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Pakistan Journal of Biological Sciences

Year: 2007 | Volume: 10 | Issue: 6 | Page No.: 910-914
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Authors

M. Jamil

Kyeong Bo Lee

Kwang Yong Jung

Deog Bae Lee

Mi Suk Han

Eui Shik Rha

Keywords

Research Article

Salt Stress Inhibits Germination and Early Seedling Growth in Cabbage (Brassica oleracea capitata L.)

M. Jamil
Department of Life Resources, College of Agriculture and Life Sciences, Sunchon National University, Suncheon 540-742, Korea
Kyeong Bo Lee
Honam Agricultural Research Institute, NICS, Iksan 570-080, Korea
Kwang Yong Jung
Honam Agricultural Research Institute, NICS, Iksan 570-080, Korea
Deog Bae Lee
National Institute of Agricultural Science and Technology, Suwon 441-857, Korea
Mi Suk Han
College of Agriculture and Life Sciences, Chonbuk National University, Jeonju, 561-756, Korea
Eui Shik Rha
Department of Life Resources, College of Agriculture and Life Sciences, Sunchon National University, Suncheon 540-742, Korea
Salinity induced inhibition in germination and early stages of cabbage (Brassica oleracea capitata L.) [two varieties (autumn cabbage and spring cabbage)] were measured in response to increasing NaCl concentration. The salinity (NaCl) concentrations in solution were 0 (control), 4.7, 9.4 and 14.1 dS m- 1. Different concentrations of salt stress had considerable effect on germination, germination rate (1/t50, where t50 is the time to 50% of germination), root and shoot lengths, root, shoot and plant fresh weight of cabbage. Final germination in cabbage (autumn cabbage and spring cabbage) showed significant inhibition with increasing salt stress up to 14.1 dS m- 1 NaCl. The required time for germination increased with increasing concentration of salt. The seedling growth was strongly inhibited by all salt levels, particularly at 14.1 dS m- 1. Furthermore Root growth was more affected then shoots growth by salt stress. Fresh weights of root, shoot and plant were also severely affected by different salinity treatments. Linear regression revealed a significant negative relationship between salinity and final germination, germination rate, root and shoot lengths and fresh weights of roots, shoots and plants.
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