CAJ | 학술논문

油菜生产效益的提高有赖于机械化进程的推进,而机械化收获要求油菜品种具有较强的抗裂角性.为明确我国最新育成的油菜杂交种(或品系)对机械化收获的适应性,以改进后的随机碰撞法对2008年参加湖北省和全国长江中游区油菜品种区试的50份甘蓝型油菜进行了抗裂角性鉴定.结果表明,抗裂角指数为0.020～0.470,对照品种中油杂2号的抗裂角指数为0.218,大致处于中间值.将抗裂角指数范围分为:>0.4,0.3～0.4,0.2～0.3,0.1～0.2及<0.1五个区域,被鉴定的50份甘蓝型油菜在这5个区域的分布频数分别为5,5,10,17和13个,表明我国最近育成的油菜杂交种(或新品系)的抗裂角性存在较大的差异,有望通过筛选获得适合机械化收获的品种.对抗裂角指数较高的10份材料的产量和品质性状进一步分析,筛选出了三北98、中油112等2个通过了区试并获得审定、具有适合机械化收获性状的油菜新品种,可以直接推广利用.
유채생산효익적제고유뢰우궤계화진정적추진,이궤계화수획요구유채품충구유교강적항렬각성.위명학아국최신육성적유채잡교충(혹품계)대궤계화수획적괄응성,이개진후적수궤팽당법대2008년삼가호북성화전국장강중유구유채품충구시적50빈감람형유채진행료항렬각성감정.결과표명,항렬각지수위0.020～0.470,대조품충중유잡2호적항렬각지수위0.218,대치처우중간치.장항렬각지수범위분위:>0.4,0.3～0.4,0.2～0.3,0.1～0.2급<0.1오개구역,피감정적50빈감람형유채재저5개구역적분포빈수분별위5,5,10,17화13개,표명아국최근육성적유채잡교충(혹신품계)적항렬각성존재교대적차이,유망통과사선획득괄합궤계화수획적품충.대항렬각지수교고적10빈재료적산량화품질성상진일보분석,사선출료삼북98、중유112등2개통과료구시병획득심정、구유괄합궤계화수획성상적유채신품충,가이직접추엄이용.
The elevation of rapeseed production efficiency relies on mechanization.Pod shatter resistance of varieties is highly required for machine harvesting.In order to understand the suitability of newly developed lines for machine harvesting,50 hybrids or lines involved in Hubei provincial regional trials and the national regional trials of the middle Yangtze river reaches were assessed for pod shatter resistance using improved random impact test method. The results showed that pod shatter resistant index ranged from 0.020-0.470,with that of the control variety Zhongyouza 2 being 0.218,approximately in the middle of the range. The frequency distribution of the materials were 5,5,10,17 and 13 when the pod shatter resistant index was divided into five regions (>0.4,0.3-0.4,0.2-0.3,0.1-0.2 and <0.1),indicating significant variation of pod shatter resistance among new hybrids or lines from different breeding programs.Based on further analysis of 10 hybrids or lines with relatively high pod shatter resistance on other agronomical important traits,2 hybrids which have passed the trials and will soon be released were selected for use in mechanization production of rapeseed.