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1.
抗生素诱导油用亚麻雄性不育的研究   总被引:11,自引:1,他引:11  
试验用链霉素等5种抗生素地油用亚订品种(系)陇亚8号、9410、9033的种子进行浸泡处理,诱导雄性不育突变体,对获得的不育材料进行特征特性观察以及育性遗传分析。研究结果表明:(1)5种抗生素的均能均发有和亚麻雄性不育突变,变剂种类,处理浓度油用亚麻品种是影响诱变效果的重要因素。(2)9410诱变处理获得3株不育株,其M2表现育性分离,诱变不育性可以遗传。  相似文献   

2.
甘蓝型春油菜双低高产新品种陇油2号的选育孙万仓,张涛,杨玉萍,张有元,刘元寿,路海儒,安贤惠(甘肃省农科院经济作物研究所兰州730070)陇油2号原代号B106—13—3,是甘肃省农科院经作所以里金特为母本、奥罗为父本杂交,经过丰产性、品质及适应性鉴...  相似文献   

3.
陇油一号是甘肃省农科院经济作物研究所从加拿大油菜品种米达斯(Midas)中经7年系统选择培育的甘蓝型春油菜新品种。1987年8月通过省级技术鉴定,1988年4月通过甘肃省农作物品种审定委员会审定,定名为陇油一号。该品种具有含油率高,品质好、高产、适应性广等特点,来自省内外的专家  相似文献   

4.
杨振武 《作物研究》1994,8(2):47-47
棉花与油菜套种栽培技术杨振武(湖南省安乡县农业局415600)1品种选择与种植规格棉花与油菜套种的棉花品种主要有泗棉2号、湘棉15号等。油菜应选择高产、早熟或中熟偏迟的高杆品种,如杂交油菜秦油2号,双低油菜湘油13号,还有湘油10号等。棉油两熟套种,...  相似文献   

5.
白菜型油菜品种、自交系与甘蓝型油菜波里马细胞质雄性不育系杂交、回交至BC2F1,再用南方白菜型油菜自交系与BC2F1测交,花期研究测交后代育性变化规律及定株定时观察白菜型波里马细胞质雄性不育材料与29A、广丰A、阿油A三种白菜型细胞质雄性不育材料育性变化情况.结果表明,在26个测交后代中,雄性不育的占23.1%,恢复可育的占7.7%,介于两者之间或育性分离的占69.2%.在南方白莱型油菜中发现能完全恢复育性的自交系。白菜型波里马细胞质雄性不育材料的不育性较其他三种不育材料稳定.可为油蔬两用的南方白菜型油菜杂种优势利用提供新的不育源。  相似文献   

6.
两种新杀雄药在油菜上的应用简报   总被引:1,自引:1,他引:1  
杨交礼  王国槐 《作物研究》2006,20(3):227-230
对两种新杀雄药化杀灵和草甘膦在甘蓝型油菜湘油15号上进行了杀雄效果研究。结果表明,化杀灵在油菜植株最大花蕾长达2.5mm时喷施,杀雄效果非常理想,1:140~90的浓度范围处理油菜不育株率都在90.0%以上,且无药害株;1:90的化杀灵中附加生长调节剂赤霉素辅助处理显示,0.139%的赤霉素在部分植株上表现出了生长促进作用,不育株率提高到100%。草甘膦则药害严重,不宜在油菜上做杀雄剂使用。  相似文献   

7.
引进我国长江流域甘蓝型半冬性双低品种(系),在陕西关中生态条件下连续多年进行适应性选择,选育出适宜关中的双低自交系;用这类自交系与不育株测交和回交,育成不育株率100%、不育度95%以上的不育系212A、218A、159A等。用多亲本复合杂交改良的单、双低恢复系116C、1102C与不育系测交,育成了陕油6号、陕油8号等品种。2000年陕油6号通过陕西省农作物品种审定委员会审定,2001年陕油8号通过国家农作物品种审定委员会审定。  相似文献   

8.
7个甘蓝型胞质不育油菜杂交种的研究结果表明,不同不育系配制的杂交种的不育株率有显著差异,而不育系相同恢复系不同的杂交种,不育株率差异不显著。不育株分枝部位高、有效分枝数少、单株角果数少、角果结实性差。不育株比正常杂种株减产16.2%-42.6%,不育株的产量对照优势率为-8.3%--33.8%,不育株造成杂交种的群体产量下降0.75%-3.61%。7个杂交种的临界不育株率为3.62%-71.05%。  相似文献   

9.
(一)来源 1977年从甘蓝型油菜川农长角/米达斯的F4中发现一不育株,经与川油花叶等品种杂交,转育成不育系37A,再与恢复系8345组配出早熟丰产适应性广的杂交油菜8549N。 (二)不育系选育 1、37A选育 198A/川油花叶的F_1分离出不育株和可育株,从F_1起用川油花叶连续选优株回交育成37A。选育过程如下图。  相似文献   

10.
甘蓝型油菜新型细胞核雄性不育材料的选育   总被引:1,自引:0,他引:1  
从甘蓝型油菜品种中油821中发现的天然雄性不育株,经测交、姊妹交、不育株自交及异地穿梭育种等方法选育而来的生态型隐性胞核雄性不育材料H90S,是不同于原双隐性基因控制的隐性核不育材料(117A、S45A等)的一种新型胞核不育材料。经5年9代选育,已得到全不育株行,并有两年的重演性。其育性受环境条件影响,其中主要受花芽分化期光照时数及花芽分化至初花期活动积温控制,可以异地夏播繁殖、本地秋播正季制种。  相似文献   

11.
针对豫北地区的大豆生产现状,从气候、土壤、品种、生态因素及市场需求等方面提出了优质大豆的发展策略与途径。  相似文献   

12.
Irrigation of Netted Gem potatoes was scheduled during three growing seasons by three methods: (a) when plants displayed first visual symptoms of moisture stress, (b) when indicated by a soil moisture budget involving estimated evapotranspiration, and (c) on the basis of tensiometer readings of soil moisture suction. When the tensiometer method of scheduling was used, the mean yields of tubers were 55.0 and 25.8 cwt/acre (6160 and 2890 kg/ha) higher than those obtained with the other two scheduling methods. Methods did not affect the specific gravity of potatoes. Method (a) scheduled irrigations least frequently. Scheduling by the budget method was not always adequate because it was based on the assumption that the crop extracted water from a constant 4 ft (1.2 m) profile from planting to full vegetative growth. In one year the budget method scheduled the first irrigation earlier than necessary and delayed the second irrigation during a critical period of crop growth. From full vegetative cover to harvest the irrigation schedules were alike for both the budget and tensiometer methods.  相似文献   

13.
1 吉林省平安农业科学院大豆研究工作简介吉林省平安农业科学院大豆研究所 ,设在吉林省长春市西安大路种子大厦内。现有科技人员 6人 ,其中研究员 2人 ,农艺师 2人 ,技术员 2人 ,定向培养研究生 2人。大豆研究所的主要任务是选育稳产、高产、优质及抗病虫大豆新品种 ;同时密切  相似文献   

14.
以长沙县高桥相同嫩度茶鲜叶原料采用卷曲形毛尖茶加工工艺制绿茶为对照,分别对沅陵县齐眉翠峰、凤娇碣滩茶、干发茶和军大坪茶4种绿茶的主要生化成分与感官品质进行初步分析。结果表明,沅陵4种绿茶的茶多酚总量28.76%~30.34%,游离氨基酸总量2.35%~3.22%,咖啡碱含量3.00%~3.63%,水浸出物含量37.26%~40.07%,可溶性糖总量5.46%~5.65%,可溶性蛋白含量1.50%~1.74%,类黄酮化合物总量1.16%~1.79%,叶绿素总量1.36%~2.01%,儿茶素总量13.53%~16.20%。与对照相比,4种绿茶的茶多酚、可溶性糖和儿茶素总量均高于对照,除齐眉翠峰外其余3种茶样水浸出物和叶绿素总量均高于对照,除干发茶外其余3种茶样类黄酮化合物总量均高于对照。  相似文献   

15.
16.
In the western Sahel, indigenous plants become important staples when cereal harvests are inadequate to support populations inhabiting that region of Africa. The purpose of this study was to assess the nutrient content of several of these edible wild plants. The leaves of the following seven plant foods were analyzed: Ziziphus mauritiana, Cerathotheca sesamoides, Moringa oleifera, Leptadenia hastata, Hibiscus sabdarifa, Amaranthus viridi, and Adansonia digitata. The fatty acid, vitamin E, carotenoid, selected mineral and amino acid contents of these plant foods were determined. These same analyses were performed on the fruit of the Adansonia digitata. In quantitative and qualitative terms, Amaranthus viridis was found to be an excellent source of protein. Its amino acid composition compared favorably to that of a World Health Organization (WHO) protein standard. It also contained considerable amounts of the two fatty acids that are essential in humans (linoleic and -linolenic) and a number of minerals including iron, magnesium, calcium and zinc. The leaves of Hibiscus sabdarifa contained an appreciable quantity of protein the composition of which was comparable to the WHO standard. The mineral content of the leaves of this plant was also exceptionally high; noteworthy was its high zinc content. H. sabdarifa also contained significant quantities of the two essential fatty acids. Ziziphus mauritiana was an excellent source of the essential fatty acid linoleic acid and several of the metals including iron, calcium, magnesium and zinc. Its content of other essential nutrients, however, was rather low. In general, Adansonia digitata leaves were nutritionally superior to the fruit of the tree; however, the fruit did contain useful quantities of potassium, phosphorus, zinc and -linolenic acid. The Leptadenia hastata leaves were an especially good source of lutein and -carotene. These data should be useful to the people who inhabit the western Sahel in helping them devise healthy diets during times when cereal staples are in short supply.  相似文献   

17.
通过对防治水稻潜叶蝇不同药剂、不同用量的田间对比试验,结果表明,32 g/kg的35%丁硫克百威拌种预防潜叶蝇效果最好,药效可达55 d以上,适宜在生产上推广应用。  相似文献   

18.
通过电解质外渗法和匍匐茎恢复试验对‘阳江’狗牙根及其12个通过形态鉴定选出的坪用价值高且花序密度低的诱变后代进行抗寒性鉴定。电解质外渗法结果表明:诱变后代间的抗寒性具有较大差异,其叶片半致死温度(LT50)的变异范围为-7.6~-0.2℃(最低值与最大值相差7.4℃);参试材料抗寒性由强到弱依次为M18>M4>M26>M28> M22>阳江>M29>M31>M10>M37>M16>M1>M25,其中,有5个诱变后代抗寒性优于亲本,分别是M18、M4、M26、M28、M22。匍匐茎恢复实验结果表明:诱变后代M1、M22、M26、M31、M25在0℃和-5℃低温胁迫后的恢复生长率都高于亲本,恢复能力均优于亲本;M10、M37、M28在-5℃低温胁迫下,恢复生长能力低于亲本,抗寒性相对较弱,M16和M4在0℃和-5℃低温胁迫下,恢复生长率都低于亲本,抗寒性明显弱于亲本。综合2种方法鉴定结果显示:诱变后代M1、M25的恢复能力较强;M4、M28的叶片抗寒性较好,青绿期较长;M22、M18、M26的叶片抗寒性和匍匐茎恢复能力均较强;M29,M31的叶片抗寒性和匍匐茎恢复能力与亲本相似;M10、M16、M37的叶片抗寒性和匍匐茎恢复能力均较弱,整体抗寒性较弱。  相似文献   

19.
20.
对造成福建省漳州市东山县的芦笋枯萎病病原菌进行分子鉴定,以期确定病原菌的属、种名,为防治该病害寻求理论依据。试验对分离纯化的病原菌核糖体DNA的ITS区进行测序,在Genbank中搜索其同源性并构建它们的系统发育树,结果表明:引起芦笋枯萎病的病原菌是镰刀属中的尖孢镰刀菌(Fusarium oxysporum),且病原菌之间的同源性高达89%,遗传差异不显著。  相似文献   

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