EFFECT OF POTASSIUM AND DROUGHT STRESS ON GROWTH INDICES AND MINERAL CONTENT OF SAFFLOWER LEAF

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AZIZABADI E.; GOLCHIN A.; DELAVAR M.A.

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Journal: SOIL AND PLANT INTERACTIONS (JOURNAL OF SCIENCE AND TECHNOLOGY OF GREENHOUSE CULTURE) Year:2014 | Volume:5 | Issue:19 Page(s): 65-79

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Title

EFFECT OF POTASSIUM AND DROUGHT STRESS ON GROWTH INDICES AND MINERAL CONTENT OF SAFFLOWER LEAF

Author(s)

AZIZABADI E. | GOLCHIN A. | DELAVAR M.A. | Issue Writer Certificate

Keywords

AVAILABLE WATER DEFICITQ3

GROWTH TRAITSQ3

LEAF CHEMICAL COMPOSITIONQ3

Abstract

To study the effects of potassium (K) and drought stress on growth indices and mineral content of safflower leaf, a factorial experiment with 12 treatments and three replications was performed, using a completely randomized design, in the greenhouse of Soil Science Department, Zanjan University, Iran. The experimental treatments were a combination of four levels of K (80, 130, 180 and 230 mg/kg) and three levels of drought stress (irrigation at 100% FC, 60% FC and 30% FC) applied to the pots containing 5 kg soil. Results showed that drought stress reduced plant height, leaf area, and dry weight of aerial parts and relative water content of leaf but increased the chlorophyll index of leaves. Drought stress also decreased concentration of zinc (Zn), manganese (Mn), copper (Cu), phosphorus (P), nitrogen (N) and calcium (Ca) in leaves but increased iron (Fe) and K content of leaves. Application of K increased all the measured growth indices. It also increased concentration of K, Fe and Cu and decreased concentration of N, P, Ca, Mn and Zn in leaves. In general, drought stress reduced dry matter production and disturbed ionic balance in safflower. But, application of K reduced the deteriorative effects of drought stress on safflower.

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APA: Copy

AZIZABADI, E., GOLCHIN, A., & DELAVAR, M.A.. (2014). EFFECT OF POTASSIUM AND DROUGHT STRESS ON GROWTH INDICES AND MINERAL CONTENT OF SAFFLOWER LEAF. SOIL AND PLANT INTERACTIONS (JOURNAL OF SCIENCE AND TECHNOLOGY OF GREENHOUSE CULTURE), 5(19), 65-79. SID. https://sid.ir/paper/226311/en

Vancouver: Copy

AZIZABADI E., GOLCHIN A., DELAVAR M.A.. EFFECT OF POTASSIUM AND DROUGHT STRESS ON GROWTH INDICES AND MINERAL CONTENT OF SAFFLOWER LEAF. SOIL AND PLANT INTERACTIONS (JOURNAL OF SCIENCE AND TECHNOLOGY OF GREENHOUSE CULTURE)[Internet]. 2014;5(19):65-79. Available from: https://sid.ir/paper/226311/en

IEEE: Copy

E. AZIZABADI, A. GOLCHIN, and M.A. DELAVAR, “EFFECT OF POTASSIUM AND DROUGHT STRESS ON GROWTH INDICES AND MINERAL CONTENT OF SAFFLOWER LEAF,” SOIL AND PLANT INTERACTIONS (JOURNAL OF SCIENCE AND TECHNOLOGY OF GREENHOUSE CULTURE), vol. 5, no. 19, pp. 65–79, 2014, [Online]. Available: https://sid.ir/paper/226311/en

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