EFFECT OF RHIZOSPHERE’S SOIL OF DIFFERENT TREE SPECIES ON GROWTH AND DEVELOPMENT OF JACKFRUIT (Artocarpus heterophyllus L.) cv. CHANDRA
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Date
2024
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College of Horticulture and Forestry, Jhalawar
Abstract
A field experiment entitled “Effect of rhizosphere‟s soil of different tree species on
growth and development of Jackfruit (Artocarpus heterophyllus L.) cv. Chandra” was
conducted during the year 2023-24, at the Instructional Farm, Department of Fruit Science,
College of Horticulture and Forestry, Jhalawar. The experiment consisted of 8 treatments,
viz. T0 (control), T1 (soil under banyan tree canopy), T2 (soil under palash tree canopy), T3
(soil under babul tree canopy), T4 (soil under jamun tree canopy), T5 (soil under tamarind tree
canopy), T6 (soil under neem tree canopy), and T7 (soil under mandarin tree canopy). The
experiment was laid out in Randomized Block Design with three replications.
Among different treatments, T1 treatment (soil under banyan tree canopy) was found
significantly superior over other treatments with respect to growth and physiological
parameters such as maximum height of plant (118.27 cm), rootstock girth (24.69 mm), scion
girth (24.51 mm), number of leaves per plant (65.33), number of shoots per plant (17.67),
length of internode (2.38 cm), number of nodes per plant (58.00), leaf petiole length (1.85
cm), leaf area index (2.01), chlorophylla (1.85 mg g-1), chlorophyllb (0.99 mg g-1), total
chlorophyll (2.84 mg g-1), stomatal conductance (7.25 mmol m-2 s-1), relative water content
(87.85%), membrane stability (28.27%) and minimum proline content (0.20 μmol g-1) in
leaves at the time of final observation during March, 2024.
The result further indicated that the application of treatment T1 (soil under banyan tree
canopy) was the most effective in increasing the soil parameters like available N2 (329.33 kg
ha-1), available P2O5 (28.33 kg ha-1), available K2O (294.33 kg ha-1), porosity (47.84%) and
microbial population (bacteria 9.34 x 106 cfu g-1 and fungi 7.51 x 104 cfu g-1). It also reduced
the soil pH (7.14), electrical conductivity (0.22 dS m-1), bulk density (1.13 g cm-3) and
particle density (2.32 g cm-3). Thus, the T1 (soil under banyan tree canopy) treatment
significantly improve the all soil parameters.
Overall, T1 (soil under banyan tree canopy) treatment was adjudged better in respect
to overall growth and development of jackfruit vis-à-vis soil improvement.