Effect of Soil and Foliar Zinc Application on Zinc Concentration and Bioavailability in Wheat Grain Grown on Potentially Zinc-deficient Soil

被引：0
作者：
X. W. Yang
X. H. Tian
W. J. Gale
Y. X. Cao
X. C. Lu
A. Q. Zhao
机构：
[1] Northwest A&F University,College of Resources and Environment
[2] Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China,undefined
[3] Ministry of Agriculture,undefined
来源：
Cereal Research Communications | 2011年 / 39卷
关键词：
bioavailability; Zn; Phytic acid k¨eat grain;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Three field experiments were conducted to determine the effect of soil Zn, foliar Zn, and soil N application on Zn and phytic acid concentrations in wheat grain grown on potentially Zn-deficient soil. Results showed significant genotypic variation in grain Zn concentrations among fifteen wheat cultivars commonly grown in northwest China. Soil Zn application had mixed effects, increasing grain Zn concentrations of some cultivars by as much as 21%, but reducing grain Zn concentrations of other cultivars by as much as 14%. In comparison, foliar Zn application increased grain Zn concentrations by 26 to 115%. Grain Zn concentrations were 14% larger in the combined (foliar Zn + soil Zn) treatment compared to the foliar Zn treatment, but the added cost of soil Zn application may not be economically justifiable. Wheat grain phytic acid concentrations and phytic acid: Zn molar ratios were less in the foliar Zn and (foliar Zn + soil Zn) treatments compared to the soil Zn and the unfertilized treatments. This indicated that foliar Zn increased Zn bioavailability. Best results were obtained when foliar Zn was applied at early grain filling. Overall, these findings indicate that foliar Zn application to Zn-efficient cultivars could reduce human Zn deficiency in regions with potentially Zn-deficient soil.
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页码：535 / 543
页数：8
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共 68 条
[1]  
Abeledo LG(2003)Genetic improvement of barley yield potential and its physiological determinants in Argentina (1944–1998) Euphytica 130 325-334
[2]  
Calderini DF(2002)Impact of micronutrient deficiencies on growth: The stunting syndrome Ann. Nutr. Metab. 46 8-17
[3]  
Slafer GA(2008)Enrichment of cereal grains with zinc: Agronomic or genetic biofortification? Plant Soil 302 1-17
[4]  
Branca F(2010)Comparison of zinc efficiency among winter wheat genotypes cultured hydroponically in chelator-buffered solutions J. of Plant Nutrition 33 1612-1624
[5]  
Ferrari M(2002)Phytic acid and phosphorus concentrations in seeds of wheat cultivars grown with and without zinc fertilization J. of Plant Nutrition 25 113-127
[6]  
Cakmak I(1997)Dietary strategies to improve the iron and zinc nutriture of young women following a vegetarian diet Plant Foods for Human Nutrition 51 1-16
[7]  
Chen ZH(2006)Zinc: the missing link in combating micronutrient malnutrition in developing countries Proc. Nutr. Soc. 65 51-60
[8]  
Tian XH(1999)The role of micronutrients in psychomotor sad cognitive development Br. Med. Bull. 55 511-527
[9]  
Yang XW(1996)Molar ratio of phytic acid and zinc during cereal flake production J. Sci. Food Agric. 70 355-358
[10]  
Lu XC(2001)Identifying populations at risk of zinc deficiency. The use of supplementation trials Nutrition Reviews 59 80-84
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