优质水稻三系不育系金泰A的选育

金泰A是福建农林大学作物科学学院选用高代优质保持系材料香混-9与优质三系保持系宜香1B杂交,F4代选单株与金山A-1测交并连续多代回交转育而成的野败籼型优质三系不育系。该不育系具有育性稳定、米质优、株叶形态好、柱头外露率高、可恢性好、杂种优势较强等特点,于2015年4月通过福建省品种审定委员会审定。     

优质抗稻瘟病水稻三系不育系M20A的选育

以改良优质三系不育系金山A-1的稻瘟病抗性和配合力作为育种目标,利用携有抗稻瘟病基因Pi-9的金23B抗病近等基因系(04AMA-88)与携有抗白叶枯病基因Xa21的金山B-1抗病近等基因系(04AMA-49)杂交,经分子标记辅助选择,在杂交F4代中选择携带Pi-9的优良单株与金23A测交并转育不育系,育成抗稻瘟病、米质优、配合力好、异交率高的新不育系M20A。该不育系及其配制的杂交早稻新组合M优2155(M20A/明恢2155)于2014年5月通过福建省品种审定委员会审定。     

水稻优质三系不育系金岩A的选育

金岩A是福建农林大学作物科学学院用优质保持系金山B-2与D62B进行杂交,F5代选单株与新香A测交并连续多代回交育成的野败型优质三系籼稻不育系。该不育系具有不育性稳定、米质优、配合力高、异交结实好、杂交种子发芽率高等特点,于2017年通过福建省农作物品种审定委员会审定。     

弱感光型杂交水稻新组合金山优70

金山优70是福建农林大学用自育优质三系不育系金山A-1与福建省三明市农科所育成的恢复系明恢70配组育成的弱感光型三系杂交稻新组合,2012年3月通过福建省品种审定。     

无垩白、香型优质不育系金山A-1的选育和利用初报

选育优质不育系是提高杂交稻米品质的关键。本研究以万利香与矮B杂文，采用系谱法选育出优质、柱头外露率高、具香味的优良保持系，并以此与珍汕97A连续多代成对回交，育成香型优质不育系金山A—1，其不育性稳定、米质好(垩白率0％，垩白度0％)、配合力强、柱头外露率高、异交特性好。用金山A—1与早R—2、早R—9、早R—11、晚R—9和晚R—13等配制成的优质杂交早、晚稻等组合兼具高产、优质特性，具有较广阔的推广应用前景。     

福建农林大学水稻优质不育系选育取得突破性进展

福建农林大学利用优质保持系中间材料矮B(花 1B D2 97B后代选育而成 )与广东优质香稻万利香杂交 ,系统选育出金山B - 1,与珍汕 97A测交并通过连续多代回交育成优质的野败型细胞质雄性不育系金山A - 1。2 0 0 3年 9月 2 7日 ,福建省科技厅组织有关专家对无垩白、香型优质水稻不育系金山A - 1的选育进行技术鉴定 ,鉴定委员会认真听取了课题组的研究工作汇报 ,审阅了相关的技术资料 ,并进行了现场考察 ,取样检查 ,一致通过了对该不育系的技术鉴定 ,认为该不育系的优质选育达国内领先水平。金山A - 1具有以下主要特点。(1)金山A - 1表现田间…     

优质水稻光温敏核不育系272S的选育

采用金山S -2/金山1B∥金山1B配组杂交,通过人工气候箱、早季与高海拔低温等自然生态压力进行育性鉴定,育成不育起点温度低、不育性稳定的两系不育系272S.该不育系稳定不育期长,米质优,配合力好,于2010年8月通过福建省教育厅科技评审.     

优质早籼三系不育系贺50A选育

贺50A是以金23A为母本，中9B／161—5B／金23B的F4代单株为父本，经多代择优回交与选择育成的早籼型三系不育系。该不育系具有不育性稳定，株叶形态好，生育期适中，开花习性好，柱头外露率和异交结实率高，米质较优，配合力强等特点。介绍了贺50A的繁殖制种技术要点。     

优质籼型三系不育系盛泰A的选育

盛泰A是以岳4B为母本与偏保型优质常规稻品种五岭香丝杂交制保,再与岳4B回交,然后与岳4A测交并边续回交转育而成的优质籼型三系不育系。该不育系具有农艺性状优良、可恢性好、配合力强、开花习性好、抗性较好、米质优(达国标优质稻谷2级标准)等特点,应用前景广阔,2009年通过湖南省鉴定。     

优质抗病水稻三系不育系神农4A的选育

神农4A是重庆市农业科学院与重庆中一种业有限公司用自育不育系Q2B与江西优质抗稻瘟病香稻地方资源杂交,从F3代中选择优良单株与野败型胞质不育系Q2A杂交和回交育成的籼型三系不育系。该不育系具有米质优、异交习性好、抗稻瘟病等特点,所配组合分蘖力强、耐肥抗倒、稳产性好,2018年8月通过重庆市农作物品种审定委员会技术鉴定。     

Starch granules size distribution in superior and inferior grains of wheat is related to enzyme activities and their gene expressions during grain filling

Mature wheat endosperm contains A-, B-, C-type starch granules, and each class has unique physiochemical properties which determine the quality of starch. The dynamics of the starch granule size distribution, activities of starch synthases and expression of starch synthase encoding genes were studied in superior and inferior grains during grain filling. Compared with inferior grains, superior grains showed higher grain weight, contents of starch, amylose and amylopectin. The formation of A-, B-, C-type starch granules initiated at 4, 8, 20 DAF, respectively, and was well consistent with the temporally change patterns of starch synthase activities and relative gene expression levels. For instance, activities of soluble and granule-bound starch synthases (designated SSS and GBSS) peaked at 20 and 24 DAF. Genes encoding isoforms of starch synthases expressed at different grain filling periods. In addition, SS I was generally expressed over the grain filling stage; the SS II and SS III were expressed over the early and mid grain filling stage, and the GBSS I was expressed during the mid to late grain filling stage. In addition, the time-course changes in activities of starch synthases and expression of starch synthase encoding genes explained well the dynamics of the starch granule size distribution.     

甘薯新品种龙薯24号特征特性及栽培技术要点

龙薯24号是福建省龙岩市农科所育成的高淀粉甘薯新品种，具有淀粉产量高，食味好，中抗蔓割病的优点。参加福建省区试淀粉产量472.23kg/667m^2，比对照金山57增产8.96%，2013年通过福建省农作物品种审定。介绍了该品种特征特性及栽培技术要点。     

优质香稻不育系君香A的选育

君香A是以岳4B×五岭香丝苗的F_3单株与岳4B回交1次,在其自交F_3代中选株与金23A测交并连续回交后转育而成的香稻三系不育系.该不育系具有农艺性状优良、香味浓郁、可恢性好、配合力强、繁殖制种产量高、米质优(部颁1等优质米)等特点,2008年3月通过湖南省品种审定.     

小麦雄性不育系AL18A育性恢复基因的QTL定位

为加快AL型杂交小麦的发展,以不育系AL18A、恢复系99AR144-1及二者杂交F2代群体为材料,选用SSR标记和分离群体分组分析法进行育性恢复基因的QTL定位。结果表明,育性恢复由主效和微效基因共同控制,采用复合区间作图法分析,在1B染色体上检测到了1个主效恢复基因QTLqRf-1B-1,在5AL染色体上检测到了1个微效QTLqRf-5A-1。qRf-1B-1位于SSR标记Xbarc8与Xgwm413之间,与两标记的遗传距离分别为0.85cM和2.00cM,LOD值为14.06,加性效应为18.87,可解释22.43%的表型变异;qRf-5A-1位于SSR标记Xgwm595与Xgwm410之间,与两标记的遗传距离分别为10.00cM和0.10cM,LOD值为3.18,加性效应为12.32,可解释5.44%的表型变异。     

水稻优质不育系沁香A的选育

沁香A是岳阳市农科所以岳4B为母本与郴优早1号杂交,F_3代选单株与岳4B回交,后代再与金23A测交并连续回交转育而成的水稻不育系,败育彻底,育性稳定,开花习性好,异交结实率高,易于繁殖制种,米质优良,米粒具爆米花香味,可恢复性好,配合力高,于2008年2月通过湖南省品种审定.     

新质源优质不育系岳4A的选育与应用

岳４Ａ是一个新胞质籼型优质三系不育系,花粉不育度和不育株率均为１００％,米质优,株叶型好,异交习性优良,配合力强,杂种一代米质优、丰产性好,利用前景广阔     

两系杂交水稻金两优289优质高产栽培技术

金两优289系福建农林大学作物科学学院用自育核不育系金山S-2与早恢89配组育成的优质两系杂交稻新组合,2006年通过福建省农作物品种委员会审定,2008年通过广西区品种认定。在福建南部和广西桂中北作早稻种植,表现优质高产、熟期适中、抗性较好、适应性广等优点。本文提出了该组合的优质高产栽培技术。     

Biocontrol of Rhizoctonia solani and Sclerotium rolfsii on tomato by delivering antagonistic bacteria through a drip irrigation system

In a 2-year assessment carried out on tomato crops of Central and Southern Italy, a high incidence of Rhizoctonia solani and Sclerotium rolfsii was found. These fungal pathogens attack horticultural crops and are responsible for severe crown and stem rot. Because of technical, economical and environmental issues their chemical control is an arduous task. To find alternative and eco-compatible control methods, the effectiveness of two new antagonistic bacterial isolates (Burkholderia cepacia, T1A-2B, and Pseudomonas sp., T4B-2A), previously selected from suppressive organic amendments, were tested on tomato plants grown under both growth chamber and field conditions. The potential antagonists were compared with two commercial biofungicides, based on Bacillus subtilis (BSF4) and Trichoderma asperellum (TV1), and four synthetic fungicides (tolclofos-methyl, azoxystrobin, fosetyl-Al and fosetyl-Al + propamocarb). In 2-year field experiments carried out on tomato plants, the biocontrol bacteria as well as the other treatments were applied to the soil, proximal to the plant crowns and main roots, by means of an effective and specific system of drip irrigation. In all the experiments the novel selected biocontrol bacteria significantly reduced both incidence and severity of the diseases caused by S. rolfsii or R. solani, with results demonstrating effectiveness equal to TV1, better than BSF4 and comparable with the synthetic fungicides, except for tolclofos-methyl which was the most effective treatment. In field experiments, carried out for two consecutive years, isolate T1A-2B reduced up to 58.33% and up to 63.8% the severity of the diseases caused by S. rolfsii and R. solani respectively; whereas isolate T4B-2A gave reduction of S. rolfsii and R. solani diseases severity up to 73.2% and up to 62.7%, respectively.     

“紫娟”晒青绿茶色素的HPLC-ESI-MS分离鉴定及其稳定性研究

研究"紫娟"晒青绿茶主要呈色成分及其稳定性。采用酸性甲醇-水和水分别提取"紫娟"晒青绿茶色素,利用HPLC-ESI-MS/MS方法对其主要色素进行了分离鉴定。结果显示,"紫娟"晒青绿茶含有14种花色素苷、24种黄酮、8种酚类以及3种生物碱。主要的花色苷类物质为天竺葵素-3-葡萄糖苷或天竺葵素-3-半乳糖苷、天竺葵素-3-(6-香豆酰基)-葡萄糖苷、飞燕草素-3-葡萄糖苷、飞燕草素-3-芸香糖苷、飞燕草素-3-O-(6-香豆酰基)-葡萄糖苷、Prodelphinidin B-2(or 4)3′-O-gallate、Procyanidin B-2(or 4)3′-O-gallate、Petunidin-3-glc-4-vinylphenol和Malvidin-3-glc-4-vinylepicatechin等。酸性甲醇-水提取的"紫娟"晒青绿茶红色素水溶性好,颜色随pH值变化而变化。酸性条件下该色素对光、低温有很好的稳定性,耐氧化性与耐还原性较强。Cu2+、Fe3+使色素稳定性变差。明确了"紫娟"晒青绿茶呈现紫色的主要物质基础。