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酵素菌发酵和二次发酵玉米秸秆料对双孢蘑菇生育影响的研究 总被引：3，自引：1，他引：2
以玉米秸秆为原料．采用了酵素菌发酵和常规二次发酵两种不同料处理方式．作了栽培双孢蘑菇的试验。记载发酵期间料温的动态变化、微生物区系的含菌量变化及对双孢蘑菇生长发育等的影响效果。结果表明。采用酵素菌发酵培养料与二次发酵料相比．有益微生物数量增加。营养成分得到改善。培养料质量获得优化。促使双孢蘑菇的菌丝生长加快．菇体产量和质量提高。 相似文献
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针对双孢蘑菇培养料传统室外发酵温度不可控、发酵理化性质差、栽培产量低等问题,设计建造适合高海拔低温地区的培养料发酵隧道生产设施。通过阐述一次发酵、二次发酵隧道整体结构和工作原理,对发酵料仓、地下送风管、进回风系统、控制系统关键部位进行设计。发酵试验与应用结果表明,一次发酵、二次发酵温度均易于控制,能够达到不同发酵阶段的温度需求。通过试验提出了隧道发酵中合理的风机运行控制参数,该条件下发酵后培养料含氮量为2.2%～2.4%、灰分为25%～30%、含水量为67%～69%、pH为7.5～7.8,理化性状优良,栽培产量达到25 kg·m-2,该设施适宜高海拔地区双孢蘑菇培养料工业化规模生产。 相似文献
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不同发酵方式制备的小麦草蘑菇培养料的质量及蘑菇的产员有较大的差异。试验结果表明,在其它条件相同的情况下,室内二次发酵的培养料比室外一次发酵的增产40.8％;室外堆制发酵翻堆两次后,改小堆进行空心发酵的培养料比室外一次发酵的增产33.8%,其增产幅度同室内二次发酵的较为接近,且耗资少,省工简便。 相似文献
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蘑菇培养料质量的优劣直接关系到蘑菇产量的高低,为了能在栽培之前对蘑菇培养料的发酵质量有所了解,我们研究了应用蘑菇增温剂制备培养料时料温的变化与发酵质量间的相关性,以期从料温的变化预测蘑菇发酵料的质量,现将结果报告如下.一、材料与方法(一)培养料发酵方法应用蘑菇增温剂制备蘑菇培养料.蘑菇增温剂系本所生产的一种新型生物能催化剂. 相似文献
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在蘑菇栽培中,培养料的后发酵技术越来越为人们注重。后发酵即是培养料经过堆制,在最后一次(一般前发酵的第3次)翻堆后,当料温升至50～60℃时趁热运进发酵室,使其在10～12小时内料升温至60～62℃保持4～6小时,通风降温至48～52℃维持4～5天。因此,后发酵也称二次发酵。试验表明,后发酵的产量比一次发酵的产量高出48.1％。本文介绍两种常用的后发酵方法。 相似文献
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制备适合蘑菇生长的培养料是栽培蘑菇的关键。随着蘑菇生产在我国的迅速发展,广大蘑菇种植者希望有一种快速有效的蘑菇培养料发酵新技术,以克服目前二次发酵技术周期长、费工多、耗能大的缺点。为此,我们于1987年开始进行蘑菇培养料发酵新技术的研究,制成了适于制备蘑菇培养料的“增温发酵剂”,并以此为基础,建立了一套蘑菇培养料节能、快速、床式发酵的新技术,现将结果简报如下:(一)增温发酵剂的制备在掌握国内外最新研究动向的基础上,我们在国内首次分离筛选到可用于蘑菇堆肥的微生物,并以此为基础制成了适用于制备蘑菇培养料的“增温发酵剂”。(二)应用增温发酵剂进行蘑菇培养料发酵根据增温发酵剂的最佳生长条件和二次发酵的原理,同时参照国外短期发酵技术和室内发酵方法,并结合国内常规堆制发酵的操作步骤,我们建立了一套在生产上行之有效的节能、快速、床式蘑菇培养料发酵新技术。其具体流程为:稻草的切割和预湿一预堆一添加增温发酵剂一培养料进房床式发酵一翻格播种一管理采收。与二次发酵技术相比,每堆制111.1米~2培养料,应用这技术可省煤150～300公斤,省工8～10个,缩短周期5～10天。 相似文献
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双孢蘑菇培养料隧道发酵技术是将培养料按照配方要求精准配料，通过预湿、混料环节进入一次发酵隧道，在75～80 ℃ 条件下完成微生物发酵及焦糖化反应，然后转入二次发酵隧道，在58～60 ℃ 条件下进行巴氏杀菌杀虫，45～50 ℃ 条件下进行控温发酵，生产出的培养料理化性状稳定，利于双孢蘑菇菌丝生长。实践证明，采用工厂化生产的二次发酵料栽培双孢蘑菇，出菇产量可较传统发酵料栽培提高60%～120%。 相似文献
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《Scientia Horticulturae》2005,105(3):373-382
Iran has an apple production of 1.9 million tons, seventh largest in the world. However, in comparison to this production the export of apples is very small (0.19 million tons).There are some situations in which it is desirable to determine relationships between physical attributes. Models for predicting the mass of apples from their dimensions and projected area were identified. Models were divided into three categories: (1) single and multiple variable regression of apple dimensions (first category); (2) single and multiple variable regression of projected areas (second category); (3) estimation of apple shape – ellipsoid or spheroid based on volume (third category). Two different varieties of Iranian apples were selected for study. Red and Golden Delicious varieties from the four different regions of Damavand, Semirom, Maragheh and Oromiyyeh with a total of 644 observations.These models have been obtained for individual varieties as well as for mixed varieties. Among single variable models, first category, mass model with smallest diameter of apple had a strong relationship with a very high coefficient of determination, R2, and minimum regression standard error, R.S.E., for the total observations. Therefore, the apple diameter is a good parameter for sizing.Second category mass models, with three projected areas, had maximum R2 and minimum R.S.E. relative to others. Among the single variable models obtained from projected area, had maximum R2 = 0.94 and minimum R.S.E. = 10.9.Third category models had the best performance, with R2 closer to unity, followed by second and first category models. The second category models need electronics systems with cameras for projection, whereas first category models may be employed in simple mechanical systems, with the exception of multiple variable models of dimensions and third category models that require three dimensional mechatranic systems.Normal relative frequency distribution of second diameter for the total observations was graphed and the levels of sizing were identified. 相似文献
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麝香百合鳞片繁殖初探 总被引：6，自引：0，他引：6
麝香百合 (LiliumlongiflorumThunb .)是百合中的名贵种类 ,我国栽培的品种绝大部分依赖从荷兰、日本、美国等进口 ,其商品球繁殖率低 ,难以满足生产需要。本试验以东方型麝香百合为材料 ,探索不同浓度的多效唑 (PP3 3 3 )、吲哚乙酸 (IAA)、吲哚丁酸 (IBA)处理鳞片对其繁殖所产生的效应 ,以期为规模生产奠定基础。1 材料与方法1 .1 材料供试品种为皇族 (LeReve) ,由广东省顺德成美园艺种苗公司提供。1 .2 方法试验在佛山科技学院北院教学基地进行。选择无病斑、无虫害、无机械伤周径为 1 6～ 1 8cm的百合种球 ,小心将外层鳞片剥下 … 相似文献
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枣 头摘心是调节树体营养生长和促花坐果 的一项全面技术,有的枣农在生产中不根据摘心的目的和用途,把该项技术单纯的作为促花坐果技术应用, 因此就出现了摘心过早、过重,见头就打,几乎将冠内、冠外生长的新生枣头全部打光,造成枝叶生长量减少,树冠扩大受阻;坐果数量大大增加,果实品质下降;树体营养匮乏,树势严重衰弱等不良后果。 1、枣头摘心的作用 枣头摘心可打破茎尖生长极性(茎尖含有较多生长素类物质),抑制枝条的加长生长,促进下部树叶的加粗生长,提高树体的营养积累和转化水平,从而既有利于树体的营养生长,又有利… 相似文献
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DING Yi WANG Jia-fu LIU Tong-mei DUAN Wen-zuo SONG Xiu-yuan GONG Jian-ling 《园艺学报》2000,16(10):894-896
AIM: To investigate the effects of insulin on aortic constriction caused by endothelin-1(ET-1) in normal and hyperglycemic rats. METHODS: Hyperglycemic rat models were prepared. Two aortic rings were immersed in the Krebs-Hensleit fluid with and without insulin (40 mIU/L) and the responses of rings to 10-9 mol/L ET-1 were observed. RESULTS:ET-1 induced more obvious aortic ring constriction in normal rats than those in hyperglycemic rats ( P< 0.01). Rings constriction caused by ET-1 were attenuated in normal rats if the rings were immersed in the KH fluid with insulin ( P< 0.01), but no obvious changes were found in hyperglycemic rats.CONCLUSION: (1) the vasoconstriction of aortic rings caused by ET-1 can be reduced by hyperglycemia. (2) Insulin can attenuate the aortic response to ET-1. (3) Insulin can not attenuate the vasoconstriction caused by ET-1 in hyperglycemic rats. These results suggest that insulin may affect vasoconstriction caused by ET-1, which may be involved in the pathogenesis of vascular complication in diabetic or insulin resistance condition. 相似文献
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环境因素对曼陀罗种子萌发特性的影响 总被引：1，自引：0，他引：1
研究了光照、温度、pH以及浸种温度对曼陀罗种子萌发率的影响。结果表明:曼陀罗种子为嫌光种子;种子在温度21～27℃,pH 4～8的范围内都有较高的萌发率;使用40～60℃的温水对曼陀罗种子浸种,萌发率显著提高。 相似文献
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This paper presents a method for characterizing the complexity of landscape boundaries by remote sensing. This characterization is supported by a new boundary typology, that takes into account points where three or more landcovers converge (i.e., convergency points or coverts). Landscape boundary richness and diversity indices were proposed and calculated over 19 landscapes in South-East Brazil. Results showed that landscape boundaries, especially convergency points, provided an enrichment in landscape pattern analysis. Landcover boundary diversities were significantly related to landcover shape: elongated riparian units had the highest values for boundary diversity and coverts proportion indices. On the other hand, landscape analysis showed that indices of shape, richness, diversity and coverts proportion provided an additional evaluation of landcover spatial distribution within the landscape. 相似文献