The sand experiment was conducted to study the responses of different wheat genotypes on zinc supply.According to the comparison among the root to shoot ratios,based onwhether the root to shoot ratios were more than 1 or less than 1,aswell as the observation results were considered,the 25 genotypes of wheat were classified into two types,namely,susceptible genotypes and non-susceptible genotypes,this classification was mainly based on the severity and time of occurrence of zinc deficiency.The result showed that zinc supply could accelerate the growth of wheat shoot and root and increase the chlorophyll SPAD value(The increased range of 18 wheat genotypes among 25 genotypeswere more than 10% ),the root shoot ratio hold the comparative stabilization.The correlation was not significant between the zinc content of seed and chlorophyll SPAD value,and between the root shoot ratio of seedling and chlorophyll SPAD value.Because zinc content in the shoot was relatively high,the zinc non-sensitivity type can mitigate effectively damage caused by zinc deficiency.The comparison between the zinc non-sensitivity and zinc sensitivity was carried out,the mean of zinc content in the shoot and root increased 96.6%and 28.8%under zinc deficiency,respectively; it increased 47.6%and 10.9% under zinc supply,respectively.Zinc supply could not affect phosphorus content of the nonzinc sensitivity and zinc sensitivity wheat plant.The P/Zn ratioswere affectedmainly by the change of zinc content inwheat plant and did not have obvious relation to phosphorus content.
SUN Gang
,
YANG Xi-wen
,
TIAN Xiao-hong
,
LI Sheng-xiu
. Response of Zinc on Wheat Seedling of Different Sensitivity under Zinc Deficiency[J]. Acta Agriculturae Boreali-Sinica, 2009
, 24(6)
: 54
-59
.
DOI: 10.7668/hbnxb.2009.06.011
[1] Graham R D,Asher J S,Hynes S C.Selecting zinc-efficient cereal genotypes for soil of soil of low zinc status[J].Plant and Soil,1992,146:241-250.
[2] 刘铮.我国土壤中锌含量的分布规律[J].中国农业科学,1994,27(1):30-37.
[3] Rattan P K,Shukla L M.Critical limits of deficiency and toxicity of zinc in paddy rice[J].Common Soil Sci and Plant Analy,1984,15(9):1041-1050.
[4] 徐晓燕,杨肖娥,杨玉爱.HCO_3~-对水稻品种Zn吸收运输的影响[J].应用与环境生物学报,2001,7(6):532-535.
[5] 徐晓燕,杨肖娥,杨玉爱.重碳酸氢根对水稻根区重要有机酸分布的影响与水稻品种耐缺Zn关系的研究[J].作物学报,2001,27(3):387-391.
[6] 徐晓燕,杨肖娥,杨玉爱.水稻品种对石灰性土壤缺Zn耐性机理的研究[J].土壤学报,2000,37(3):396-401.
[7] 王人民,杨肖娥,何慈信.不同锌离子活度下水稻锌高效基因型农艺特性的遗传分析[J].作物学报,2003,29(2):181-187.
[8] Zdenko Rengel,Robin D Graham.Importance of seed Zn content for wheat growth on Zn-deficient soil[J].Plant and Soil,1995,173:259-266.
[9] Cakmak A,Yilmaz M,Kalayci M,et al.Zinc deficiency as a critical problem in wheat production in central Anatolia[J].Plant and Soil,1996,180:165-172.
[10] Gakmak I,Torun B,Ereno (ɡˇ)B.Morphological and physiological differences in the response of cereals to zinc deficiency[J].Euphytica,1998,100:349-357.
[11] 徐晓燕,杨肖娥,杨玉爱.锌从土壤向食物链的迁移[J].广东微量元素科学,1996,3(7):21-29.
[12] Eyüpoglu F,Kurucu N,Sanysag U.Status of plant available micronutrients in Türkish soils[M]//Soil and Fertilizer Research Institute Annual Report.Ankara,Turkey,1993:118.
[13] Graham R D,Ascher J S,Hynes S C.Selecting zinc-efficient cereal genotypes for soils of low zinc status[J].Plant and Soil,1992,146:241-250.
[14] Graham R D.Breeding for nutritional characteristics in cereals[J].J Plant Nutr,1984,1:57-102.
[15] Dong B,Rengel Z,Graham R D.Root morphology of wheat genotypes differing in zinc deficiency[J].J Plant Nutr,1995,9:2761-2773.
[16] Cakmak I,Gülüt K Y,Marschner H,et al.Effect of zinc and iron deficiency on phytosiderophores release in wheat genotype s differing in zinc efficient[J].J Plant Nutr,1994,17:1-17.
[17] Rengel Z,Graham R.Uptake of zinc from chelate-buffered nutrient solutions by wheat genotypes differing in zinc efficiency[J].J Exp Bot,1996,47:217-226.
[18] 吴兆明,王玉琦,孙景信,等.小麦种子含锌量在幼苗中的分配与对缺锌敏感性的关系[J].植物学通报,1998,15(4):51-54.
[19] 吴兆明,王玉琦,孙景信.不同品系小麦和小黑麦种子中金属元素含量的比较研究[J].作物学报,1996,22(5):565-567.
[20] 白厚义,肖俊璋.试验研究及统计分析[M].西安:世界图书出版公司,1998:46-47.
[21] 南京农业大学.土壤农化分析(第一版)[M].北京:农业出版社,1981.
[22] Gibson R S.Zinc:the missing link in combating micronutrient malnutrition in developing countries[J].Proc Nutr Soc,2006,65:51-60.
[23] Prasad A S.Zinc:Mechanisms of host defense[J].J Nutr,2007,137:1345-1349.
[24] 王人民,杨肖娥,杨玉爱.水稻耐低锌基因型的生长发育和若干生理特性的研究[J].植物营养与肥料学报,1998,4(3):284-293.
[25] 杨习文,田霄鸿,武绍飞,等.不同基因型冬小麦对氮肥与锌铁肥配施的反应[J].干旱地区农业研究,2007,25(3):17-22.
[26] 刘文菊,张西科,尹君,等.磷胁迫对水稻基因型根系形态和吸收铁锰铜锌的影响[J].生态环境,2003,12(1):49-51.
