IMPACT OF SEED PRIMING WITH CHEMICALS AND MICROBIAL INOCULANTS ON SEED QUALITY, FIELD PERFORMANCE AND YIELD OF CHICKPEA (Cicer arietinum L.)
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Date
2024-05-16
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ACHARYA N G RANGA AGRICULTURAL UNIVERSITY
Abstract
The present investigation entitled “Impact of seed priming with chemicals and
microbial inoculants on seed quality, field performance and yield of chickpea (Cicer
arietinum L.)” was carried out at Agricultural Research Station, Jangamaheswarapuram,
Gurazala (field studies) and Central Instrumentation Cell, Agricultural College, Bapatla
(laboratory studies), Andhra Pradesh during 2021-22. The experimental material
consists of two genotypes, five treatments and ten interactions to know the effect of
various priming agents and microbial inoculants on the seed quality of chickpea were
shown in a Factorial Completely Randomized Design (FCRD) with four replications
(seed quality characters) and three replications (biochemical characters). To know the
influence of the effective combination of priming agents and microbial inoculants on
seed quality, field performance and yield of chickpea consisting of two genotypes,
eleven treatments and twenty two interactions were shown in a Factorial Randomized
Block Design (FRBD) with three replications (field studies).
Effect of various priming agents on seed quality of chickpea was showed highly
significant for most of the characteristics except germination, electrical conductivity
and moisture content. Variance due to the biochemical character was also found
significant for the total soluble sugars. The genotype NBeG-452 showed superior per se
performance over NBeG-119 for concerning seed quality characters whereas for
biochemical characters NBeG-119 showed the highest per se over NBeG-452. Out of
five treatments, T5 showed the highest per se performance in all seed quality parameters
(except EC) and biochemical characters (except MDA) and also exceeded over
treatment grand mean of all characters as mentioned above. For genotype x treatment
interactions, seed of desi which treated with 100 ppm of GA3 (G1T5) was found to be
superior over other interactions for seed quality characters like shoot length, root length,
seedling length, seedling vigour index and field
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emergence. For biochemical character total soluble sugars were recorded higher mean
value with seed of NBeG-119 treated with 100 ppm of GA3 (G2T5).
The impact of microbial inoculants on seed quality of chickpea was found to be
highly significant for all the characters except germination and electrical conductivity.
Variance due to priming with microbial inoculants was found non-significant for all the
biochemical characters. Out of two genotypes (NBeG-452 and NBeG-119), NBeG-452
was found to be superior over NBeG-119 with respect to seed quality parameters
whereas for biochemical characters NBeG-119 was superior over NBeG-452 for TSS,
protein and MDA. Among five treatments, 20% of Rhizobium sps (T3) was found
statistically superior for all seed quality parameters (except EC) and biochemical
characters (amylase activity) over all the treatments and their grand mean value. Among
interactions, seed of NBeG-452 treated with 20% of Rhizobium sps (G1T3) recorded
numerically superior for all seed quality parameters except germination and EC and also
higher over the grand mean value of all parameters whereas seed of NBeG-119 treated
with 20% of PSB (G2T5) exhibited higher TSS over interactions for the biochemical
character.
Combination of priming agents and microbial inoculants on field performance
and yield of chickpea were found highly significant for most of the characters except
days to 50% flowering. Between two genotypes, NBeG-452 was found
numerically superior over NBeG-119 for all the characters except days to 50%
flowering, seed yield per plant and 100 seed weight. NBeG-119 was found more
susceptible to wilt & root rot. Out of eleven treatments, 100 ppm GA3 + 20% of
Rhizobium sps (T5) performed better for the traits PPPM @ 30 DAS and time of harvest,
number of pods per plant, seed yield per plant, seed yield per plot and 100 seed weight.
In the case of incidence of disease (%), combination of 100 ppm GA3 with 20% of
Trichoderma viridae (T8) was recorded lowest mean incidence (wilt and root rot) over
the other treatments. Out of twenty two interactions, seed of NBeG-452 treated with
combination of 100 ppm GA3 with 20% of Rhizobium sps (G1T5) was found to be
superior for field parameters like PPPM @ 30 DAS, seed yield per plant, number of
pods per plant and seed yield per plot over the other interactions while seed of NBeG 119 treated with combination of 100 ppm GA3 with 20% of Rhizobium sps (G2T5) was
recorded as highest per se performance for the trait of 100 seed weight and seed of
NBeG-452 treated with combination of 100 ppm GA3 with 20% of Trichoderma viridae
(G1T8) was recorded lowest mean incidence of root rot & wilt over the other interactions
but statistically on par with seed of NBeG-452 treated with combination of KH2PO4
with Trichoderma viridae (G1T6) with respect to the incidence of root rot per cent.
Variance due to treatment showed highly significant variation in all seed quality
parameters. NBeG-452 was found to be superior over NBeG-119 in seed quality
parameters while in the case of biochemical studies NBeG-119 was found superior over
NBeG-452 for TSS, protein and MDA. Among eleven treatments, combination of ppm
GA3 with Rhizobium sps showed a higher mean value in all seed quality parameters
(except EC) and biochemical characters (except MDA) and also exceeded over
treatments grand mean. Out of twenty two interactions, seed of NBeG-452 treated with
combination of GA3 with Rhizobium sps (G1T5) was found to be superior for all
characters except germination, which was recorded higher with seed of desi treated with
combination of GA3 with Trichoderma viridae (G1T8). While in the case of biochemical
studies seed of kabuli treated with combination of GA3 with Rhizobium sps (G2T5)
recorded significantly higher soluble sugars over other interactions