Abstract
Seven maize (Zea mays L.) hybrids (Janna, P3902, P3751, P3585, Furio, CG900 (overseas commercial hybrids) and CFI (Crop & Food experimental hybrid)) were compared in a trialat Massey University, Palmerston North during the 1994/95 season. Hybrids were established at 75,000, I 00,000 and 140,000 plants/ha in a factorial design trial with four replicates. Dry matter (DM) yield and yield components were measured in all plots while digestibility and nitrogen (N) content were measured in the 100,000 plants/ha plots only. Final yields ranged from 20,700 kgDM/ha (CFI) to 15,800 kgDM/ha (Janna). There was no interaction with plant population. Yield at the low plant population (16,500 kgDM/ha) was significantly lower than at the medium (18,800 kgDM/ha) and high (19,600 kgDM/ha) populations. The greatest contribution to DM yield was provided by the grain, followed by the stem, cob and leaf. There were significant hybrid differences in DM partitioning, but plant population had no effect. Total metabolisable energy (ME) content ranged from I 0.30 to 11.32 MJ ME/kg DM. The ME content of CFI was significantly higher than that of all other hybrids. Nitrogen content ranged from 1.07% to 1.16% and did not differ among hybrids. The best performing hybrid was CFI, which had the highest ME content and was one of the highest yielding of the hybrids. Although results are from a single trial they suggest that locally bred hybrids may have greater productivity than overseas hybrids currently in use.
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Claims 14
Claim · model-written summary
CFI final yield was 20,700 kgDM/ha.
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Final yields ranged from 20,700 kgDM/ha (CFI) to 15,800 kgDM/ha (Janna).”
t0“maize”
Claim · model-written summary
Janna final yield was 15,800 kgDM/ha.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Final yields ranged from 20,700 kgDM/ha (CFI) to 15,800 kgDM/ha (Janna).”
t0“maize”
Claim · model-written summary
Hybrid yield had no interaction with plant population.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was no interaction with plant population.”
t0“maize”
Claim · model-written summary
low plant population yielded 16,500 kgDM/ha; the low population yielded significantly less than medium and high populations.
- Treatment
- low plant populatione0
- Outcome
- Yielde0
- Direction
- lowere0
- Value
- 16,500 kgDM/hae0
- Comparator
- mediume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield at the low plant population (16,500 kgDM/ha) was significantly lower than at the medium (18,800 kgDM/ha) and high (19,600 kgDM/ha) populations.”
t0“maize”
Claim · model-written summary
medium yielded 18,800 kgDM/ha; the low population yielded significantly less than medium and high populations.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield at the low plant population (16,500 kgDM/ha) was significantly lower than at the medium (18,800 kgDM/ha) and high (19,600 kgDM/ha) populations.”
t0“maize”
Claim · model-written summary
high yielded 19,600 kgDM/ha; the low population yielded significantly less than medium and high populations.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield at the low plant population (16,500 kgDM/ha) was significantly lower than at the medium (18,800 kgDM/ha) and high (19,600 kgDM/ha) populations.”
t0“maize”
Claim · model-written summary
Grain contributed most to dry matter yield, followed by stem, cob and leaf.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The greatest contribution to DM yield was provided by the grain, followed by the stem, cob and leaf.”
t0“maize”
Claim · model-written summary
DM partitioning differed significantly among hybrids.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were significant hybrid differences in DM partitioning, but plant population had no effect.”
t0“maize”
Claim · model-written summary
Plant population had no effect on DM partitioning.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were significant hybrid differences in DM partitioning, but plant population had no effect.”
t0“maize”
Claim · model-written summary
Total metabolisable energy content ranged from I 0.30 to 11.32 MJ ME/kg DM.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total metabolisable energy (ME) content ranged from I 0.30 to 11.32 MJ ME/kg DM.”
t0“maize”
Claim · model-written summary
CFI had significantly higher ME content than all other hybrids.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ME content of CFI was significantly higher than that of all other hybrids.”
t0“maize”
Claim · model-written summary
Nitrogen content ranged from 1.07% to 1.16% and did not differ among hybrids.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen content ranged from 1.07% to 1.16% and did not differ among hybrids.”
t0“maize”
Claim · model-written summary
CFI was among the highest yielding hybrids.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The best performing hybrid was CFI, which had the highest ME content and was one of the highest yielding of the hybrids.”
t0“maize”
Claim · model-written summary
The authors suggest locally bred hybrids may be more productive than overseas hybrids.
- Material
- locally bred hybridse0
- Outcome
- productivitye0
- Direction
- greatere0
- Qualifier
- single triale0
- Comparator
- overseas hybridse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Although results are from a single trial they suggest that locally bred hybrids may have greater productivity than overseas hybrids currently in use.”
t0“maize”
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