Paper · 1965 · DOAJ (DOAJ: Directory of Open Access Journals)

Pasture and greenchop performance comparisons…: Piper Sudangrass and Sudan Hybrids Under Irrigation

Donald R. Sumner; Marble; E. J. Gregory

3
claims
5
verbatim quotes
0
citations
1
research areas
✓
Open access · cc-by-sa

Abstract

Many trials comparing the yielding ability of some of the sudan hybrids with Piper sudangrass have failed to show any significant differences in pasture production when based upon dry matter produced. Greenchop operators in California utilize these summer annuals in every stage of growth from near 20 inches in height to near maturity. The height at which these crops are harvested as greenchop depends upon how often the stand must be recut to keep material moving to the feeding operations. The data presented here suggests that if greenchop operators harvest their crop at about 5 to 6 ft or less in height, there is little or no advantage in using hybrids. If, however, green-chopping is confined to plant material, 7, 8, or 9 ft in height, there is a definite yield advantage from using the excellent sudan hybrids.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-sa. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 3

Observationobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Sudan hybrids did not differ significantly from Piper sudangrass in pasture dry matter production.

Taxon
Piper sudangrasse0
Material
sudan hybridse0
Outcome
pasture production when based upon dry matter producede0
Direction
failed to show any significant differencese0
Comparator
Piper sudangrasse0

Verbatim

e0

“trials comparing the yielding ability of some of the sudan hybrids with Piper sudangrass have failed to show any significant differences in pasture production when based upon dry matter produced”

✓ located verbatim in the source · abstract, characters 5–199 · show in text ↑
Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

At harvest heights of about 5 to 6 ft or less, hybrids offered little or no greenchop advantage.

Taxon
sudan hybridst0
Material
hybridse0
Outcome
little or no advantagee0
Direction
little or no advantagee0
Qualifier
about 5 to 6 ft or less in heighte0

Verbatim

e0

“if greenchop operators harvest their crop at about 5 to 6 ft or less in height, there is little or no advantage in using hybrids”

✓ located verbatim in the source · abstract, characters 532–660 · show in text ↑
t0

“Sudan Hybrids”

✓ located verbatim in the source · title, characters 69–82 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

At 7, 8, or 9 ft harvest height, excellent sudan hybrids had a definite yield advantage.

Taxon
sudan hybridst0
Material
sudan hybridse0
Outcome
yield advantagee0
Direction
advantagee0
Qualifier
7, 8, or 9 ft in heighte0

Verbatim

e0

“if, however, green-chopping is confined to plant material, 7, 8, or 9 ft in height, there is a definite yield advantage from using the excellent sudan hybrids”

✓ located after whitespace/quote normalisation · abstract, characters 662–820 · show in text ↑
t0

“Sudan Hybrids”

✓ located verbatim in the source · title, characters 69–82 · show in text ↑