Photosynthesis Parameters in Two Cultivars of Mulberry Differing in Salt Tolerance

Kumar, Sandeep; Lakshmi, A.; Madhusudhan, K. V.; Sunkar, Ramanjulu; Sudhakar, Chinta

doi:10.1023/a:1007008608217

Cited by 25 publications

(7 citation statements)

References 11 publications

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“…Malanga et al [ 50 ] stated that the decrease of the total Chl content could be the consequence of the alteration of the photosynthetic capacity of chloroplasts. Our results are in accordance with those reported by References [ 51 , 52 ] in which total Chl contents decreased with the increase of NaCl concentrations. Several studies have shown that low doses of gamma rays applied on seeds stimulate germination, plant growth, and synthesis of photosynthetic pigments [ 53 ].…”

Section: Resultssupporting

confidence: 94%

Impact of Proton Beam Irradiation on the Growth and Biochemical Indexes of Barley (Hordeum vulgare L.) Seedlings Grown under Salt Stress

Oprică

Grigore

Caraciuc³

et al. 2020

Plants

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The present paper examines the effects of salt stress on the growth, pigments, lipid peroxidation and antioxidant ability of barley (Hordeum vulgare L.) seedlings raised from proton beam irradiated caryopses. In order to assess the effects of radiation on the early stages of plant growth and analyze its possible influence on the alleviation of salinity, 3 and 5 Gy doses were used on dried barley seeds and germination occurred in the presence/absence of NaCl (100 mM and 200 mM). After treatment, photosynthetic pigments increased in the 5 Gy variant, which registered a higher value than the control. Among the antioxidant enzymes studied (SOD, CAT, and POD) only CAT activity increased in proton beam irradiated seeds germinated under salinity conditions, which indicates the activation of antioxidant defense. The malondialdehyde (MDA) content declined with the increase of irradiation doses on seeds germinated at 200 mM NaCl. On the other hand, the concentration of 200 mM NaCl applied alone or combined with radiation revealed an increase in soluble protein content. The growth rate suggests that 3 Gy proton beam irradiation of barley seeds can alleviate the harmful effects of 100 mM NaCl salinity, given that seedlings’ growth rate increased by 1.95% compared to the control.

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Section: Resultssupporting

confidence: 94%

Impact of Proton Beam Irradiation on the Growth and Biochemical Indexes of Barley (Hordeum vulgare L.) Seedlings Grown under Salt Stress

Oprică

Grigore

Caraciuc³

et al. 2020

Plants

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show abstract

“…In contrast, Ls was signi cantly higher than that of the control (Fig. 4-7), which is consistent with the results of previous studies [43][44][45] . The decrease of Ci and the increase of Li and the simultaneous decrease of Pn and Gs are thought to lead to the decrease of photosynthetic rate through stomatal limitation 46,47 , which because salt stress causes physiological drought in plants.…”

Section: Discussionsupporting

confidence: 92%

Effect of NaCl stress on tillering of rice (Oryza sativa L.) and mitigation regulation of prohexadione-calcium

Zhang

Zheng

Feng

et al. 2022

Preprint

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Salt stress inhibits crop quality and yields, and growth regulators are used to enhance salt tolerance of crops. Here, we report the effect of prohexadione-calcium (Pro-Ca) on rice tillering under salt stress. The results showed the malondialdehyde (MDA) levels and electrolyte leakage in leaves were increased as well as the expression of the antioxidant enzymes was induced under salt stress. Foliar application of Pro-Ca reduced seedling height, increased the stem base width, improved the lodging resistance of rice, decreased MDA content and electrolyte leakage, and alleviated the membrane damage of rice under salt stress. Exogenous Pro-Ca also increased the net photosynthetic rate (Pn) and the stomatal conductance (Gs) of rice, decreased the intercellular CO2 concentration (Ci), and increased the activities of superoxide dismutase (SOD), catalase (CAT), peroxidase (POD), and ascorbate peroxidase (APX) of rice at the tillering stage under salt stress. In conclusion, Pro-Ca improved the salt tolerance of rice at the tillering stage by enhancing the lodging resistance of rice, alleviating cell membrane damage of leaves caused by NaCl stress, and enhancing photosynthesis and antioxidant capacity. Effect of Pro-Ca on rice at the tillering stage under 0.3% NaCl stress was discussed, which provided a theoretical basis for revealing physiological changes at the rice tillering stage.

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“…The results of the present study revealed that development of mulberry hybrids with novel desirable traits is much possible through systematic breeding programs. Most of the breeding studies were carried out on the development of pest and diseases resistant varieties, salt and drought tolerant varieties (Kumar et al, 1999, Vijayan et al, 2008, Gnanaraj et al, 2011) [17,34,11] . So far, only few studies in growth and yield related traits (Vijayan et al, 2004) [33] .…”

Section: Resultsmentioning

confidence: 99%

Assessment of combining ability for growth and survivability traits in mulberry using line × tester analysis

Bhuvana¹,

Mangammal²,

Murugesh³

et al. 2020

Int. J. Chem. Stud.

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Combining ability in mulberry was assessed by using Line x Tester mating design. In the present study, five lines viz., MI-0543, MI-0615, MI-0651, MI-0685, MI-0718 and three testers viz., V1, G4, MI-0663 were crossed to obtain fifteen F1 progenies. Growth and survivability traits were evaluated for the F1 crosses through Analysis of variance (ANOVA), General combining ability (GCA) and Specific combining ability (SCA) for the parameters such as germination per cent, survivability per cent, plant height, number of leaves per branch, internodal distance and leaf moisture content. Among the eight parental genotypes MI-0543 (female) and V1 (male) were the best combiners and MI-0685 x V1 was the best cross for growth and survivability traits. Hence, both non-additive and additive gene actions are important for the mulberry improvement.

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Photosynthesis Parameters in Two Cultivars of Mulberry Differing in Salt Tolerance

Cited by 25 publications

References 11 publications

Impact of Proton Beam Irradiation on the Growth and Biochemical Indexes of Barley (Hordeum vulgare L.) Seedlings Grown under Salt Stress

Impact of Proton Beam Irradiation on the Growth and Biochemical Indexes of Barley (Hordeum vulgare L.) Seedlings Grown under Salt Stress

Effect of NaCl stress on tillering of rice (Oryza sativa L.) and mitigation regulation of prohexadione-calcium

Assessment of combining ability for growth and survivability traits in mulberry using line × tester analysis

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