以甜瓜薄皮自交系为材料,研究了外植体、苗龄、激素等因素对甜瓜离体再生的影响。
The thin-skin muskmelon inbred lines were used to study the effects of explants, seedling age, and hormones on plant in vitro regeneration.
次级胚状体的形成又影响了体细胞胚的成苗数。
The formation of the second embryoids influences on the number of the formation shoot.
实验结果表明:细胞分裂素的质量浓度和基本培养基成分对离体培养中的美国芦荟组培苗的玻璃化现象有显著影响。
The experimental results show that the mass concentration of cytokinin and the composition of the basic media have significant effects on the vitrification of plantlets of Aloe vera L. in vitro.
BY 1在组培苗叶片、离体叶片、盆栽苗叶片上均能迅速定殖和扩展,引起叶片病害。
BY1 that could colonized and expanded on the plantlet leaves, unbodied leaves and potted plant leaves cause foliage disease.
1987年和1988年以染色体倍数不同的-15个小麦种为材料,研究不同染色体组成对诱导愈伤组织和分化绿苗的效应。
This study dealt with the effects of chromosome complement on callus induction and differentiation in 15 Triticum species of different Ploidy in 1987-1988.
塑盘钵体育秧是抛秧之前必须做的一道工序,在这种育秧方式中,钵体苗的盘外盘根现象时有发生。
By the way, the pulling out force of seedling with and without root intertwisting phenomena outside seedling plate is test.
研究了苗龄、基因型和外植体类型对黄瓜离体器官发生的影响。
Effects of seedling stage, genotype and explant type on in vitro somatic organogenesis of cucumber were investigated.
利用流式细胞术对4个葡萄二倍体、2个三倍体、1个四倍体试管苗的细胞核dna的相对含量进行测定。
The relative nuclear DNA content of nuclei isolated from young leaves including 4 diploid, 2 triploid and 1 tetraploid was measured by flow cytometry in grape cultivars.
瘤状体顶端由芽原基形成苗端,分化出生长点、原基、叶和腋芽原基。
The top of tumour-body formed shoot apex from bud primordium, and differentiated growing point, leaf primordium. young leaf and axillary bud primordium.
以幼穗直接出芽,一次成苗途径培养,不同三体的培养力亦存在差异;
There was also significant difference in culture ability among different trisomics as the little plants were emerged directly from cultured young panicles.
对胚状体用4%的藻酸钠和2%的氯化钙进行人工种皮包埋后,在无菌条件下,胚状体转变成苗。
Embryoids were encapsulated in 4% sodium alginate and 2% CaCl_2 as artificial seed, then so - me somatic embryos encased in capsule converted to plantlets in the aseptic conditions.
研究了不同浓度NAA处理对三倍体毛白杨试管苗切段扦插繁殖的影响。
A study was conducted on the effect of different concentration of NAA treatments on the cutting propagation of triploid Populus tomentosa testtube plantlet cuttings.
滴苗处理中浓度和时间是影响四倍体诱变效果的关键因素,涂抹处理中浓度是诱变率高低的关键。
The mutation effect of tetraploid were increased with the increasing of concentrations and the prolongation of treatment time in dropping seeding.
并对四倍体刺槐无性系试管苗不定根的发育过程进行了解剖观察,结果表明试管苗嫩梢无潜伏根原基,不定根由诱生根原基发育形成,诱生根原基源于髓射线细胞的分裂和分化。
Latent root primordium was not found in shoots in test tubes. The induced root primordium which originated from the division and differentiation of pith ray cell developed into the adventitious roots.
对四倍体刺槐进行引种栽培试验的结果表明:(1)四倍体刺槐苗在林芝地区引种栽培,平均成活率达85 % ;
According to experiments on introduction and cultivation of Black Locust. The result showed:(1)The average survival rate may reach to 85%;
2006年对砂培替代基质的漂浮育苗技术进行系统研究,开发出砂体作为介质的烟草砂培漂浮育苗操作技术,培育出优于现行漂浮育苗的砂培烟苗。
A research in 2005-2006 was carried out on technology of tobacco floating system using sand as growth medium, and a new sand floating system was developed, producing more vigorous tobacco seedlings.
本研究一方面用秋水仙素浸种、滴苗和涂抹对二倍体西瓜进行处理,将二倍体诱导为四倍体。
To gain tetraploid watermelon resource some diploid was treated with colchicine by means of soaking seeds before germination, dropping and daubing the terminal but of young plant.
多倍体齿瓣石斛试管苗出现了植株粗壮、叶片增厚等优良性状。
The in vitro seedlings of polyploid plant showed advantageous characteristics such as thicker stems and leaves.
多倍体苗叶片厚实、紧凑、植株较矮;
离体条件下单苗叶片数有所增加,且节位越低增加越多。
In vitro, leaf number per culm became more; and the lower node was, the more increase was.
在含有激素的培养基上,离体胚形成大量愈伤组织和畸形苗。
The embryo formed into a lot of callus and transformed into teratosis plants when were cultured on MS with hormone.
大苗龄接穗嫁接体的PPO活性较高。
Polyphenol oxidase (PPO) activity was higher in the early days of grafting.
该钵体播种机,机架上设有负压风机、正压风机、种盘、钵体苗盘和钵体播种盘;
The potted seeding machine is characterized in that a negative pressure fan, a positive pressure fan, a seed tray, a potted seedling tray and a potted seeding tray are arranged on a stand;
该钵体播种机,机架上设有负压风机、正压风机、种盘、钵体苗盘和钵体播种盘;
The potted seeding machine is characterized in that a negative pressure fan, a positive pressure fan, a seed tray, a potted seedling tray and a potted seeding tray are arranged on a stand;
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