The Application of K Phosphites to Seed Tubers Enhanced Emergence, Early Growth and Mycorrhizal Colonization in Potato (<i>Solanum tuberosum</i>)

Abstract

Rapid emergence and a vigorous growth prevent the seed tubers from infections by soil microbes and allow a rapid interception of solar radiation. In this work, the effect of the potassium phosphites (KPhi) applied to seed tubers of two potato cultivars on crop emergence and early growth was studied. Two experiments were performed under greenhouse and field conditions. Emergence of plants, leaf area, dry matter and the number of primary stems were measured in both experiments. Furthermore, mycorrhizal colonization was also measured on roots under field conditions. The application of KPhi reduced the period between planting and emergence, and increased leaf area and dry matter. The ratio between dry matter of aerials and underground organs was not affected by KPhi. Indigenous mycorrhizal colonization increased after KPhi application to seed tubers. These results confirm the benefit of the application of KPhi to seed tubers on early plant growth and suggest that their application in crop production would be advantageous.

Effect of Applying Potassium Phosphite with Potassium Fulvate on Plant Growth

“…Phosphorous is bonded with three oxygen atoms to form Phi molecule, These three O atoms in the phi molecule give this anion increased mobility in the whole plant tissues, also phi is easily absorbed and transported through both the xylem and the phloem to all areas of the plant because of its high solubility, Non-biological oxidation of Phi to Pi gradually in plant (McDonald et al, 2001;Gómez-Merino and Trejo-Téllez, 2016). The finding of the present study is in agreement with Glinicki et al, (2010); Tambascio et al, (2014); Constán-Aguilar et al, (2014) who found that phi-containing products stimulated the parameters of growth, leaf area, fresh and dry weight when adding under sufficient conditions for P in the medium of growth. Also, these results are in harmony with the finding of Sharaf El-Dine et al, (2011); Suh et al, (2014); Esringü et al, (2015); Taha et al, (2016); Abdel-Baky et al, (2019) who found that fulvic acid increased all parameters of plant growth.…”

Effect of potassium and manganese phosphites in the control of Pythium damping‐off in soybean: a feasible alternative to fungicide seed treatments

“…Similar results were found by Abbasi and Lazarovits when they tested copper phosphite (CuPhi) for potential phytotoxicity on soybean. Potential stimulation of mycorrhizal fungal infection. Phis have been reported to stimulate infections by mycorrhizal fungi, protect against certain nematodes and increase mycorrhizal colonization Easy application and relatively low costs.…”

The Effect of Biostimulants on the Health Status and Content of Chlorogenic Acids in Potato Tubers (Solanum Tuberosum L.) with Colored Flesh

“…In a study by Buysens et al (2016), the application of T. harzianum and Rhizophagus irregularis to alfalfa (Medicago sativa) grown as a cover crop increased potato yields. Synthetic biostimulants (growth regulators, inorganic salts, phenolic compounds) and natural biostimulants (plant, bacterial and algal extracts) are also increasingly often used in agricultural practice (Tambascio et al 2014). Algal extracts have complex composition and deliver various benefits, including greater yields (Wierzbowska et al 2015) and higher resistance to abi-otic and biotic stress (Kosanić et al 2015;Esserti et al 2017).…”