Tea [Camellia sinensis (l.) Kuntze] leaf compost ameliorates the adverse effects of salinity on growth of cluster beans (Cyamopsis tetragonoloba L.). | [Pakistan Journal of Botany • 2016]

Author(s):

1. Rafat Saeed: Department of Botany, Federal Urdu University for Science Technology (FUUAST), Karachi, Pakistan

2. Paras Shah: Department of Botany, Federal Urdu University for Science Technology (FUUAST), Karachi, Pakistan

3. Ameer Ahmed Mirbahar: State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China

4. Bushreen Jahan: Department of Botany, Federal Urdu University for Science Technology (FUUAST), Karachi, Pakistan

5. Naeem Ahmed: Biosaline Research Laboratory, Department of Botany, University of Karachi, Pakistan

6. Mohammad Azeem: Biosaline Research Laboratory, Department of Botany, University of Karachi, Pakistan

7. Rafiq Ahmad: Biosaline Research Laboratory, Department of Botany, University of Karachi, Pakistan

Abstract:

The pot experiment was carried out to evaluate the effect of tea compost on plant growth under salinity. Plants were grown in clay pots filled with sandy loam soil and irrigated by saline water (0, 50 and 100mM NaCl) with and without tea compost amendments. Soil evapotranspiration (ET), vegetative and reproductive growth and biochemical parameters were studied in this experiment. ET rate was increased with increasing salinity, whereas, it decreased with application of tea compost under all salinity. Vegetative (shoot height, number of leaves, fresh and dry biomass) and reproductive (number of seeds per plant) growth significantly decline under increasing salinity levels. Tea compost treatment helped in improving all these parameters. Total photosynthetic pigments (chlorophyll a, B, carotenoids and total chlorophyll content) showed reduction under raising salinity levels, while betterment was recorded with application of tea compost. Organic solutes (soluble sugars, proteins, free amino acids and phenolic content) increased with increasing salinity (50-100mM NaCl). Increased soluble sugars were found with tea compost treatment under non-saline control and decreased in salinity. Soluble proteins, amino acids and phenolic content increased with application of tea compost under both control and salinity. It is concluded that tea compost treatment is found to cope with salinity stress and improve plant growth and biochemical parameters by diluting the hazardous effects of salinity.

Page(s): 495-501

DOI: DOI not available

Published: Journal: Pakistan Journal of Botany, Volume: 48, Issue: 2, Year: 2016

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