Jasmonic Acid and K-Phosphite Enhance Productivity and Technological Quality of Sugarcane Crop

Abstract

Plant resistance inducers are cost-effective and environmentally pleasing strategies of plant protection to mitigate biotic and abiotic agents threatening food safety and energy security. We, accordingly, present jasmonic acid and k-phosphite as low-cost strategies to enhance productive yield and technological quality of sugarcane crop. Exogenously treatment of the sugarcane variety ‘SP81-3250’ consisted of carrying out foliar application of jasmonic acid at 1, 1.5 and 2 ml L-1 and K-phosphite at 2, 4 and 6 ml L-1 before crop flowering. Interestingly, both systemic phytorregulator and foliar fertilizer at the lowest doses significantly improved contents of total soluble solids and sucrose, as well as productive yield of fermentable sugars. Jasmonic acid could promote growth and development by triggering either non-enzymatic or enzymatic mechanisms in the host self-defense system to support of external stresses, including herbivory by sugarcane-borer. K-phosphite could improve crop performance by not only releasing water-soluble inorganic ions like phosphorus and potash, but also by signaling synthesis of phytoalexins. Purity of cane juice and productivity of stalks sharply decreased, as the doses of the plant-resistance inducers increased. Jasmonic acid and k-phosphite at unbalanced endogenous levels could inhibit physiological ripening and specific enzymatical activity of alkaline invertases and sucrose-phosphate synthase, thereby influencing bioavailability of sucrose. The lower the sucrose content, the poorer the technological quality of sugarcane crop. The conclusion is, therefore, jasmonic acid and K-phosphite at lower doses prove to be effective induced resistance techniques to produce richer feedstock, with potential to produce ethanol fuel and refined sugar in sugar-energy plants.

The Role of Seaweed Extract, Mixure of Bacillus paramycoides and Azotobacter nigricans and Potassium Phosphite Foliar Spray in Growth and Productivity of Potato

“…Additionally, potassium phosphite produced potato tubers with higher values of N, P, K, starch and carbohydrtaes and that might be due to the role of phosphite in improving N mobilization resulting in a higher nutrient efficiency (Swarup et al, 2020). Furthermore, in sugarcane, K-phosphite probably improves soluble solids availability by releasing water-soluble inorganic ions like P and K, and signaling of phytoalexins synthesis and antimicrobial secondary metabolites which protect plants from pathogens (Moreira et al, 2019). In potato, Achary et al (2017) found that phosphite foliar treatment increased pectin content and polygalacturonase activity and induced the formation of a new chitinase isoform in tubers.…”

High production of jasmonic acid by Lasiodiplodia iranensis using solid‐state fermentation: Optimization and understanding

“…As environmentally friendly compounds, JA is expected to replace pesticides used in agriculture by helping plants to defend against the invasions of pathogens and pests [ 1,2 ] and can be used to improve plant stress resistance and fruit storage after ripening. [ 3–5 ] In addition, these compounds are highly important in the perfume industry owing to their jasmine fragrance and are typically used in high‐end perfumes, shampoos, and detergents [ 6 ] as well as in cigarettes and chewing gum. Moreover, JAs have shown anticancer activity against various types of tumors and thus have potential in the treatment of cancer‐related diseases.…”

Jasmonic acid biosynthesis by fungi: derivatives, first evidence on biochemical pathways and culture conditions for production

“…However, JAs play an important role in agriculture nowadays by regulating the defence of plants against pests and pathogens ( Gális et al, 2009 ; Gavin et al, 2012 ; Hawkins et al, 2007 ; Heil et al, 2001 ; Moreira et al, 2019 ; Rohwer & Erwin, 2008 ; Sanches et al, 2017 ; Stout, Zehnder & Baur, 2002 ; Wasternack, 2014 ). Their application seems to be in line with the principles of sustainable agriculture since they may be less aggressive to the environment than pesticides and mineral fertilizers ( Secatto, 2013 ).…”