{"title":"晚施15n和水分亏缺对德国和地中海春小麦品种面筋分配的影响","authors":"K. Götz, Osman Erekul","doi":"10.3390/nitrogen3040041","DOIUrl":null,"url":null,"abstract":"In a split N-application system, the objective was to quantify N/15N in gluten and non-gluten proteins after the late application of 30 or 60 kg N, whereby 10% of the third split was applied as 15N. This fertilization was combined with a reduced water supply for 21 days (well-watered (ww); water deficit (wd)). German spring wheat cultivars, Elite wheat Taifun, Quality wheat Monsun and cultivars from the Mediterranean territory, Golia, Gönen, were examined. The protein content in gluten was for 30 kg N, ww, similar for Taifun, Golia, and Gönen, but markedly lower in Monsun (231, 245, 247, 194 mg protein/g DM). The water deficit increased the protein content in the gluten of Golia and Gönen and was higher than that of Taifun and Monsun (297, 257, 249, 202 mg protein/g DM). Fertilization of 60 kg N, ww, did not result in any change in the protein content in gluten and differences between the cultivars were not detectable. The 15N protein in gluten was for 30 kg N, ww, markedly higher in Gönen (2.32 mg 15N protein/g DM), compared to Golia and Monsun (1.93, 1.50 mg 15N protein/g DM), and similar in Taifun (1.64 mg 15N protein/g DM). 15N fertilizer uptake into gluten was stimulated by water deficit for 30 and 60 kg N, leading to significantly increased 15N protein in Golia and Gönen, (2.38, 2.99, 4.34, 5.87 mg 15N protein/g DM). Fertilization of 60 kg N led to a proportional two-time increase in the 15N gluten protein of the four cultivars, in ww and wd plants. Assessed on the basis of 15N fertilizer allocation under wd conditions into gluten proteins, Golia and Gönen have a stronger sink activity, compared to Taifun and Monsun.","PeriodicalId":19365,"journal":{"name":"Nitrogen","volume":"333 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2022-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effect of Late 15N-Fertilization and Water Deficit on Allocation into the Gluten of German and Mediterranean Spring Wheat Cultivars\",\"authors\":\"K. Götz, Osman Erekul\",\"doi\":\"10.3390/nitrogen3040041\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In a split N-application system, the objective was to quantify N/15N in gluten and non-gluten proteins after the late application of 30 or 60 kg N, whereby 10% of the third split was applied as 15N. This fertilization was combined with a reduced water supply for 21 days (well-watered (ww); water deficit (wd)). German spring wheat cultivars, Elite wheat Taifun, Quality wheat Monsun and cultivars from the Mediterranean territory, Golia, Gönen, were examined. The protein content in gluten was for 30 kg N, ww, similar for Taifun, Golia, and Gönen, but markedly lower in Monsun (231, 245, 247, 194 mg protein/g DM). The water deficit increased the protein content in the gluten of Golia and Gönen and was higher than that of Taifun and Monsun (297, 257, 249, 202 mg protein/g DM). Fertilization of 60 kg N, ww, did not result in any change in the protein content in gluten and differences between the cultivars were not detectable. The 15N protein in gluten was for 30 kg N, ww, markedly higher in Gönen (2.32 mg 15N protein/g DM), compared to Golia and Monsun (1.93, 1.50 mg 15N protein/g DM), and similar in Taifun (1.64 mg 15N protein/g DM). 15N fertilizer uptake into gluten was stimulated by water deficit for 30 and 60 kg N, leading to significantly increased 15N protein in Golia and Gönen, (2.38, 2.99, 4.34, 5.87 mg 15N protein/g DM). Fertilization of 60 kg N led to a proportional two-time increase in the 15N gluten protein of the four cultivars, in ww and wd plants. Assessed on the basis of 15N fertilizer allocation under wd conditions into gluten proteins, Golia and Gönen have a stronger sink activity, compared to Taifun and Monsun.\",\"PeriodicalId\":19365,\"journal\":{\"name\":\"Nitrogen\",\"volume\":\"333 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2022-11-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nitrogen\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.3390/nitrogen3040041\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nitrogen","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3390/nitrogen3040041","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
在分次施氮系统中,目的是量化后期施用30或60 kg N后面筋和非面筋蛋白中的N/15N,其中第三次施氮的10%为15N。这种施肥与减少供水量相结合,持续21天(充足水);水分亏缺(wd))。以德国春小麦、泰丰优质小麦、孟荪优质小麦和Golia (Gönen)地中海地区的品种为研究对象。30 kg N、ww时面筋蛋白含量与泰丰、Golia和Gönen相似,但孟孙显著低于前者(231、245、247、194 mg蛋白/g DM)。水分亏缺使Golia和Gönen的蛋白含量增加,且高于泰丰和Monsun(297、257、249、202 mg protein/g DM)。施氮60 kg (ww)对小麦面筋蛋白含量无显著影响,品种间无显著差异。在30 kg N, ww下,Gönen (2.32 mg 15N蛋白/g DM)显著高于Golia和Monsun(1.93、1.50 mg 15N蛋白/g DM), Taifun (1.64 mg 15N蛋白/g DM)。30和60 kg N的水分亏缺刺激了面筋对15N肥料的吸收,导致Golia和Gönen的15N蛋白显著增加(2.38、2.99、4.34、5.87 mg 15N蛋白/g DM)。在ww和wd植株上,施用60 kg氮肥导致4个品种15N面筋蛋白呈2倍比例增加。以15N肥在wd条件下分配到面筋蛋白为基础进行评价,Golia和Gönen的汇活性较Taifun和Monsun强。
Effect of Late 15N-Fertilization and Water Deficit on Allocation into the Gluten of German and Mediterranean Spring Wheat Cultivars
In a split N-application system, the objective was to quantify N/15N in gluten and non-gluten proteins after the late application of 30 or 60 kg N, whereby 10% of the third split was applied as 15N. This fertilization was combined with a reduced water supply for 21 days (well-watered (ww); water deficit (wd)). German spring wheat cultivars, Elite wheat Taifun, Quality wheat Monsun and cultivars from the Mediterranean territory, Golia, Gönen, were examined. The protein content in gluten was for 30 kg N, ww, similar for Taifun, Golia, and Gönen, but markedly lower in Monsun (231, 245, 247, 194 mg protein/g DM). The water deficit increased the protein content in the gluten of Golia and Gönen and was higher than that of Taifun and Monsun (297, 257, 249, 202 mg protein/g DM). Fertilization of 60 kg N, ww, did not result in any change in the protein content in gluten and differences between the cultivars were not detectable. The 15N protein in gluten was for 30 kg N, ww, markedly higher in Gönen (2.32 mg 15N protein/g DM), compared to Golia and Monsun (1.93, 1.50 mg 15N protein/g DM), and similar in Taifun (1.64 mg 15N protein/g DM). 15N fertilizer uptake into gluten was stimulated by water deficit for 30 and 60 kg N, leading to significantly increased 15N protein in Golia and Gönen, (2.38, 2.99, 4.34, 5.87 mg 15N protein/g DM). Fertilization of 60 kg N led to a proportional two-time increase in the 15N gluten protein of the four cultivars, in ww and wd plants. Assessed on the basis of 15N fertilizer allocation under wd conditions into gluten proteins, Golia and Gönen have a stronger sink activity, compared to Taifun and Monsun.