Claim · model-written summary
Absolute plant N contents of sorghum were greater in the high soil N treatment.
- Treatment
- high soil N treatmente1
- Outcome
- absolute plant N contentse1
- Direction
- greatere1
- Comparator
- low soil N treatmente1
SorghumNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“grain sorghum hybrids”
e1“The relative contribution of remobilized N to grain N was greater in the low soil N treatment, although absolute plant N contents were greater in the high soil N treatment.”
Title
J. B. Youngquist; J. W. Maranville Journal of Plant Nutrition 1992. doi:10.1080/01904169209364332
Other claims from this paper (13)
- Observation Up to 89% of final total plant N had accumulated by anthesis in sorghum, depending on genotype and soil N level.
- Observation At anthesis, 44‐ 57% of sorghum plant N was in the stem.
- Observation At anthesis, 43–56% of sorghum plant N was in the leaves.
- Observation At maturity, 58–68% of sorghum total plant N was in the grain.
- Observation At maturity, 14–17% of sorghum total plant N remained in the stems.
- Observation At maturity, 18–25% of sorghum total plant N remained in the leaves.
- Observation During grain fill, stem and leaf fractions of sorghum lost 45–69% of their N content.
- Observation During grain fill, sorghum stems had a greater N content loss than leaves.
- Intervention effect Remobilized N contributed a greater share of grain N in the low soil N treatment of sorghum.
- Association Greater N accumulation during grain fill was not necessarily associated with higher sorghum grain yields.
- Association Maintaining total dry matter per unit plant N was not a mechanism for increasing sorghum yield in the high N treatment.
- Mechanism Greater sorghum yields in the high N soil were due to an increase in productive tillers.
- Observation Sorghum hybrids differed in N and yield parameters, and soil N treatment changed plant N, at anthesis and later.