Abstract
Abstract A field experiment was conducted at Urbana, I11., to determine the grain yield potential of corn plants developing during the period of maximum day length as compared to other plants developing later in the season. A high management level including high fertility and adequate soil moisture was maintained. Plants started in the greenhouse, transplanted to the field April 19 when approximately 15 cm tall, and pollinated June 15, yielded no more grain than plants started as seed in late April and pollinated July 8. Seedings made in the field May 14 and May 31 gave yield reductions of 103 kg/ha day as compared to the yield of the April 30 seeding. Stalk strength as measured by resistance to crushing was found to decrease with date of planting from April 19 to May 31.
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Claims 3
Claim · model-written summary
Greenhouse-started corn transplanted April 19 yielded no more grain than field-seeded corn started in late April.
- Taxon
- Corn
Zea mays subsp. mayst0 - Treatment
- Plants started in the greenhouse, transplanted to the field April 19e0
- Outcome
- graine0
- Direction
- no moree0
- Comparator
- plants started as seed in late Aprile0
- Setting
- fielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plants started in the greenhouse, transplanted to the field April 19 when approximately 15 cm tall, and pollinated June 15, yielded no more grain than plants started as seed in late April and pollinated July 8”
t0“Corn”
Claim · model-written summary
May 14 and May 31 field seedings reduced grain yield by 103 kg/ha day relative to April 30.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- May 14 and May 31e0
- Outcome
- yielde0
- Direction
- reductionse0
- Value
- 103 kg/ha daye0
- Comparator
- April 30 seedinge0
- Setting
- fielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seedings made in the field May 14 and May 31 gave yield reductions of 103 kg/ha day as compared to the yield of the April 30 seeding”
t0“Corn”
Claim · model-written summary
Stalk crushing resistance declined with later planting from April 19 to May 31.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- date of planting from April 19 to May 31e0
- Outcome
- Stalk strength as measured by resistance to crushinge0
- Direction
- decreasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Stalk strength as measured by resistance to crushing was found to decrease with date of planting from April 19 to May 31”
t0“Corn”
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