块茎

愈伤组织分化和块茎芽诱导不定芽的最适培养基为MS+6BA2+NAA0.3；

MS + 6BA2 + NAA0.3 was the best medium in induced callus and stem tuber buds to adventitious buds .

在块茎下端产生不定根，构成须根系，每条根均由表皮、皮层、中柱三部组成。

In the lower part of stem tuber produced adventitious roots , each comprising epidermis , cortex and stele , which could form fibrous root system .

马铃薯块茎贮藏期间蛋白质和维生素C含量的变化

Studies on the Content Changes of Protein and Vitamin C during Potato Storage

不同预处理方法对天麻块茎总DNA提取效果的影响

Effect of Different Pretreatment Methods on the Extraction of Genomic DNA of Rhizoma Gastrodiae Tuber

一种简单有效的提取马铃薯块茎总RNA方法

A Simple and Efficient Method for RNA Extraction from Potato Tuber

但是其调控块茎形成机制以及内源CO在块茎形成中作用仍不清楚。

However , roles of AtCO and inner CO in controlling tuber formation remain unclear .

马铃薯块茎RNA提取及RT-PCR法克隆酸性转化酶基因

Extraction Total RNA from Potato Tuber and Cloning Acid Invertase Gene by RT-PCR

整个生育期，马铃薯叶中的N素含量全部高于根、茎和块茎。

N content in the leaves of potatoes were higher than in roots , stems and tubers in the whole growing period .

马铃薯纺锤块茎类病毒RT-PCR检测及全序列分析

Detection of Potato Spindle Tuber Viroid by RT-PCR and Analysis of Its Complete Sequences

用长臂光敏生物素标记的cDNA探针核酸斑点杂交检测马铃薯纺锤块茎类病毒

Detection of Potato Spindle Tuber Viroid by Space-arm Photobiotin Labelled cDNA Probe and Nucleic Acid Spot Hybridization

本文报道了延胡素愈伤组织和地下茎形成块茎的适宜条件：改良H培养基附加BA或BA+GA。

This paper reports on the conditions suitable for the formation of tuber by callus and underground stem of Corydalis yanhusuo .

马铃薯PPO活性变化规律及抗块茎损伤褐化的基因工程研究

Studies on the Regularity of PPO Activity of Potatoes and Anti-wounded-browning Genetic Engineering for Tubers

处理中，以低氮高钾（N4K6）处理的块茎产量、品质与商品率最佳。

Low N + high K treatment gave best yield , quality and commodity rate of tuber among treatments .

两种氮肥水平下，生姜地上部茎叶、块茎和全株的吸K、吸N、吸P量都是随着钾肥施用量的增加而提高。

The uptake amount of nitrogen , phosphorus and potassium for stem-leaf , ginger tube and total plant increased along with the rate of K fertilizer application at two N levels .

DMSO对马铃薯块茎圆片的透性、蛋白谱及多核糖体状况的影响

Effect of DMSO on Potato Tuber Segments in Permeability , Soluble Protein Patterns and Polysome State

叶片中ZR含量为单峰变化曲线，在块茎的形成中起促进作用；

Content of ZR was highest when stolon took place , ZR played promotive role in the course of tuber formation .

通过改进前人的变性液配方，配合本实验室的抽提方法，建立了一个改良的适用于多淀粉块茎、块根组织RNA抽提的方法。

Through modification of the protocol of our lab , a new total RNA isolation method for potato tubers was established by changing the content of denaturant .

结果与结论：随着高温胁迫时间的延长，半夏叶片和叶柄中MDA含量显著增加，而块茎中MDA含量增加却不显著。

Result and Conclusion : By stress time increasing , the content of MDA in lamina and petiole increased obviously , but it increased invisibly in tuber .

对一些非生物因子诱导马铃薯块茎抗立枯丝核菌病的效果进行了初步研究.结果表明：经过温度35℃保持4h；

Effects of abiotic factors were investigated on resistance induction of potato tuber slices against Rhizoctonia solani .

块茎形成期和淀粉沉淀期的叶绿素a、b含量在灌水处理为1次／d～1次／2d时较高。

At tuber form stage and starch deposit stage , when irrigation frequency was 1time / d or 1 time / 2d , contents of chlorophyll a > b in leaves were higher .

马铃薯块茎中花色苷的含量与花色苷合成酶（PAL活性和DFR活性）呈线性正相关。

Anthocyanin content of potato tubers and anthocyanin synthase ( PAL and DFRactivity ) positive correlation . 6 .

施用碳铵能明显降低马铃薯的产量，并降低马铃薯块茎VC、可溶性糖和蛋白质的含量，增加硝酸盐的含量，降低马铃薯的品质。

Ammonium bicarbonate application significantly decreased potato yield as well as Vc , dissolubility sugar , and protein contents , whereas enhanced nitrate content and lower potato quality . 4 .

分离自马铃薯腐烂块茎8个细菌菌株的16Srdna初步鉴定及致病性与室内抑菌效果的研究

Study on the Primary Identification of 8 Bacteria Isolates from Rot Potato Tuber via 16S rDNA , Pathogenic Test and Indoors Control

苗壮，移植入苗床5～6个月就能形成50～100g左右的块茎。

The stem tubers of 50-100 g were formed after the transplantation for 5-6 months and plants grew vigorously .

试验还表明，各追氮处理均未降低块茎的比重，且T3的块茎中干物质含量比T1增加了6%（p0.05）。

The experiment also showed that the treatments splited nitrogen were not to reduce the specific gravity of tubers , and increased by6 % ( p 0.05 ) .

结果表明：垄畦栽培有利于建泽泻块茎产量的提高，促进其主要有效成分24-乙酰泽泻醇A和23-乙酰泽泻醇B的累积，是一项值得推广的改良种植方法。

The result showed that ridge cultivation not only enhance the output but also improve the accumulation of the main available components which are alisol A 24-acetate and alisol B 23-acetate , comparing with the traditional planting method . It is worth spreading .

但是在居群水平上，鳞茎堇菜和块茎堇菜的遗传多样性水平不是很高，h的平均值和I的平均值分别为0.1320和0.1997；

But at the population level , V. bulbosa and V. tuberifera did not present high genetic diversity , in that the means of h and I were 0.1320 and 0.1997 respectively , and the genetic differentiation among populations were evident .

在不同诱导处理条件下，在有块茎形成的处理中植株的总RNA含量在块茎形成时表现上升，说明块茎形成与新的基因表达有关。

In different tuber-inducing conditions , the content of total RNA was increased with the treatments capable to form tubers when tuber was initiating which demonstrated that tuberization was related to the expression of some new genes .

结果证明，改善土壤通气性，可以增加功能叶片ATP含量，提高功能叶片ATP酶活性；增加块茎中ATP含量和脱落酸（ABA）含量，提高块茎中ATP酶活性。

The results showed that the improvement of soil aeration increased the ATP content and promoted the ATPase activity in functional leaves and tubers , and increased the contents of ABA in tubers .

GA、ABA、B9、CCC等生长调节物质对块茎形成的影响与其对茄碱含量的影响无关；

The effects of the plant growth regulators , such as GA , ABA , B_9 and CCC on tuberization of etiolated sprouts or potato plants were not interrelated to their effects on solanine content .