Abstract
Abstract The effect of hybrid and plant population on yield, metabolisable energy content and nitrogen percentage of forage maize were investigated in a trial which included seven maize (Z. mays L.) hybrids established at 75 000, 100 000, and 140 000 plants/ha. Biomass yield and its distribution among morphological components were measured in all plots, while metabolisable energy content and nitrogen percentage of each component were measured in the 100 000 plants/ha plots only. There were significant hybrid differences in yield and yield distribution among components. Yields ranged from 15 800 to 20 700 kg DM/ha, the greatest contribution coming from grain, followed by stem, cob, and leaf. Plant population had no effect on dry matter partitioning, but forage yields declined significantly at the lowest population. Crop metabolisable energy content ranged from 10.3 to 11.3 MJ/kg DM with significant differences among hybrids, but was not correlated with forage yield or the relative contribution to yield of any component.
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Claims 7
Claim · model-written summary
Seven maize hybrids differed significantly in yield and in yield distribution among plant components.
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seven maize (Z. mays L.) hybrids”
e1“There were significant hybrid differences in yield and yield distribution among components”
Claim · model-written summary
Biomass yield ranged from 15 800 to 20 700 kg DM/ha across the maize hybrids.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seven maize (Z. mays L.) hybrids”
e2“Yields ranged from 15 800 to 20 700 kg DM/ha”
Claim · model-written summary
Grain made the greatest contribution to forage yield, followed by stem, cob and leaf.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seven maize (Z. mays L.) hybrids”
e3“the greatest contribution coming from grain, followed by stem, cob, and leaf”
Claim · model-written summary
Plant population had no effect on dry matter partitioning among components.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seven maize (Z. mays L.) hybrids”
e3“Plant population had no effect on dry matter partitioning”
Claim · model-written summary
Forage yield declined significantly at the lowest plant population.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seven maize (Z. mays L.) hybrids”
e4“forage yields declined significantly at the lowest population”
Claim · model-written summary
Metabolisable energy content ranged from 10.3 to 11.3 MJ/kg DM and differed significantly among hybrids.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seven maize (Z. mays L.) hybrids”
e5“Crop metabolisable energy content ranged from 10.3 to 11.3 MJ/kg DM with significant differences among hybrids”
Claim · model-written summary
Metabolisable energy content was not correlated with forage yield or with the relative contribution of any component to yield.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seven maize (Z. mays L.) hybrids”
e5“Crop metabolisable energy content ranged from 10.3 to 11.3 MJ/kg DM”
e6“but was not correlated with forage yield or the relative contribution to yield of any component”
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density · growth · Zea mays (maize)Positive and negative results
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