Influence of chemical and bio-fertilizers on quality attributes of strawberry cv. Winter Dawn

Abstract

The present study was conducted during two consecutive winter seasons of 2023-24 and 2024-
25 at the Department of Agriculture, IIAST, Integral University, Lucknow, Uttar Pradesh, India,
to assess the impact of chemical and bio-fertilizer applications on strawberry fruits. The
experiment consisted of 10 treatments in a randomized complete block design with 3 replications.
Results from present investigation shown that strawberry plants grown under RDF +
Vermicompost (3 t/ha) + Azotobacter (5 kg/ha) produced significantly higher total soluble solids
(7.83%), TSS: acid ratio (11.51), vitamin C (56.85 mg/100 g), total anthocyanin (49.36 mg/100
g), non-reducing sugar (2.71%), reducing sugar (5.49%), total sugars (8.20%), and the lowest
acidity (0.66%). This was followed by RDF + Vermicompost (3 t/ha) + PSB (5 kg/ha). In contrast,
the lowest total soluble solids (4.93%), TSS: acid ratio (5.98), vitamin C (40.31 mg/100 g), total
anthocyanin (40.37 mg/100 g), non-reducing sugar (1.97%), reducing sugar (3.68%), total sugars
(5.65%), and the highest acidity (0.83%) were recorded in the control treatment. It can be
concluded from the present investigation that the application of RDF + Vermicompost (3 t/ha) +
Azotobacter (5 kg/ha) significantly improved the qualitative attributes of strawberry fruits
compared to the control.