[Effects of nitrogen forms on roots and N fertilizer efficiency of different wheat cultivars with specialized end-uses].
A pot experiment showed that under NH2-N treatment, strong gluten wheat Yumai 34 had the highest root biomass, root activity, N use efficiency, N harvest index and grain protein content, but all of these were the lowest under NO3(-)-N treatment. For the medium gluten wheat Yumai 49, the items measured were the highest under NH4+-N treatment, but not the same trend under NO3(-)-N and NH2-N treatments. For the weak gluten wheat Yumai 50, NH4+-N treatment was the best for its top quality and specialized end-uses. There was a significant relationship between grain protein content and N harvest index.
Ma
Xinming
X
College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China. xinmingma@371.net
Wang
Zhiqiang
Z
Wang
Xiaochun
X
Wang
Shuli
S
D018533:Biomass; D005308:Fertilizers; D009566:Nitrates / Q000494:pharmacology; D009573:Nitrites / Q000494:pharmacology; D009584:Nitrogen / Q000494:pharmacology*; D017672:Nitrogen Compounds / Q000494:pharmacology*; D010940:Plant Proteins / Q000378:metabolism; D018517:Plant Roots / Q000187:drug effects / Q000254:growth & development* / Q000378:metabolism; D000644:Quaternary Ammonium Compounds / Q000494:pharmacology; D014908:Triticum / Q000187:drug effects / Q000254:growth & development* / Q000378:metabolism
D005308:Fertilizers; D009566:Nitrates; D009573:Nitrites; D017672:Nitrogen Compounds; D010940:Plant Proteins; D000644:Quaternary Ammonium Compounds; D009584:Nitrogen