共查询到20条相似文献，搜索用时 531 毫秒
1.
温度和pH值对大球盖菇菌丝生长的影响 总被引：2，自引：0，他引：2
本文对大球盖菇茵丝生长的温度和pH值进行了研究，结果发现供试菌株在5—35℃范围内菌丝都可以生长，但不同温度条件下菌丝生长速率不同，最适生长温度为25℃。菌株在培养基pH5-pH11范围内都可以生长，大部分菌株最适生长pH值为7。 相似文献
2.
通过应用杏鲍菇菌丝对温度、pH值、碳源及生长调节剂浓度等不同条件处理下生长速度的测定进行研究.结果表明,杏鲍菇最适生长的温度为25℃,pH值为7,合适碳源为葡萄糖,其用量为20g/L.添加激素对菌丝的生长有明显促进作用. 相似文献
3.
观察在不同温度和pH值条件下，鲍鱼菇8120（Pleurotus abalone 8120）和平菇P54（Pleurotus ostreatus P54）菌丝体的生长情况．结果表明：鲍鱼菇8120菌丝适宜生长温度为20℃～33℃，最适温度为22～28℃。适宜pH值为5．0～8．0，最适pH值为7．2～8．0；平菇P54菌丝适宜生长温度为20℃～33℃，最适温度为25℃～31℃，适宜pH值为5．0～8．0，最适PH值为6．0～6．5． 相似文献
4.
培养料含水量对大球盖菇菌丝生长的影响 总被引：2，自引：0，他引：2
本文研究了大球盖菇菌丝在不同含水量的锯末培养料中的生长情况，结果显示，大球盖菇菌丝在锯末含水量为45％-75％时都能生长，最佳含水量为70％，在较低含水量的培养料中大球盖菇菌丝生长较稀疏。 相似文献
5.
培养料含水量对大球盖菇菌丝生长的影响 总被引：1，自引：0，他引：1
本文研究了大球盖菇菌丝在不同含水量的锯末培养料中的生长情况,结果显示,大球盖菇茵丝在锯末含水量为45%～75%时都能生长,最佳含水量为70%,在较低含水量的培养料中大球盖菇茵丝生长较稀疏. 相似文献
6.
皱马鞍菌生物学特性研究 总被引：1，自引：0，他引：1
进行了皱马鞍菌（Helvella crispa)碳源同化、氮源同化研究，测定了菌丝生长温度、酸碱度以及在母种、原种、栽培种培养基上菌丝生长情况，结果表明：皱马鞍菌菌丝生长的最适碳源为D－果糖、葡萄糖、麦芽糖；最适氮源为蛋白胨；菌丝生长温度范围为5－38℃，最适为25℃；酸碱度范围为pH值3－10，最适为7－8；菌丝能在麦粒、棉籽壳、木屑等多种培养基质上良好生长。此研究对皱马鞍菌驯化栽培具有一定的指导意义。 相似文献
7.
进行了皱马鞍菌（Helvellacrispa）碳源同化、氮源同化研究，测定了菌丝生长温度、酸碱度以及在母种、原种、栽培种培养基上菌丝生长情况。结果表明皱马鞍菌菌丝生长的最适碳源为D-果糖、葡萄糖、麦芽糖；最适氮源为蛋白胨；菌丝生长温度范围为5～38℃，最适为25℃；酸碱度范围为pH值3～10，最适为7～8；菌丝能在麦粒、棉籽壳、木屑等多种培养基质上良好生长。此研究对皱马鞍菌驯化栽培具有一定的指导意义。 相似文献
8.
郁金香枯萎病是贮藏期郁金香鳞茎上发生普遍、危害严重的病害之一.对病原菌Fusarium proliferatum的生物学特性及六种杀菌剂对其的抑制作用进行了研究,生物学特性实验表明：该菌在5～35℃,pH 3～9条件下均能生长,最适生长温度为25℃,最适生长pH为7.室内药剂筛选结果表明：430 g/L戊唑醇悬浮剂对该菌菌丝生长的抑制效果最好. 相似文献
9.
点枝顶孢为四川省分布的黄褐裸盖伞、粪生裸盖伞及裸盖伞205菌株的伴生菌。研究了点枝顶孢对碳素营养和氮素营养的同化利用情况以及菌丝生长的温度和pH值范围。结果表明，点枝顶孢对麦芽糖、可溶性淀粉和葡萄糖同化能力最强，不能利用d-半乳糖、L-山梨糖、L-阿拉伯糖、甘露醇、乳糖和木聚糖；对酵母粉、干酪素钠和琥珀酸铵的同化能力最强，不能利用尿素和亚硝酸钠；菌丝生长的温度范围是5～40℃，最适25℃；菌丝生长的pH值范围较宽（1．5～13．5），最适pH为6．5。点枝顶孢具有明显的遗传多样性，研究作为三种裸盖伞伴生菌的点枝顶孢菌株的生物学特性，具有一定的理论意义。 相似文献
10.
通过三株红假单胞菌在不同碳源、氮源、pH值和不同温度等条件的混菌培养实验，筛选出适合其生长的最适碳源、氮源、pn值和培养温度、试验结果表明：该混合菌株在乙醇、丙酸钠、乙酸钠等5种碳源中，以乙酸钠为最适碳源；在氯化铵、硫酸铵等5种无机氮源中，以硫酸铵为最适氮；最适pH为8．5；最适培养温度为38℃。 相似文献
11.
罗艳萍 《读与写:教育教学刊》2008,5(6)
The communication of people partially is the communication of cultures. Culture has a direct effect on international commercial activities in all aspects. Different conceptions about time, space, equality, law and the like, lead people to deal with things in different ways. So to know cultures of the counterpart is to facil-itate our enterprises so as to have a smooth and successful communication in commercial activity. 相似文献
12.
Richard Denner 《海外英语》2007,(4):14-15
Rosco and I wait for the fishermen to return.I sit at a wooden bench near the store at Mt.Baker Resort and watch the clouds change shape. Rosco has my belt around his neck and an eight foot tow chain hooked to a tree. Dogs must be on a leash. Ducks and rabbits are loose. 相似文献
13.
Given a graph G,a subgraph C is called a clique of G if C is a complete subgraph of G maximal under inclusion and |C|≥2. A clique-transversal set S of G is a set of vertices of G such that S meets all cliques of G. The clique-transversal number, denoted as TC (G), is the minimum cardinality of a clique-transversal set in G. The clique-graph of G, denoted as K (G), is the graph obtained by taking the cliques of G as vertices, and two vertices are adjacent if and only if the corresponding cliques in G have nonempty intersection. Let F be a class of graphs G such that F={G|K(G) is a tree}. In this paper the graphs in F having independent clique-transversal sets are shown and thus TC (G)/|G|≤1/2 for all G ∈ F. 相似文献
14.
15.
陈美曦 《山东教育学院学报》2008,23(2):103-107
Different nations have different social cultures, and the social culture of every nation is developing with the development of the nation, language is greatly influenced by social culture, which enables language to possess national and historical characteristics. Word is the smallest, independent, meaningful linguistic unit of language. It can well reflect the national and historical characteristics. From synchronic aspect, the social and cultural influence on word meaning is mainly embodied in conceptual and associative meanings of word. The incorrespondence of word meaning is a phenomenon that exists in both conceptual and associative meanings of word among different languages. From diachronic aspect, the development of social culture causes some changes of word meaning to some extent. Therefore, social culture plays a key role in vocabulary learning and mastery of a language. 相似文献
16.
邱崇丙 《唐山师范学院学报》2014,(1):21-23
汉字的六书,《说文》对“转注”一类,语焉不详。后世学者提及转注,也仅限于许慎所举出的例字。《汉字例说》一文,作者从转注的角度综合考虑,对部分现代常用字作了分析,跟传统的解释有所不同。希望能抛砖引玉,互相切磋,以推进学术研究。 相似文献
17.
《海外英语》2007,(4):36
There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love. 相似文献
19.
Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject. 相似文献
20.
Anton Franks 《English in Education》1999,33(2):39-49
This paper looks at the way drama works to bring a model of an arts curriculum into reality. He also shows how drama is valuable when discussed as a separate, autonomous subject in the school curriculum as opposed to one subsumed within English. He argues for a view of the arts and gives an example of a sequence of work in an English GCSE class based around Arthur Miller's play View from the Bridge. From this he draws out several strands about the relationship of the drama curriculum to the individual students and teachers, the school, and to culture. He also emphasises the primacy of performance in drama education. 相似文献