Leaf Expansion Limits Dry Matter Accumulation of Salt-Stressed Maize

Cramer, Grant R.; Alberico, G.; Schmidt, C.

doi:10.1071/pp9940663

Cited by 62 publications

(41 citation statements)

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“…These results showed that Tsushima was signifi cantly more tolerant to salinity than Pontivy. The dry-matter accumulation of salt-stressed maize was infl uenced by the degree of leaf expansion (Cramer et al, 1994). In the present experiments, PGR of both buckwheat species signifi cantly correlated with NAR (Tsushima; r = 0.983**, Pontivy; r=0.986**) and MLA (Tsushima; r = 0.982**, Pontivy; r=0.988**) as shown in Fig.…”

Section: Plant Growthsupporting

confidence: 50%

“…These results showed that the interspecifi c difference in L 2 was mainly caused by the differences in GR L , LA L and SLA. In salt-stressed maize, leaf area ratio was signifi cantly lowered due to the reduction in SLA and leaf weight ratio, indicating that the salt stress altered leaf expansion and carbon allocation (Cramer et al, 1994). The increase in SLA might be important for the salt tolerance of maize because the degree of leaf expansion was related to SLA (Cramer et al, 1994).…”

Section: Leaf Expansionmentioning

confidence: 99%

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Differences in the Vegetative Growth between Common and Tartary Buckwheat in Saline Hydroponic Culture

Matsuura¹,

Inanaga

Murata³

2005

Plant Production Science

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: Common buckwheat (Fagopyrum esculentum Moench cv. Tsushima) and Tartary buckwheat (F. tataricum (L.) Gaertn. cv. Pontivy) were grown in a nutrient solution with or without added NaCl to investigate interspecifi c differences in their responses to salinity, based on their dry-matter production. The mechanism of salt tolerance was also studied. Addition of 100 mM NaCl to the culture solution (salt treatment) lowered the plant growth rate to 48% and 16% of the control in Tsushima and Pontivy, respectively, and decreased the net assimilation rate and mean leaf area of Pontivy more severely than in Tsushima. The salt treatment decreased the leaf growth rate and leaf area per leaf to 30% and 72% of the control, respectively, in Tsushima, and to 12% and 52%, respectively, in Pontivy. It decreased the photosynthetic rate to 67% and 35% of the control, and stomatal conductance to 25% and 15% of the control in Tsushima and Pontivy, respectively. It also decreased the transpiration rate to 41% and 30% of the control in Tsushima and Pontivy, respectively, and increased the wateruse effi ciency 1.6 times in Tsushima, but did not infl uence the wateruse effi ciency in Pontivy. In the saline solution, the accumulation of Na + in leaves and stem was greater in Pontivy than in Tsushima, but that in the roots, was greater in Tsushima than in Pontivy. In both species, Na + accumulated rapidly in the leaves after removal of the roots in the saline solution. We conclude that the difference in salt tolerance between common and Tartary buckwheat may result from the difference in accumulation of Na + in leaves and absorption of Na + by the roots.

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Section: Plant Growthsupporting

confidence: 50%

Section: Leaf Expansionmentioning

confidence: 99%

Differences in the Vegetative Growth between Common and Tartary Buckwheat in Saline Hydroponic Culture

Matsuura¹,

Inanaga

Murata³

2005

Plant Production Science

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“…Thus, the obtained results do not allow to distinguish definitively which variety is more tolerant to salinity. Various reports indicate that there are varietal differences in growth responses to salinity (Aslam et al 1993;Cramer et al 1994;Neumann 1997). However, Munns (2002 reported that during a short time in salinity it is difficult to assess the differences in plants salt tolerance, since the decrease in growth rate may be the same for species that have quite different reputations for salt tolerance.…”

Section: Discussionmentioning

confidence: 99%

Effect of NaCI and supplemental calcium on growth parameters and nitrate reductase activity in maize

et al. 2011

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In this study, investigated were the effects of NaCl (60 mmol·dm -3 ) and NaCl supplemented with different salts (5 mmol·dm -3 CaCl 2 , CaSO 4 , CaCO 3 , KCl), on growth of two maize varieties (Cyrkon and Limko). After 7 days of cultivation in nutrient solution the growth response to salinity of both maize varieties was similar. NaCl led to a dramatic decrease in growth of plants (approx. 50% reduction in fresh and dry weight of root, and 70% reduction in fresh weight of shoot). Addition of extra Ca 2+ or K + to nutrient solution containing NaCl did not definitely improve the growth parameters of maize. However, among the tested salts, CaCl 2 had a beneficial visual effect on maize seedlings. In other cases the plants showed noticeable symptoms of salt damage. In long term exposure to salinity (two weeks) growth of Cyrkon was more inhibited than Limko. Comparison of growth responses in short-term exposure to salinity (7 days) with long-term (14 days) showed that in Cyrkon variety the negative effects of NaCl were intensified and addition of CaCl 2 to salinized solution had not positive effects on growth. On the contrary, in Limko variety, there was a significant improvement in growth (especially in root dry weight). This fact indicates that during longer exposure to salinity Limko was able to adapt to those conditions. Salinity caused a significant decrease in leaf nitrate reductase activity (60% and 30% reduction respectively in Limko and Cyrkon). Addition of CaCl 2 to salinized nutrient solution resulted in greater enzyme inhibition in Cyrkon (50% decline in relation to plants grown under sole NaCl), and 30% increase in Limko. Inhibition of nitrate reductase activity did not cause a decrease in concentration of soluble protein in maize leaves.

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“…In several other reports, it has been indicated that varietal differences in growth response to salinity could occur without sodium toxicity. For example, Cramer et al (1994) reported that in maize, leaf growth was more sensitive to salinity than the other plant parts and that the salt-sensitive cultivars accumulated less sodium than the salt-tolerant cultivars. A similar observation was noted for wheat, where the salt-tolerant lines showed much higher shoot Na+ levels than the sensitive lines (Schachmann and Munns 1992).…”

Section: Discussionmentioning

confidence: 99%

Effect of salinity on growth and solute accumulation in two wheat lines differing in salt tolerance

Saneoka

Shiota

Kurban

et al. 1999

Soil Science and Plant Nutrition

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Leaf Expansion Limits Dry Matter Accumulation of Salt-Stressed Maize

Cited by 62 publications

References 0 publications

Differences in the Vegetative Growth between Common and Tartary Buckwheat in Saline Hydroponic Culture

Differences in the Vegetative Growth between Common and Tartary Buckwheat in Saline Hydroponic Culture

Effect of NaCI and supplemental calcium on growth parameters and nitrate reductase activity in maize

Effect of salinity on growth and solute accumulation in two wheat lines differing in salt tolerance

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