Comparative efficacy of organic media and mycorrhizae in enhancing the growth and buddability of rough lemon (Citrus jambhiri Lush.)
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Date
2019
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Punjab Agricultural University, Ludhiana
Abstract
The study entitled “Comparative efficacy of organic media and mycorrhizae in enhancing the
growth and buddability of rough lemon (Citrus jambhiri Lush.)” were carried out during
2018-2019 in College Orchard, Department of Fruit Science, Punjab Agricultural University,
Ludhiana. Five different growing media (Soil, Soil + FYM, Soil + FYM + Cocopeat, Soil +
Biogas slurry and Soil + Vermicompost) used in citrus nursery were fortified with
bioinoculants (Glomus mossae, Gigaspora and Acaulospora, Consortium of AM fungi and
Trichoderma sp.) and uninoculated was kept as control. Among all growing media, soil +
biogas slurry resulted in significantly superior shoot and root growth of rough lemon
seedlings as compared to other four media. Among bioinoculants, the maximum seedling
growth was observed with consortium of AM fungi, followed by Gigaspora and Acaulospora.
Soil + Biogas slurry enriched with consortium of AM fungi recorded maximum seedling
height, diameter, number of leaves, plant biomass, length and diameter of tap root, number of
secondary roots and microbial count. The highest T-budding success and minimum days
required for bud sprout were registered for the Kinnow budlings raised in soil and biogas
slurry fortified with consortium of AM fungi. The same treatment combination recorded the
m aximum sprout length, diameter, leaf area, number of leaves, N, K, Fe and Mn in leaves of
Kinnow budlings, whereas P concentration in roots was found to be the highest in soil +
vermicompost in combination with consortium of AM fungi. The present study concluded
that the growth and nutrient uptake of rough lemon seedlings and bud uptake of Kinnow
budlings was significantly enhanced when raised in organic growing media containing soil
and biogas slurry (2:1) enriched with consortium of AM fungi. The treatment combination
can be used as the best alternative for getting healthy and quality rough lemon nursery plants
with improved growth and bud uptake.
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