Effects of plant density and water stress on leaf water potential and soil water content in the mono and mixed culture of Medicago sativa L. and Bromus tomentellus Boiss

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BARATI SOUSAN; BASSIRI MEHDI; VAHABI MOHAMMAD REZA; MOSADEGHI MOHAMMAD REZA

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Journal: Journal of Rangeland Year:2019 | Volume:13 | Issue:1 Page(s): 65-75

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Title

Effects of plant density and water stress on leaf water potential and soil water content in the mono and mixed culture of Medicago sativa L. and Bromus tomentellus Boiss

Author(s)

BARATI SOUSAN | BASSIRI MEHDI | VAHABI MOHAMMAD REZA | MOSADEGHI MOHAMMAD REZA | Issue Writer Certificate

Keywords

Water stressQ2

Leaf water potentialQ2

Soil water contentQ1

CompetitionQ1

Abstract

The effects of plant density and Water stress on Leaf water potential and Soil water content of Medicago sativa and Bromus tomentellus were studied. A greenhouse experiment was conducted at the Isfahan University of Technology. The experiment included 18 treatments, three crop compositions (M. sativa, B. tomentellus or a mixture of the two), two plant density levels (2 and 4 plants), three watering regimes and four replicates, arranged in a completely randomized block design. Results showed that Leaf water potential of M. sativa and B. tomentellus decreased significantly (p < 0. 05) with increasing drought stress and plant density in all treatments. The Leaf water potential values of the studied species were different. In mixed cropping, the Leaf water potential of B. tomentellus was more negative than M. Sativa due to its drought resistant. Also, with increasing soil depth, Soil water content decreased in mixed cropping compared to M. sativa mono-cropping and B. tomentellus mono-cropping. B. tomentellus with fibrous root system could only absorb surface Soil water content but M. sativa with a well-developed taproot system could absorb a greater amount of Soil water content of deep soil. Therefore, the two species functioned complementarily and increased the efficiency of the mixed cropping.

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APA: Copy

BARATI, SOUSAN, BASSIRI, MEHDI, VAHABI, MOHAMMAD REZA, & MOSADEGHI, MOHAMMAD REZA. (2019). Effects of plant density and water stress on leaf water potential and soil water content in the mono and mixed culture of Medicago sativa L. and Bromus tomentellus Boiss. RANGELAND, 13(1 ), 65-75. SID. https://sid.ir/paper/398572/en

Vancouver: Copy

BARATI SOUSAN, BASSIRI MEHDI, VAHABI MOHAMMAD REZA, MOSADEGHI MOHAMMAD REZA. Effects of plant density and water stress on leaf water potential and soil water content in the mono and mixed culture of Medicago sativa L. and Bromus tomentellus Boiss. RANGELAND[Internet]. 2019;13(1 ):65-75. Available from: https://sid.ir/paper/398572/en

IEEE: Copy

SOUSAN BARATI, MEHDI BASSIRI, MOHAMMAD REZA VAHABI, and MOHAMMAD REZA MOSADEGHI, “Effects of plant density and water stress on leaf water potential and soil water content in the mono and mixed culture of Medicago sativa L. and Bromus tomentellus Boiss,” RANGELAND, vol. 13, no. 1 , pp. 65–75, 2019, [Online]. Available: https://sid.ir/paper/398572/en

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