Abstract
Two sweet corn hybrids, 'Tanok l' and 'Golden Cross Bantam 70 (GCB 70)' were grown at five plant densities, of 4, 167. 5,556, 6,667. 8, 333, and 11, 111 plants per 10 ares, with or without tiller removal, to determine effects of tiller removal on growth and yield of sweet corn hybrids at various plant densities. Tillers were pulled when less than 15 cm tall. The number of tillers per plant linearly decreased as plant density increased. The two hybrids had similar plant height, ear length and diameter, ear weight and the number of ears per plant and 10 ares. Tanok 1 lodged approximately 20％ at above 8,333 plants per 10 ares, while GCB 70 did not lodge at all, at any plant density. Tanok 1 had higher leaf area index (LAI), ear and stover yields than GCB 70. Except for root lodging and LAI, hybrid x plant density interaction was not significant at 5％ probability level. Plant density did not affect silking data. Increasing plant density linearly increased plant height, LAI, and stover yield, but linearly decreased ear length, ear weight, and the number of ears per plant. Increase in LAI was greater in Tanok 1 than in GCB 70, with increasing plant density. The relationships between the number of ears and ear yield per 10 ares and plant density were Quadratic. The optimum plant density was estimated to be approximately 6500 plants per 10 ares, using the equation based on ear yield. Except for ear height and LA I, hybrid x tiller removal and plant density x tiller removal interactions were not significant. Hybrid x plant density x tiller removal interaction was not significant for any characters. When averaged over hybrids and plant densities, tiller removal reduced plant height and ear and stover yields by about 3, 10, and 16％, respectively, but did not significantly affect silking date, root lodging, ear length and diameter and the number of ears per plant and per 10 ares. The results indicate that the optimum plant density is approximately 6500 plants per 10 ares, regardless of tiller removal and tillers are not to be removed at any plant density.
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Claims 17
Claim · model-written summary
Tillers per plant declined linearly with increasing density.
Verbatim
e0“The number of tillers per plant linearly decreased as plant density increased”
t0“sweet corn”
Claim · model-written summary
The hybrids had similar height, ear dimensions, ear weight, and ear count.
Verbatim
e0“The two hybrids had similar plant height, ear length and diameter, ear weight and the number of ears per plant and 10 ares”
t0“sweet corn”
Claim · model-written summary
Tanok 1 lodged approximately 20％ above 8,333 plants per 10 ares.
Verbatim
e0“Tanok 1 lodged approximately 20％ at above 8,333 plants per 10 ares”
t0“sweet corn”
Claim · model-written summary
GCB 70 had no lodging at any density.
Verbatim
e0“GCB 70 did not lodge at all, at any plant density”
t0“sweet corn”
Claim · model-written summary
Tanok 1 had higher LAI, ear yield, and stover yield than GCB 70.
Verbatim
e0“Tanok 1 had higher leaf area index (LAI), ear and stover yields than GCB 70”
t0“sweet corn”
Claim · model-written summary
Density did not affect silking date.
Not reportedComparator
Verbatim
e0“Plant density did not affect silking data”
t0“sweet corn”
Claim · model-written summary
Increasing density increased height, LAI, and stover yield.
Verbatim
e0“Increasing plant density linearly increased plant height, LAI, and stover yield”
t0“sweet corn”
Claim · model-written summary
Increasing density decreased ear length, ear weight, and ears per plant.
Verbatim
e0“linearly decreased ear length, ear weight, and the number of ears per plant”
t0“planting density and tiller removal on growth and yield of sweet corn hybrids”
Claim · model-written summary
LAI increased more with density in Tanok 1 than GCB 70.
Verbatim
e0“Increase in LAI was greater in Tanok 1 than in GCB 70, with increasing plant density”
t0“sweet corn”
Claim · model-written summary
Ear number and ear yield per 10 ares related quadratically to density.
Not reportedDirection
Verbatim
e0“The relationships between the number of ears and ear yield per 10 ares and plant density were Quadratic”
t0“sweet corn”
Claim · model-written summary
Estimated optimum density was approximately 6500 plants per 10 ares.
Verbatim
e0“The optimum plant density was estimated to be approximately 6500 plants per 10 ares, using the equation based on ear yield”
t0“sweet corn”
Claim · model-written summary
Tiller removal reduced plant height by about 3％.
Not reportedComparator
Verbatim
e0“tiller removal reduced plant height and ear and stover yields by about 3, 10, and 16％, respectively”
t0“sweet corn”
Claim · model-written summary
Tiller removal reduced ear yield by about 10％.
Not reportedComparator
Verbatim
e0“tiller removal reduced plant height and ear and stover yields by about 3, 10, and 16％, respectively”
t0“sweet corn”
Claim · model-written summary
Tiller removal reduced stover yield by about 16％.
Not reportedComparator
Verbatim
e0“tiller removal reduced plant height and ear and stover yields by about 3, 10, and 16％, respectively”
t0“sweet corn”
Claim · model-written summary
Tiller removal had no significant effect on silking date, root lodging, ear dimensions, or ear count.
- Taxon
- sweet cornt0
- Treatment
- tiller removalt0
- Outcome
- silking date, root lodging, ear length and diameter and the number of ears per plant and per 10 arese0
- Direction
- did not significantly affecte0
Not reportedComparator
Verbatim
e0“did not significantly affect silking date, root lodging, ear length and diameter and the number of ears per plant and per 10 ares”
t0“planting density and tiller removal on growth and yield of sweet corn hybrids”
Claim · model-written summary
Authors recommend about 6500 plants per 10 ares.
Verbatim
e0“the optimum plant density is approximately 6500 plants per 10 ares”
t0“sweet corn”
Claim · model-written summary
Authors recommend against tiller removal at any density.
Verbatim
e0“tillers are not to be removed at any plant density”
t0“sweet corn”
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