Claim · model-written summary
High N application reduced tuberous root yield of sweetpotato in both years.
- Taxon
- sweetpotato
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Ipomoea batatast0 - Treatment
- high N applicatione1
- Outcome
- tuberous root yielde1
- Direction
- reducede1
- Qualifier
- both yearse1
- Setting
- field experimentse0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
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Verbatim
t0“sweetpotato cultivars”
e1“The results from both years revealed that high N application reduced the tuberous root yield”
e0“were used in field experiments with the Jishu26 (J26) and Xushu32 (X32) cultivars in 2015 and 2016”
Title
Wenxue Duan; Qingmei Wang; Haiyan Zhang; et al. PLoS ONE 2018. doi:10.1371/journal.pone.0194570
Other claims from this paper (13)
- Intervention effect High N application reduced the tuber/vine rate of carbon-13 in sweetpotato.
- Intervention effect High N application reduced the top-to-base gradients of sucrose, ammonia N and potassium along the stem of sweetpotato.
- Association Cultivar J26 had a higher yield than X32 under N0.
- Association Cultivar J26 had a lower yield than X32 under N120 and N240.
- Association Cultivar J26 had a higher 13C distribution to tuberous roots than X32 under N0.
- Association Under N120 and N240, cultivar X32 showed the opposite trend, a higher 13C distribution to tuberous roots than J26.
- Observation Under N0, cultivar J26 showed a steep top-to-base amino acid gradient along the stem.
- Association Under N0, J26 had a significantly lower top-to-base sucrose increase along the stem in the late growth stage.
- Association Under N120 and N240, X32 had a greater top-to-base decrease in ammonia N along the stem during the main growth stages.
- Observation Under N120 and N240, X32 showed a steep top-to-base sucrose gradient along the stem in the early growth stage.
- Association Under N120 and N240, X32 had a lower top-to-base sucrose increase along the stem in the middle and late growth stages.
- Mechanism A desirable sucrose, ammonia N or K+ gradient downward along the stem was related to the high yield of sweetpotato.
- Recommendation Sweetpotato cultivars using less or no N fertilizer may help farmers in soils of different fertility.