EFFECT OF NATURAL LIQUID ORGANICS ON PHYSIOLOGICAL EFFICIENCY, YIELD AND SEED QUALITY ATTRIBUTES OF BLACKGRAM
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Date
2018
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Publisher
Acharya N.G. Ranga Agricultural University
Abstract
Experiments were conducted at S.V. Agricultural College, Tirupati
during kharif, 2017 to evaluate efficacy of natural liquid organics on
physiological efficiency, yield and seed quality attributes in blackgram. A lab
experiment was conducted in complete randomised design with three seed
treatments viz., seed soaked in beejamrutha, water and a control was
maintained without seed soaking. The results revealed that beejamrutha seed
treatment recorded higher germination per cent, seedling vigour index and
amylase enzyme activity compared to seed soaked in water and control.
However, the coefficient of velocity of germination was recorded higher with
the seed soaked in water (31.21) compared to beejamrutha seed treatment
(24.88).
The field experiment laid out in randomised block design with 3
replications and 10 treatments where individual and combined application of
natural liquid organics was compared with inorganic treatments .Various
morpho-physiological, biochemical and growth parameters were recorded.
Inorganic treatments i.e. ANGRAU-ICM package and ANGRAU-ICM
package along with seed treatment with water, recorded significantly higher
morphological traits viz., Plant height, total drymatter accumulation, leaf area
and growth parameters like CGR, NAR, LAI, LAD, SLW and leaf
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biochemical constituents like free aminoacids, total phenols contents
compared to all other natural organic treatments. Among natural organics,
combined application of treatments i.e. seed treatment with beejamrutha,
basal application of ghanajeevamrita, foliar sprays of jeevamrutha @ 3% and
panchagavya @ 3% for every 10 days on crop found to be superior over their
individual applications. Among natural liquid organic foliar sprays
jeevamrutha @ 3% recorded significantly higher physiological efficiency and
yield than panchagavya.
Significantly higher seed yields of 1008.19 kg ha-1 and 962.39 kg ha-1
were recorded with ANGRAU-ICM package and ANGRAU-ICM package
with seed treatment with water in blackgram. However, combined application
of natural organics recorded on par seed yield (921.67 kg ha-1) with the two
inorganic treatments.
Post-harvest seed quality attributes viz., carbohydrate content, protein
content, total sugars did not differ significantly among different treatments.
Significantly higher catalase and superoxide dismutase activities of seed were
found in the treatments ANGRAU-ICM package and seed treatment with
water along with ANGRAU-ICM package followed by combined organic
application treatment. However, plant nitrogen content was recorded higher in
the treatment receiving combined use of natural organics followed by
inorganics at both 50 DAS and at harvest. Ghanajeevamruta soil application
also resulted in higher nitrogen content of the plant compared to other organic
treatments alone. Plant phosphorus and potassium content were recorded
higher in inorganic treatments (T1 and T2). Lowest, plant nitrogen, phosphorus
and potassium content of the plant was recorded in treatment receiving
beejamrutha seed treatment alone.
Among natural organics used, combined use of natural organics (T10)
recorded higher or on par morpho-physiological attributes and seed yields
compared to inorganic treatments (T1, T2) and observed significantly higher
values than their individual applications. It denotes that adopting integrated
method of natural organics application i.e. seed treatment with beejamrutha,
soil application of ghanajeevamritha and foliar spraying of jeevamruta
@ 3% and Panchagavya @ 3% for every 10 days can produce on par yields
compared to inorganic method of cultivation in blackgram.
Description
D5701
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