Variability analysis in tomato (Solanum lycopersicum L.) crosses under drought stress
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Abstract
Climate change in recent years has affected crop production to a greater extent. To overcome these effects, climate-resilient varieties are needed. Tomato is a versatile crop. However, its growth is hindered when it is affected by drought stress. Hence, a variability analysis of tomatoes under drought stress was carried out at Horticulture College and Research Institute, Coimbatore. Variability studies revealed that all the crosses for all parameters exhibited higher phenotypic coefficient of variation (PCV) values than genotypic coefficient of variation (GCV), indicating the influence of environmental effects. For all the crosses, viz., EC169966 × LE118, EC177824 × LE27 and Arka Ashish × LE27, high PCV and high GCV were recorded for characteristics including fruit number per plant, yield per plant, lycopene content and peroxidase activity. Characteristics such as the number of flowers per cluster, fruit number per plant, individual weight of fruit, yield per plant, relative water content, proline content, peroxidase activity and ascorbic acid content recorded higher heritability coupled with high genetic advance as a percentage of the mean (GAM). Thus, direct selection of the above parameters improves drought-tolerant breeding programs in tomato.
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Tomato, drought, PCV, GCV, GAM
Buhroy, S. (2017). Studies on development of F1 hybrids for drought tolerance with high yield and quality in tomato (Solanum Lycopersicum L.). Ph.D. thesis, Department of Vegetable Crops, Tamil Nadu Agricultural University.
Dar, R. A. & Sharma, J. P. (2011). Genetic variability studies of yield and quality traits in tomato (Solanum lycopersicum L.). International Journal of Plant Breeding and Genetics, 5(2), 168-174.
Hao, S., Cao, H., Wang, H. & Pan, X. (2019). Effects of water stress at different growth stages on comprehensive fruit quality and yield in different bunches of tomatoes in greenhouses. International Journal of Agricultural and Biological Engineering, 12(3), 67-76.
Hassan, Z., Ul-Allah, S., Khan, A. A., Shahzad, U., Khurshid, M., Bakhsh, A. ... & Manzoor, Z. (2021). Phenotypic characterization of exotic tomato germplasm: An excellent breeding resource. Plos one, 16(6), e0253557.
Ilakiya, T., Premalakshmi, V., Arumugam, T. & Sivakumar, T. (2019). Screening of tomato (Solanum lycopersicum L.) hybrids with their parents for various growth related parameters under drought stress. Journal of Pharmacognosy and Phytochemistry, 8(3), 3845-3848.
Jangid, K. K. & Dwivedi, P. (2016). Physiological responses of drought stress in tomato: a review. International Journal of Agriculture, Environment and Biotechnology, 9(1), 53-61.
Kherwa, R.S., Solankey, S.S., Akhtar S., Kumar, A. & Kumari. R (2018). Genetic Studies of Wild and Cultivated Tomato (Solanum lycopersicum L.) Genotypes. International Jornal of Current Microbiology and Applied Science (Special Issue-7):2568-2574.
Kumar, V., Nandan, R., Srivastava, K., Sharma, S. K., Kumar, R. & Kumar, A. (2013). Genetic parameters and correlation study for yield and quality traits in tomato (Solanum lycopersicum L.). Plant Archives, 13(1), 463-467.
Mamatha, N.C, Lingaiah, H.B. & Jyoti. H. K. (2017). Variability studies in F2 population of tomato (Solanum lycopersicum L.) for yield and other economic traits. International Journal of Pure and Applied Bioscience 5 (3),1093-1096.
Panchbhaiya, A., Singh, D. K., Verma, P., & Mallesh, S. (2018). Assessment of genetic variability in tomato (Solanum lycopersicum L.) under polyhouse condition for fruit quality and biochemical traits. International Journal of Chemical Studies, 6(6), 245-248.
Patane, C., Scordia, D., Testa, G., & Cosentino, S. L. (2016). Physiological screening for drought tolerance in Mediterranean long-storage tomato. Plant Science, 249, 25-34.
Seleiman, M. F., Al-Suhaibani, N., Ali, N., Akmal, M., Alotaibi, M., Refay, Y., ... & Battaglia, M. L. (2021). Drought stress impacts on plants and different approaches to alleviate its adverse effects. Plants, 10(2), 259.
Shiksha & Sharma, P. (2018). Assessment of Cherry Tomato Cultivars (Solanum lycopersicum var. cerasiforme) for Genetic Variability under Protected Environment. International Jornal of Current Microbiology and Applied Science 7 (11), 56-64.
Somraj, B., Reddy, R. V. S. K., Reddy, K. R., Saidaiah, P. & Reddy, M. T. (2017). Genetic variability, heritability and genetic advance for yield and quality attributes in heat tolerant exotic lines of tomato (Solanum lycopersicum L.). Journal of Pharmacognosy and Phytochemistry, 6(4), 1956-1960.
Sureshkumara, B., Lingaiah, H.B. Venugopalan, R. & Shivapriya. M. (2018). Genetic variability studies for yield and quality traits in tomato (Solanum lycopersicum L.). International Journal of Pure and Applied Bioscience. 6 (4):462-467.
Zairi, A., El Amami, H., Slatni, A., Pereira, L. S., Rodrigues, P. N. & Machado, T. (2003). Coping with drought: deficit irrigation strategies for cereals and field horticultural crops in Central Tunisia. In Tools for drought mitigation in Mediterranean regions (pp. 181-201). Springer, Dordrecht.
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