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| Analysis on Related Physiological Indexes of Pepper with Different Hair Characteristics under Drought Stress |
| SHANG Hong-qin1, LIU Jian-ping2* |
| 1Department of Life Science, Heze College, Heze 274015, Shandong, China; 2College of Horticulture, Qingdao Agricultural University, Qingdao 266109, Shandong, China |
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Abstract
Taking three closely relative pepper（Capsicum annuum L.）gene strains with
different hair characteristics as test materials, pot experiment was conducted to study
the effect of drought stress on physiological indexes of pepper with different degree of
hairs. The total biomass was also determined. The result showed, contrast to the check,
the contents of free proline（Pro）of pepper with different degree of hairs under drought
stress was significantly increased. The proline contents of more hairs strains increased
17.98 times, which was higher than that of the others. The malomdiadehyde contents of
pepper leaves was significantly increased, the increment of more hairs pepper strains was
29.13 %, which was the least. The activities of superoxide dismutas（SOD）and peroxidase（
POD）were increased obviously. The increment of the more hairs pepper strains were higher
than that of the other strains. The reduced rate of the total plant biomass of these 3
closely related pepper gene strains under drought stress was significantly different. The
reduced rate of more hairs pepper strains was 29.98 %, which was the least.
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Received: 25 January 2010
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Corresponding Authors:
LIU Jian-ping
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