| The response of barley to osmotic stress during germination stage and the screening of drought resistance indicators |
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| DOI：10.7606/j.issn.1000-7601.2013.01.32 |
| Key Words: barley(Hordeum vulgare L.) germination stage osmotic stress drought resis
tance morphological parameter |
| Author Name | Affiliation | | JU Le | College of Agronomy, Shihezi University, Shihezi, Xinjiang 832003, China | | QI Juncang | College of Agronomy, Shihezi University, Shihezi, Xinjiang 832003, China | | HE Xue | College of Agronomy, Shihezi University, Shihezi, Xinjiang 832003, China | | WANG Dan | College of Agronomy, Shihezi University, Shihezi, Xinjiang 832003, China | | HOU Zhongqing | College of Agronomy, Shihezi University, Shihezi, Xinjiang 832003, China | | FU Qiang | College of Agronomy, Shihezi University, Shihezi, Xinjiang 832003, China | | XIONG Xianpeng | College of Agronomy, Shihezi University, Shihezi, Xinjiang 832003, China |
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| Abstract: |
| The response of the index of germination potential, germination rate, the ratio of root shoot, dry matter translocation rate to osmotic stress of four barley genotypes was studied with adoption of 0%, 5%, 10%,
15%, 20% (W/V) PEG8000 solution as drought stress treatment and the drought res
istance and screening index of drought resistance of four barley genotypes were
evaluated in this paper. The results showed that, along with the increase of osm
otic stress, the inhibitory effect on seed germination was significant; the resp
onse of index to water stress was conflicting; the suitable PEG8000 concentratio
n for drought resistance identification was 20%; the length of radicle, the leng
th of germ, the dry weight of germ and dry matter translocation rate could be us
ed as effective and fast indicators for drought resistance of barley during germ
ination stage; the drought-resistant ability of four genotypes was as as follow
s: Z027S078T, Z182U038V, Z037P017Q-1 and Z039P046Q. |
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