ACTA AGRICULTURAE BOREALI-SINICA ›› 2021, Vol. 36 ›› Issue (S1): 118-124. doi: 10.7668/hbnxb.20192831

Special Issue: Wheat Drought and water saving

• Tillage & Cultivation·Physiology & Biochemistry • Previous Articles     Next Articles

Effect of Spring Irrigation Times on Starch Composition and Physicochemical Properties of Strong Gluten Wheat

GUO Shuangshuang1, YAO Yanrong2, ZHANG Min1, LI Qingyao1, FU Chenchen1, XU Dongna1, SHI Jinping1, CAI Ruiguo1   

  1. 1. Hebei Key Laboratory of Crop Stress Biology, College of Agronomy and Biotechnology, Hebei Normal University of Science and Technology, Qinhuangdao 066004, China;
    2. Institute of Cereal and Oil Crops, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang 050035, China
  • Received:2021-11-10 Published:2021-12-28

Abstract: In order to explore the effects of irrigation times in spring on starch contents and physicochemical properties of strong gluten wheat in Eastern Hebei Plain, the experiment was conducted with Zhongmai 998 and Jinnong 7.This study researched the effect of three irrigation treatments (W0:no irrigation in spring;W1:irrigation in jointing stage;W2:irrigation in jointing stage and flowering stage) on starch contents and composition, thermodynamic properties, gelatinization properties and crystal properties of strong gluten wheat grains, and analyzed the correlation between starch composition and physicochemical properties of starch.The results showed that amylopectin and total starch contents of 2 varieties significantly improved when irrigation in jointing stage(W1), Zhongmai 998 increased by 9.88%, 8.45%, Jinnong 7 increased by 9.35%, 6.34%, and the yield was higher, second only to W2 treatment.With the increase of irrigation times, the peak temperature and gelatinization enthalpy of 2 varieties rose and then decreased, but the peak viscosity and breakdown were highest at W0 treatment, gelatinization time rose and then decreased, final viscosity and gelatinization temperature was difference between varieties, Zhongmai 998 rose and then decreased while Jinnong 7 showed upward trend;Crystal strength and relative crystallization rose and then decreased.The correlation analysis showed that the content of amylose had significantly positively correlated on trough viscosity, the content of amylopectin had significantly or very significantly positively correlated on peak temperature, final temperature, gelatinization enthalpy, gelatinization temperature, gelatinization time, relative crystallization, and had very significantly negative correlated to peak viscosity and breakdown.In conclusion, under the experimental conditions, it can effectively improve amylopectin content, total starch content and grain yield of strong gluten wheat when irrigation in jointing stage(W1), and then affect the physicochemical properties of starch;compared with amylose, the amylopectin content was closer to the physicochemical properties of starch.

Key words: Strong gluten wheat, Irrigation times, Starch composition, Physicochemical properties of starch, Yield

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Cite this article

GUO Shuangshuang, YAO Yanrong, ZHANG Min, LI Qingyao, FU Chenchen, XU Dongna, SHI Jinping, CAI Ruiguo. Effect of Spring Irrigation Times on Starch Composition and Physicochemical Properties of Strong Gluten Wheat[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2021, 36(S1): 118-124. doi: 10.7668/hbnxb.20192831.

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