Effect of Soil Salinity and Aeration Stresses on the Root and Yield Components in Wheat and Bean

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KHATAR MAHNAZ; MOHAMMADI MOHAMMAD HOSSEIN; SHEKARI FARID

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Journal: Iranian Journal of Soil and Water Research Year:2017 | Volume:48 | Issue:2 Page(s): 429-440

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Title

Effect of Soil Salinity and Aeration Stresses on the Root and Yield Components in Wheat and Bean

Author(s)

KHATAR MAHNAZ | MOHAMMADI MOHAMMAD HOSSEIN | SHEKARI FARID | Issue Writer Certificate

Keywords

Aeration stressQ1

Soil matric suctionQ1

Salinity stressQ1

YieldQ1

Abstract

The effects of Soil matric suction and salinity were investigated on the Yield components and root development of the corps, wheat and bean within greenhouse conditions. The results showed that Yield components and root dry weights of wheat and bean increased with increase in matric suction (from 2kPa) and reached their maximum values at suctions of 6-10 kPa. At suctions higher than 10kPa and under EC≤ 8dSm-1 for wheat vs. EC≤ 4dSm-1 for bean, all the Yield components of wheat and bean (except for 1000-kernel weight) decreased, while under higher salinities, their values remained nearly the same. At suctions higher than 10kPa and under all salinity levels, 1000-kernel weights of wheat and bean remained nearly constant. The salinities of low to medium levels did not clearly affect Yield and root development of either plant. Minimum root densities of wheat and bean occurred at suction 6kPa while at other points of suction (2, 10 and 33kPa), their values almost corresponded with each other. Salinity did not clearly affect wheat and bean root densities. Wheat shoot-root ratio decreased with matric suction (up to 10kPa) under EC≤ 8dSm-1, while under higher salinities, this ratio increased with suctions. At 10kPa suction, weight ratio values approached each other, then remained nearly constant at higher suctions. The results finally revealed that plant response to Salinity stress depends on aeration conditions in the root zone and the deficit in soil aeration can amplify the Salinity stress.

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APA: Copy

KHATAR, MAHNAZ, MOHAMMADI, MOHAMMAD HOSSEIN, & SHEKARI, FARID. (2017). Effect of Soil Salinity and Aeration Stresses on the Root and Yield Components in Wheat and Bean. IRANIAN JOURNAL OF SOIL AND WATER RESEARCH, 48(2 ), 429-440. SID. https://sid.ir/paper/225914/en

Vancouver: Copy

KHATAR MAHNAZ, MOHAMMADI MOHAMMAD HOSSEIN, SHEKARI FARID. Effect of Soil Salinity and Aeration Stresses on the Root and Yield Components in Wheat and Bean. IRANIAN JOURNAL OF SOIL AND WATER RESEARCH[Internet]. 2017;48(2 ):429-440. Available from: https://sid.ir/paper/225914/en

IEEE: Copy

MAHNAZ KHATAR, MOHAMMAD HOSSEIN MOHAMMADI, and FARID SHEKARI, “Effect of Soil Salinity and Aeration Stresses on the Root and Yield Components in Wheat and Bean,” IRANIAN JOURNAL OF SOIL AND WATER RESEARCH, vol. 48, no. 2 , pp. 429–440, 2017, [Online]. Available: https://sid.ir/paper/225914/en

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