Claim · model-written summary
N2 significantly prevented decreases in yield and NUE relative to N1 under individual heat and drought.
Triticum aestivumVerbatim
e0“Compared with N1, N2 or N3 application significantly prevented the decrease in yield and NUE caused by post-anthesis heat and drought stress alone.”
t0“Wheat”
Title
Chen Ru; Xiaotao Hu; Dianyu Chen; et al. Water 2022. doi:10.3390/w14091407
Other claims from this paper (18)
- Intervention effect N2 enhanced grain nitrate reductase and glutamine synthase activities relative to N1 under heat stress.
- Intervention effect N2 enhanced grain nitrate reductase and glutamine synthase activities relative to N1 under drought stress.
- Intervention effect N2 increased photosynthetic rate, PSII efficiency and instantaneous WUE relative to N1 under individual post-anthesis stresses.
- Intervention effect N3 increased photosynthetic rate, PSII efficiency and instantaneous WUE relative to N1 under individual post-anthesis stresses.
- Intervention effect Under combined stress, N1 usually significantly improved photosynthetic rate, PSII efficiency and instantaneous WUE.
- Intervention effect Nitrogen application increased green leaf area, aboveground dry mass and height in association with increased photosynthesis.
- Association Leaf nitrogen content per unit area explained variation in photosynthetic rate more accurately.
- Intervention effect Post-anthesis heat stress decreased yield by reducing grain number and thousand kernel weight.
- Intervention effect Post-anthesis drought decreased yield by reducing grain number and thousand kernel weight.
- Intervention effect Combined post-anthesis stress decreased yield by reducing grain number and thousand kernel weight.
- Intervention effect Combined stress reduced NUE more than individual heat or drought.
- Intervention effect N3 significantly prevented decreases in yield and NUE relative to N1 under individual heat and drought.
- Intervention effect N1 was conducive to improving wheat productivity, WUE and NUE under combined stress.
- Recommendation The authors recommend appropriately increasing nitrogen under individual post-anthesis heat or drought.
- Recommendation The authors suggest reducing nitrogen to N1 under combined stress to compensate for yield, WUE and NUE losses.
- Intervention effect Heat after anthesis reduced grain number per spike and thousand kernel weight.
- Intervention effect Drought after anthesis reduced grain number per spike and thousand kernel weight.
- Intervention effect Combined stress after anthesis reduced grain number per spike and thousand kernel weight.