| 梨酚类代谢与抗黑星病关系的研究——Ⅰ.总酚及OD酚与抗黑星病的关系 |
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| 引用本文： | 宋轶,冷怀琼,余师珍.梨酚类代谢与抗黑星病关系的研究——Ⅰ.总酚及OD酚与抗黑星病的关系[J].四川农业大学学报,1991(2). |
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| 作者姓名： | 宋轶 冷怀琼 余师珍 |
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| 作者单位： | 乐山市林业局，四川农业大学，四川农业大学 |
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| 摘 要： | 实验选用中国白梨(鸭梨、金花)和日本砂梨(新世纪、明月)的四个品种。通过对叶片接种梨黑星病菌(Venturia nashicola)分生孢子后,分期测定各品种的总酚。结果表明:总酚特别是OD酚与抗梨黑星病相关。但在两个梨系统中表现不尽相同。白梨系统中、抗病品种固有含酚量高于感病品种,接种后两者含酚量均增加,而抗病品种的酚尤其是OD酚含量增加明显。砂梨系统中感病品种固有含酚量高于抗病品种,接种后感病品种的含酚量最初下降,以后才上升;而抗病品种则相反开始便增加,OD酚持续增加至第10天。
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| 关 键 词： | 梨(45NL 49EL) 植物病害(49EL) 黑星病(49LB) 梨黑星病 梨黑星菌 |
STUDIES ON THE RELATION BETWEEN METABOLISM OF PHENOLIC SUBSTANCE AND RESISTANCE OF PEAR TO SCAB 1.The Relation Between the Content of Total of Phenols OD Phenol and Resistance of Pear to Scab |
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| Song Yi et al.STUDIES ON THE RELATION BETWEEN METABOLISM OF PHENOLIC SUBSTANCE AND RESISTANCE OF PEAR TO SCAB 1.The Relation Between the Content of Total of Phenols OD Phenol and Resistance of Pear to Scab[J].Journal of Sichuan Agricultural University,1991(2). |
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| Authors: | Song Yi |
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| Abstract: | Four varieties of pear inoculated with conidia (Venturia nashicola) wer used. The contents of total Phenols. OD phenol were analysed. The results have shown that the phenolics compounds, especially OD phenols, were connected with the resistance of pear to scab. There were different forms of expression in two species of pear. In the species of Pyrus bretchneider Rohd the scab-resistant variety contained more total phenols and OD phenols and OD phenol than those in scab-susceptible variety. It was contrary to the species of Pyrus pyrifolia Nakai. The infection of V. nashicola increased the content of total phenols particularly ODphenol in both varieties of the specious of Pyrus bretchneider.The change in resistant variety was more obvious and faster. In the second species of Pyrus pyrifolia, the infection of V. nashfcola increased the total phenols at the sec. day and the OD phenol from sec. to the 10th day bud decreased later in the resistant variety. In the susceptible variety, the infection redued the total phenols and OD phenol at first but incresed after the 5th day. |
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| Keywords: | SUBJECT WORDS: PEAR PLANTDISEAS APPLE SCAB FREE WORDS: PEAR SCAB VENTURIA NASHICOLA |
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