HORMONES-INDUCED MODIFICATIONS IN THE RESPONSE OF WHEAT FLAG LEAF TO NACL

被引：8

作者：

ALDESUQUY, HS

机构：

[1] Department of Botany, Faculty of Science, Mansoura University, Mansoura

来源：

BIOLOGIA PLANTARUM | 1995年 / 37卷 / 04期

关键词：

GIBBERELLIC ACID; INDOLYL-3-ACETIC ACID; KINETIN; TRITICUM AESTIVUM;

D O I：

10.1007/BF02908845

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

A field experiment was carried out to investigate the effects of presoaking the wheat grains (Triticum aestivum L.) in 33 or 66 mM NaCl and indolyl-3-acetic acid (IAA at 50 g m(-3)), gibberellic acid (GA(3) at 100 g m(-3)) or kinetin (100 g m(-3)) on some tolerance criteria in wheat flag leaf at different stages of development. At various stages of flag leaf development pretreatment with 33 or 66 mM NaCl decreased degree of succulence (particularly 66 mM), relative growth rate, net assimilation rate, relative water content, K+ content and K+/Na+ ratio and at the same time induced accumulation of abscisic acid and Na+. In the majority of cases grain pretreatment with GA(3) or kinetin and to a lesser extent with IAA alleviated either partially or completely the deleterious effect of salinity on the above mentioned parameters.

引用

页码：605 / 611

页数：7

共 22 条

[1]

Abd El-Gawad A.A., Abo-Sheatia A.M., Edris A.S., Potential productivity of wheat in Egypt. II. Growth analysis studies of certain wheat cultivar, Ann. agr. Sci. Fac. Agr. Ain Shams Univ. (Cairo), 30, pp. 835-848, (1985)

[2]

Abo-Hamed S.A., Younis M.E., El-Shahaby O.A., Haroun S.A., Plant growth metabolism and adaptation in relation to stress conditions. IX Endogenous levels of hormones, minerals and organic solutes in Pisum sativum plants as affected by salinity, Phyton, 30, pp. 187-199, (1990)

[3]

Aldesuquy H.S., Growth and pigment content of wheat as influenced by the combined effects of salinity and growth regulators, Biol. Plant., 34, pp. 275-283, (1992)

[4]

Blackman G.E., Physiological and ecological studies in the analysis of plant environment, Ann. Bot., 15, pp. 373-408, (1951)

[5]

Davenport T.L., Morgan P.W., Jordan W.R., Reduction of auxin transport capacity with age and internal water deficit in cotton petioles, PLANT PHYSIOLOGY, 65, pp. 1023-1025, (1980)

[6]

El-Deep B.A., The effect of plant hormones and salinity on some physiological activities of some plants, (1984)

[7]

Flowers T.J., Troke P.F., Yeo A.R., The mechanism of salt tolerance in halophytes, Annual Review of Plant Physiology, 28, pp. 89-121, (1977)

[8]

Glenn E.P., Relationship between action accumulation and water content of salt-tolerant grasses and a sedge, Plant Cell Environ., 10, pp. 205-212, (1987)

[9]

Greogory F.G., The effect of climatic conditions on the growth of barley, Ann. Bot., 40, pp. 1-26, (1926)

[10]

Handley J.F., Jennings D.H., The effect of ions on leaf succulence of Atriplex hortensis var. cupreata, Ann. Bot., 41, pp. 1109-1112, (1977)

← 1 2 3 →