Physiological response of maize seedlings (Zea mays

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DOLATMAND SHAHRI NARGES; TAHMASEBI IRAJ; haghshenas masoud

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Journal: CROP PHYSIOLOGY Year:2018 | Volume:10 | Issue:38 Page(s): 111-131

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Title

Physiological response of maize seedlings (Zea mays "Mv500") to non-threshold temperatures plant under concentrations of salicylic acid

Author(s)

DOLATMAND SHAHRI NARGES | TAHMASEBI IRAJ | haghshenas masoud | Issue Writer Certificate

Keywords

ProlineQ2

High temperature tensionQ1

Photosynthetic pigments and Salicylic acidQ1

Abstract

In order to investigate the physiological response of corn seedlings to non-threshold temperatures under different salicylic acid concentrations, a factorial experiment was carried out in a completely randomized design with three replications was carried out (controlled chamber growth conditions) at Kurdistan University Physiology Laboratory in 2013. The first factor was five levels of temperature (25, 30, 35, 40 and 45 Celsius degree) and the second factor was the four levels of salicylic acid foliar application (zero, 1. 5, 2. 5 and 5 mille Molar). The results indicated a significant effect of salicylic acid, temperature (P<0. 01) and interaction of these two factors on photosynthetic capacity (dry weight and leaf area, photosynthetic pigments (chlorophyll a, chlorophyll b, total chlorophyll) and biological traits (ionic leakage leaf and Proline). The relative water content of the leaf was not subjected to temperature interaction with salicylic acid. By increasing salicylic acid concentration, the relative water content of the leaf increased and by increasing temperature decreased. Based on the interaction results, under higher temperatures than 35 Celsius degree (40 and 45 in Celsius degree), the photosynthetic capacity and relative water content decreased, and the ionic leakage and Proline increased. The results also showed that, at temperatures up to 35 Celsius degree, salicylic acid concentration increased to five mille Molar and under temperatures 40 and 45 Celsius degree until 2. 5 Mille Molar improves leaf area, photosynthetic pigments and increases Proline. According to the general results under the temperatures the tolerance threshold, the corn seedlings suffered severe tension and salicylic acid to some degree moderated the thermal tension to a concentration of 2. 5 mille Molar.

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APA: Copy

DOLATMAND SHAHRI, NARGES, TAHMASEBI, IRAJ, & haghshenas, masoud. (2018). Physiological response of maize seedlings (Zea mays "Mv500") to non-threshold temperatures plant under concentrations of salicylic acid. CROP PHYSIOLOGY, 10(38 ), 111-131. SID. https://sid.ir/paper/174359/en

Vancouver: Copy

DOLATMAND SHAHRI NARGES, TAHMASEBI IRAJ, haghshenas masoud. Physiological response of maize seedlings (Zea mays "Mv500") to non-threshold temperatures plant under concentrations of salicylic acid. CROP PHYSIOLOGY[Internet]. 2018;10(38 ):111-131. Available from: https://sid.ir/paper/174359/en

IEEE: Copy

NARGES DOLATMAND SHAHRI, IRAJ TAHMASEBI, and masoud haghshenas, “Physiological response of maize seedlings (Zea mays "Mv500") to non-threshold temperatures plant under concentrations of salicylic acid,” CROP PHYSIOLOGY, vol. 10, no. 38 , pp. 111–131, 2018, [Online]. Available: https://sid.ir/paper/174359/en

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