Abstract
SUMMARY The nutrient content of Festuca vivipara (L.) Sm. plantlets from a site in the English Lake District were compared with that of seeds of the closely related species, F. ovina L. The almost linear increase in dry weight of plantlets throughout the growing season was associated with an increase in their mineral nutrient content derived from the parent plant. Their amino acid and soluble carbohydrate content also increased markedly with size. The relatively high levels of free amino acids and soluble carbohydrates in viable plant‐lets contrasts with the generally low levels of these compounds usually found in mature seed of grasses. Viable plantlets contained three to four times the nutrient content of F. ovina seeds resulting principally from the larger dry weight of the plantlets. The growth and survival of plantlets is discussed in relation to the success of vivipary as a method of reproduction in arctic‐alpine environments.
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Claims 6
Claim · model-written summary
Plantlet dry weight increased almost linearly over the growing season.
Not reportedTaxon
Verbatim
e0“The almost linear increase in dry weight of plantlets throughout the growing season was associated with an increase in their mineral nutrient content derived from the parent plant.”
Claim · model-written summary
Plantlet mineral nutrient content increased with dry weight.
Not reportedTaxon
Verbatim
e0“The almost linear increase in dry weight of plantlets throughout the growing season was associated with an increase in their mineral nutrient content derived from the parent plant.”
Claim · model-written summary
Amino acid content increased markedly with plantlet size.
Not reportedTaxonOrgan / stage
Verbatim
e0“Their amino acid and soluble carbohydrate content also increased markedly with size.”
Claim · model-written summary
Soluble carbohydrate content increased markedly with plantlet size.
Not reportedTaxonOrgan / stage
Verbatim
e0“Their amino acid and soluble carbohydrate content also increased markedly with size.”
Claim · model-written summary
Viable plantlets had high free amino acids and soluble carbohydrates compared with mature grass seeds.
- Outcome
- free amino acids and soluble carbohydratese0
- Direction
- highe0
- Comparator
- mature seed of grassese0
Not reportedTaxon
Verbatim
e0“The relatively high levels of free amino acids and soluble carbohydrates in viable plant‐lets contrasts with the generally low levels of these compounds usually found in mature seed of grasses.”
Claim · model-written summary
Viable plantlets had three to four times the nutrient content of F. ovina seeds.
Not reportedTaxon
Verbatim
e0“Viable plantlets contained three to four times the nutrient content of F. ovina seeds resulting principally from the larger dry weight of the plantlets.”