设置创新创业教育专业——破解创新创业教育改革困境的范式转换

培养创新人才是不同发展阶段、不同形态社会对教育的基本诉求。通过对我国部属农林高校创新创业教育改革实施方案文本分析可知,在开展创新创业教育改革发展目标方面高度认同,在组织机构设置方面高度重视,在选择举措方面高度完备。同时存在目标定位无特色又高度雷同,相关部门间协同育人机制缺失以及对发力点缺乏明晰的判断等问题。推进范式转换,设置创新创业教育专业、建立创新创业教育监督执行机构成为当下破解创新创业教育改革困境的重要选择。     

ZL刨花板防水剂的研制

采用廉价的硫酸盐皂作为乳化剂的原料，以石蜡作为防水材料，经预处理，加热，调ｐＨ，分散和冷却等过程，研制出浅黄色膏状的ＺＬ刨花板防水剂。经制板试验证明，该防水剂防水效果良好，施加方便，便于运输和贮存。     

三系杂交水稻"丰田优089"高产制种技术

"丰田优089"是利用不育"丰田1A"与"桂恢089"配组育成的感光型优质杂交稻品种,适合在华南南部做晚稻种植.文章对其选育经过、特征特性、产量表现和制种技术要点进行总结,重点阐明基地选择、确定亲本播差期、培育多蘖壮秧、田间科学管理、花期预测与调节以及巧施"九二○"等高产制种技术,为三系杂交水稻"丰田优089"大面积制种提供科学技术指导.     

Bayesian estimation in maternally ancestral animal models for weaning weight of beef cattle

The Bayesian approach was implemented for fitting several maternally ancestral models for weaning weight data of Angus calves. The goal was to evaluate to what extent genetic evaluation models with additive grand maternal effects (G), or with an ancestrally structured covariance matrix for maternal environmental effects (E), or with a sire × year interaction (ISY), or combinations thereof (GE, GSY, ESY, GESY), redistribute the additive variability and reduce the negative magnitude of the additive correlation between direct and maternal effects (r(AoAm)), when compared with the regular maternal animal model (I). All animals with records had known dams and maternal granddams. The sampling scheme induced low autocorrelations among all variables and tended to converge quickly. The signs of the estimates of r(AoAm) were consistently negative for all models fitted. The magnitudes of the estimates of r(AoAm) from models E, G, GE, ESY, and GESY were almost one-third of those from models I and ISY. Inclusion of the sire × year interaction had some effect in reducing the negative magnitude of r(AoAm), but also reduced the size of the estimates of direct (h(0)(2)) and maternal (h(m)(2)) heritabilities. In comparison, models E or G reduced the negative magnitude of r(AoAm) by 0.50 units and produced more favorable estimates of H(0)(2) and h(m)(2) than models I and ISY. The estimate of h(0)(2) from G was similar to the one from I; however, the estimated h(m)(2) was 0.04 units greater, whereas the estimate of r(AoAm) was much less negative (-0.21 vs. -0.71) than the respective estimates from I. The environmental correlation between the weaning weights of dams and their daughters (λ) was estimated to be -0.28 ± 0.03 in E and ESY, and -0.21 ± 0.03 in GE and GESY. Inclusion of the sire × year interaction effect by itself did not have much of an impact in the reduction of the estimated magnitude of r(AoAm). Rank correlations among EBV for direct effects were larger than 0.94 and did not show any appreciable difference among models, whereas the rank correlation among maternal breeding values displayed differences in the ranking between I and the other models. Models E and ESY recovered the largest amount of total additive variability with maternal effects.     

传统主食发酵剂及其微生物的研究现状

随着社会的发展与进步,历史悠久的传统主食发酵剂逐渐被面包酵母所代替。面包酵母在为人类带来极大方便的同时,也存在一定的劣势。如今人们对主食提出了更高的要求,消费趋势也随之改变,传统主食发酵剂能够满足消费者的口味,因而再度受到极大关注。国外已开展多年酸面团的研究,其微生物,尤其是乳酸菌的研究已取得较大成就。我国有着丰富的传统主食发酵剂资源,但应用及研究仍停留在初级阶段,因而筛选出代表性菌种并应用于工业化生产是首要任务。     

金针菇软腐病的研究

金针菇软腐病是近年来普遍发生的病害,病菌初步鉴定为Ｃｌａｄｏｂｏｔｒｙｕｍ ｓｐ．菌丝生长的适宜温度为１３－２７℃,最适１５－１９℃;适宜ｐＨ值为５．６－８．１,最适为６．０。在马铃薯蔗糖琼脂培养基上生长最好。病害发生期在１０月下旬至１１月和３－４月。气温高（１５℃以上）,湿度大的年份发病严重。室内药剂抑菌试验结果表明：０．０１０％－０．００１％百菌清和０．０５％－０．２０％多菌灵对该病菌的菌丝生