EFFECT OF 5- AMINOLEVULINIC ACID ON CHANGES OF WATER DEFICIT STRESS TOLERANCE INDEX AND CATALASE ACTIVITY OF SWEET PEPPER SEEDLINGS (CAPSICUM ANNUUM L. CV. RED BELL PEPPER)

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KHAZAEI Z.; SAYYARI M.; SEYDI M.

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Journal: Plant Productions Year:2015 | Volume:37 | Issue:4 Page(s): 79-92

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Title

EFFECT OF 5- AMINOLEVULINIC ACID ON CHANGES OF WATER DEFICIT STRESS TOLERANCE INDEX AND CATALASE ACTIVITY OF SWEET PEPPER SEEDLINGS (CAPSICUM ANNUUM L. CV. RED BELL PEPPER)

Author(s)

KHAZAEI Z. | SAYYARI M. | SEYDI M. | Issue Writer Certificate

Keywords

WATER DEFICIT STRESS SWEET PEPPERQ2

GROWTH REGULATORQ2

BIOCHEMICAL PARAMETERSQ1

Abstract

To study the effect of 5- aminolevulinic acid (ALA) on some physiological responses of sweet pepper under drought stress, a factorial experiment in a randomized complete block design with 5- aminolevulinic acid and water deficit stress treatments was carried out in the greenhouse of the agricultural faculty of llam University. Levels of water deficit stress were stress free conditions (irrigation within the field capacity), moderate stress (irrigation within the 60% field capacity) and severe water deficit stress (irrigation within the 30% field capacity). Four concentrations of AL Aincluding 0 (control), 0.25, 0.5, and 1 mM were applied as foliar application at three to four-leaf stage. The results showed that with increasing ALA concentrations, catalase activity, proline content, relative water content, dry weight, flower and fruit number increased but electrolyte leakage (EL) decreased. The lowest EL and the highest proline content, relative water content, fruit number and shoots fresh weight were observed at 1 mM of ALA while the highest catalase activity, dry weight and flower number were obtained with application of 0.5 mM ALA. Water deficit stress decreased relative water content, fresh and dry weight, flower and fruits numbers, but increased EL, proline content and catalase activity. ALA with increasing of catalase activity and reducing of EL reduced the stress effects on plant growth and yield. According the results of this experiment, through the impact on growth characteristics and biochemical and physiological parameters, ALA provides better water deficit stress tolerance in pepper plants.

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APA: Copy

KHAZAEI, Z., SAYYARI, M., & SEYDI, M.. (2015). EFFECT OF 5- AMINOLEVULINIC ACID ON CHANGES OF WATER DEFICIT STRESS TOLERANCE INDEX AND CATALASE ACTIVITY OF SWEET PEPPER SEEDLINGS (CAPSICUM ANNUUM L. CV. RED BELL PEPPER). THE PLANT PRODUCTION (SCIENTIFIC JOURNAL OF AGRICULTURE), 37(4), 79-92. SID. https://sid.ir/paper/165218/en

Vancouver: Copy

KHAZAEI Z., SAYYARI M., SEYDI M.. EFFECT OF 5- AMINOLEVULINIC ACID ON CHANGES OF WATER DEFICIT STRESS TOLERANCE INDEX AND CATALASE ACTIVITY OF SWEET PEPPER SEEDLINGS (CAPSICUM ANNUUM L. CV. RED BELL PEPPER). THE PLANT PRODUCTION (SCIENTIFIC JOURNAL OF AGRICULTURE)[Internet]. 2015;37(4):79-92. Available from: https://sid.ir/paper/165218/en

IEEE: Copy

Z. KHAZAEI, M. SAYYARI, and M. SEYDI, “EFFECT OF 5- AMINOLEVULINIC ACID ON CHANGES OF WATER DEFICIT STRESS TOLERANCE INDEX AND CATALASE ACTIVITY OF SWEET PEPPER SEEDLINGS (CAPSICUM ANNUUM L. CV. RED BELL PEPPER),” THE PLANT PRODUCTION (SCIENTIFIC JOURNAL OF AGRICULTURE), vol. 37, no. 4, pp. 79–92, 2015, [Online]. Available: https://sid.ir/paper/165218/en

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