WANG Guoli,LIU Zhenchang,FAN Hongying,et al.Correlation Analysis on Agronomic Traits of New Breeding Combinations in Momordica charantia L.[J].Northern Horticulture,2015,39(14):22-27.[doi:10.11937/bfyy.201514005]
苦瓜育种新组合农艺性状的相关性分析
- Title:
- Correlation Analysis on Agronomic Traits of New Breeding Combinations in Momordica charantia L.
- 文献标志码:
- A
- 摘要:
- 为探明与苦瓜产量相关的主要农艺性状，对已经获得的15个苦瓜育种新组合的茎、叶、花、果的31个农艺性状进行了详细的调查和数据分析。结果表明：这些新组合的31个农艺性状有14个表现一致性较高；对茎、叶性状与总产量的相关性分析表明，叶片宽和第一雌花节位与总产量显著负相关，相关系数分别为-0.503和-0.533；HY1B的第一雌花节位最小，产量最高，第一雌花节位13以下的有4个组合；对花、果性状与总产量的相关性分析表明，总产量与单瓜重和前期产量极显著正相关，相关系数分别为0.887和0.788；商品瓜横径和肉厚与苦瓜雌花数和雌花节率显著相关；据此，提出以第一雌花节位及单果重为选择苦瓜育种新组合主成分的育种思路；聚类分析可以将15个苦瓜育种新组合分为5组，分析亲缘关系发现，苦瓜杂交后代的性状偏向于母本，育种中父母本的选择非常重要，选择亲缘关系较远的新组合进一步杂交，其后代研究意义更大。
- Abstract:
- In order to ascertain the major agronomic traits correlated to the product of bitter melon，taking 15 new breeding combinations as materials，their agronomic traits in detail involved in stem，leaf，flower and fruit were investigated and analyzed.The results showed that there were 14 same agronomic traits among 31 traits.This indicated that these new combinations might have nearer genetic relationship.Correlation analysis on stem，leaf and total yield showed that leaf width and first female node both had significant negative correlation to total yield.HY1B had the highest yield because of its least first female node.The first female node of 4 new breeding combinations was below 13.Correlation analysis on flower，fruit and total yield showed that single fruit weight and pre-stage yield both had significant positive correlation to total yield，and the ration of female flower nodes was correlated significantly to commodity melon’s transverse and thickness.The results proposed a new breeding idea of taking first female node and single fruit weight as principal components used in selecting new breeding combinations in Momordica charantia.15 new breeding combinations were classified to 5 groups according to cluster analysis.Genetic relationship analysis showed that the filial generation traits were partial to their female parent，so selecting parents were very important for succeed breeding.More significance was found in selecting filial generations with more genetic relationship for further hybridation.
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备注/Memo
第一作者简介：王国莉（1974-），女，山西万荣人，博士，副教授，研究方向为植物生理及作物育种栽培。E-mail：77320364@qq.com.基金项目：广东省科技农业攻关资助项目(2012A020602068)。