论文部分内容阅读
1985年由于多雨、低温,加上晚秋和初冬的异常气候,使我省果树遭受了较为严重的冻害。我所杏种质资源也严重受冻。本文通过对我所杏种质源圃中309个品种(系)的冻害调查,探讨了杏种质资源的冻害发生程度与品种、树龄、品种的原产地、树体发育状况以及同一品种的不同枝类,部位之间的关系。经过实践还提出了一套冻害后的管理措施。果树抗寒力的鉴定,是果树种质资源研究的一个重要部分。抗寒力鉴定的方法有多种,但常因操作繁杂或限于仪器设备,较难进行,并且均不及自然鉴定客观、准确。 1985年由于多雨、低温,加上晚秋和初冬气候反常,全省各地果树普遍发生了冻害,这给杏种质资源提供了一个自然鉴定的有利机会。我所杏种质资源圃中(我所是国家李、杏种质资源保存单位)的品种(包括品系-一下同),在这次冻害中,表现了抗寒力的巨大差异。为了更好地利用杏种质资源,搞好品种区划,为抗寒育种提供可靠原始材料,我们在这次冻害中,对资源圃中的309个品种进行了抗寒力调查,现将调查结果报告如下:
In 1985, because of the rainy and cold temperatures, coupled with the unusual climate of late autumn and early winter, the fruit trees of our province suffered more serious frost damage. My apricot germplasm resources are also seriously frozen. In this paper, we investigated the frost damage of 309 varieties (lines) of the apricot germplasm resources nursery, and discussed the degree of frostbite occurrence and the varieties, age, origin of the cultivars, the development status of the tree species and the differences of the same species Branches, the relationship between parts. After practice also put forward a set of management measures after frost damage. Identification of cold hardiness fruit trees, fruit trees germplasm resources research is an important part. There are many ways to identify the cold resistance, but often complicated or limited by the operation of equipment, more difficult, and are not as natural and objective identification, accurate. In 1985, due to the rainy and low temperature, coupled with the anomalous climate in late autumn and early winter, frost damage occurred frequently in fruit trees throughout the province, which provided a favorable opportunity for the identification of apricot germplasm resources. In the apricot germplasm resources garden (I am the national plum, apricot germplasm resources preservation unit) varieties (including lines - about the same), in the frost damage, the performance of the great difference in cold hardiness. In order to make better use of apricot germplasm resources, do a good job of regionalization of varieties and provide reliable raw materials for cold breeding, we conducted a survey of the cold hardiness of 309 varieties in the resource nurseries during the frost damage. The report is as follows: