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Frontiers of Agriculture in China

ISSN 1673-7334

ISSN 1673-744X(Online)

CN 11-5729/S

Front Agric Chin    2009, Vol. 3 Issue (1) : 7-12     DOI: 10.1007/s11703-009-0003-4
RESEARCH ARTICLE |
Influence of maize straw amendment on soil-borne diseases of winter wheat
Wenchao ZHEN1(), Shutong WANG1, Chengyin ZHANG1, Zhiying MA2()
1. College of Plant Protection, Agricultural University of Hebei, Research Center for Biocontrol Techniques Against Pests on Crops of Hebei Province, Baoding 071001, China; 2. College of Agronomy, Agricultural University of Hebei,Baoding 071001, China
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Abstract  

A field experiment was conducted during the 2006—2007 wheat growing season at Baoding, Hebei Province, China, aiming at exploring the influence of different amendment rates of maize straw on winter wheat soil-borne diseases induced by Rhizoctonia cereali, Gaeumannomyces graminis and Bipolaris sorokiniana in field conditions. Wheat root vitality, ion infiltration, SOD activity, MDA content and microbial population of the tillage layer were measured. The results showed that the occurrence of three soil-borne diseases tested was significantly different under different amendment rates. During the greening stage and jointing stage, the disease indexes of three soil-borne diseases were reduced significantly by treatments at the maize straw amendment rates of 7500 kg?hm–2 and 3750 kg?hm–2. However, disease indexes of wheat common rot and sharp eyespot increased dramatically when the amendment rate increased to 15000 kg?hm–2. At the amendment rate of 15000 kg?hm–2, wheat root vigor and SOD activity decreased, and ion infiltration and cell membrane-lipid peroxidation level increased, respectively. In the meantime, higher amounts of bacteria and actinomycetes were recorded in the 7500 kg?hm–2 amendment rate treatment, while a higher amount of fungi was recorded in the 15000 kg?hm–2 amendment rate treatment.

Keywords maize straw      winter wheat      soil-borne disease      soil microbe     
Corresponding Authors: ZHEN Wenchao,Email:wenchao@hebau.edu.cn; MA Zhiying,Email:mzy@hebau.edu.cn   
Issue Date: 05 March 2009
URL:  
http://academic.hep.com.cn/fag/EN/10.1007/s11703-009-0003-4     OR     http://academic.hep.com.cn/fag/EN/Y2009/V3/I1/7
stagetreatmentwheat take-all diseasewheat common rot diseasewheat sharp eyespot
disease incidence /%disease indexdisease incidence /%disease indexdisease incidence /%disease index
beforeH048.89 a10.16 a60.00 b20.63 b66.67 a09.52 a
overwinteringH148.89 a10.79 a60.00 b20.00 b60.00 a08.57 a
H240.00 a09.52 a44.44 c12.70 c43.33 b06.35 b
H346.67 a12.38 a75.56 a29.84 a64.44 a09.21 a
greening
stageH057.78 a19.68 a75.08 a32.70 b77.78 b19.37 b
H156.39 a17.14 ab68.89 a27.62 c77.78 b16.19 c
H246.67 b14.29 b68.89 a21.27 d77.78 b12.38 d
H355.56 a20.00 a75.56 a40.00 a88.89 a21.59 a
jointing
stageH073.33 a35.87 a80.00 ab42.54 b91.11 a37.14 b
H173.33 a33.33 a77.78 b37.78 c86.67 b32.70 c
H266.67 a26.67 b75.56 b27.94 d77.78 c25.71 d
H373.33 a37.14 a89.53 a50.79 a91.39 a45.71 a
filling
stageH088.89 a48.25 a86.67 a51.11 b100.00 a55.56 b
H180.00 b43.17 b84.44 a43.17 c100.00 a49.21 c
H275.56 b32.38 c80.00 b38.10 d100.00 a42.86 d
H380.00 b52.06 a86.67 a65.08 a100.00 a63.81 a
Tab.1  Status of soil-borne diseases of winter wheat in different treatments
Fig.1  Effect of maize straw incorporation on root activity in TTC reduction
Fig.2  Effect of maize straw incorporation on root electrolyte leakage
Fig.3  Effect of maize straw incorporation on SOD activities
Fig.4  Effect of maize straw incorporation on root lipid peroxidation
Fig.5  Effect of maize straw incorporation on quantity of bacterium in winter wheat field soil
Fig.6  Effect of maize straw incorporation on quantity of fungi in winter wheat field soil
Fig.7  Effect of maize straw incorporation on quantity of actinomycetes in winter wheat field soil
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