Genotypic differences in root architecture and physiological characteristics in mango (Mangifera indica) under drought

SANDEEP; A K DUBEY; NIMISHA SHARMA; O P AWASTHI; R M SHARMA; ANIL DAHUJA

doi:10.56093/ijas.v93i8.138850

Authors

SANDEEP ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India
A K DUBEY ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India
NIMISHA SHARMA ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India
O P AWASTHI ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India
R M SHARMA ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India
ANIL DAHUJA ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India

https://doi.org/10.56093/ijas.v93i8.138850

Keywords:

Coefficient correlation, Drought, Mango, Moisture stress

Abstract

An experiment was conducted at the research farm of ICAR-Indian Agricultural Research Institute, New Delhi during 2020 and 2021 to study the genotypic differences in root architecture and physiological characteristics in mango (Mangifera indica L.) under drought. One-year-old polyembryonic 7 mango rootstock genotypes were exposed to normal irrigation and drought conditions for 24 days. The drought-induced increased total plant weight and dry weight in Kurukkan. The shoot dry weight decreased in all genotypes ranging from 5.13% in OLP-Z-6/1 to 81.82% in Kurukkan. There was a lesser reduction in membrane stability index in Kurukkan and K-5, stomata count in Kurukkan, Olour and OPK-3-7/12 at the end of the drought period. Root surface area increased under drought in Kurukkan, while it decreased more in K-5. Correlation studies confirmed a strong positive relationship between relative water content (RWC) and membrane stability index (MSI), number of stomata (SC), number of leaves (NL), root tips (RT) and root forks (NRF); MSI and number of root tips (NRT); dry weight of the whole plant and root surface area (RSA); the dry weight of roots and root volume (RV), RSA, and plant height (Ph); root length (RL) and RSA, RT, and NRF. Kurukkan was identified as drought-tolerant based on a higher SC, RWC, RV, RSA, dry mass, NRT and NRF. Results indicated that the root indices offer a promising strategy for the screening of drought-tolerant mango genotypes.

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References

Anonymous. 2015. UN Department of Economic and Social Affairs, United Nations website, United Nations, https://www.un.org/waterforlifedecade/index.shtml

Arsenault J L, Poulcur S, Messier C and Guay R. 1995. WinRHlZO™, a root-measuring system with a unique overlap correction method. Horticulture Science 30(4): 906D–06. DOI: https://doi.org/10.21273/HORTSCI.30.4.906D

Barrs H D and Weatherley P E. 1962. A re-examination of the relative turgidity technique for estimating water deficits in leaves. Australian Journal of Biological Sciences 15(3): 413–28. DOI: https://doi.org/10.1071/BI9620413

Bolat I, Dikilitas M, Ercisli S, Ikinci A and Tonkaz T. 2014. The effect of water stress on some morphological, physiological, and biochemical characteristics and bud success on apple and quince rootstocks. Scientific World 2014: 769–32. DOI: https://doi.org/10.1155/2014/769732

Bray E A, Bailey-Serres J and Weretilnyk E. 2000. Responses to abiotic stress. Biochemistry and Molecular Biology of Plants, pp. 1158–1203. American Society of Plant Physiology, Rockville USA.

Chaves M M and Oliveira M M. 2004. Mechanisms underlying plant resilience to water deficits: Prospects for water-saving agriculture. Journal of Experimental Botany 55: 2365–84. DOI: https://doi.org/10.1093/jxb/erh269

Geng D L, Lu L Y, Yan, M J, Shen X X, Jiang L J, Li H Y and Guan Q M. 2019. Physiological and transcriptomic analyses of roots from Malus sieversii under drought stress. Journal of Integrative Agriculture 18(6): 1280–94. DOI: https://doi.org/10.1016/S2095-3119(19)62571-2

Jombart T. 2008. Adegenet: An R package for the multivariate analysis of genetic markers. Bioinformatics 24: 1403–05. DOI: https://doi.org/10.1093/bioinformatics/btn129

Khoyerdi F F, Shamshiri M H and Estaji A. 2016. Changes in some physiological and osmotic parameters of several pistachio genotypes under drought stress. Scientia Horticulturae 198: 44–51. DOI: https://doi.org/10.1016/j.scienta.2015.11.028

Lozano-Montana P A, Sarmiento F, Mejia-Sequera L M, Alvarez- Florez F and Melgarejo L M.2021. Physiological, biochemical and transcriptional responses of Passiflora edulis Sims f. edulis under progressive drought stress. Scientia Horticulturae 275: 109655. DOI: https://doi.org/10.1016/j.scienta.2020.109655

Luvaha E, Netondo G W and Ouma G. 2010. Effect of water deficit on the physiological and morphological characteristics of Mango (Mangifera indica) rootstock seedlings. American Journal of Plant Physiology 5(1): 7–21. DOI: https://doi.org/10.3923/ajpp.2010.7.21

Sairam R K. 1994. Effect of moisture stress on physiological activities of two contrasting wheat genotypes. Indian Journal of Experimental Biology 32: 594–97.

Vetterlein D, Phalempin M, Lippold E, Schluter S, Schreiter S, Ahmed M A, Wang S, Liang D, Li C, Hao Y, Ma F and Shu H.2012. Influence of drought stress on the cellular ultrastructure and antioxidant system in leaves of drought-tolerant and drought-sensitive apple rootstocks. Plant physiology and Biochemistry 51: 81–89. DOI: https://doi.org/10.1016/j.plaphy.2011.10.014

Wang, S, Liang D, Li C, Hao Y, Ma F and Shu H.2012. Influence of drought stress on the cellular ultrastructure and antioxidant system in leaves of drought-tolerant and drought-sensitive apple rootstocks. Plant Physiology and Biochemistry 51: 81–89. DOI: https://doi.org/10.1016/j.plaphy.2011.10.014

Zahid Z, Khan M K R, Hameed A, Akhtar M, Ditta A, Hassan H M and Farid G. 2021. Dissection of drought tolerance in upland cotton through morpho-physiological and biochemical traits at seedling stage. Frontiers in Plant Science 12: 627107. DOI: https://doi.org/10.3389/fpls.2021.627107