Abstract
Studies initiated in Spring 1998 analyzed the influence of division size, shade, and temperature on the growth rate of the ornamental grass Hakonechloa macra `Aureola' in nursery-container production. To determine the optimum division size for production, container-grown stock plants were used to make early spring divisions of four sizes (1-2, 4-6, 8-10, and 12-15 buds). Divisions were established in 325-ml pots for 1 month before being transplanted to 3.7-L nursery containers. Plants were grown outdoors and received topdressed 17-6-10 slow-release fertilizer (containing micronutrients) and drip irrigation from June through September. Average leaf area, shoot number and bud count increased linearly as division size increased, but average height remained the same between each treatment. Plants of all division sizes exhibited healthy growth, with 50% of the plants in the 4-6 buds/division treatment growing to marketable size compared to 45%, 35% and 15% in the 8-10, 12-15, and 1-2 buds/division treatments, respectively. Four shade densities (0%, 30%, 50%, and 70%) were tested to determine which promoted optimum growth. As shading increased, average shoot number per plant decreased, average height and shoot length increased and bud count remained the same. To determine the optimum growing temperature for Hakonechloa , divisions were grown in 325-ml pots under four different day/night temperatures (15/10, 21/16, 27/22, and 33/28 °C) for 12 weeks in growth chambers. Plants were fertigated daily with a 5-25-5 liquid fertilizer. Average bud count, leaf area, plant height, plant width, shoot length, and shoot number increased as temperature increased to 27/22 °C, then decreased significantly beyond this temperature optimum.
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Claims 11
Claim · model-written summary
Leaf area, shoot number and bud count increased linearly with division size.
- Taxon
- Hakonechloa macra `Aureola'
Hakonechloa macrat0 - Treatment
- division sizee0
- Outcome
- Average leaf area, shoot number and bud counte0
- Direction
- increased linearlye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Average leaf area, shoot number and bud count increased linearly as division size increased”
t0“103 Optimizing the Propagation of the Ornamental Grass Hakonechloa macra `Aureola'”
Claim · model-written summary
Average height remained the same across division sizes.
- Taxon
- Hakonechloa macra `Aureola'Hakonechloa macrat0
- Treatment
- each treatmente0
- Outcome
- average heighte0
- Direction
- remained the samee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“average height remained the same between each treatment.”
t0“103 Optimizing the Propagation of the Ornamental Grass Hakonechloa macra `Aureola'”
Claim · model-written summary
Plants of all division sizes showed healthy growth.
- Taxon
- Hakonechloa macra `Aureola'Hakonechloa macrat0
- Outcome
- healthy growthe0
- Qualifier
- all division sizese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plants of all division sizes exhibited healthy growth”
t0“103 Optimizing the Propagation of the Ornamental Grass Hakonechloa macra `Aureola'”
Claim · model-written summary
The 4-6 bud division treatment produced 50% marketable plants.
- Taxon
- Hakonechloa macra `Aureola'Hakonechloa macrat0
- Treatment
- 4-6 buds/division treatmente0
- Outcome
- growing to marketable sizee0
- Value
- 50%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“50% of the plants in the 4-6 buds/division treatment growing to marketable size compared to 45%, 35% and 15% in the 8-10, 12-15, and 1-2 buds/division treatments, respectively.”
t0“103 Optimizing the Propagation of the Ornamental Grass Hakonechloa macra `Aureola'”
Claim · model-written summary
The 8-10 bud division treatment produced 45% marketable plants.
- Taxon
- Hakonechloa macra `Aureola'Hakonechloa macrat0
- Treatment
- 8-10e0
- Outcome
- growing to marketable sizee0
- Value
- 45%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“50% of the plants in the 4-6 buds/division treatment growing to marketable size compared to 45%, 35% and 15% in the 8-10, 12-15, and 1-2 buds/division treatments, respectively.”
t0“103 Optimizing the Propagation of the Ornamental Grass Hakonechloa macra `Aureola'”
Claim · model-written summary
The 12-15 bud division treatment produced 35% marketable plants.
- Taxon
- Hakonechloa macra `Aureola'Hakonechloa macrat0
- Treatment
- 12-15e0
- Outcome
- growing to marketable sizee0
- Value
- 35%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“50% of the plants in the 4-6 buds/division treatment growing to marketable size compared to 45%, 35% and 15% in the 8-10, 12-15, and 1-2 buds/division treatments, respectively.”
t0“103 Optimizing the Propagation of the Ornamental Grass Hakonechloa macra `Aureola'”
Claim · model-written summary
The 1-2 bud division treatment produced 15% marketable plants.
- Taxon
- Hakonechloa macra `Aureola'Hakonechloa macrat0
- Treatment
- 1-2 buds/division treatmentse0
- Outcome
- growing to marketable sizee0
- Value
- 15%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“50% of the plants in the 4-6 buds/division treatment growing to marketable size compared to 45%, 35% and 15% in the 8-10, 12-15, and 1-2 buds/division treatments, respectively.”
t0“103 Optimizing the Propagation of the Ornamental Grass Hakonechloa macra `Aureola'”
Claim · model-written summary
Increasing shade reduced average shoot number per plant.
- Taxon
- Hakonechloa macra `Aureola'Hakonechloa macrat0
- Treatment
- shading increasede0
- Outcome
- average shoot number per plante0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As shading increased, average shoot number per plant decreased, average height and shoot length increased and bud count remained the same.”
t0“103 Optimizing the Propagation of the Ornamental Grass Hakonechloa macra `Aureola'”
Claim · model-written summary
Increasing shade increased average height and shoot length.
- Taxon
- Hakonechloa macra `Aureola'Hakonechloa macrat0
- Treatment
- shading increasede0
- Outcome
- average height and shoot lengthe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As shading increased, average shoot number per plant decreased, average height and shoot length increased and bud count remained the same.”
t0“103 Optimizing the Propagation of the Ornamental Grass Hakonechloa macra `Aureola'”
Claim · model-written summary
Bud count remained unchanged as shade increased.
- Taxon
- Hakonechloa macra `Aureola'Hakonechloa macrat0
- Treatment
- shading increasede0
- Outcome
- bud counte0
- Direction
- remained the samee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As shading increased, average shoot number per plant decreased, average height and shoot length increased and bud count remained the same.”
t0“103 Optimizing the Propagation of the Ornamental Grass Hakonechloa macra `Aureola'”
Claim · model-written summary
Six growth traits rose as temperature increased to 27/22 °C, then declined significantly above it.
- Taxon
- Hakonechloa macra `Aureola'Hakonechloa macrat0
- Treatment
- temperature increased to 27/22 °Ce0
- Outcome
- Average bud count, leaf area, plant height, plant width, shoot length, and shoot numbere0
- Direction
- increasede0
- Qualifier
- then decreased significantly beyond this temperature optimume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Average bud count, leaf area, plant height, plant width, shoot length, and shoot number increased as temperature increased to 27/22 °C, then decreased significantly beyond this temperature optimum.”
t0“103 Optimizing the Propagation of the Ornamental Grass Hakonechloa macra `Aureola'”