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山地农业的春季冻害和倒春寒防御 总被引:1,自引:0,他引:1
利用气象中尺度自动站资料和灾情信息,将丽水市农业生产分为平原地区、低海拔山区、中高海拔山区3种类型,结合山地特点,对2010年两次倒春寒的天气特点进行对比分析。结果表明:(1)倒春寒对农业危害非常大,两次倒春寒的受灾机制和受灾强度不同,不同海拔地区的气象要素和受灾情况的差异性也很大,3月春季低温对平原地区的影响与4月倒春寒天气过程对中高海拔山区的影响基本相当,且明显弱于其低海拔、中高海拔地区的影响;(2)倒春寒天气发生前开展有针对性服务和预防准备以及开展规模化的大棚种植等措施,对提高山地农业倒春寒及春季低温冰冻天气的防御能力意义重大。 相似文献
83.
Ethylene and Spermidine in Wheat Grains in Relation to Starch Content and Granule Size Distribution Under Water Deficit
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YANG Wei-bing LI Yong YIN Yan-ping JIANG Wen-wen PENG Dian-liang CUI Zheng-yong YANG Dong-qing WANG Zhen-lin 《农业科学学报》2014,13(10):2141-2153
Two wheat cultivars (Triticum aestivum L.) were used to evaluate the effects ofpost-anthesis severe water deficit (SD) on starch content and granule size distribution and their relations with ethylene and spermidine (Spd). Comparison to the well-watered (WW) treatment, SD led to lower Spd and higher 1-aminocylopropane-l-carboxylic acid (ACC) concentrations and ethylene evolution rate (EER) in grains at the critical stage of forming starch granules. Application of Spd or aminoethoxyvinylglycine (AVG) significantly reduced ACC concentration and EER and increased Spd concentration, while ethephon or methylglyoxal-bis (MGBG) had an opposite impact. The volume and surface area distribution of starch granules showed a bimodal curve, while the number distribution exhibited a unimodal curve. SD caused a marked drop in grain weight, grain number and starch content, also led to a significant reduction in the proportion (both by volume and by surface area) of B-type starch granules (〈10 Ixm), with an increase in those of A-type starch granules (〉10 ~tm). Application of Spd or AVG increased the proportion (both by volume and by surface area) of B-type starch granules under SD. Correlation analysis suggested that ethylene and Spd showed an antagonism relation in the formation of B-type granules. These results suggested that it would be good for the formation of B-type starch granules to have the physiological traits of higher Spd and lower ACC concentrations and ethylene emission under SD. 相似文献
84.
目的 评价分析长沙重性精神疾病社区药物治疗的安全性。方法 以社区药物治疗的365例重性精神病患者为对象,对3次锥体外系副反应量表(rating scale for extratyramidal side effects,RSESE)、异常不自主运动量表(abnomal involuntary movement scale,AIMS)、精神性不良反应量表(udvalg for kliniske under-sogelser,UKU)及实验室、心电图检查统计分析以探讨药物治疗安全性。结果 3次RSESE评分值比较无统计学意义;第1、3次AIMS评分值比较有统计学意义(P<0.05);第1次与第2、3次UKU评分值比较有统计学意义(P<0.05);第1、3次血常规间、第1次与第2或3次血糖间、第1或2次与第3次血脂间、第1、2次肾功能间比较有统计学意义(P<0.05);3次肝功能、激素、心电图比较无统计学意义。锥体外系副反应以震颤、肘强直、固定姿态多见;异常不自主运动副反应以上肢面部、唇口周部多见;精神性不良反应以无力、思睡、注意力下降多见。结论 重性精神疾病社区药物治疗不良反应评估稳定,安全性较高,对药物锥体外系副反应及生化、血象、心电图异常情况,须监测、复诊,以减少不良反应的发生。 相似文献
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本文依据公安刑侦检验工作的特点,从几个不同方面,论述了公安刑侦检验中人性化管理、办案的重要性。 相似文献
88.
Cristina Mihaela Ghiciuc Andrei Gheorghe Vicovan Celina Silvia Stafie Sabina Antonela Antoniu Paraschiva Postolache 《Marine drugs》2021,19(11)
One of the challenges to the management of severe asthma is the poor therapeutic response to treatment with glucocorticosteroids. Compounds derived from marine sources have received increasing interest in recent years due to their prominent biologically active properties for biomedical applications, as well as their sustainability and safety for drug development. Based on the pathobiological features associated with glucocorticoid resistance in severe asthma, many studies have already described many glucocorticoid resistance mechanisms as potential therapeutic targets. On the other hand, in the last decade, many studies described the potentially anti-inflammatory effects of marine-derived biologically active compounds. Analyzing the underlying anti-inflammatory mechanisms of action for these marine-derived biologically active compounds, we observed some of the targeted pathogenic molecular mechanisms similar to those described in glucocorticoid (GC) resistant asthma. This article gathers the marine-derived compounds targeting pathogenic molecular mechanism involved in GC resistant asthma and provides a basis for the development of effective marine-derived drugs. 相似文献
89.
分析探讨母畜产后病的病因病机,运用中兽医学“望、闻、问、切”四诊之法和辩证论治,整体观念作为理论指导,对母畜产后诸病症以补虚、散瘀为基本治疗原则,临床以中草药治疗为主要手段,处方用药随症状灵活加减变通,疗效确切,无毒副作用,安全可靠,经济实惠,验证了中兽医治疗母畜产后病的实用性和可靠性。 相似文献
90.
Kateřina Matějíčková Ľubomír Pojezdal Dagmar Pokorová Stanislava Reschová Veronika Piačková Miroslava Palíková Tomáš Veselý Ivana Papežíková 《Journal of fish diseases》2020,43(9):971-978
This work describes the first confirmed cases of carp oedema virus disease (CEVD) in Slovakia and the Czech Republic and the phylogenetic analysis of Czech and Slovak carp oedema virus (CEV) isolates. Four cases of disease outbreak in the Czech Republic are described, the oldest dating from mid-May 2013 and one case from Slovakia dating from May 2019. In all cases, virus presence was confirmed using nested PCR. PCR products were sequenced and compared with 357-bp nucleotide sequences encoding the CEV P4a protein in GenBank. In four cases of disease outbreak (three common carp breeding facilities and one koi garden pond), CEV detected belonged to genogroup I. In one case (koi garden pond), fish were confirmed as infected with CEV from genogroup II. This work complements data on CEV occurrence in European countries and contributes to a better understanding of the pathways leading to transmission of the virus throughout Europe. 相似文献