Abstract
Flowering-size Nerine bowdenii bulbs were sampled from a commercial planting at 2-week intervals from 13 Aug. 1991 to 14 June 1992. They were dissected, and the following variables were recorded: 1) number and dry weight of fully sheathing leaf bases or leaves of each growth unit, 2) length and dry weight of foliage leaves, 3) fresh weight of outermost inflorescence, and 4) dry weight of daughter bulbs. Bulb organs that served as sinks and sources changed as the bulb progressed in its growth and developmental cycle. Before the new foliage provided photosynthates, growth depended on reserves deposited and stored in leaf bases during the preceding seasons. Reserves were used for the development of new leaves (foliage and bases), roots, and daughter bulb enlargement. Once the foliage became the photosynthate source, reserves were stored in old and new leaf bases. The inflorescence became the major sink when elongation of the scape initiated. Thereafter, daughter bulbs became the dominant sinks, receiving photosynthates from the senescence foliage and the reserves stored in leaf bases. The decrease in dry weight of the leaf bases was prominent in bulbs that remained in situ.
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Claims 7
Claim · model-written summary
Bulb organs serving as sinks and sources changed through development.
- Taxon
- Nerine bowdenii
Nerine bowdeniit0 - Organ / stage
- Bulb organse0
- Outcome
- sinks and sources changede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bulb organs that served as sinks and sources changed as the bulb progressed in its growth and developmental cycle.”
t0“Nerine bowdenii”
Claim · model-written summary
Before new foliage supplied photosynthates, growth depended on stored leaf-base reserves.
- Taxon
- Nerine bowdeniiNerine bowdeniit0
- Organ / stage
- leaf basese0
- Outcome
- growth depended on reservese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Before the new foliage provided photosynthates, growth depended on reserves deposited and stored in leaf bases during the preceding seasons.”
t0“Nerine bowdenii”
Claim · model-written summary
Stored reserves supported new leaves, roots and daughter-bulb enlargement.
- Taxon
- Nerine bowdeniiNerine bowdeniit0
- Outcome
- development of new leaves (foliage and bases), roots, and daughter bulb enlargemente0
- Qualifier
- Reserves were usede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Reserves were used for the development of new leaves (foliage and bases), roots, and daughter bulb enlargement.”
t0“Nerine bowdenii”
Claim · model-written summary
Once foliage became a photosynthate source, reserves were stored in old and new leaf bases.
- Taxon
- Nerine bowdeniiNerine bowdeniit0
- Outcome
- reserves were stored in old and new leaf basese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Once the foliage became the photosynthate source, reserves were stored in old and new leaf bases.”
t0“Nerine bowdenii”
Claim · model-written summary
The inflorescence became the major sink when scape elongation began.
- Taxon
- Nerine bowdeniiNerine bowdeniit0
- Organ / stage
- inflorescencee0
- Outcome
- inflorescence became the major sinke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The inflorescence became the major sink when elongation of the scape initiated.”
t0“Nerine bowdenii”
Claim · model-written summary
Daughter bulbs subsequently became dominant sinks.
- Taxon
- Nerine bowdeniiNerine bowdeniit0
- Organ / stage
- daughter bulbse0
- Outcome
- daughter bulbs became the dominant sinkse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thereafter, daughter bulbs became the dominant sinks, receiving photosynthates from the senescence foliage and the reserves stored in leaf bases.”
t0“Nerine bowdenii”
Claim · model-written summary
Leaf-base dry weight decreased prominently in bulbs remaining in situ.
- Taxon
- Nerine bowdeniiNerine bowdeniit0
- Outcome
- dry weight of the leaf basese0
- Direction
- decreasee0
- Setting
- in situe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The decrease in dry weight of the leaf bases was prominent in bulbs that remained in situ.”
t0“Nerine bowdenii”