菜用甘薯新品种薯绿1号的选育

薯绿1号(原名徐菜薯1号)是以台农71为母本,以广薯菜2号为父本,通过定向有性杂交选育而成的菜用甘薯专用新品种。株型半直立,分枝多,叶片心形,顶叶黄绿色,叶基色和茎色均为绿色。薯块纺锤形,白皮白肉。茎尖无茸毛,烫后颜色翠绿至绿色,无苦涩味,微甜,有滑腻感,食味好。高抗茎线虫病,抗蔓割病。在国家区域试验3个月时间内每667m2产量1800kg左右,如在保护地条件下可周年生产,每667m2产量在5000kg以上。适合江苏、山东、河南、浙江、四川、广东、福建、海南等适宜地区作叶菜种植。     

水果萝卜新品种京脆1 号的选育

京脆1 号是由两个自交不亲和系05132 和05177 配制而成的鲜食水果型萝卜一代杂种。生长期75～80 d（天），叶
片近板叶型，深绿色，半直立株型。肉质根椭圆形，尾根细，茎盘小。根长13 cm，横径12 cm，平均单根质量1.2 kg，每
667 m² 产量5 000～6 000 kg。肉质根3/4 露出地面，出土部分浅绿色，入土部分白色，肉色浅绿，肉质甜脆，VC 含量 380
mg·kg^-1（FW），硫苷含量318.8 μmol·kg^-1（FW），适合生食。田间对病毒病和软腐病的抗性强于对照满堂红。适合北京、
天津、河北、山东等地种植。     

3个四季草莓品种在川西高原栽培研究

以圣安德瑞斯、波特拉和蒙特瑞3种四季草莓为材料,在茂县进行夏季栽培比较试验,通过各品种的农艺性状及果实内、外在品质等指标进行分析对比以及灰色关联度分析,结果表明:圣安德瑞斯的长势最好；圣安德瑞斯的果实虽然大而重但糖酸比较低,口感较差,风味偏酸,蒙特瑞的固酸比最高,风味最好； 3个品种加权关联度排名依次为蒙特瑞、圣安德瑞斯、波特拉。结论：在茂县及相应高原区域栽培条件下,蒙特瑞的综合适应性最佳。     

山西省襄垣县有机旱作农业发展研究

襄垣县是山西省有机旱作试点县,根据其自然条件,通过总结该县有机旱作发展现状、制约因素及潜力分析,提出适宜的对策措施,为今后有机旱农业的发展提供一定的参考。     

如何制作家庭组合盆栽

组合盆栽是园艺之花卉栽培、插花技艺、盆景制作的完美结合,它主要是通过艺术配置的手法,将几种不同种类的观赏植物组合设计同植在一个容器内,组合盆栽比插花观赏性强、生命力强,比盆景制作周期短、制作难度小,更易出成品,适合家庭用,适合推广普及。     

环境对西府海棠锈病发生的影响与病害防治技术

西府海棠锈病是危害西府海棠的最重要病害,造成叶片枯黄、早落,影响次年的开花与结果。本研究,分析了近年来病害严重发生的环境影响因素,并提出防治技术方案。     

“虚拟仿真”背景下畜牧兽医研究生实践教学改革探索研究

研究生教育位于国民教育体系的顶端，是国家高等教育发展水平的重要标志。为培养 既具有责任担当精神，又具有宽厚的专业知识和创新能力，还具有较高的英语水平和较强的计算机网络应用能力的高层次畜牧兽医人才，本研究对我校畜牧兽医专业研究生的培养现状进行了分析总结，提出了基于“虚拟仿真”背景下人才培养的新模式，总结了虚拟仿真研究生科研平台建设的优势和使用效果，为其它专业研究生的培养提出参考。     

Association analysis for detecting significant single nucleotide polymorphisms for phosphorus-deficiency tolerance at the seedling stage in soybean [Glycine max (L) Merr.]

Tolerance to low-phosphorus soil is a desirable trait in soybean cultivars. Previous quantitative trait locus (QTL) studies for phosphorus-deficiency tolerance were mainly derived from bi-parental segregating populations and few reports from natural population. The objective of this study was to detect QTLs that regulate phosphorus-deficiency tolerance in soybean using association mapping approach. Phosphorus-deficiency tolerance was evaluated according to five traits (plant shoot height, shoot dry weight, phosphorus concentration, phosphorus acquisition efficiency and use efficiency) comprising a conditional phenotype at the seedling stage. Association mapping of the conditional phenotype detected 19 SNPs including 13 SNPs that were significantly associated with the five traits across two years. A novel cluster of SNPs, including three SNPs that consistently showed significant effects over two years, that associated with more than one trait was detected on chromosome 3. All favorable alleles, which were determined based on the mean of conditional phenotypic values of each trait over the two years, could be pyramided into one cultivar through parental cross combination. The best three cross combinations were predicted with the aim of simultaneously improving phosphorus acquisition efficiency and use efficiency. These results will provide a thorough understanding of the genetic basis of phosphorus deficiency tolerance in soybean.     

酸奶营养品质提升的加工工艺研究

牛奶中含有丰富的活性营养物质,包括乳铁蛋白、免疫球蛋白、乳过氧化物酶、α-乳白蛋白、β-乳球蛋白等。传统工艺生产的酸奶经过高温杀菌,活性营养物质几乎完全损失。为了避免这一情况,本文推出一种新的酸奶生产工艺,生产出的酸奶可保留大部分活性营养物质。首先将牛奶的乳脂进行分离,乳脂部分进行125 ℃、5 s杀菌,脱脂牛奶部分进行75 ℃、15 s杀菌,将两部分料液混合后加入菌种发酵至酸度75~85°T,破乳后冷却后熟8 h以上。经测定,新工艺酸奶中α-乳白蛋白、β-乳球蛋白、乳铁蛋白、免疫球蛋白、乳过氧化物酶含量分别为966 mg/L、1 963 mg/L、23.4 mg/L、102 mg/L、1 025 U/L,远高于传统工艺酸奶的68 mg/L、200 mg/L、0.7 mg/L、14 mg/L、0 U/L。通过对比新工艺与传统工艺酸奶保质期内的活菌数、黏度、酸度和口感,并无显著差异。     

Effects of baicalin on glial fibrillary acidic protein and nuclear factor-κB expression in juvenile rat hippocampus after status convulsion

AIM: To study the effects of baicalin (BC) on glial fibrillary acidic protein (GFAP) and nuclear factor-κB (NF-κB) expression and neuronal apoptosis in juvenile rat hippocampus after status convulsion (SC). METHODS: One hundred and ninety five juvenile male Sprague-Dawley rats were randomly divided into 3 groups: normal saline pretreatment group (NS group), SC group and SC with BC pretreatment group (BC group). Each of these 3 groups would be subdivided into 5 subgroups sacrificed at 4 h, 12 h, 24 h, 48 h and 72 h after SC. The rat SC model was prepared by lithium-pilocarpine chemical method. The protein expression of GFAP and NF-κB was detected by the method of immunohistochemistry. The mRNA expression of GFAP was detected by RT-PCR. The neuronal apoptosis was observed by TdT-mediated dUTP nick end labeling (TUNEL). RESULTS: Compared with NS group, the GFAP positive cells was increased in SC group (P<0.05). Compared with SC group, the expression of GFAP was significantly reduced in BC group (P<0.05). Compared with NS group, the NF-κB positive cells was increased in SC group (P<0.05). Compared with SC group, the expression of NF-κB was significantly reduced in BC group. RT-PCR showed that the expression trend of GFAP mRNA was similar to that of the protein. Compared with NS group, the TUNEL positive cells in the hippocampus CA1 area in SC group increased significantly 12 h after SC (P<0.01), and reached a peak at 48 h. After the intervention with BC, the TUNEL positive cells decreased significantly between 12~48 h after SC (P<0.05 or P<0.01), but the number of TUNEL positive cells remained significantly greater than that in NS group (P<0.05). CONCLUSION: The expression of GFAP and NF-κB in the hippocampus increased after SC in rats. Baicalin decreases the expression of GFAP and NF-κB in hippocampus of rats with pilocarpine-induced seizures, and reduces the number of neuronal apoptosis, suggesting that baicalin may protect against the brain damage caused by status convulsion.