Abstract
Evaluation of effects of environment and agricultural variations on the production phase of lettuce seedlings, Lactuca sativa cv. Elisa (Asteraceae) is provided. Seedlings were cultivated on insulating trays, from August to October 1997, in Maringá PR Brazil. Complete randomized block design with four replications was used during pre - and post-transplantation phases to evaluate treatment controls, transplantation delay, roots without above-ground pruning, high temperature during germination phase, water deficiency, excessive watering, substratum salination, aerial fertilization, direct sunshine, high temperature in growing phase and shade. While growth patterns of seedlings in transplantation were evaluated, productivity parameters were also assessed during harvest. Highest production of dry matter of aerial part and root was obtained from delay in transplantation. Productivity of commercial plants varied from 33.1 to 38.4 t/ha, although it was not significantly affected by treatments applied before transplantation
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Claims 4
Claim · model-written summary
Delayed transplantation gave the highest shoot dry matter.
- Taxon
- Lactuca sativa
Lactuca sativae0 - Treatment
- delay in transplantatione1
- Outcome
- dry matter of aerial parte1
- Direction
- Higheste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lettuce seedlings, Lactuca sativa cv. Elisa”
e1“Highest production of dry matter of aerial part and root was obtained from delay in transplantation”
Claim · model-written summary
Delayed transplantation gave the highest root dry matter.
- Taxon
- Lactuca sativaLactuca sativae0
- Treatment
- delay in transplantatione1
- Outcome
- dry matter of aerial part and roote1
- Direction
- Higheste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lettuce seedlings, Lactuca sativa cv. Elisa”
e1“Highest production of dry matter of aerial part and root was obtained from delay in transplantation”
Claim · model-written summary
Commercial lettuce yield ranged from 33.1 to 38.4 t/ha.
- Taxon
- Lactuca sativaLactuca sativae0
- Outcome
- Productivity of commercial plantse1
- Direction
- variede1
- Value
- 33.1 to 38.4 t/hae1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lettuce seedlings, Lactuca sativa cv. Elisa”
e1“Productivity of commercial plants varied from 33.1 to 38.4 t/ha”
Claim · model-written summary
Pretransplant treatments did not significantly affect commercial plant productivity.
- Taxon
- Lactuca sativaLactuca sativae0
- Treatment
- treatments applied before transplantatione1
- Outcome
- Productivity of commercial plantse2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lettuce seedlings, Lactuca sativa cv. Elisa”
e1“it was not significantly affected by treatments applied before transplantation”
e2“Productivity of commercial plants”
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See all 12 papers →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.