scholarly journals The Effects of Biostimulants on Induced Plant Defense

2021 ◽  
Vol 3 ◽  
Author(s):  
Ramom Vasconcelos Pereira ◽  
Camila C. Filgueiras ◽  
Joyce Dória ◽  
Maria Fernanda G. V. Peñaflor ◽  
Denis S. Willett
Keyword(s):  
Potential Role ◽  
Production Systems ◽  
Plant Growth Promoting Rhizobacteria ◽  
Alternative Methods ◽  
Insect Herbivores ◽  
Cascading Effects ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Agricultural Production Systems

The search for innovative and alternative methods for chemical control to manage pests is an increasingly growing reality. The use of biostimulants such as plant growth promoting rhizobacteria (PGPR) and humic acids (HA) has been shown to improve many agronomic characteristics of plants while increasing yield. These biostimulants also alter the production of secondary metabolites with consequences for insect herbivores. Here we review the role of biostimulants such as PGPR and HA in promoting and eliciting plant defenses. The cascading effects of using these biostimulants on insect herbivores and their natural enemies are discussed in this context. Synergism between biostimulants are also discussed. The potential role of these products in augmenting agricultural productivity is highlighted as is further need for additional research. This review highlights the potential of this tool to enhance integrated pest management in agricultural production systems, reduce the use of pesticides, and increase the efficiency of fertilization while supporting healthier more pest-resistant plants.

Unraveling the role of plant growth-promoting rhizobacteria in the alleviation of arsenic phytotoxicity: A review

2021 ◽  
pp. 126809
Author(s):  
Sayanta Mondal ◽  
Krishnendu Pramanik ◽  
Sudip Kumar Ghosh ◽  
Priyanka Pal ◽  
Tanushree Mondal ◽  
...  
Keyword(s):  
Plant Growth ◽  
Plant Growth Promoting Rhizobacteria ◽  
Plant Growth Promoting ◽  
Growth Promoting

scholarly journals Plant-Growth-Promoting Rhizobacteria Emerging as an Effective Bioinoculant to Improve the Growth, Production and Stress Tolerance of Vegetable Crops

2021 ◽  
Vol 22 (22) ◽  
pp. 12245
Author(s):  
Manoj Kumar ◽  
Ved Prakash Giri ◽  
Shipra Pandey ◽  
Anmol Gupta ◽  
Manish Kumar Patel ◽  
...  
Keyword(s):  
Plant Growth ◽  
Crop Production ◽  
Insect Pests ◽  
Vegetable Consumption ◽  
Plant Growth Promoting Rhizobacteria ◽  
Vegetable Crops ◽  
Vegetable Crop ◽  
Plant Growth Promoting ◽  
Growth Promoting

Vegetable cultivation is a promising economic activity, and vegetable consumption is important for human health due to the high nutritional content of vegetables. Vegetables are rich in vitamins, minerals, dietary fiber, and several phytochemical compounds. However, the production of vegetables is insufficient to meet the demand of the ever-increasing population. Plant-growth-promoting rhizobacteria (PGPR) facilitate the growth and production of vegetable crops by acquiring nutrients, producing phytohormones, and protecting them from various detrimental effects. In this review, we highlight well-developed and cutting-edge findings focusing on the role of a PGPR-based bioinoculant formulation in enhancing vegetable crop production. We also discuss the role of PGPR in promoting vegetable crop growth and resisting the adverse effects arising from various abiotic (drought, salinity, heat, heavy metals) and biotic (fungi, bacteria, nematodes, and insect pests) stresses.

scholarly journals VEGETATIVE GROWTH OF RAINBOW CHILI (Capsicum annuum L.) IN THE TREATMENT OF PGPR (Plant Growth Promoting Rhizobacteria), PGPR-NPK FERTILIZER, AND PGPR-COMPOST COMBINATION

Agric ◽  
2020 ◽  
Vol 32 (2) ◽  
pp. 95-104
Author(s):  
Jennefer Constantia ◽  
Rejeki Siti Ferniah
Keyword(s):  
Vegetative Growth ◽  
Organic Fertilizer ◽  
Plant Growth Promoting Rhizobacteria ◽  
Optimal Growth ◽  
Randomized Design ◽  
Plant Growth Promoting ◽  
Npk Fertilizer ◽  
Growth Promoting ◽  
Biological Fertilizer

Bolivian Rainbow Chili is one of the ornamental chili varieties which is unique in the form of its colorful fruit color. The vegetative growth of ornamental chilies requires additional nutrients and the role of microorganisms to obtain optimal growth. This study aims to determine the optimal growth of rainbow chilies using the application of PGPR biological fertilizer, a combination of PGPR biological fertilizer and NPK synthetic fertilizer, as well as a combination of PGPR biological fertilizer and compost organic fertilizer. This research was conducted with a completely randomized design (CRD). The data obtained were then analyzed by ANOVA and continued with the LSD test and Duncan’s test at the 5% test stage. The results showed that the combination treatment of PGPR and compost or PGPR and NPK provided optimal vegetative growth compared to single PGPR treatment.

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