Rootstock mediated alteration in morphology and photosystem in sweet orange (Citrus sinensis) scion cv. Pusa Sharad under NaCl stress

IF 0.3 4区 农林科学 Q4 AGRICULTURE, MULTIDISCIPLINARY Indian Journal of Agricultural Sciences Pub Date : 2023-10-09 DOI:10.56093/ijas.v93i10.139420
KRIPA SHANKAR, O P AWASTHI, A K DUBEY, AWTAR SINGH, JAI PRAKASH, ARIA DOLATABADIAN
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Abstract

There is a dearth of rootstock studies on how salinity stress imparts tolerance to the scion cultivar in citrus [Citrus sinensis (L.) Osbeck]. The impact of sodium chloride on sweet orange cv. Pusa Sharad (PS) grafted on 11 different rootstocks i.e. Jatti khatti (JK), X–639 (X9), CRH–12 (C12), NRCC–1 (N1), NRCC–2 (N2), NRCC–3 (N3), NRCC–4 (N4), NRCC–5 (N5), Troyer citrange (TC), CRH–47 (C47) and Cleopatra mandarin (CM) was evaluated at the nursery unit of ICAR-Indian Agricultural Research Institute, New Delhi, during 2019–22. Irrigation water containing 30 and 60 mM of sodium chloride (NaCl) was applied to scion/rootstock combinations in comparison to control (without NaCl) till the onset of salt injury symptoms i.e. 42 days. Under salinity stress, the PS scion grafted onto CM, X9, C47, N1, and N3 rootstocks exhibited minimum reduction in the scion height, leaf area ratio, root to shoot ratio, total chlorophyll content, total carotenoid content, transpiration rate, photosynthesis rate, internal CO2 concentration and stomatal conductance as compared to PS scions grafted onto JK, C12, N2, N4, N5, and TC rootstocks under 60 mM NaCl stress. Results showed that specific rootstock can enhance salt-tolerance potential by increasing pigment content and strengthening the photosystem. PS scions grafted onto CM, C47, X9, N1, and N3 demonstrated greater NaCl tolerance compared to those grafted onto JK, C12, N2, N4, N5, and TC and hence recommended for areas having salinity level up to 60 mM.
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砧木介导的甜橙接穗形态和光系统变化。NaCl胁迫下的Pusa Sharad
关于盐胁迫对柑桔接穗品种耐受性的影响的砧木研究还很缺乏。等)。氯化钠对甜橙cv的影响。2019 - 2022年,在新德里icar -印度农业研究所苗圃单元对Pusa Sharad (PS)嫁接在Jatti khatti (JK)、X-639 (X9)、CRH-12 (C12)、NRCC-1 (N1)、NRCC-2 (N2)、NRCC-3 (N3)、NRCC-4 (N4)、NRCC-5 (N5)、Troyer citrange (TC)、CRH-47 (C47)和Cleopatra mandarin (CM) 11个不同砧木上进行了评价。在接穗/砧木组合上施用含有30和60 mM氯化钠(NaCl)的灌溉水,与对照(不施用NaCl)相比,直到出现盐害症状,即42天。在盐胁迫下,与JK、C12、N2、N4、N5和TC砧木相比,嫁接在CM、X9、C47、N1和N3砧木上的PS接穗高度、叶面积比、根冠比、总叶绿素含量、总类胡萝卜素含量、蒸腾速率、光合速率、内部CO2浓度和气孔导度的降低幅度最小。结果表明,特定砧木可以通过增加色素含量和增强光系统来增强耐盐潜力。与嫁接在JK、C12、N2、N4、N5和TC上的接穗相比,嫁接在CM、C47、X9、N1和N3上的接穗表现出更强的耐盐性,因此推荐用于盐度不超过60 mM的地区。
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来源期刊
Indian Journal of Agricultural Sciences
Indian Journal of Agricultural Sciences 农林科学-农业综合
CiteScore
0.80
自引率
25.00%
发文量
273
审稿时长
6 months
期刊介绍: The Indian Journal of Agricultural Sciences publishes papers concerned with the advancement of agriculture throughout the world. It publishes original scientific work related to strategic and applied studies in all aspects of agricultural science and exploited species, as well as reviews of scientific topics of current agricultural relevance. Specific topics of interest include (but are not confined to): genetic resources, all aspects of crop improvement,crop production,crop protection, physiology, modeling of crop systems, the scientific underpinning of agronomy, engineering solutions, decision support systems, land use, environmental impacts of agriculture and forestry, impacts of climate change, rural biodiversity, experimental design and statistical analysis, the application of new analytical and study methods (including molecular studies) and agricultural economics. The journal also publishes book reviews. Articles are accepted on the following broad disciplines: Agric. Engineering & Technology, Agric. Social & Economic Sci., Agronomy, Biometry, Biosciences, Cytology, Ecology, Environmental Sciences, Fertilization, Forestry , Genetics, Horticultural Sciences, Microbiology, Pest, Weed Control etc., Molecular Biology, Plant Pathology, Plant Breeding, Physiology and Biochemistry, Soil Sciences, Special Cultivation Technology, Stress Breeding, Agric. extension, and Cell Biology.
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