Abstract
The propagation of pines through cuttings has become a commercial means of rapidly multiplying improved genetic material for operational use in forestry companies. Cuttings of pines are produced entirely in containers in South Africa. Containers, however, can negatively affect plant growth and post-planting field performance if plants are allowed to grow beyond the constraints of the root cavity. The aim of this study was to determine the effects of tray type and plant age on the field performance of Pinus patula rooted cuttings. Field assessments indicate that the combination of greater root mass at planting and increased media volumes improved field growth with the most significant response observed in stem diameter. Factors responsible for producing greater root dry mass at planting were increased media volume and a longer raising period in the nursery. Seven years after planting, cuttings with the largest root mass at planting (0.560 g) were 27% larger in individual tree volume than trees produced from cuttings having the smallest root mass at planting (0.159 g). Field survival was exceptionally good and did not differ among nursery treatments.
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Claims 5
Claim · model-written summary
Greater root mass at planting and increased media volume improved field growth, particularly stem diameter.
- Taxon
- Pinus patula
Pinus patulae1 - Treatment
- increased media volumese0
- Outcome
- field growthe0
- Direction
- improvede0
- Qualifier
- greater root mass at plantinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the combination of greater root mass at planting and increased media volumes improved field growth with the most significant response observed in stem diameter”
e1“Pinus patula rooted cuttings”
Claim · model-written summary
Increased media volume produced greater root dry mass at planting.
- Taxon
- Pinus patulaPinus patulae1
- Treatment
- increased media volumee0
- Outcome
- root dry mass at plantinge0
- Direction
- greatere0
- Setting
- nurserye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Factors responsible for producing greater root dry mass at planting were increased media volume and a longer raising period in the nursery”
e1“Pinus patula rooted cuttings”
Claim · model-written summary
A longer nursery raising period produced greater root dry mass at planting.
- Taxon
- Pinus patulaPinus patulae1
- Treatment
- a longer raising periode0
- Outcome
- root dry mass at plantinge0
- Direction
- greatere0
- Setting
- nurserye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Factors responsible for producing greater root dry mass at planting were increased media volume and a longer raising period in the nursery”
e1“Pinus patula rooted cuttings”
Claim · model-written summary
After seven years, cuttings with the largest root mass at planting had 27% greater individual tree volume than those with the smallest root mass.
- Taxon
- Pinus patulaPinus patulae1
- Material
- cuttings with the largest root mass at plantinge0
- Outcome
- individual tree volumee0
- Direction
- largere0
- Value
- 27%e0
- Qualifier
- Seven years after plantinge0
- Comparator
- trees produced from cuttings having the smallest root mass at plantinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seven years after planting, cuttings with the largest root mass at planting (0.560 g) were 27% larger in individual tree volume than trees produced from cuttings having the smallest root mass at planting (0.159 g)”
e1“Pinus patula rooted cuttings”
Claim · model-written summary
Field survival did not differ among nursery treatments.
- Taxon
- Pinus patulaPinus patulae1
- Treatment
- nursery treatmentse0
- Outcome
- Field survivale0
- Direction
- did not differe0
- Comparator
- nursery treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field survival was exceptionally good and did not differ among nursery treatments”
e1“Pinus patula rooted cuttings”
The same questions in other papers
transplanting · survival · Pinus patula (Mexican weeping pine)Positive and negative results
1 reporting no difference from an alternative
- positive
in vitro · growth · Pinus patula (Mexican weeping pine)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.