Abstract
Growth of alfalfa ( Medicago sativa L.) following the correction of water deficits will depend, in part, on the amount of plant constituents available to support regrowth and the availability of crown buds for the development of new shoots. To investigate if water deficit affected the accumulation of taproot constituents and crown bud development of alfalfa, two alfalfa cultivars were exposed to increasing levels of water deficit (100, 75, 50 25 and 0% of the replacement water requirement) during a regrowth period. Shoot growth was reduced in proportion to the level of water deficit. Taproot starch concentrations decreased while taproot soluble sugar increased in plants exposed to a water deficit. Thirty‐five d after initiation of treatments, taproot protein and amino acid concentrations were similar in all treatments that received water. Water deficit increased the relative concentration of low and middle molecular weight taproot vegetative storage proteins (VSP) and water deficits reduced the number and mass of green crown buds. Both cultivars had a similar response to water deficit for all taproot constituents and crown bud development. Further studies are required to determine the influence of increasing VSP abundance and decreasing numbers of crown buds on plant recovery following the removal of a water deficit.
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Claims 7
Claim · model-written summary
Shoot growth declined in proportion to water deficit.
- Taxon
- alfalfa
Medicago sativat0 - Treatment
- water deficite0
- Outcome
- Shoot growthe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Shoot growth was reduced in proportion to the level of water deficit.”
t0“alfalfa (Medicago sativa L.)”
Claim · model-written summary
Taproot starch concentration decreased under water deficit.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- water deficite0
- Outcome
- Taproot starch concentrationse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Taproot starch concentrations decreased while taproot soluble sugar increased in plants exposed to a water deficit.”
t0“alfalfa (Medicago sativa L.)”
Claim · model-written summary
Taproot soluble sugar increased under water deficit.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- water deficite0
- Outcome
- taproot soluble sugare0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Taproot starch concentrations decreased while taproot soluble sugar increased in plants exposed to a water deficit.”
t0“alfalfa (Medicago sativa L.)”
Claim · model-written summary
After 35 days, taproot protein and amino acid concentrations were similar across watered treatments.
- Taxon
- alfalfaMedicago sativat0
- Outcome
- taproot protein and amino acid concentrationse0
- Direction
- similare0
- Qualifier
- all treatments that received watere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thirty‐five d after initiation of treatments, taproot protein and amino acid concentrations were similar in all treatments that received water.”
t0“alfalfa (Medicago sativa L.)”
Claim · model-written summary
Water deficit increased the relative concentration of low and middle molecular weight taproot VSP.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- Water deficite0
- Outcome
- relative concentration of low and middle molecular weight taproot vegetative storage proteins (VSP)e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water deficit increased the relative concentration of low and middle molecular weight taproot vegetative storage proteins (VSP) and water deficits reduced the number and mass of green crown buds.”
t0“alfalfa (Medicago sativa L.)”
Claim · model-written summary
Water deficit reduced the number and mass of green crown buds.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- water deficitse0
- Outcome
- number and mass of green crown budse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water deficit increased the relative concentration of low and middle molecular weight taproot vegetative storage proteins (VSP) and water deficits reduced the number and mass of green crown buds.”
t0“alfalfa (Medicago sativa L.)”
Claim · model-written summary
Both cultivars responded similarly to water deficit for taproot constituents and crown bud development.
- Taxon
- alfalfaMedicago sativat0
- Outcome
- similar response to water deficit for all taproot constituents and crown bud developmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both cultivars had a similar response to water deficit for all taproot constituents and crown bud development.”
t0“alfalfa (Medicago sativa L.)”
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