EVALUATION OF MORPHOLOGICAL AND SELECTION OF TOLERANT GENOTYPES IN ALFALFA (MEDICAGO SATIVA L.) IN RESPONSE TO OSMOTIC STRESS

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AKHOUNDI M.; SAFARNEZHAD A.; LAHOUTI M.

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Journal: Year:2004 | Volume:17 | Issue:(62 IN AGRONOMY AND HORTICULTURE) Page(s): 50-57

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Title

EVALUATION OF MORPHOLOGICAL AND SELECTION OF TOLERANT GENOTYPES IN ALFALFA (MEDICAGO SATIVA L.) IN RESPONSE TO OSMOTIC STRESS

Author(s)

AKHOUNDI M. | SAFARNEZHAD A. | LAHOUTI M. | Issue Writer Certificate

Keywords

DROUGHT STRESSQ2

PEGQ3

ALFALFAQ4

MEDICAGO SATIVA L.Q4

MORPHOLOGYQ2

Abstract

DROUGHT STRESS is one of the most important environmental factors in reduce of growth, development and production of plants. ALFALFA is a important forage plants in farms and rang lands. Suitable germination and drought tolerance ALFALFA by selection of drought tolerant genotypes is very important .In order to this ,in the first experiment, influence of DROUGHT STRESS on percent and rate of germination, radicle and plumule growth of eight ALFALFA accession namely, Baghdadi, Nikshahri, Ghareh,Yazdi, Siriver, Sequel, Ranger and Kodi have been measured. Stress was applied with PEG6000, and drought potentials were: Zero (control),-4,-8 and -12 bar. The data showed that intensity of reduction in different accision is was not the same in response to DROUGHT STRESS. There are the lowest change percentage in Yazdi and Nikshahri accessions and the highest in Ranger accession in the most of characters.In the second experiment, the selected accession namely,Yazdi, Nikshahri and Ranger were grown in hydroponics culture with different osmotic potentials (PEG6000).After 4 weeks, different parameters such as: Root length, shoot length, root length to shoot length ratio, number and surface of leaves, root, shoot and leaf dry weight were measured. Genotypes survived in high potential (-12 bar),were transferred to soil to set seeds.The result showed with increasing DROUGHT STRESS, above parameters decreased, while root length to shoot length ratio was increased. Yazdi ALFALFA was the most tolerant and Ranger was the most sensitive accession in response to osmotic stress.

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APA: Copy

AKHOUNDI, M., SAFARNEZHAD, A., & LAHOUTI, M.. (2004). EVALUATION OF MORPHOLOGICAL AND SELECTION OF TOLERANT GENOTYPES IN ALFALFA (MEDICAGO SATIVA L.) IN RESPONSE TO OSMOTIC STRESS. PAJOUHESH-VA-SAZANDEGI, 17((62 IN AGRONOMY AND HORTICULTURE)), 50-57. SID. https://sid.ir/paper/364342/en

Vancouver: Copy

AKHOUNDI M., SAFARNEZHAD A., LAHOUTI M.. EVALUATION OF MORPHOLOGICAL AND SELECTION OF TOLERANT GENOTYPES IN ALFALFA (MEDICAGO SATIVA L.) IN RESPONSE TO OSMOTIC STRESS. PAJOUHESH-VA-SAZANDEGI[Internet]. 2004;17((62 IN AGRONOMY AND HORTICULTURE)):50-57. Available from: https://sid.ir/paper/364342/en

IEEE: Copy

M. AKHOUNDI, A. SAFARNEZHAD, and M. LAHOUTI, “EVALUATION OF MORPHOLOGICAL AND SELECTION OF TOLERANT GENOTYPES IN ALFALFA (MEDICAGO SATIVA L.) IN RESPONSE TO OSMOTIC STRESS,” PAJOUHESH-VA-SAZANDEGI, vol. 17, no. (62 IN AGRONOMY AND HORTICULTURE), pp. 50–57, 2004, [Online]. Available: https://sid.ir/paper/364342/en

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