclusion, significance and impact of study: The selected SSB isolates can potentially be suggested as a sustainable approach to promote rice seedling growth. Moreover, exploring SSB under field conditions to improve rice seedling growth through increasing nutrient availability for plant uptake needed to be focused.

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“…Beneficial microorganisms or plant growth-promoting microorganisms used for seed-enhanced plant stress tolerance against drought was also recorded due to bacterial priming (Bacillus sp.) (Amruta et al 2019;Singh et al 2016). Magnetic field treatments imparted tolerance to biotic and abiotic stresses (Bhardwaj et al 2012).…”

Section: Stress Resistancementioning

confidence: 99%

Seed Vigour and Invigoration

Basu

Groot

2023

Seed Science and Technology

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Seed vigour is an important aspect of seed quality. It is a quantitative trait which is responsible for overall seed performance in terms of rate and uniformity of seed germination, seedling growth, emergence ability under unfavourable environments and post storage performance. Seed vigour is controlled by genetic factors, initial seed quality, production environments, harvesting and storage conditions. Seed vigour tests provide a more sensitive index of seed performance per se than the germination test. Efforts have been focused on developing novel or improving existing methods of vigour estimation in different crops. The vigour tests are tools routinely used for in-house seed quality control programs, especially for field and vegetable crops. Some treatments can improve seed vigour, although the treatment effects are more evident under sub-optimum than optimum growing conditions. This chapter deals with different aspects of seed vigour and its effects on plant growth and discusses physiological and biochemical parameters to understand underlying mechanisms.

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Bio-priming of rice seeds with novel bacterial strains, for management of seedborne Magnaporthe oryzae L.

Cited by 25 publications

References 45 publications

Hydropriming improves seed germination in horned melon (Cucumis metuliferus E. Mey. Ex Naudin) landraces

Hydropriming improves seed germination in horned melon (Cucumis metuliferus E. Mey. Ex Naudin) landraces

Profiling of coastal silicon solubilizing rhizobacteria with plant-growth promoting properties for enhancing rice seedling early growth performance

Seed Vigour and Invigoration

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