Abstract
Increasing soil acidity (from pH 6.5 to pH 2.0) decreased chlorophyll (Chl)a andb contents, dry matter accumulation by plants and the transpiration coefficient. Chl stability to heat significantly increased with increased soil acidity. The Chla/b ratio was increased significantly at pH 5 and 4 and decreased at pH 3 and 2. SprayingSorghum shoots with kinetin solutions counteracted the above adverse effects on Chl content and dry matter accumulation. Kinetin-treated plants showed a lower transpiration coefficient than the untreated plants.
Abbreviations
- Chl:
-
chlorophyll
- CSI:
-
chlorophyll stability index
- d.m.:
-
dry mass
- f.m.:
-
fresh mass
References
Abdullah, Z., Ahmad, R.: Acidity induced changes in growth and chemical constituents of potato.— Biol. Plant.25: 95–99, 1983.
Banerji, D., Laloraya, M.M.: Chlorophyll formation in isolated pumpkin cotyledons in the presence of kinetin and chloramphenicol.—Plant Cell Physiol.8: 263–268, 1967.
Bengtson, C.B., Klockare, B., Larsson, S., Christer, S.: The effect of phytohormones on chlorophyll(ide), protochlorophyll(ide) and carotenoid formation in greening dark grown leaves.— Physiol. Plant.40: 198–204, 1977.
Chang, J.-H.: Climatic and Agriculture, an Ecological Survey.—Aldine Publ., Chicago 1968.
Čížková, R.: Acidification stress of root environment as related to endogenous cytokinins and gibberellins in oak seedlings.—Biol. Plant.32: 97–103, 1990.
Čížková, R.: Interactive effect of simulated acid rain and 6-benzylaminopurine on chlorophyll content in conifer seedlings.—Photosynthetica26: 165–172, 1992.
Gadallah, M.A.A.: Interactive Effect of Kinetin and Soil Moisture Stress on the Water Relations of Some Crop Plants.—M.Sc. Thesis, Bot. Dep. Fac. Sci. Assiut University, Assiut 1986.
Gadallah, M.A.A.: Effect of Growth Regulators on Some Parameters of Plant Water Relations under Salinity and Alkalinity stresses.—Ph.D. Thesis, Bot. Dep. Fac. Sci., Assiut University, Assiut 1990.
Grevby, C., Ryberg, M., Sundqvist, C.: Transformation of photoinactive to photoactive protochlorophyll(ide) in isolated prolamellar bodies of wheat exposed to low pH and ATP.—Physiol. Plant.70: 155–162, 1987.
Hoagland, D.R., Arnon, D.I.: The water culture method for growing plants without soil.—Calif. Agr. Exp. Sta. Circular 347, 1950.
Murty, K.S., Majumder, S.K.: Modification of technique for determination of chlorophyll stability index in relation to studies of drought resistance in rice.—Curr. Sci.31: 470–471, 1962.
Osborne, D.J.: Effects of kinetin on protein and nucleic acid metabolism inXanthium leaves during senescence.—Plant Physiol.37: 595–602, 1962.
Osborne, D.J., McCalla, D.R.: Rapid bioassay for kinetin and kinins using senescing leaf tissue.— Plant Physiol.36: 219–221, 1961.
Parthier, B., Wollgiehn, R.: Über den Einfluss des Kinetins auf den Eiweiss- und Nukleinsäurestoffwechsel in isolierten Tabakblättern.—Ber. deut. bot. Ges.74: 47–51, 1961.
Pilet, P.E., Hoffer, R.M.: Action de la kinétine sur la croissance et la teneur en chlorophylles des racines.—Physiol. Plant.19: 1026–1037, 1966.
Rosalinda, B., Janes, J.B., Aetsch, L.: Induction and regulation of chloroplast replication in mature tobacco leaf tissue.—Plant Physiol.47: 560–564, 1971.
Sabater, B., Rodriquez, M.T.: Control of chlorophyll degradation in detached leaves of barley and oat through effect of kinetin on chlorophyllase level.—Physiol. Plant.43: 274–276, 1978.
Shlyk, A.A., Averina, N.G.: [Nature of the influence of kinetin on the process of accumulation of protochlorophyll(ide) in etiolated and green barley leaves.]—Dokl. Akad. Nauk SSSR213: 235–238, 1973. [In Russ.]
Stetler, A.D., Laetsch, W.M.: Kinetin-induced chloroplast maturation in cultures of tobacco tissue.— Science149: 1387–1388, 1965.
Stobart, A.K., Shewary, P.R., Thomas, O.R.: The effect of kinetin on chlorophyll synthesis in ageing etiolated barley leaves exposed to light.—Phytochemistry11: 571–577, 1972.
Sugiura, M.: Promotion of chlorophyll synthesis by kinetin.—Bot. Mag. (Tokyo)76: 309–310, 1963.
Todd, G.W., Basler, E.: Fate of various protoplasmic constituents in droughted wheat plants.—Phyton22: 79–85, 1965.
Ulrich, B., Mayer, R., Khanna, K.P.: Chemical changes due to acid precipitation in a loess-derived soil in central Europe.—Soil Sci.130: 193–199, 1980.
Woolhouse, H.W.: The nature of senescence in plants.—Symp. Soc. exp. Biol.21: 179–213, 1967.
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Gadallah, M.A.A. The combined effects of acidification stress and kinetin on chlorophyll content, dry matter accumulation and transpiration coefficient inSorghum bicolor plants. Biol Plant 36, 149–153 (1994). https://doi.org/10.1007/BF02921283
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DOI: https://doi.org/10.1007/BF02921283