青海省海北州麝香资源及其开发利用和发展前景

麝香是由鹿科动物马麝和林麝成熟雄体香囊中的分泌物干燥而成,为我国特产的名贵药材和世界四大名香之一。介绍了马麝和林麝的动物形态特征以及麝香的采集加工方法、商品质量与鉴别方法及产销情况,并展望了麝香的发展前景。     

从生育行为看农村妇女的家庭地位——基于江西X村的研究

通过对农村妇女生育行为及其家庭地位的个案访谈，发现从农村妇女的生育行为，主要是生育孩子的数量和性别，已经无法准确判断她们的家庭地位。即生育行为与妇女的家庭地位之间的联系正在弱化甚至消失，取而代之的是包括妇女的性别意识、经济独立性、知识水平等多方面因素。因此，提高农村妇女家庭地位的途径也变得多样化，其中，增强农村女性自身素质显得尤为重要。     

Developmental temperature stress and parental identity shape offspring burst swimming performance in sockeye salmon (Oncorhynchus nerka)

Abstract – The persistent effects of embryonic temperature stress and individual parentage on fry swimming performance were examined in a cross‐fertilisation experiment using sockeye salmon (Oncorhynchus nerka). A fixed‐velocity test of burst swimming was used to assess the endurance capacity and behavioural performance of individual fry from 10 offspring families incubated at 12, 14 or 16 °C to hatch and then reared through yolk absorption and exogenous feeding stages in a common posthatch environment (average 6.9 °C). Fry burst swim time (BST) was influenced by an interaction between incubation temperature and family identity. Average BST was longer for fry from the 12 °C prehatch treatment compared to 14 and 16 °C, although differences were largely attributable to temperature effects on average fry size. Behavioural observations revealed that fish incubated at 16 °C performed more poorly, having a larger proportion of individuals that required stimulation to swim, fatigued more frequently or were classified as ‘nonswimmers’. Within all three incubation temperature treatments, mean BST varied significantly among offspring families, independent of fry mass and length. An interesting relationship was observed within the 16 °C treatment, whereby families with higher survivorship were characterised with lower mean BSTs. Collectively, these findings demonstrate that exposure to high temperatures in early sockeye salmon development can result in persistent, parentally mediated effects on fry performance. As such, these results provide important insight into how elevated temperature events during egg incubation may affect early life history selection processes and survival in stages beyond when the stressor is experienced.     

杉木优良家系主要生长性状遗传距离聚类分析

对１１２个杉木优良家系的主要生长性状，采用主成分遗传距离法进行综合评价，从中选出４０个高产优良家系，平均材积遗传增益达７１．５％，能显著提高增益水平。     

家庭蚕桑适度规模经营的实践探索

推地蚕桑适度规模经营是提高蚕桑生产经济效益的一项主要途径。海宁市对蚕桑适度规模经营进行了试点实践和调查，并就提出该课题的依据，可能性，典型蚕户的经营分析，适度规模经营的指标，优缺点进行了有益探讨。     

杉木外地优良家系引种及选择研究

从南京林业大学引进22个杉木(Cunninghamia lanceolata)第二代种子园优良家系,对其10年试验结果进行分析,引种家系胸径生长与对照存在显著的遗传差异,大部分家系生长量不如贵州黎平的(对照ck2)高;各家系生长量达显著和极显著水平,以生产力指数、稳定性参数和材积生长量综合评判,将参试家系分成优良(Ⅰ)、中等(Ⅱ)、较差(Ⅲ)3类,并从中选出3个可以在我省利用和推广的优良家系。     

对高校图书馆安置引进人才家属馆员的思考

通过对浙师大等10余所高校图书馆安置引进人才家属情况的调研分析,从精神面貌、心理状态、专业素质角度,论述了对其进行专业素质教育的重要意义;从文化背景、工作经验、自我完善等方面探讨了专业素质教育的可行性,并提出专业素质教育的具体措施。     

粗皮桉种源/家系的遗传变异

粗皮桉是生产锯材的潜力树种之一。对其进行了种源/家系早期选择试验，结果表明：2年生试验林的平均树高和胸径分别为7.69m和7.08cm，保存率为75.08%，且各指标在种源和家系水平上都存在极显著差异；树高的遗传力随树龄的增加而增大，2年生时树高和胸径的遗传力分别为26.3%和22.8%，用指数选择法选出17861等8个种批（平均树高7.82-7.93m，平均胸径6.99-7.38cm)和211等15个家系（平均树高7.80-9.43m，平均胸径8.00-8.69cm)为推荐的潜力优良材料。     

河北天牛名录初志

本文报道了在河北省境内为害林木、果树的天牛科昆虫5亚科64属99种,并对其已知分布地点和寄主植物作了介绍。