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Investigation the effect of drought tension on the germination indices of promising lines of canola (Brasica napus L.)
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H. Chegeni   , M. Goldani * , A. Shirani rad , M. Kafi |
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Abstract: (3523 Views) |
| In order to investigate lines canola germination indices under drought tension conditions this experiment as factorial in a completely randomized design with four replications was conducted in 2013. Promising lines in twelve levels BAL1, BAL2, BAL3, BAL6, BAL8, BAL9, BAL11, BAL15, L72, L109, R15 and Okapi and drought tension in three levels zero, -4 and -8 bar with a solution of PEG 6000 as first and second factors were considered. The maximum percentage of germination was related to line L109 and non-tension conditions by 99 percentage, also line L109 in drought tension -4 had germination and daily germination rate higher than standard, as well seed vigor index decreased significantly with increasing severity of drought tension. Results showed that the maximum length of the root by 5.2 cm compared with the control of drought tension -4 and L109 line. So, according to the direct relationship of increasing mean germination with the root length, highest average germination compared to the control was reported 11/14 cm for L109 line. Those seeds which are able to have acceptable germination in drought tension conditions, in arid and semi-arid regions, will have great value because they are more likely to move from this stage. |
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| Keywords: Seed vigor index, Line, Percentage and Germination rate. |
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Full-Text [PDF 469 kb]
(2754 Downloads)
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Type of Study: Applicable |
Subject:
Crop Physiology
Received: 2015/07/26 | Accepted: 2015/07/26 | Published: 2015/07/26
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