Abstract
The aim of this research was to determine the effect of cold stress on chlorophyll content, proline accumulation and the cell membrane stability of 15 bread wheat (Triticum aestivum L.) at two stage of growth (2 leaf stage and 4 leaf stage). Experiment was carried out in complete block design with tree replications at year 2009 in west Azerbaijan Agriculture science and research center laboratory. 15 cultivar (five genotypes with types winters names Sayson, Martin, Gaskoghen, C-82-12, C-81-14, 5 genotype with type intermediate including Alvand, Mahdavi, Zarrin, Marvdasht, Toos and five genotypes with type spring names Shiraz, Pishtaz, M-79-7, M-81-13 and Kavir) were sown in lab condition . According to the results, cold stress had a significant effect on chlorophyll a and b, total chlorophyll, prolin content and cell membrane stability. At the other hand variety and growing stage have significant effect on treats (P>0.01). The result showed that the M-81-13 with 53.05 mΩ EC has the highest cell membrane stability and the lowest EC was obtaining from gaskoghen with 18.987 mΩ. Also M-79-7 with 2.315 mg chlorophyll a per 1 g leaf fresh weight has highest chlorophyll content. It was determining the ratio of maximal chlorophyll content after cold stress is reliable and a method to determine the frost hardness of wheat variety. The proline content of the leaf however increased in both growth stages in all variety of wheat. Gaskoghen with 0.340 (μg/0.5 g dwt) in 2 leaf growing stage had the highest rate of proline amino acid and Marvdasht variety from inter mediate type in 4 leaf growing stage with 0.003 (μg/0.5 g dwt) had the lowest rate of proline. Key words: Wheat variety, chlorophyll content and proline.
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Claims 9
Claim · model-written summary
Cold stress significantly affected chlorophyll a and b, total chlorophyll, proline and membrane stability.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- cold stresse0
- Outcome
- chlorophyll a and b, total chlorophyll, prolin content and cell membrane stabilitye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cold stress had a significant effect on chlorophyll a and b, total chlorophyll, prolin content and cell membrane stability”
t0“Effect of cold stress on cell membrane stability, chlorophyll a and b contain and proline accumulation in wheat (Triticum aiestivum L.) variety”
Claim · model-written summary
Variety and growth stage significantly affected the studied traits.
- Taxon
- wheatTriticum aestivumt0
- Material
- varietye0
- Organ / stage
- growing stagee0
- Outcome
- treatse0
- Value
- P>0.01e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“variety and growing stage have significant effect on treats (P>0.01)”
t0“Effect of cold stress on cell membrane stability, chlorophyll a and b contain and proline accumulation in wheat (Triticum aiestivum L.) variety”
Claim · model-written summary
M-81-13 had the highest cell membrane stability, with 53.05 mΩ EC.
- Taxon
- wheatTriticum aestivumt0
- Material
- M-81-13e0
- Outcome
- cell membrane stabilitye0
- Direction
- higheste0
- Value
- 53.05 mΩe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“M-81-13 with 53.05 mΩ EC has the highest cell membrane stability”
t0“Effect of cold stress on cell membrane stability, chlorophyll a and b contain and proline accumulation in wheat (Triticum aiestivum L.) variety”
Claim · model-written summary
Gaskoghen had the lowest EC, 18.987 mΩ.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the lowest EC was obtaining from gaskoghen with 18.987 mΩ”
t0“Effect of cold stress on cell membrane stability, chlorophyll a and b contain and proline accumulation in wheat (Triticum aiestivum L.) variety”
Claim · model-written summary
M-79-7 had the highest chlorophyll a content, 2.315 mg per 1 g leaf fresh weight.
- Taxon
- wheatTriticum aestivumt0
- Material
- M-79-7e0
- Outcome
- chlorophyll contente0
- Direction
- higheste0
- Value
- 2.315 mg chlorophyll a per 1 g leaf fresh weighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“M-79-7 with 2.315 mg chlorophyll a per 1 g leaf fresh weight has highest chlorophyll content”
t0“Effect of cold stress on cell membrane stability, chlorophyll a and b contain and proline accumulation in wheat (Triticum aiestivum L.) variety”
Claim · model-written summary
The maximal chlorophyll ratio after cold stress was judged a reliable frost-hardiness measure.
- Taxon
- wheatTriticum aestivume0
- Outcome
- frost hardnesse0
- Qualifier
- reliablee0
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ratio of maximal chlorophyll content after cold stress is reliable and a method to determine the frost hardness of wheat variety”
Claim · model-written summary
Leaf proline increased after cold stress at both growth stages in all wheat varieties.
- Taxon
- wheatTriticum aestivume0
- Organ / stage
- both growth stagese0
- Treatment
- cold stresst0
- Outcome
- proline content of the leafe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The proline content of the leaf however increased in both growth stages in all variety of wheat”
t0“Effect of cold stress on cell membrane stability, chlorophyll a and b contain and proline accumulation in wheat (Triticum aiestivum L.) variety”
Claim · model-written summary
Gaskoghen had the highest proline at the 2 leaf stage, 0.340 μg/0.5 g dwt.
- Taxon
- wheatTriticum aestivumt0
- Material
- Gaskoghene0
- Organ / stage
- 2 leaf growing stagee0
- Outcome
- rate of proline amino acide0
- Direction
- higheste0
- Value
- 0.340 (μg/0.5 g dwt)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Gaskoghen with 0.340 (μg/0.5 g dwt) in 2 leaf growing stage had the highest rate of proline amino acid”
t0“Effect of cold stress on cell membrane stability, chlorophyll a and b contain and proline accumulation in wheat (Triticum aiestivum L.) variety”
Claim · model-written summary
Marvdasht had the lowest proline at the 4 leaf stage, 0.003 μg/0.5 g dwt.
- Taxon
- wheatTriticum aestivumt0
- Material
- Marvdashte0
- Organ / stage
- 4 leaf growing stagee0
- Outcome
- rate of prolinee0
- Direction
- loweste0
- Value
- 0.003 (μg/0.5 g dwt)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Marvdasht variety from inter mediate type in 4 leaf growing stage with 0.003 (μg/0.5 g dwt) had the lowest rate of proline”
t0“Effect of cold stress on cell membrane stability, chlorophyll a and b contain and proline accumulation in wheat (Triticum aiestivum L.) variety”
The same questions in other papers
cold · physiology: osmolytes · Triticum aestivum (wheat)Positive and negative results
5 papers in the same direction as this paper · 5 in the opposite direction
- no effect
- no effect
- negative
7 papers more in this group
See all 11 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.