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作 者:戴祥来 向阳[1] 赵继献[1] 任廷波 程国平[1] Dai Xianglai;Xiang Yang;Zhao Jixian;Ren Tingbo;Cheng Guoping(Guizhou Academy of Agricultural Sciences,Guizhou Rape Institute,Sinan Guizhou 565109)
机构地区:[1]贵州省农业科学院油菜研究所
出 处:《中国农学通报》2019年第20期13-19,共7页Chinese Agricultural Science Bulletin
基 金:贵州省科研机构服务企业项目“油菜育繁推技术与创新与服务”(黔科合服企[2015]4001号);贵州省高层次创新型人才培养项目“油菜品种选育与产业化”(黔科合人才[2015]4018号);中央引导地方科技发展专项资金项目“贵州省油菜商业化育种技术平台建设”(黔科中引地[2016]4002号);贵州省现代农业产业技术体系建设项目“油菜产业技术体系建设”(GZCYTX2013-0802);贵州省农科院自主创新科研专项“高产优质高效油菜分子标记育种技术研究与新种质创新”[黔农科院自主创新科研专项字(2014)014号]
摘 要:为研究甘蓝型杂交油菜角果长度与产量构成因素的相关关系,以649个甘蓝型杂交油菜组合进行田间试验、室内考种及相关分析。结果表明,甘蓝型杂交油菜角果长度平均为6.4596 cm,变幅范围4.7184~8.6463 cm,角果长度在5~7 cm之间的材料占总数比例的96.76%,而平均角果长度≥8 cm的材料只占群体比例的1.54%,<5 cm的材料也只占群体比例的1.70%,说明油菜长角果与短角果材料都较少。角果长度与千粒重(r=0.3815)、角粒数(r=0.4324)及单株产量(r=0.2347)呈极显著正相关,角果长度与单株角果数(r=0.0076)呈不显著正相关,说明在选育长角果材料的同时可以提高千粒重、角粒数及单株产量,且不会降低单株角果数。由此可知,提高油菜的角果长度有利于提高油菜产量。To study the correlation between pod length and the yield components of hybrid Brassica napus, 649 combinations of B. napus were used in field experiment, laboratory test and correlation analysis. The results showed that: the average pod length of hybrid B. napus was 6.4596 cm, the range was 4.7184-8.6463 cm,materials with pod length of 5-7 cm accounted for 96.76% of the total, however, those with average pod length greater than or equal to 8 cm was only 1.54%, and those less than 5 cm was only 1.70%, indicating that the materials with long or short pod were not much in rape. Pod length had extremely and significantly positive correlation with 1000-grain weight(r=0.3815), seeds per pod(r=0.4324) and yield per plant(r=0.2347), and insignificant positive correlation with pods per plant(r=0.0076), showing that breeding long pod material could improve the 1000-grain weight, seeds per pod and yield per plant, and maintain the pods per plant. Therefore,increase of rape pod length is beneficial to rape production.
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