| 陈勇生，黄俊坚，吴嘉云，齐永文，劳方业.30 个常用甘蔗亲本资源初步评价分析[J].广东农业科学,2021,48(3):26-32 |
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30 个常用甘蔗亲本资源初步评价分析 |
| Preliminary Evaluation and Analysis of 30 Frequently-used Parents in Sugarcane Germplasm Resources |
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| DOI：10.16768/j.issn.1004-874X.2021.03.004 |
| 中文关键词: 甘蔗 亲本 性状 评价 聚类分析 |
| 英文关键词: sugarcane parent trait evaluation cluster analysis |
| 基金项目:国家重点研发计划项目（2018YFD1000503）；国家糖料产业技术体系项目（CARS201707）；广东省科学院建设国内一流研究机构行动专项资金（2019GDASYL-0104013）；广东省甘蔗剑麻产业技术体系创新团队项目（ 2019KJ104-04）；广州市科技项目（201804010418） |
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| 中文摘要: |
| 【目的】研究甘蔗（Saccharum spp.）亲本特性，为甘蔗杂交育种提供参考。【方法】对 30 个常用甘蔗亲本资源进行初步评价，分析其在锤度、茎径、株高和分蘖率等性状上的差异性，应用聚类分析法进行分类。【结果】30 个常用甘蔗亲本资源在锤度、茎径、株高和分蘖率等方面差异达到显著或极显著水平。聚类分析结果表明，30 个甘蔗亲本可分为 6 类。第Ⅰ、Ⅱ类是高锤度细茎亲本类型，其中第Ⅰ类表现分蘖较少、植株较矮，第Ⅱ类则表现分蘖多、植株较高；第Ⅲ、Ⅳ类是低锤度中茎至中细茎亲本类型，其中第Ⅲ类表现分蘖较多、植株高，而第Ⅳ类则表现分蘖少、植株较高；第Ⅴ、Ⅵ类是中等锤度且中茎至中大茎亲本类型，其中第Ⅴ类表现分蘖中等、植株高度中等，第Ⅵ类则表现分蘖中等、植株矮。【结论】参试亲本中，引进美国甘蔗品种多属早熟高糖材料，而多数自育亲本材料则产量性状方面表现较好，如粤糖 60、福农 95-1702 和云蔗 89-391 在茎径方面有突出优势。在实际甘蔗育种工作中，参试亲本中 CP57-614、CP67-412 等已经用于我国甘蔗育种杂交计划，而新引进材料如 HoCP07-612、HoCP07-613 则可考虑进一步加大利用。 |
| 英文摘要: |
| 【Objective】The parental characteristics of Saccharum spp. were studied to provide references for sugarcane hybrid breeding.【Method】Thirty frequently-used parents of sugarcane germplasm resources were preliminarily evaluated, among which the differences in brix, stem diameter, plant height and tiller rate were analyzed, and the cluster analysis were applied to classify these parents.【Result】There were significant or very significant differences among these parents in brix, stem diameter, plant height and tiller rate. The cluster analysis result showed that these 30 parents could be divided into 6 groups. Both the parents of type Ⅰ and type Ⅱ had high brix and small stem diameter, while the tiller rate and plant height of the parents of type Ⅰ were both lower than those of the parents of type Ⅱ ; Both the parents of type Ⅲ and type Ⅳ had low brix, small to middle and middle stem diameter and high stalk, while the tiller rate of the parents of type Ⅲ was higher than that of the parents of type Ⅳ ; Both the parents of type Ⅴ and type Ⅵ had middle brix, middle and middle to big stem diameter and middle tiller rate, while the plant height of the parents of type Ⅴ was higher than that of the parents of type Ⅵ .【Conclusion】Among these tested parents, most of the imported American sugarcane varieties had earlier maturity and higher sucrose content, while many materials bred in China performed better on yield characters, for example, Yuetang60, Funong95-1702 and Yunzhe89-391 had biggest stem diameter. In the practical sugarcane breeding, some tested parents such as CP57-614 and CP67-412 have already been used in sugarcane breeding program, and the imported varieties in recent years such as HoCP07-612 and HoCP07-613 would be further utilized. |
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