The Induction of Biotic Stress-Resistance and Increasing Growth and Yield of Chili Pepper (Capsicum Annuum L.) Using Cow Bio-Urine and Tricho-Compost

Summary

This field trial evaluated the application of cow bio-urine and tricho-compost as amendments to growing media for chili pepper (Jambi local variety), examining their effects on biotic stress resistance and agronomic performance. At 60% cow bio-urine concentration combined with 25% tricho-compost, the treatment induced plant resistance to biotic stress (with only 13.3–16.0% of plants showing mild disease symptoms) whilst simultaneously improving growth metrics including productive branches, flower and fruit set numbers, and total fruit yield per plant. The authors suggest this combination represents an optimal formulation for simultaneously enhancing disease resistance and productivity in chili pepper cultivation.

Regional applicability

This study was conducted in Indonesia (Jambi province) under tropical conditions with the local Jambi chili pepper variety. Transferability to United Kingdom conditions is limited, as the UK's temperate climate, different pest and disease pressures, and absence of this particular cultivar mean direct application would require adaptation trials. However, the methodology for evaluating biotic-stress-inducing amendments and combined yield benefits could inform UK horticultural research into organic and biological soil amendments.

Key measures

Percentage of plants with disease symptoms, disease symptom classification, number of productive branches, number of flowers and fruit sets, total chlorophyll content, sugar content, total weight of fruit per plant

Outcomes reported

The study measured disease incidence, symptom severity, plant growth parameters (productive branches, flowers, fruit sets), chlorophyll content, sugar content, and total fruit weight per plant in chili pepper grown with varying concentrations of cow bio-urine and tricho-compost compositions.

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