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“丹598”玉米自交系为辽宁省丹东农业科学院完成的重大科研成果。其多抗、高配合力、适应广泛等主要性状均有重大突破性创新,达国际先进水平。是近十年来我国玉米育种组配杂交种最多、应用范围广、推广面积大、经济社会效益极其显著的重要骨干自交系之一。2007年获农业部神农中华农业科技一等奖。 相似文献
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铁单21号(原代号铁303)是铁岭市农业科学院于2001年以外引系丹1324为母本,自选系铁D9125为父本组配成的单交种.该杂交种母本自交系丹1324是丹东农业科学院利用美国自交系为种质资源,经过多代回交及自交选育而成的多抗、优质、抗倒伏的玉米自交系,父本自交系铁D9125是铁岭市农业科学院以丹340与美国杂交种选系杂交为基础材料经过连续自交选育而成.铁单21号于2002年参加组内品种比较试验,2003～2004年参加辽宁省中熟组区域试验,2004年同时参加省生产试验.2004年通过辽宁省农作物品种审定委员会审定.结果表明,该组合是一个高产、优质、抗病、抗倒、株型清秀、活秆成熟的中熟玉米杂交种. 相似文献
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优良玉米自交系丹598的主要特点及对国内玉米生产的贡献 总被引：2，自引：0，他引：2
丹东农业科学院玉米育种专家陈刚研究员主持选育的"优良玉米自交系丹598"是目前国内玉米生产和科研方面应用最广的玉米自交系之一,以丹598为亲本,与Reid和Lancaster种群选系杂交具有很强的杂种优势,用其组配的玉米杂交种具有抗性强、米质优、适应范围广等突出特点,如丹玉26号、丹玉39号、丹科2123、丹科2151、丹科2162和东单60等杂交种,已在全国大面积推广应用,创造了显著的社会效益和经济效益。丹598玉米自交系对我国玉米育种与玉米生产的不断进步发挥了积极的推动作用。 相似文献
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玉米自交系丹黄34由丹东农业科学院育成。配合力高,株型紧凑上冲,抗各种病害。其所配杂交组合表现熟期适中、高产、稳产、高抗、米质较好等优点,适宜在我国北方玉米各主产区种植。 相似文献
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优良玉米自交系的遗传分析 总被引：6，自引：1，他引：6
优良玉米自交系的遗传分析高彦东，姜明月（辽宁省农业科学院玉米研究所１１０１６１）玉米生产的发展在很大程度上决定于玉米品种的更新，而品种的更新则以新自交系的育成为基础。王富德等（１９９３年），姜明月（１９９４年）在分析我省玉米的种质基础时都曾指出丹３４... 相似文献
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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
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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
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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
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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
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Sena L.P. VanderJagt D.J. Rivera C. Tsin A.T.C. Muhamadu I. Mahamadou O. Millson M. Pastuszyn A. Glew R.H. 《Plant foods for human nutrition (Dordrecht, Netherlands)》1998,52(1):17-30
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
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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
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