Abstract
In this paper,taken 16 different sources of faba bean as tested materials,under different degree drought stress,the morphological indexes of faba bean seedling stage and the activities of their leaf antioxidative enzymes were studied by pot experiments,and the relationships of those indexes with drought stress were investigated. The results showed that drought stress inhibited the growth of the faba bean plants,with the increase of drought stress,inhibitory effect was obvious,and there were significant differences between varieties( P 0.05). The inhibitory effect were significant to the plant height and stem diameter of sensitive faba bean under the mild stress,and the leaves at the bottom of plant dried,affecting the plant normal growth,while the drought tolerance and drought resistant varieties of faba bean plants grew well and had no significant inhibition. Under the severe stress,the drought stress index of drought resistant varieties of faba bean was low,and drought resistance coefficient was higher,which showed the obvious drought resistance ability,while drought faba bean also showed weak drought resistance since the drought degree. The protective enzyme activities of three kinds along with the increase of drought stress,on the whole,presented the upward trend first,then lowered,and SOD activity of strong drought resistance varieties was significantly higher than that of weak drought resistance varieties. Under mild stress( drought 7 d),protective enzymes SOD,POD and CAT activity showed ascendant trend,while severe stress( drought 14 d),the protective enzyme activities of three kinds were a downward trend,of which the enzyme activities of SOD and CAT fall faster and was lower than that of control,with significant difference( P 0. 05); The activity of POD decreased more slowly,which was still higher than that of control. In a word,SOD,CAT activity played an important role in resisting mild drought stress,and POD activity had more great effect under severe stress.
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Claims 11
Claim · model-written summary
Drought increasingly inhibited faba bean growth, with differences among varieties.
- Taxon
- faba bean
Vicia fabae0 - Treatment
- drought stresse0
- Outcome
- growthe0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“drought stress inhibited the growth of the faba bean plants,with the increase of drought stress,inhibitory effect was obvious,and there were significant differences between varieties( P 0.05)”
Claim · model-written summary
Mild stress significantly inhibited height and stem diameter in sensitive faba bean.
- Taxon
- faba beanVicia fabae0
- Material
- sensitive faba beane0
- Treatment
- mild stresse0
- Outcome
- plant height and stem diametere0
- Direction
- inhibitorye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The inhibitory effect were significant to the plant height and stem diameter of sensitive faba bean under the mild stress”
Claim · model-written summary
Mild stress dried lower leaves of sensitive plants.
- Taxon
- Faba BeanVicia fabat0
- Treatment
- mild stresse1
- Outcome
- leaves at the bottom of plant driede0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the leaves at the bottom of plant dried”
e1“under the mild stress”
t0“Faba Bean”
Claim · model-written summary
Drought tolerant varieties grew well without significant inhibition under mild stress.
- Taxon
- faba beanVicia fabae0
- Material
- drought resistant varietiese0
- Treatment
- mild stresse1
- Outcome
- plants grew welle0
- Direction
- no significant inhibitione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“drought tolerance and drought resistant varieties of faba bean plants grew well and had no significant inhibition”
e1“under the mild stress”
Claim · model-written summary
Under severe stress resistant varieties had a low drought stress index.
- Taxon
- faba beanVicia fabae0
- Material
- drought resistant varietiese0
- Treatment
- severe stresse0
- Outcome
- drought stress indexe0
- Direction
- lowe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under the severe stress,the drought stress index of drought resistant varieties of faba bean was low”
Claim · model-written summary
Under severe stress resistant varieties had a higher drought resistance coefficient.
- Taxon
- faba beanVicia fabat0
- Outcome
- drought resistance coefficiente0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“drought resistance coefficient was higher”
t0“Faba Bean”
Claim · model-written summary
Protective enzyme activities first rose and then fell as drought increased.
- Taxon
- faba beanVicia fabat0
- Treatment
- drought stresse0
- Outcome
- protective enzyme activitiese0
- Direction
- upward trend first,then lowerede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The protective enzyme activities of three kinds along with the increase of drought stress,on the whole,presented the upward trend first,then lowered”
t0“Faba Bean”
Claim · model-written summary
SOD activity was higher in strongly resistant than weakly resistant varieties.
- Taxon
- faba beanVicia fabat0
- Material
- strong drought resistance varietiese0
- Gene
- SODe0
- Outcome
- SOD activitye0
- Direction
- highere0
- Comparator
- weak drought resistance varietiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SOD activity of strong drought resistance varieties was significantly higher than that of weak drought resistance varieties”
t0“Faba Bean”
Claim · model-written summary
Mild drought increased SOD, POD and CAT activities.
- Taxon
- faba beanVicia fabat0
- Treatment
- mild stress( drought 7 d)e0
- Gene
- SOD,POD and CATe0
- Outcome
- SOD,POD and CAT activitye0
- Direction
- ascendant trende0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under mild stress( drought 7 d),protective enzymes SOD,POD and CAT activity showed ascendant trend”
t0“Faba Bean”
Claim · model-written summary
Severe drought decreased SOD and CAT below control.
- Taxon
- faba beanVicia fabat0
- Treatment
- severe stress( drought 14 d)e0
- Gene
- SOD and CATe0
- Outcome
- enzyme activities of SOD and CATe0
- Direction
- lowere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“severe stress( drought 14 d),the protective enzyme activities of three kinds were a downward trend,of which the enzyme activities of SOD and CAT fall faster and was lower than that of control,with significant difference( P 0. 05)”
t0“Faba Bean”
Claim · model-written summary
Severe drought reduced POD activity more slowly, leaving it above control.
- Taxon
- Faba BeanVicia fabat0
- Treatment
- severe stresse1
- Gene
- PODe0
- Outcome
- activity of PODe0
- Direction
- decreased more slowlye0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The activity of POD decreased more slowly,which was still higher than that of control”
e1“severe stress( drought 14 d)”
t0“Faba Bean”
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