Abstract
Two contrasting genotypes for root biomass i.e. RG-111 with good root, RG-1520 with poor root were studied for root, shoot growth till 90 DAS in root structures and also in field for seed yield by imposing water stress (30-90 DAS) during late rabi (2011-12). The reduction in root length was less due to stress. But root volume, dry weight and shoot growth reduced with stress and the per cent reduction was less in poorer root genotype (RG-1520) compared to good root genotype (RG-111). With drought stress in field, the growth before relieving stress, seed yield of different order branches and total seed yield reduced significantly in both genotypes. RG-1520 showed adaptation to survive drought stress in root structure and in field by increasing chlorophyll content (SCMR), less reduction in relative water content (RWC), decrease in specific leaf area (SLA) and increase in bloomcontent as that of good root genotype RG-111. But, seed yield reduction was more in poor root genotype (RG-1520) and also recorded high drought susceptibility index (DSI) as its photo assimilates were spent for its survival in stress and assimilate translocation was less for seed growth. Hence good root is important for crop survival, growth and seed yield especially in drought conditions.
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Claims 13
Claim · model-written summary
Root length had a smaller reduction under water stress.
- Taxon
- castor
Ricinus communist0 - Treatment
- stresse0
- Outcome
- root lengthe0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The reduction in root length was less due to stress”
t0“castor”
Claim · model-written summary
Root volume, root dry weight and shoot growth fell under stress, with a smaller percentage reduction in RG-1520 than RG-111.
- Taxon
- castorRicinus communist0
- Material
- RG-1520e0
- Treatment
- stresse0
- Outcome
- root volume, dry weight and shoot growthe0
- Direction
- reducede0
- Comparator
- RG-111e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root volume, dry weight and shoot growth reduced with stress and the per cent reduction was less in poorer root genotype (RG-1520) compared to good root genotype (RG-111)”
t0“castor”
Claim · model-written summary
Field drought significantly reduced growth before stress relief in both genotypes.
- Taxon
- castorRicinus communist0
- Treatment
- drought stresse0
- Outcome
- growth before relieving stresse0
- Direction
- reducede0
- Qualifier
- both genotypese0
- Setting
- fielde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With drought stress in field, the growth before relieving stress, seed yield of different order branches and total seed yield reduced significantly in both genotypes”
t0“castor”
Claim · model-written summary
Field drought significantly reduced seed yield of different-order branches in both genotypes.
- Taxon
- castorRicinus communist0
- Treatment
- drought stresse0
- Outcome
- seed yield of different order branchese0
- Direction
- reducede0
- Qualifier
- both genotypese0
- Setting
- fielde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With drought stress in field, the growth before relieving stress, seed yield of different order branches and total seed yield reduced significantly in both genotypes”
t0“castor”
Claim · model-written summary
Field drought significantly reduced total seed yield in both genotypes.
- Taxon
- castorRicinus communist0
- Treatment
- drought stresse0
- Outcome
- total seed yielde0
- Direction
- reducede0
- Qualifier
- both genotypese0
- Setting
- fielde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With drought stress in field, the growth before relieving stress, seed yield of different order branches and total seed yield reduced significantly in both genotypes”
t0“castor”
Claim · model-written summary
Under drought, RG-1520 increased chlorophyll content.
- Taxon
- castorRicinus communist0
- Material
- RG-1520e0
- Treatment
- drought stresse0
- Outcome
- chlorophyll contente0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“RG-1520 showed adaptation to survive drought stress in root structure and in field by increasing chlorophyll content (SCMR)”
t0“castor”
Claim · model-written summary
RG-1520 had less reduction in relative water content under drought.
- Taxon
- castorRicinus communist0
- Material
- RG-1520e0
- Treatment
- drought stresse0
- Outcome
- relative water contente0
- Direction
- less reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“RG-1520 showed adaptation to survive drought stress in root structure and in field by increasing chlorophyll content (SCMR), less reduction in relative water content (RWC), decrease in specific leaf area (SLA) and increase in bloomcontent as that of good root genotype RG-111”
t0“castor”
Claim · model-written summary
RG-1520 decreased specific leaf area under drought.
- Taxon
- castorRicinus communist0
- Material
- RG-1520e0
- Treatment
- drought stresse0
- Outcome
- specific leaf areae0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“RG-1520 showed adaptation to survive drought stress in root structure and in field by increasing chlorophyll content (SCMR), less reduction in relative water content (RWC), decrease in specific leaf area (SLA) and increase in bloomcontent as that of good root genotype RG-111”
t0“castor”
Claim · model-written summary
RG-1520 increased bloomcontent under drought.
- Taxon
- castorRicinus communist0
- Material
- RG-1520e0
- Treatment
- drought stresse0
- Outcome
- bloomcontente0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“RG-1520 showed adaptation to survive drought stress in root structure and in field by increasing chlorophyll content (SCMR), less reduction in relative water content (RWC), decrease in specific leaf area (SLA) and increase in bloomcontent as that of good root genotype RG-111”
t0“castor”
Claim · model-written summary
Seed yield reduction was greater in RG-1520.
- Taxon
- castorRicinus communist0
- Material
- RG-1520e0
- Outcome
- seed yield reductione0
- Direction
- moree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed yield reduction was more in poor root genotype (RG-1520)”
t0“castor”
Claim · model-written summary
RG-1520 had a high drought susceptibility index.
- Taxon
- castorRicinus communist0
- Material
- RG-1520e0
- Outcome
- drought susceptibility indexe0
- Direction
- highe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“poor root genotype (RG-1520) and also recorded high drought susceptibility index (DSI)”
t0“castor”
Claim · model-written summary
The authors attribute lower seed growth in RG-1520 to assimilates spent on survival and reduced translocation.
- Taxon
- castorRicinus communist0
- Outcome
- seed growthe0
- Qualifier
- photo assimilates were spent for its survival in stress and assimilate translocation was lesse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“its photo assimilates were spent for its survival in stress and assimilate translocation was less for seed growth”
t0“castor”
Claim · model-written summary
The authors conclude that good roots support castor survival, growth and seed yield under drought.
- Taxon
- castorRicinus communist0
- Outcome
- good root is important for crop survival, growth and seed yielde0
- Qualifier
- drought conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“good root is important for crop survival, growth and seed yield especially in drought conditions”
t0“castor”
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See all 7 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.