| 培育刺玫月季新品种的初步研究(Ⅳ)——若干亲本与杂交种的抗寒性研究 |
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| 引用本文： | 马燕,陈俊愉.培育刺玫月季新品种的初步研究(Ⅳ)——若干亲本与杂交种的抗寒性研究[J].北京林业大学学报,1992(1). |
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| 作者姓名： | 马燕 陈俊愉 |
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| 作者单位： | 北京林业大学园林系
(马燕)，北京林业大学园林系(陈俊愉) |
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| 摘 要： | 对刺玫月季育种中的部分亲本和杂交种的枝条,进行不同温度冰冻处理后,采用电阻法测定其电阻值;同时,进行生长恢复试验。依据电阻测定值及扦插存活率,确定植株的抗寒能力。对一些亲本和杂交种枝条的电阻测定值进行回归分析,并建立电阻值与存活率的相关数学模型;通过与相关曲线的对比,结合越冬后抽条率的统计,对一些杂交种的抗寒性进行预测。从遗传角度初步探讨了亲本与子代的抗寒性关系。最后提出了在育种中进行抗寒性研究的可行方法。
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| 关 键 词： | 刺玫月季 冰冻处理 电阻测定法 生长恢复试验 抗寒性 |
A Study to Evaluate Cold Hardiness of Some Parent Plants and Hybrid Seedlings During Breeding New Cultivars for Establishing A Rejuvenation Rose Group |
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| Ma Yan Chen Junyu.A Study to Evaluate Cold Hardiness of Some Parent Plants and Hybrid Seedlings During Breeding New Cultivars for Establishing A Rejuvenation Rose Group[J].Journal of Beijing Forestry University,1992(1). |
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| Authors: | Ma Yan Chen Junyu |
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| Abstract: | 28 parent plants and hybrid seedlings with different cold-hardiness were studied using the tissue electrical resistance method and the restoring growth test. A numeral avometer was employed to determine the electrical resistance of the shoot segment of parent and hybrid seedling tissue. The cold hardiness of parent plants and that of some hybrid seedlings was evaluated by calculating the survival rate after different freezing temperature treatments. The relationship between tissue electrical resistance and freezing temperatures and that between tissue electrical resistance and the survival rate of parent plants was established by regression analysis. Based on this model, the cold hardiness of some hybrid seedlings was evaluated. The ralationship of cold hardiness between some parent plants and their hybrid seedlings is discussed. |
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| Keywords: | breeding of rejuvenation rose group tissue electric resistance restoring growth test regression analysis cold hardiness |
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