Parental potential of sugarcane clones for drought resistance breeding

Hemaprabha, G.; Nagarajan, R.; Alarmelu, S.; Natarajan, U. S.

doi:10.1007/bf02943743

Cited by 21 publications

(13 citation statements)

References 2 publications

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“…Water deficiency significantly reduces the yields of commercial crops. Such a decline in yields is more evident in the case of water demanding crops, for instance sugarcane, rice, cotton, and maize 3 , 4 . Under such conditions, sugarcane manifests variations in transpiration rate, stomatal conductance, internal CO 2 concentration, and photosynthetic rate—primarily instigated through stomata 5 .…”

Section: Introductionmentioning

confidence: 99%

Revisiting the physical mutagenesis for sugarcane improvement: a stomatal prospective

Yasmeen

Khan

2020

Sci Rep

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This study was conducted to investigate the influence of gamma rays on stomatal parameters and the interaction of these traits with agronomy of the sugarcane crop. Three genotypes of sugarcane (NIA-0819, NIA-98, and BL4) were exposed to four doses of gamma radiation (10, 20, 30, and 40 Gy) and then subjected to field trials. Stomatal length, width, and density were observed using scanning electron microscopy. Moreover, agronomic and sugar-related characteristics of the crop were determined at maturity. The stomatal parameters augmented at two lower doses of gamma radiation (10 and 20 Gy) and declined under higher doses (30 and 40 Gy). The maximum stomatal length was observed in NIA-0819 at 10 Gy (63.71 µm), whereas NIA-98 and BL4 demonstrated highest stomatal length under 20 Gy (54.11 and 57.40 µm, respectively), indicating a role of genetic factors in varietal response. Similar trend was noticed for stomatal width and density as well. The lowermost treatment (10 Gy) of NIA-0819 produced maximum stomatal density (115.31 stomata mm-2 on the abaxial surface). Adaxial stomatal density was significantly lower than the abaxial one. Sugar quality attributes revealed a different tendency. Sucrose contents of BL4 increased gradually from 12.33% at control to 14.54% at 40 Gy. Yield and yield-contributing traits of genotypes indicated a strong positive correlation with the stomatal parameters. The present study suggested that gamma radiations cause variations in stomatal characteristics of sugarcane. These changes further influence the photosynthetic activity and instigate a direct impact on the agronomic performance of the crop.

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Section: Introductionmentioning

confidence: 99%

Revisiting the physical mutagenesis for sugarcane improvement: a stomatal prospective

Yasmeen

Khan

2020

Sci Rep

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“…There are numerous studies on the effect of water deficit on specific aspects of growth and physiology; evaluation of genetic variation in large genetically diverse populations of sugarcane under water stress in field conditions is very limited (Hemaprabha et al 2006). In an extensive field trial, a substantial reduction in cane and sugar yield and all growth parameters, except for stem thickness, was observed under moderate to severe stress conditions in all clones evaluated (Basnayake et al 2012).…”

Section: Shoot Development Is Highly Sensitive To Water Stressmentioning

confidence: 99%

“…However, relatively little effort was directed toward developing varieties genetically improved for water-use efficiency (WUE) (Inman-Bamber et al 2012 and references therein). This situation is changing: there is now increasing water stress research in many countries with the ultimate goal of discovering a genetic basis for variety improvement (Hemaprabha et al 2006;Koonjah et al 2006;Rocha et al 2007;Silva et al 2007;Prabu et al 2011;Basnayake et al 2012;InmanBamber et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Stress Physiology: Abiotic Stresses

Lakshmanan

Robinson

2013

Sugarcane: Physiology, Biochemistry, and Functional Biology

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“…Queiroz et al (2011) employed multivariate analysis of biochemical (proline and trehalose osmolytes) and physiological characters to categorize IAC91-5155 as drought tolerant genotypes of sugarcane (Queiroz et al 2011). Also, the multivariate parameters have been suggested as effective criteria for drought tolerant selection in sugarcane genotypes (Hemaprabha et al 2004;Vasantha et al 2005;Hemaprabha et al 2006;Silva et al 2008;Ishaq and Olaoye 2009).…”

Section: Multivariate Cluster Analysismentioning

confidence: 99%

“…In most of previous studies, a single parameter has been used as a selection criterion for screening sugarcane germplasm for drought tolerance (Wagih et al 2003;Hemaprabha et al 2004;Hemaprabha et al 2006) and the results have not been so encouraging in terms of identification of tolerant genotypes. Thus, the aim of the present investigation was to compare different (seven) sugarcane cultivars grown in vitro and field conditions for drought tolerance screening using the Ward's cluster analysis based on a number of physiological, biochemical and morphological parameters.…”

mentioning

confidence: 99%

Evaluating sugarcane (Saccharum sp.) cultivars for water deficit tolerance using some key physiological markers

Cha–um

Wangmoon

Mongkolsiriwatana

et al. 2012

Plant Biotechnology

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Seven sugarcane (Saccharum sp.) commercial cultivars, viz., , originally derived from meristem cuttings were subjected to simulated osmotic stress (as 200 mM mannitol) under controlled environmental conditions. Proline content in the leaf tissues of all cultivars except K92-80, increased in plants subjected to mannitol-induced osmotic stress. Chlorophyll a (Chl a ), chlorophyll b (Chl b ), total chlorophyll (TC), maximum quantum yield of PSII (F v /F m ), and photon yield of PSII (Φ PSII ) of all seven cultivars decreased under osmotic stress resulting in a reduction in net-photosynthetic rate (P n ). A positive correlation was found between F v / F m and Φ PSII , proline content and non-photochemical quenching (NPQ), Φ PSII and P n , and P n and plant dry weight in the sugarcane cultivars. Based upon Ward's multivariate cluster analyses of data for proline content, photosynthetic capacity, chlorophyll fluorescence, and growth inhibition, three cultivars (K88-92, K92-80 and UT-94-2-483) were identified as water deficit sensitive, whereas four (K84-200, K95-84, K97-32 and LK92-11) as water deficit tolerant. These observations on different cultivar's sensitivity/tolerance were confirmed by growth and yield attributes measured in a field trial. The plant dry weight (in vitro) correlated positively with total stalk weight of sugarcane cultivars

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Parental potential of sugarcane clones for drought resistance breeding

Cited by 21 publications

References 2 publications

Revisiting the physical mutagenesis for sugarcane improvement: a stomatal prospective

Revisiting the physical mutagenesis for sugarcane improvement: a stomatal prospective

Stress Physiology: Abiotic Stresses

Evaluating sugarcane (Saccharum sp.) cultivars for water deficit tolerance using some key physiological markers

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