STUDY ON CHEMICAL CONSTITUTION OF BENZENE AND ALCOHOL EXTRACTIVES OF TRACEUTRON SINENSE OLIVE

Thechemicalconstitutionsoftheextractivevaryquitindifferentfamily,genusandspecies.ThisVariancecanbeidentifvedmucheasierthanthevariancesofcollulose,semicolluloseand1ignin.Thusthestudyofchemicalconstitutionsofextractiveisanimportantbranchofphytochemistryandchemicalplanttaxonomy.TetracentronSinenseOliveisaspecialbroad-leavedspecies.Therearetracheidsbutnovessel.Bothcharactersofbroad-leavedandconiferspeciespresentinonespecies-Thusthestudyofchemicalconstitutionsoftheextractivefromthisspeciesisquite…     

Study on chemical constitution of benzene and alcohol extractives ofTraceutron Sinense Olive

The wood powder ofTetracentron Sinense Olive was extracted with the benzene and alcohol (2:1 v/v). Then, the extractive is analyzed in Gc and Gc-Ms. Twenty chemical constitutions of the extractive are separated and identified, which are as follows: calamenene; 2.6,10-trimethyldihexyl; 3-methoxybenzaldehyde; Methyl-4-methox-_ybenzoate; 4-methoxyphenylacetone; 3.4-dimethoxybenzaldehyde; 3.4-dimethoxyhypnone; methyl-3.4-dimethoxybenzoate; Methyl-4-methoxyphenylacrylate; 4,4′-dimethoxycabonyl-diphenylethane; Methyl-3, 4,5-erimethoxybenzoate; Methyl-3.4-dimethoxyphenylacrylate; Methyl-myristate; Methyl-palmate; Methyl-zoomarate; Methyl-stearate; Methyl-oleate; Methyl-arachidate; Methyl-behenate; Dimethylazelate.     

普通菜籽粕(饼)的发酵处理及其应用

本文简要综述了普通菜籽粕(饼)的营养特性、质量标准和饲用价值,介绍了菜籽粕(饼)的发酵技术及其产品质量标准,并列出了发酵菜籽粕(饼)在生猪日粮中的用量和相应配方。     

蔗糖和B_(12)对昆明地区油橄榄扦插生根的影响

在昆明市海口林场种植的油橄榄树干较易萌芽,芽条生长快,但是由于管理粗放,插穗营养不良,扦插难生根。因此,从油橄榄喜光、耐高温且插穗营养不良的角度出发,在高温高湿条件下,针对蔗糖、B12及插床设计对油橄榄扦插生根的影响进行试验研究。结果表明,插穗经采用100 mg/l IBA+5%蔗糖+10 ml B12浸泡2 h处理生根率可达69.3%,平均不定根数可达10.9条,平均不定根长4.2 cm,根系效果指数为0.60。插床空间越小,生根效果越好。     

Instrumentation for Evaluating Differences in Ammonia Volatilization from Broiler Litter and Cake

Greater understanding of the mechanisms affecting NH₃ volatilization from reused broiler bedding is needed to determine pathways for mitigating NH₃ emissions. A chamber acid trap (CAT) system was developed to provide an improved laboratory method for determining NH₃ volatilization from litter or cake samples and for assessing treatment technologies to decrease NH₃ losses from poultry litter. The CAT system offers precision control of air flow rate through sample chambers as well as straightforward, precise determination of the amount of N volatilized. This article outlines the basic setup of the CAT system. The system can be utilized and modified for researching specific mechanisms involving physical, chemical, or biological treatments affecting NH₃ volatilization from litter or cake.     

The effect of deficit irrigation on crop yield and vegetative development of Olea europaea L. (cvs. Frantoio and Leccino)

Water is the most important environmental constrain determining plant growth and fruit yield of olive tree plantations. Although olive trees are resilient to water-limited conditions of Mediterranean-type agroecosystems, crop yields may respond positively to any additional water up to a limit. A field experiment on olive trees was carried out with the aim to present guidelines for efficient management of irrigation scheduling, based on the relationship between plant water status and optimum fruit yield. These relationships were monitored during 2 years by analysing the influence of deficit irrigation strategies on vegetative development and yield parameters on mature modern-trained olive trees of cvs. Frantoio and Leccino. Treatments were: a non-irrigated control (rainfed) and three treatments that received seasonal water amount equivalent to 33, 66 and 100% of ET_C in the period August–September, from the beginning of pit hardening to early fruit veraison. Atmospheric evaporative demand and soil moisture conditions were regularly monitored. Seasonal dynamics of plant water relations varied among treatments, and responded to variations in tree water status, soil moisture conditions and atmospheric evaporative demand. All measurements of tree water status were highly correlated with one another. Differences in yield between treatments indicated that water availability might have affected fruit weight before flowering or during the early stages of fruit growth rather than later in summer season. Results concerning crop yield revealed that irrigation of olive trees from the beginning of pit hardening could be recommended, at least in the experimental conditions of this study and in view of differences between genotypes.     

无糖豆渣蛋糕的研制

采用蔗糖替代品和处理后的豆腐渣为原料,利用蔗糖替代品的甜味及豆腐渣的低热量高纤维的特性,研制出一种具有甜味而且高纤维低热量的蛋糕。     

苹果蛋糕的研制

以正交实验验证了添加苹果的蛋糕制作工艺。实验结果表明了鸡蛋用量是影响蛋糕综合感官品质的最主要因素,其次为苹果用量,再次为泡打粉的添加,加糖量和加水量影响最小。以面∶蛋∶糖为5∶4∶3的比例制作蛋糕,添加3%的新鲜苹果,调节泡打粉、糖和水的用量,可制作出美味可口、营养丰富的苹果味蛋糕。     

油橄榄灌溉管理研究进展

综述了油橄榄灌溉需水量研究的基本方法和典型模型,阐述不同亏缺灌溉策略在油橄榄灌溉中的应用,并分析和比较不同灌溉制度在油橄榄灌溉管理上的优劣,以期对我国油橄榄灌溉管理研究和油橄榄生产提供借鉴。     

不同灌溉量对油橄榄产量和果实品质的影响

采用盆栽称质量的方法,对盆栽油橄榄灌溉20%、40%、60%、80%、100%、120%、140%蒸腾蒸发量（ET0）,进行产量与果实品质研究。结果表明,灌溉量为100%～140%ET0时单果重、果肉率最高;100%ET0时产果量最高;40%ET0时含油率最高;80%ET0时产油量最高。对于果用油橄榄最佳灌溉量范围为100%～140%ET0,油用油橄榄最佳灌溉范围为60%～100%ET0。