Paper · 1978 · New Phytologist

THE GROWTH AND NUTRIENT CONTENT OF FESTUCA VIVIPARA (L.) SM. PLANTLETS

R. HARMER; J. A. LEE

6
claims
6
verbatim quotes
9
citations
2
research areas
✓
Open access

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

Observationobservedoriginal resultmeasured

Claim · model-written summary

Plantlet dry weight increased almost linearly over the growing season.

Organ / stage
plantletse0
Outcome
dry weighte0
Direction
increasee0

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.”

✓ located verbatim in the source · abstract, characters 186–366 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Plantlet mineral nutrient content increased with dry weight.

Organ / stage
plantletse0
Outcome
mineral nutrient contente0
Direction
increasee0

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.”

✓ located verbatim in the source · abstract, characters 186–366 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Amino acid content increased markedly with plantlet size.

Outcome
amino acide0
Direction
increasede0

Not reportedTaxonOrgan / stage

Verbatim

e0

“Their amino acid and soluble carbohydrate content also increased markedly with size.”

✓ located verbatim in the source · abstract, characters 367–451 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Soluble carbohydrate content increased markedly with plantlet size.

Outcome
soluble carbohydrate contente0
Direction
increasede0

Not reportedTaxonOrgan / stage

Verbatim

e0

“Their amino acid and soluble carbohydrate content also increased markedly with size.”

✓ located verbatim in the source · abstract, characters 367–451 · show in text ↑
Observationobservedoriginal resultmeasured

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.”

✓ located verbatim in the source · abstract, characters 452–645 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Viable plantlets had three to four times the nutrient content of F. ovina seeds.

Outcome
nutrient contente0
Value
three to four timese0
Comparator
F. ovina seedse0

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.”

✓ located verbatim in the source · abstract, characters 646–798 · show in text ↑