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Salinity-induced changes in growth morphology, gas exchange and leaf abscisic acid level of fifteen polyembryonic mango (Mangifera indica L.) genotypes

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Title Salinity-induced changes in growth morphology, gas exchange and leaf abscisic acid level of fifteen polyembryonic mango (Mangifera indica L.) genotypes
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Creator Nimbolkar PK, Kurian RM, Upreti KK, Laxman RH, LR Varalakshmi
 
Subject Mangifera indica L; salinity stress; morphological changes; photosynthesis; gas exchange; salt tolerance; stomata
 
Description Not Available
Mango is a commercial fruit crop in different parts of the tropical and subtropical world. Commercially important monoembryonic varieties are propagated through grafting onto rootstock seedlings of polyembryonic genotypes that plays an important role in sustained growth and production. Use of salt tolerant genotypes as rootstock to combat the adverse effect of salinity could be helpful for commercial mango production in salt affected areas. Current study was carried out to elucidate the effect of salinity stress induced by NaCl + CaCl2 (1:1 w/w) at 0, 25, 50 and 100 mM concentrations in irrigation water on candidate polyembryonic mango genotypes namely EC-95862, Bappakkai, Vellaikolamban, Nekkare, Turpentine, Muvandan, Kurukkan, Kensington, Olour, Manipur, Deorakhio, Vattam, Mylepelian, Sabre and Kitchener. We studied the morpho-physiological changes of these seedlings under salinity induced stress for determining their relative tolerance by assessing growth parameters such as plant height, number of leaves, leaf area, intermodal length, fresh weight of shoot, fresh weight of root, dry weight of shoot, dry weight of root, stem diameter and physiological parameters like photosynthetic rate, transpiration rate, stomatal conductance, number of stomata and stomata length and width, in addition to ABA content in leaves. Our results clarifies that the polyembryonic genotypes Turpentine, Deorakhio Olour and Bappakkai showed less reduction in terms of growth and better maintenance of gas exchange status under higher level of salinity
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Date 2019-05-22T07:13:18Z
2019-05-22T07:13:18Z
2018-11-23
 
Type Journal
 
Identifier Nimbolkar, P. K., Kurian, R. M., Upreti, K. K., Laxman, R. H., & Varalakshmi, L. R. (2018). Salinity-induced changes in growth morphology, gas exchange and leaf abscisic acid level of fifteen polyembryonic mango (Mangifera indica L.) genotypes. Israel Journal of Plant Sciences, 1(aop), 1-12.
0792-9978
http://krishi.icar.gov.in/jspui/handle/123456789/19800
 
Language English
 
Relation Not Available;
 
Publisher Israel Journal of Plant Sciences