搜索结果: 1-7 共查到“作物育种学与良种繁育学 Brassica”相关记录7条 . 查询时间(0.027 秒)
Brassica oleracea genotypes displaying interesting fatty acid profiles for Brassica napus breeding
Brassica oleracea cabbage low-erucic acid mutant fatty acid composition breeding
2011/1/13
Brassica oleracea (CC) normally displays an erucic acid (22:1) content ranging from 28 to 63%. In the course of studies dealing with the inheritance of erucic acid content in the seed oil of Brassica ...
Antioxidant enzymes changes in response to drought stress in ten cultivars of oilseed rape (Brassica napus L.)
catalase guaiacol peroxidase isozymes oilseed rape superoxide dismutase water stress
2014/3/10
The study was undertaken to identify the responses of antioxidant enzyme activities and their isozyme patterns in seedlings of 10 oilseed rape (Brassica napus L.) cultivars under drought stress condit...
Cluster analysis in rapeseed（Brassica napus L.）
Genetic diversity cluster analysis genetic similarity and cluster pattern
2009/3/3
Many oilseed crops (e.g. sunflower, soybeans, rapeseed/mustard, sesame, groundnuts etc) are grown in Kenya. But oilseed rape is preferred because of its high yields (1.5 tons – 4.0 tons/ha) with hig...
辐射育种获得油菜（Brassica napus）高油酸材料
油菜 60Co电离辐射处理 高油酸育种
2008/1/2
本研究用8~10万伦琴60Coγ射线辐射双低油菜（B. napus）湘油15干种子，并对辐射后代进行高油酸连续选择，结果M2、M3、M4油酸含量有不同程度提高，至M5油酸含量迅速提高，多数植株油酸含量在70%以上，最高油酸含量达93.5%。对高油酸突变体M604-855（种子油酸含量为91.5%）的fad2基因与网上公布的fad2基因DNA序列进行比对，发现突变体fad2基因270位的碱基G转换为...
油菜(Brassica napus L. Cv. Topas)小孢子经高温(32℃)预培养导致外壁开裂, 形成裂外壁小孢子. 微室饲养培养技术结合定位追踪观察证实裂外壁小孢子具有胚胎发生能力. 33.3%的裂外壁小孢子能启动细胞分裂, 其中13.3%的裂外壁小孢子能持续分裂, 并遵循胚胎发生途径. 与完整小孢子不同, 第一次分裂既有均等分裂, 亦有不均等分裂, 两者均能导致胚胎发生. 将已分化的胚...
12C重离子束辐照对油菜(Brassica napus)的影响
12C重离子束 电离辐照 油菜
2007/12/28
重离子束是一种新型辐照源，它对油菜的影响以往研究较少。本文报道了30 Gy、50 Gy和80 Gy 12C重离子束辐照对油菜M1和M2生育期、植物学性状、品质性状，根尖和花粉母细胞的染色体行为和DNA分子多态性等方面的影响。结果表明：50 Gy和80 Gy辐照处理可引起油菜生育期提早，生长繁茂，部分植株发生变异，出现瘤状根、矮茎、淡绿匙形叶，多雌蕊花，双生角果和黄籽株等。80 Gy辐照处理使油菜种...
Utilisation of doubled haploids in winter oilseed rape (Brassica napus L.) breeding
winter oilseed rape doubled haploid homozygous line breeding
2014/3/19
A survey of development and prospects of the utilisation of doubled haploid techniques in rapeseed breeding in the world and in the Czech Republic is presented. The first utilisation of spontaneously ...