Effect of different levels of salinity on young plants of guava
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Date
2023-03
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CCSHAU, Hisar
Abstract
The experiment entitled "Effect of different levels of salinity on young plants of guava" was carried out in pots at screen house, Department of Horticulture CCS HAU, Hisar during the year 2020 to 2021. The experiment was conducted in Factorial Completely Randomized Block Design (FCRD) i.e., factor A as four guava cultivars were selected i.e., Hisar Safeda, Hisar Surkha, Allahabad Safeda and Lucknow 49; and factor B as nine different chloride salinity (EC) levels (dSm-1) -(Control 0.07 dSm-1, 1.0 dSm-1, 2.0 dSm-1, 3.0 dSm-1, 4.0 dSm-1, 5.0 dSm-1, 6.0 dSm-1, 7.0 dSm-1 and 8.0 dSm-1) and replicated 5 times with one plant per replicationof each cultivar. The leaf number, plant height (cm), stem diameter (cm), internodal distance (mm) and root length (cm) (63.96, 107.92, 14.39, 33.73 and 18.90, respectively) were recorded significant under L-49 cultivar at 31st December among all the 4 cultivars. The significantly lower number of affected leaves per plant and number of dead leaves per plant as compared to other cultivars (42.31 and 5.56) was recorded in L-49. Among different salinity levels at 31st December control 0.07 dSm-1 recorded significantly more leaf number, plant height (cm), root length (cm), shoot length (cm) and dry weight of plant (g) (81.20, 116.28, 19.32, 97.29 and 34.36, respectively). Similarly, significantly lower number of affected leaves per plant and number of dead leaves per plant were in control 0.07 dSm-1 as compared to other salinity levels (25.40 and 2.25). The higher nitrogen, phosphorous, potassium contents in plant and soil were recorded in L-49 cultivar and control 0.07dSm-1 as compared to other treatments.Hence it could be concluded that L-49 cultivar expressed better tolerance at various chloride salinity levels as compared to other varieties whereas, control 0.07 dSm-1 treatment showed better results for different characters observed.