STUDIES ON BIO-SYNTHESIZED NANOMICRONUTRIENTS ON GROWTH, YIELD AND QUALITY OF CAPSICUM (Capsicum annuum L. var. grossum) cv. INDRA GROWN UNDER SHADENET
Loading...
Date
2023-12-29
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
The experiment entitled “Studies on bio-synthesized nano-micronutrients on
growth, yield and quality of capsicum (Capsicum annuum L. var. grossum) cv. Indra
grown under shadenet” was conducted at the New Orchard, MARS, University of
Agricultural sciences, Raichur during October 2019 to March 2020. The experiment was laid
out in Randomized Block Design with three replications and thirteen treatments consisting
the combination of inorganic micronutrients and bio-synthesized nano-micronutrients at
different concentrations. Among the various treatments, the nano iron + nano zinc @ 100
ppm each, recorded the highest plant height (69.86 cm), number of branches per plant
(13.80), leaf area (92.59 cm2), leaf area index (55.00), total leaf chlorophyll content
(2.13 mg/g of tissue). Days to first flowering (33.27), days to 50 % flowering (39.33), highest
number of flowers per plant (109.88), fruiting period (86.35 days), fruit-set (80.74 %), fruit
length (8.69 cm), fruit width (6.26 cm), average fruit weight (159 g), days to first harvest
(59.13), fruit yield per plant (2.33 kg), fruit yield per plot (117.76 kg) and fruit yield per
hectare (92.36 t) were also found highest in the same treatment. The postharvest studies like
shelflife (13 days), physiological loss in weight (12.72 %), pericarp thickness (4.00 mm),
ascorbic acid (176.13 mg/g of fruit pulp), total nitrogen (4.48 %), total phosphorous (0.35 %),
total potassium (4.73 %), total zinc and total iron contents (94.88 ppm and 166.35 ppm,
respectively), estimation of iron and zinc in fruits (Fe- 1.58 mg, Zn- 1.14 mg), highest benefit
cost ratio (2.26) were found to be best with the treatment of nano iron + nano zinc @ 100
ppm each compared to other treatments. It was observed that nano iron + nano zinc @ 100
ppm each enhanced the growth, yield and quality of capsicum compared to other treatments.