Physiological Characterization of Tripidium arundinaceum and Sugarcane ( Saccharum spp.) Germplasm for Salinity Stress Tolerance at the Formative Stage

Channappa Mahadevaiah (), Palanisamy Vignesh, Chinnasamy Appunu, Ramanathan Valarmathi, Pooja Dhansu, Ashwani Kumar, Selvarajan Dharshini, Thelakat Sasikumar Sarath Padmanabhan, Jayanarayanan Ashwin Narayan, Kannan Selvamuthu, Venkatarayappa Sreenivasa, Huskur Kumaraswamy Mahadeva Swamy, Vazhakkannadi Vinu, Arun Kumar Raja, Giriyapura Shivalingamurthy Suresha, Govindakurup Hemaprabha and Ravinder Kumar ()
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Channappa Mahadevaiah: Division of Crop Improvement, ICAR-Sugarcane Breeding Institute, Coimbatore 6410074, India
Palanisamy Vignesh: Division of Crop Improvement, ICAR-Sugarcane Breeding Institute, Coimbatore 6410074, India
Chinnasamy Appunu: Division of Crop Improvement, ICAR-Sugarcane Breeding Institute, Coimbatore 6410074, India
Ramanathan Valarmathi: Division of Crop Improvement, ICAR-Sugarcane Breeding Institute, Coimbatore 6410074, India
Pooja Dhansu: ICAR-Sugarcane Breeding Institute Regional Station, Karnal 132001, India
Ashwani Kumar: ICAR-Central Soil Salinity Research Institute, Karnal 132001, India
Selvarajan Dharshini: Division of Crop Improvement, ICAR-Sugarcane Breeding Institute, Coimbatore 6410074, India
Thelakat Sasikumar Sarath Padmanabhan: Division of Crop Improvement, ICAR-Sugarcane Breeding Institute, Coimbatore 6410074, India
Jayanarayanan Ashwin Narayan: Division of Crop Improvement, ICAR-Sugarcane Breeding Institute, Coimbatore 6410074, India
Kannan Selvamuthu: Division of Crop Improvement, ICAR-Sugarcane Breeding Institute, Coimbatore 6410074, India
Venkatarayappa Sreenivasa: Division of Crop Improvement, ICAR-Sugarcane Breeding Institute, Coimbatore 6410074, India
Huskur Kumaraswamy Mahadeva Swamy: Division of Crop Improvement, ICAR-Sugarcane Breeding Institute, Coimbatore 6410074, India
Vazhakkannadi Vinu: Division of Crop Improvement, ICAR-Sugarcane Breeding Institute, Coimbatore 6410074, India
Arun Kumar Raja: Division of Crop Improvement, ICAR-Sugarcane Breeding Institute, Coimbatore 6410074, India
Giriyapura Shivalingamurthy Suresha: Division of Crop Improvement, ICAR-Sugarcane Breeding Institute, Coimbatore 6410074, India
Govindakurup Hemaprabha: Division of Crop Improvement, ICAR-Sugarcane Breeding Institute, Coimbatore 6410074, India
Ravinder Kumar: ICAR-Sugarcane Breeding Institute Regional Station, Karnal 132001, India

Sustainability, 2023, vol. 15, issue 8, 1-27

Abstract: A total of sixteen accessions of Tripidium arundinaceum (Retz.) Welker, Voronts. & E.A. Kellogg (previously known as Erianthus arundinaceus (Retz.) Jeswiet) were evaluated for salinity tolerance at the bud germination stage by irrigating with 175 mM salinized Hoagland solution in perlite-sand hydroponics. Six accessions, IND99-907, IND01-1134, IND01-1136, IK76-48, and Bethuadahari, were germinated with healthy roots as compared to other accessions. These six accessions were further evaluated for morphological, physiological, and root anatomical parameters for different levels of salinity stress at the formative phase. Young leaf elongation was ceased after the fourth and twelfth day in Co 97010 and Co 86032, respectively, at 175 mM of salinity stress. The growth of young leaves in Co 97010 and Co 86032 was observed up to 25 mM of salinity stress only, whereas in T. arundinaceum accessions viz. , IND99-907 and Bethuadahari, growth was recorded even at 175 mM. Lignification of cell walls, thickening of protoxylems, and vacuolization of cortex regions were observed in Co 97010, Co 86032, Bethuadahari, and IND01-1134 as compared to the normal anatomical structures in IND99-907. The accession IND99-907 recorded the lowest Na/K ratio, followed by IND99-1136 at 175 mM of salinity stress. The accession IND99-907 was identified as a salinity-tolerant genotype and suitable for utilization in the sugarcane crop improvement programmes.

Keywords: Tripidium arundinaceum; Erianthus arundinaceus; Saccharum spp.; salinity stress; leaf elongation rate; sodium-potassium ratio; root anatomy (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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