Use of Agro‐industrial Organic Compound: Yield and Nutrient Absorption in Wheat

Silva, Maria Anita Gonçalves da; Roque, Salete Aparecida Tondato; Muniz, Antônio Saraiva; Matta, José de Deus Viana da; Costa, Antônio Carlos Saraiva da

doi:10.1080/00103620802003989

Cited by 3 publications

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Phenol‐containing organic substances stimulate phenylpropanoid metabolism in Zea mays

Ertani

Schiavon

Altissimo³

et al. 2011

Z. Pflanzenernähr. Bodenk.

View full text Add to dashboard Cite

Intensive land use may affect soil properties (e.g., decreased soil organic matter [SOM] content) and, consequently, reduce crop yields considerably. One way of counteracting the loss of SOM and stimulating plant productivity could be the use of organic residues from agro‐industrial processes as bioactive products. The present study was focused on the possible effects of phenol‐containing organic substances derived from agro‐industrial by‐products on maize (Zea mays L.) metabolism in a pot experiment. Plants were grown for 12 d in a nutrient solution in the absence (control) or in the presence of either a cellulosolitic dry apple hydrolyzate (AP) or a dry blueberry cool extract (BB) applied at two rates (0.1 and 1 mL L–1). Both products increased root and leaf biomass and led to higher concentrations of macronutrients in the plant tissue. AP and BB also had a positive impact on nitrogen (N) metabolism stimulating the activity and gene expression of phenylalanine ammonia‐lyase, a key enzyme of the phenylpropanoid pathway. Furthermore, both products increased leaf concentrations of phenols (+ 28% and 49% for AP and BB, respectively) and flavonoids (+ 22% and 25% for AP and BB, respectively). From our results it can be assumed that residues from agro‐industry may be successfully used as bioactive products in agriculture to increase plant yield and resistance to stress conditions.

show abstract