Abstract
Three-month-old mulberry (Morus alba L.) cultivars (salt tolerant cv. S1 and salt sensitive cv. ATP) were subjected to different concentrations of NaCl for 12 d. Leaf area, dry mass accumulation, total chlorophyll (Chl) content, net CO2 assimilation rate (P N), stomatal conductance (g s), and transpiration rate (E) declined, and intercellular CO2 concentration (C i) increased. The changes in these parameters were dependent on stress severity and duration, and differed between the two cultivars. The tolerant cultivar showed a lesser reduction in P N and g s coupled with a better C i and water use efficiency (WUE) than the sensitive cultivar.
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References
Arnon, D.I.: Copper enzymes in isolated chloroplasts. Polyphenoloxidase in Beta vulgaris.-Plant Physiol. 24: 1-15, 1949.
Berry, J.A., Downton, W.J.S.: Environmental regulation of photosynthesis.-In: Govindjee (ed.): Photosynthesis. Vol. II. Pp. 263-343. Academic Press, New York-London-Paris-San Diego-San Francisco-São Paulo-Sydney-Tokyo-Toronto 1982.
Brugnoli, E., Lauteri, M.: Effects of salinity on stomatal conductance, photosynthetic capacity, and carbon isotope discrimination of salt-tolerant (Gossypium hirsutum L.) and salt-sensitive (Phaseolus vulgaris L.) C3 non-halophytes.-Plant Physiol. 95: 628-635, 1991.
Drązkiewicz, M.: Chlorophyllase: occurrence, functions, mechanism of action, effects of external and internal factors.-Photosynthetica 30: 321-331, 1994.
Everard, J.D., Gucci, R., Kann, S.C., Flore, J.A., Loescher, W.H.: Gas exchange and carbon partitioning in the leaves of celery (Apium graveolens L.) at various levels of root zone salinity.-Plant Physiol. 106: 281-292, 1994.
Heuer, B., Nadler, A.: Physiological response of potato plants to soil salinity and water deficit.-Plant Sci. 137: 43-51, 1998.
Kluge, M.: Carbon and nitrogen metabolism under water stress.-In: Lange, O.L., Kappen, L., Schulze, E.D. (ed.): Water and Plant Life. Pp. 243-252. Springer-Verlag, Berlin-Heidelberg-New York 1976.
Kolchevskiï, K.G., Kocharyan, N.I., Koroleva, O.Ya.: Effect of salinity on photosynthetic characteristics and ion accumulation in C3 and C4 plants of Ararat plain.-Photosynthetica 31: 277-282, 1995.
Lakshmi, A., Ramanjulu, S., Veeranjaneyulu, K., Sudhakar, C.: Effect of NaCl on photosynthesis parameters in two cultivars of mulberry.-Photosynthetica 32: 285-289, 1996.
Levitt, J.: Responses of Plants to Environmental Stresses. Vol. II.-Pp. 489-524. Academic Press, New York 1980.
Nagy, Z., Galiba, G.: Drought and salt tolerance are not necessarily linked: a study on wheat varieties differing in drought tolerance under consecutive water and salinity stresses.-J. Plant Physiol. 145: 168-174, 1995.
Plaut, Z., Grieve, C.M., Maas, E.V.: Salinity effects on CO2 assimilation and diffusive conductance of cowpea leaves.-Physiol. Plant. 79: 31-38, 1990.
Ramanjulu, S., Sreenivasalu, N., Giridhara Kumar, S., Sudhakar, C.: Photosynthetic characteristics in mulberry during water stress and rewatering.-Photosynthetica 35: 259-263, 1998.
Ramanjulu, S., Veeranjaneyulu, K., Sudhakar, C.: Relative tolerance of certain mulberry (Morus alba L.) varieties to NaCl salinity.-Sericologia 34: 695-702, 1994.
Rao, G.G., Rao, G.R.: Pigment composition and chlorophyllase activity in pigeon pea (Cajanus indicus Spreng) and gingelley (Sesamum indicum L.) under NaCl salinity.-Indian J. exp. Biol. 19: 768-770, 1981.
Sharma, P.K., Hall, D.O.: The effect of salinity, photoinhibition and interaction of both on photosynthesis in barley.-In: Barber, J., Malkin, R. (ed.): Techniques and New Developments in Photosynthesis Research. Pp. 571-578. Plenum Press, New York-London 1989.
Sreenivasulu Reddy, P., Ramanjulu, S., Sudhakar, C., Veeranjaneyulu, K.: Differential sensitivity of stomatal and non-stomatal components to NaCl or Na2SO4 salinity in horsegram, Macrotyloma uniflorum (Lam.).-Photosynthetica 35: 99-105, 1998.
Stiborová, M., Kšinská, S., Březinová, A.: Effect of NaCl on the growth and biochemical characteristics of photosynthesis of barley and maize.-Photosynthetica 21: 320-328, 1987.
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Kumar, S.G., Lakshmi, A., Madhusudhan, K. et al. Photosynthesis Parameters in Two Cultivars of Mulberry Differing in Salt Tolerance. Photosynthetica 36, 611–616 (2000). https://doi.org/10.1023/A:1007008608217
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DOI: https://doi.org/10.1023/A:1007008608217