Effects of nitrogen fertilizer rate and post-anthesis soil water content on yield and quality of high-quality strong gluten wheat

Chang Xing Zhao, Dong Hui Ma, Yue Fu Wang, Qi Lin, Gang Wu, Hong Bo Shao, Cheruth Abdul Jaleel

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Effects of nitrogen fertilizer rate and post-anthesis SWC (soil water content) on yield and quality of high-quality strong gluten wheat were tested under proof-rainfall pool culture condition. The results showed that over high SWC (80%-90%) or over low SWC (40%-50%) after anthesis could cause the decrease of kernel number per spike, thousand kernel weight (TKW) and final yield under the same nitrogen fertilizer rate. Under the same SWC, it indicated that the increase of nitrogen fertilization was favor to the improvement of kernel number per spike, but too much (300kg/hm2) or too shortage (150kg/hm 2) nitrogen fertilization was unfavorable to the increase of kernel number per spike and TKW, at last, it could lead to yield decrease. Moreover, Total protein content, Gliadin, Glutenin, and Glisdin to Glutenin ratio could arise with the increase of nitrogen fertilizer rate under the same SWC. Under the same nitrogen fertilizer rate, Both total protein and its component content decreased with the increase of SWC, meanwhile, Glisdin to Glutenin ratio was reduced. In addition, over high SWC (80%-90%) or over low SWC (40%-50%) after anthesis was unfavorable to the increase of starch and its component content. However, too much (300kg/hm2) or too shortage (150kg/hm2) nitrogen fertilization was unfavorable to the improvement of starch and its component content. Only keeping suitable SWC after anthesis and nitrogen fertilization can benefit the improvement of Amylopectin to Amylose ratio. Consequently, proper enhancement in nitrogen fertilization or suitable SWC improved the processing quality of wheat grain. It can be concluded that the techniques of suitable nitrogen application and SWC controlling after anthesis can regulate and control the formation of quality and yield of wheat, in order to realize good quality and high yield in wheat production.

Original languageEnglish
Pages (from-to)4396-4404
Number of pages9
JournalShengtai Xuebao/ Acta Ecologica Sinica
Volume28
Issue number9
Publication statusPublished - 2008
Externally publishedYes

Keywords

  • Nitrogen fertilizer rate
  • Quality
  • Soil water content
  • Wheat (Triticum aestivum L.)
  • Yield

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology

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