葡萄叶片中有机酸和糖与抗黑痘病的关系

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1985~1986年对原产我国的葡萄野生种叶片中可溶性糖和游离有机酸的含量与抗黑痘病的关系分别进行了探讨性研究。结果表明,叶片中游离有机酸和可溶性糖的含量与抗黑痘病存在着显著的相关关系。葡萄黑痘病(Spheceloma ampelinum deBarg)是为害欧洲葡萄[Vitis vinifera L.)最普遍、最严重的病害之一。国内外的研究认为,绝大多数欧洲葡萄品种不抗黑痘病,而对黑痘病的抗性与叶片中的游离有机酸和可溶性糖含量有关,从而将其作为指标对许多欧洲葡萄品种进行筛选,淘汰感病品种,扩大抗病品种栽培。现代育种实践证明,抗病的基因大多蕴藏在栽培植物的近缘野生种中,引进野生种质是解决抗性基因贫乏的关键措施。我国拥有丰富的葡萄野生资源,如何加速研究利用这些野生资源,无论在理论上还是在实践上都是急待解决的问题。为此,我们收集了大量的葡萄野生资源,并在对其进行抗病性鉴定基础上,研究了这些野生葡萄的叶片中游离有机酸和可溶性糖与黑痘病的关系,试图为葡萄抗病育种中亲本的选择和杂种苗的预选提供简便、快速鉴定的依据。 From 1985 to 1986, the relationship between the contents of soluble sugar and free organic acids and the resistance to anthracnose in the leaves of wild grapes native to China was studied. The results showed that the contents of free organic acids and soluble sugars in leaves were significantly correlated with anti-acne disease. Sphaceloma ampelinum de Barg is one of the most common and serious diseases that harm Vitis vinifera L. Domestic and foreign studies suggest that the vast majority of European grape varieties are not resistant to anthracnose and the resistance to anthracnose is related to the content of free organic acids and soluble sugars in the leaves, thus making it an indicator for many European grape varieties Screening, out of susceptible varieties, expand the cultivation of resistant varieties. Modern breeding practice has proved that most of the resistance genes are contained in the close relatives of cultivated plants. The introduction of wild germplasm is the key measure to solve the problem of poor resistance genes. Our country has a wealth of wild resources of grapes, how to speed up the research and utilization of these wild resources, both in theory and in practice are urgent problems to be solved. To this end, we collected a large number of wild resources of grapes, and on the basis of the identification of their resistance to these wild grapes leaves of free organic acids and soluble sugar and anthracnose in the relationship, trying to grape resistance The selection of parents in breeding and the preselection of hybrid seedlings provide the basis for simple and rapid identification.
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