Jemseg: A new,early high-yielding potato variety with high resistance to virus Y and immune to virus X

Jemseg is an early sizing variety of early maturity. It has outyielded the variety Warba for total and marketable yield when dug at 80 days from planting. It has moderate resistance to common scab, is immune to virus X and has high resistance to virus Y, plus resistance to virus S. Jemseg was originated at Fredericton, New Brunswick, and is a product of the potato breeding program of Agriculture Canada. The variety has been under test in New Brunswick for 10 years as seedling F67072. It has also been tested extensively in the Maritime Provinces and throughout Canada through the facilities of regional and national evaluation trials. Jemseg was selected from a progeny of a cross between the variety Sable and a Fredericton seedling F55069. Sable is an early variety developed at Fredericton. F55069 is a Fredericton seedling bred for X immunity and scab resistance. Jemseg was first grown in the field in 1967. The pedigree follows:      

平阳特早茶研究

平阳特早茶属灌木型中叶类特早生种。春菜开采期在２月２７－３月６日,４月５日前春茶采摘结束。一芽３叶百芽重为３９．８克,亩产值为６０３２．２元,比福鼎白毫高出７７．７％。春茶产值为４３０４．３元,占全年总产值的７１．４％。平均特早茶适应性强,移栽成活率〉９０％。平阳特早茶无生殖生长。细胞学研究发现,其染色体数为３０,核型属１Ａ型。制绿茶的品质优于福鼎白毫和永嘉乌牛早;其芽叶生化有效分分别比永嘉乌牛     

早花时矮秆晚粳不育系春江12A的选育与利用

春江12A是中国水稻研究所以宁67A为母本,用春江12作父本杂交,经连续多代回交转育而成的滇Ⅰ型早花时矮秆晚粳不育系,2004年9月通过浙江省科技厅鉴定.春江12A育性稳定,不育度和不育株率均为100%,花时早,异交结实率高,矮秆抗倒,穗型大,米质优良,配合力好.利用春江12A配制的粳粳交和粳籼交杂交稻组合表现出大穗、抗倒、杂种优势强、产量潜力大、米质较优等特点.     

高香型优质乌龙茶新品系瑞香选育简报

采用系统选种法,从黄旦自然杂交后代中育成了高香型优质乌龙茶新品系瑞香。结果表明,瑞香属中叶类,中生种,一芽三叶期与铁观音相近;鲜叶产量比母本黄旦增产10%以上。制乌龙茶花香显,滋味醇厚有香,耐泡,品质明显优于黄旦,且制优率高。茶多酚总量24.1%、水浸出物总量43.4%,氨基酸总量3.0%、咖啡碱总量2.9%、儿茶素总量14.6%、L-EGCG含量5.4%,成品茶香精油总量128.98,明显高于母本,其乌龙茶香气主要组分为橙花叔醇、吲哚、β-紫罗酮+(Z)茉莉酮、苯甲醛、茉莉内脂等。抗逆性和适应性与对照种无显著差异。     

天优2155在上杭县种植表现及高产栽培技术

三系籼型杂交稻天优2155是由福建省三明市农科所、福建六三种业有限责任公司和广东省农科院水稻所育成,2011年通过福建省农作物品种审定。经上杭县3 a试种示范,表现生育期适中,产量高,中抗稻瘟病,米质较好,适宜在上杭县低海拔地区作双季早稻种植。介绍了其在上杭县种植的特征特性及高产栽培技术。     

高产优质乌龙茶新品系紫龙袍选育

紫龙袍是从武夷大红袍副株的自然杂交后代中, 经系统选育而成的一个高产优质乌龙茶新品系。该品系的春茶开采期在5 月上旬, 与铁观音相近, 属迟生种。品种比较试验结果表明,5 ～8 龄的茶树4 年平均产量分别比黄旦和铁观音高93 % 和418% 。三明和安溪的区域试验也表明, 5～7 龄的茶树3 年平均产量比对照品种高27% ～59 % 。该品种制乌龙茶, 品质优异, 外形重实, 香浓长, 花香显, 滋味醇爽耐泡, 可与黄旦相媲美。茶多酚含量达35-48 % , 水浸出物46-49 % , 氨基酸含量4-32 % , 咖啡碱3-28 % , 成茶香气成分中的α 法呢烯、橙花叔醇含量高于2 个对照品种, 适应性好, 抗逆性与对照品种相当。     

优质籼稻不育系95A的选育

９５Ａ是用９５占为父本、珍汕９７Ａ为母本杂交，再连续回交选育成的野败型不育系，不育性稳定，株叶型和粒型好，分蘖力强，有效穗多，穗长粒多，米质好，抗性好，柱头外露率高，异交结实率高，易于繁殖、制种。１９９６年７月通过技术鉴定。     

云南保山东13柱柑引种观察与主要栽培措施

云南保山1987年开始从省外引入桔类优良品种东13桩柑进行试种试验,多年观察结果,该品种在当地柑桔适宜区生长快、结果早,丰产、稳产,优质,保山海拔900～1300m的区域为其适宜种植区;通过试验示范,还总结出保山东13拦柑主要栽培措施。     

优质油料种源诸葛菜

十字花科诸葛菜(Orychophragmus violoceus)是我国有开发价值的优质油料作物种源。1.诸葛菜的种子油分品质优良.农艺性状较好.是潜在的优质油料新作物。2.诸葛莱的种子油分品质优异.棕榈酸、亚油酸的含量较高.亚麻酸、芥酸的含量较低.是油菜优质育种的优良种源。3.诸葛菜还可以作为蔬菜、观赏植物的种源和体细胞遗传学的实验材料。     

茶树新品种——梦茗

"梦茗"系从安徽省岳西县来榜镇优良地方群体种中采用单株选育法育成的适制绿茶新品种。经安徽省内品比、推广示范和全国区试,发现"梦茗"物候期与福鼎大白茶相当,属早生种。品质优异,全国区试3个点感官审评总分均高于对照;内含物含量高,氨基酸含量4.9%、茶多酚总量26.9%、水浸出物总量40%。产量高,品比试验高于福鼎大白茶26.45%,全国区试产量与对照相当。抗旱能力强,抗寒能力与对照相当。     

优质杂交早稻金优974的选育及其利用

金优９７４是湖南省衡阳市农科所以金２３Ａ为母本,Ｔｏ９７４为父本选配出的籼型优质杂交稻组合。该组合具有生育期短,丰产稳产,米质优、抗性强和制种产量高等特点,１９９２年２月通过湖南省农作物品种审定。     

小粒型优质野败不育系绮A的选育与应用

绮A是广西农科院水稻所育成的极小粒型野败不育系，千粒重仅14g，具有败育彻底，异交习性良好，可恢性，配合力高，外观品质好等特点。2001年10月通过广西区科技厅成果鉴定。所配组合表现米质优、优势强、产量高、熟期偏中迟。绮优1025、绮优99和绮优293等优质早灿组合的配组成功，有望解决华南杂交早灿稻米质差的问题。     

早生茶树新品种黔茶8号

黔茶8号是以在昆明中叶群体种茶园中发现的优异单株为育种材料,经系统选种、无性繁殖育成的绿茶新品种。多年的品系比较和区域试验表明,该品种春季发芽早,比福鼎大白茶提早5～8 d,芽叶肥壮,分枝密,产量与福鼎大白茶相当;内含成分丰富,春季一芽二叶蒸青样含水浸出物43.8%,茶多酚16.7%,咖啡碱3.4%,游离氨基酸4.9%,酚氨比较福鼎大白茶低;适制显毫类绿茶,制茶品质优良,香气高有花香。抗性较强,适合在贵州、湖北、广东、广西及相似地区栽培种植。     

Survival ofCorynebacterium sepedonicum in potato stems and on surfaces held at freezing and above-freezing temperatures

The survival ofCorynebacterium sepedonicum, the bacterial ring rot pathogen, in infected potato stems and on burlap surfaces held at various freezing and above-freezing temperatures was investigated by root-inoculating potato stem cuttings with aqueous suspensions prepared from these materials. Infectious bacteria were recovered from dried Russet Burbank stems held for 44 mo in an unheated machine shed and from dried Warba stems held for 55 mo. Inoculum from dried stems of all cultivars held for 63 mo did not incite symptoms; however, inoculum from Russet Burbank stems incited symptomless infection in 10% of the inoculated plants. This 63-mo survival period exceeds a 26-mo survival period previously reported. Ring rot bacteria survived and remained infectious for at least 18 mo on burlap surfaces subjected to temperatures of ?40° to ?5°C, alternating temperatures of -5° to 5°C, or a constant temperature of 5°C. Inoculum from burlap stored at the lower temperatures caused the most severe symptoms. These results stress the need for keeping crop debris away from potato operations and for using proper decontamination procedures to maintain potato seed stocks free of ring rot.     

小麦新品种豫农516主要特性及利用前景分析

为了促进小麦新品种豫农516的推广应用,利用2016~2018年河南省小麦良种区域试验和生产试验资料对其主要特性进行分析。结果表明:豫农516丰产性突出,稳产性好,适应性广;区试平均产量比对照增产11.80%,生产试验比对照增产6.0%;产量变异系数均值10.67%,适应度均值88.15%,主要品质达优质中筋小麦标准。该品种适合河南及周边省份相近生态区中晚茬地种植。     

Denali: A high dry matter potato with wide adaptation

Denali is a smooth, white-skinned potato bred and selected for high dry matter content early in tuber development at the Matanuska Research Farm. Its flavor is distinctive and pleasant as a baked potato. Chip quality has been excellent directly following harvest or from warm storage. In Michigan trials, Denali consistently has had the highest specific gravity and has been one of the highest yielders of approximately 20 varieties tested each year. Denali’s foliage has shown frost tolerance and heat resistance in tests conducted in Nebraska.     

优质稻新品种两优842在龙海种植表现与高产栽培技术

两优842系福建旺穗种业有限公司用优质不育系86315S与旺恢842配组而成的晚籼两系杂交稻品种,2011年通过福建省品种审定。在龙海市早、晚季展示示范中,表现出米质优、熟期适中、株型适中、株叶形态好、穗大粒多、丰产性好等特点。主要介绍其在龙海市种植的特征特性与高产栽培技术要点。     

籼型优质不育系德山A的选育及基本特性

德山A是一个新育成的米质优良、综合性状较理想的野败型中熟偏迟早籼不育系，2000年3月通过湖南省农作物品种审委会审定。所配组合具有优质、高产、农艺性状较好的特点，可在生产上推广应用。     

野败籼型三系不育系钱江1号A的选育

钱江1号A属野败籼型早熟不育系.该不育系农艺性状好,株型理想;柱头外露率高达72.54%,其中双外露率占57.50%;不育性稳定,花粉败育率达100%;异交结实率较高,繁种田结实率为48.8%,繁制种产量高;米质较优,垩白度、透明度、胶稠度和直链淀粉含量4项指标明显优于协青早A;稻瘟病抗性(中抗)优于协青早A;配合力较好,可恢复力强;于2004年1月通过浙江省成果鉴定.     

大豆新品种吉育76选育及栽培要点

吉育76大豆新品种是吉林省农业科学院大豆研究中心选育的高产早熟大豆新品种,2005年1月通过吉林省农作物品种审定委员会审定。具有高产、抗病、广适等特点,不但质优,而且在吉林省早熟组两年区域试验中平均产量居第一位,比对照品种增产11．7％。