Abstract
Age of lettuce (Lactuca sativa L.) seedlings can affect plant development after transplanting where older seedlings can delay development of plants after transplanting and lengthen the crop cycle. For seed production, when the cycle is longer, it is not known if this effect continues until full maturity. The experiment was undertaken to determine the effects of seedling age on production and quality of lettuce, cv. Verônica, seed. Seedlings aged 28, 33, 38, 43 or 48 days after sowing were established in a plastic-covered high tunnel. At transplanting, number of leaves, fresh and dry weight were evaluated, and at the end of cycle, fruit maturity production and quality (germination and vigor) of seeds were evaluated. The older the seedlings, the greater the number of leaves and plant fresh and dry weights. Seedling age did not influence seed production (avg. 27.1 g and 25,291 seeds per plant) and quality (germination and emergence 84% and 92%, respectively) of lettuce seed. Based on results producers can choose the seedling age that most fits with their comfort levels and economic expenditure.
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Claims 5
Claim · model-written summary
In lettuce, older seedlings had a greater number of leaves and greater fresh and dry weights at transplanting.
- Taxon
- lettuce
Lactuca sativat0 - Treatment
- older the seedlingse0
- Outcome
- number of leaves and plant fresh and dry weightse0
- Direction
- greatere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The older the seedlings, the greater the number of leaves and plant fresh and dry weights”
t0“lettuce”
Claim · model-written summary
Seedling age did not influence lettuce seed production, averaging 27.1 g and 25,291 seeds per plant.
- Taxon
- lettuceLactuca sativat0
- Treatment
- Seedling agee0
- Outcome
- seed productione0
- Direction
- did not influencee0
- Value
- 27.1 g and 25,291 seeds per plante0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seedling age did not influence seed production (avg. 27.1 g and 25,291 seeds per plant)”
t0“lettuce”
Claim · model-written summary
Seedling age did not influence lettuce seed germination, which was 84%.
- Taxon
- lettuceLactuca sativat0
- Treatment
- Seedling agee0
- Outcome
- germinatione1
- Direction
- did not influencee0
- Value
- 84%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seedling age did not influence”
e1“germination and emergence 84% and 92%”
t0“lettuce”
Claim · model-written summary
Seedling age did not influence lettuce seed emergence, which was 92%.
- Taxon
- lettuceLactuca sativat0
- Treatment
- Seedling agee0
- Outcome
- emergencee1
- Direction
- did not influencee0
- Value
- 92%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seedling age did not influence”
e1“emergence 84% and 92%”
t0“lettuce”
Claim · model-written summary
Producers can choose the lettuce seedling age that best fits their comfort level and economic expenditure.
- Taxon
- lettuceLactuca sativat0
- Outcome
- seedling agee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“producers can choose the seedling age that most fits with their comfort levels and economic expenditure”
t0“lettuce”