“STUDIES ON THE EFFECT OF MICRONUTRIENTS AND THEIR SCHEDULE OF SPRAY ON GROWTH, YIELD AND QUALITY OF CARROT (Daucus carota L.) Cv. NEW KURODA UNDER SOUTHERN TELANGANA CONDITIONS”
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Date
2020-02-20
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SRI KONDA LAXMAN TELANGANA STATE HORTICULTURAL UNIVERSITY,MOJERLA
Abstract
The present investigation entitled “Studies on the effect of micronutrients
and their schedule of spray on growth, yield and quality of carrot (Daucus carota
L.) Cv. New Kuroda under Southern Telangana Conditions’’ was carried out
during the rabi season of the year 2018-19 at the College of Horticulture,
Mojerla.
The results related to growth parameters revealed that, among the
treatments, T6 treatment (zinc, iron, magnesium @ 0.5 % + copper @ 0.2 % +
boron @ 0.5 %) recorded significantly maximum plant height (51.97 cm),
number of leaves per plant (16.07), leaf length (37.53 cm) and fresh weight of
leaves (48.63 g) as compared to other treatments.
Between schedules of spray of micronutrients, micronutrients spray at 45
days after sowing registered significantly higher plant height (44.96 cm), more
number of leaves per plant (13.44), longer leaf length (31.91cm) and fresh weight
of leaves (44.05 g) than micronutrients spray at 30 days after sowing.
The interaction between treatments and schedule of spray had a significant
influence on plant height, number of leaves, leaf length and fresh weight of
leaves. Foliar application of T6 treatment (zinc, iron, magnesium each @ 0.5 % +
copper @ 0.2 % + boron @ 0.5 %) at 45 days after sowing recorded significantly
maximum plant height (52.40 cm), number of leaves per plant (16.53), leaf
length (38.07 cm) and maximum fresh weight of leaves (49.07 g).
All micronutrient concentration treatments differed significantly with
respect to yield parameters. T6 treatment (zinc, iron, magnesium each @ 0.5 % +
copper @ 0.2 % + boron @ 0.5 %) recorded minimum time taken to first harvest
(75.08 days), maximum root length (20.00 cm), root diameter (4.13 cm), fresh
weight of root (80.97 g), root yield per plot (4.53 kg) and root yield per hectare
(15.11 t) over other treatments.
Between schedules of spray of micronutrients, micronutrients spray at 45
days after sowing registered the least number of days taken to first harvest (88.05
days), higher root length (15.53 cm), root diameter (2.71 cm), fresh weight of
root (69.43 g), root yield per plot (2.93 kg) and root yield per hectare (9.76 t)
than micronutrients spray at 30 days after sowing.
Significant interaction effect was observed between treatments and
schedule of spray on yield parameters. Foliar application of T6 treatment (zinc,
iron, magnesium each @ 0.5 % + copper @ 0.2 % + boron @ 0.5 %) at 45 days
after sowing recorded minimum number of days taken to first harvest (74.17
days), maximum root length (20.60 cm), root diameter (4.40 cm), fresh weight of
root (82.13 g), root yield per plot (4.80 kg) and root yield per hectare (16.00 t ).
The results pertaining to quality parameters indicated that higher
percentage of total soluble solids (12.85 %), ascorbic acid content (6.57mg100-g),
carotene content (4.25 mg 100-g), cortex to core ratio (0.94 %), lower percentage
of cracked roots (0.22 %) and forked roots (3.30 %) were recorded in T6
treatment (zinc, iron, magnesium @ 0.5 % + copper @ 0.2 % + boron @ 0.5 %).
Between schedules of spray of micronutrients, micronutrients spray at 45
days after sowing recorded significantly maximum percentage of total soluble
solids (10.17 %), ascorbic acid content (4.75 mg100 -g), carotene content (3.11
mg 100-g), cortex to core ratio (0.61 %), minimum percentage of cracked roots
(3.87 %) and forked roots (5.67 %) over micronutrients spray at 30 days after
sowing.
The interaction between micronutrient concentration treatments and schedule
of spray had a significant influence on quality parameters. Foliar application of
T6 treatment (zinc, iron, magnesium each @ 0.5 % + copper @ 0.2 % + boron @
0.5 %) at 45 days after sowing registered significantly higher percentage of total
soluble solids (13.07 %), ascorbic acid content (6.83 mg100-g), carotene content
(4.33 mg100-g), cortex to core ratio (0.97 %), lower percentage of cracked roots
(0.13 %) and forked roots (3.10 %).
The data on economics of micronutrient concentration treatments showed
that, among the treatments, T6 treatment (zinc, iron, magnesium @ 0.5 % +
copper @ 0.2 % + boron @ 0.5 %) recorded higher gross returns (₹ 3, 02,200),
net returns (₹ 2, 38,843) and best benefit cost ratio (3.77) over other treatments.
Description
“STUDIES ON THE EFFECT OF MICRONUTRIENTS AND THEIR SCHEDULE OF SPRAY ON GROWTH, YIELD AND QUALITY OF CARROT (Daucus carota L.) Cv. NEW KURODA UNDER SOUTHERN TELANGANA CONDITIONS”