苹果不同砧木枝条导管分子特征参数比较     

王辉  尹宝颖  韩林林  李中勇  张学英  徐继忠 《北方园艺》2019,(20):51-56

以苹果矮化砧木M27、M9、M26、MM106及乔化砧木八棱海棠的一年生枝条为试材,采用组织离析法,研究了苹果不同砧木导管分子在光学显微镜和扫描电镜下形态特征参数,以期为探索苹果矮化砧木致矮机理提供依据。结果表明:八棱海棠与M系砧木导管分子均为孔纹导管;八棱海棠导管分子在长度和尾长上均显著高于M系砧木;M系砧木导管分子宽度、纹孔式、纹孔膜残留、端壁倾斜角与八棱海棠无明显差异。以上结果表明,矮化砧木较乔化砧木具有短导管性、短尾性,这种特性可能是矮化砧木致使树体矮化的原因之一。  相似文献   

葡萄砧木的应用研究现状及展望     

赵艳侠  张久慧  亓桂梅 《北方园艺》2019,(11):136-142

葡萄砧木以抗旱、抗寒、耐盐碱等特性在生产上得到广泛应用,成为应对生物及非生物胁迫的重要手段。该研究对近年来国内外葡萄砧木相关研究工作进行文献综述,对葡萄砧木抗性评价、应用研究现状,以及对葡萄生长发育和果实品质等影响进行阐述和分析,并提出了葡萄生产中存在的问题及今后的研究方向,以期为我国葡萄生产和研究工作提供参考和依据。  相似文献   

Fruit Production and Nutrient Status in Grapefruit on Five Rootstocks     

Kiriaki Tsakelidou  Xeni Papanikolaou  Nikitas Karagiannidis 《Journal of plant nutrition》2013,36(7):995-1004

A trial was conducted during two years (2000/01 and 2001/02) on two sites using ‘Shambar’ grapefruit trees grafted to five rootstocks. The sites were located on the Greek island of Kos to evaluate the effect of rootstock and location on fruit production and leaf mineral composition of ‘Shambar’ grapefruit. Results indicated that yields were higher in 2001/02 than in 2000/01 and these differences were greater at site 2. Leaf nitrogen (N), potassium (K), zinc (Zn), and to some degree phosphorus (P) content was slightly deficient to deficient for the majority of the samples taken. Calcium (Ca) and magnesium (Mg) levels ranged from normal to high. The copper (Cu) and iron (Fe) leaf contents and the manganese (Mn) content of most samples were in the optimum range. The interactions between rootstock, site, and year upon yield and nutrient content were statistically significant. There were also significant correlation coefficients between yield and nutrient content as well as among the nutrients.  相似文献   

Root Architecture Plasticity of Citrus Rootstocks in Response to Nitrate Availability     

A. Sorgonà  M. R. Abenavoli  P. G. Gringeri  A. Lupini  G. Cacco 《Journal of plant nutrition》2013,36(11):1921-1932

Under nutrient heterogeneous soil conditions, the ability of plants to compete for resource acquisition was closely related to the plasticity of root architecture, intended as a change of topology and geometry.

Root architecture variations in response to different nitrate supplies of co-generic citrus rootstocks, ‘Rough Lemon’ (Citrus jambhiri Lush), ‘Sweet Orange’ (Citrus sinensis (L) Osbeck), ‘Cleopatra Mandarin’ (Citrus reshni Hort ex Tan.), and ‘Sour Orange’ (Citrus aurantium L.) are reported here. Root architecture was gauged by an image-specific analysis system (WinRHIZO).

Based on the topological index, root topology of citrus rootstocks varied in response to nitrate treatments. In terms of root geometry, external-external and, to a lesser degree, internal-internal links of all rootstocks changed in response to nitrate supply. Among the rootstocks, ‘Cleopatra Mandarin’, both in terms of root topology (high TI) and root geometry (high length of exterior and interior link), could be considered less competitive owing to resource acquisition compared to the other rootstocks.  相似文献   

红星苹果矮化自根砧的营养耐旱生理特性     

李登科  张忠仁  邵开基  杜学梅  武伴兰 《果树学报》1992,(4)

对嫁接在M7、M9、山定子砧木上的红星苹果的叶片解剖结构、叶绿素含量、净光合效率、矿质营养及耐旱性进行测定,结果表明,供试砧木对嫁接品种的叶片厚度、栅状组织厚度、比叶重、叶绿素含量、叶绿素a含量及净光合效率均无显著影响;叶片矿质元素含量,除M9、山定子与M7的B元素外,各砧木嫁接品种的N、P、K、Ca、Mg、Fe、Zn、Mn元素含量均无显著差异:在干旱条件下,山定子比M7、M9砧木耐旱,山定子与M7、M9对嫁接品种蒸腾强度无显著影响,但前者比后者叶片水势大,表现了耐旱的特性。  相似文献   

甜樱桃砧木品种嫩茎段离体培养技术     

陆锦明  朱天华  李立科  汤桂钧 《上海交通大学学报(农业科学版)》2014,(2):79-83

以甜樱桃砧木品种"吉塞拉6号"春季萌发的半木质化新枝为外植体,经清洗消毒后切成1cm长茎段,接种于发生培养基上诱导萌发无菌芽,继而培育成无菌系。经过连续继代增殖和生根培养,培育成试管苗。将试管苗移入"泥炭+椰糠+珍珠岩"基质中进行炼苗,成活率达到了96%以上,培养二个月后移入塑料穴盘中,育成高质量的"穴盘苗"。研究表明发生培养基配方为1/2MS+3.0mg/L ZT+0.3mg/L IBA+2.0mg/L活性炭;增殖培养基配方为MS+1.0mg/L BA+0.1mg/L NAA为宜;生根培养基以1/2MS+0.3mg/L IBA。三个培养阶段的培养基配方及培养室光温调控、试管苗炼苗技术组成整个组织培养快繁技术体系,为甜樱桃嫁接育苗奠定了良好基础。  相似文献   

利用苹果矮化砧木进行密植丰产栽培的意见   总被引：2，自引：2，他引：2  

王继世  董绍珍 《中国农业科学》1989,22(6):44-49

 本文总结了中国30多年来对苹果矮化砧木的利用工作，依据大范围的区域试验结果，论述了矮化砧木在苹果密植丰产栽培中的作用，提出了利用苹果矮砧的区划意见，以及与矮砧苹果相适应的系列栽培技术，最后就矮化砧木利用中的看法进行了讨论。作者认为在中国的主要苹果产区如渤海湾、胶东、黄河故道、秦岭北麓以及渭北高原等地均可栽培矮砧苹果，现在已经有了比较成熟的经验，因地制宜地选择利用矮化砧木，将对提高中国的苹果栽培水平起到积极作用。  相似文献   

温州蜜柑砧木的研究     

李润唐  罗先实  吴明清  欧召华  韩为灿 《湖南农业大学学报(自然科学版)》1993,(1)

为了探讨温州蜜柑的适宜砧穗组合,本研究以10种不同的砧木嫁接立间温州蜜柑,进行了13年比较试验.田间试验结果表明:枳和天然杂交枳橙是立间温州蜜柑的良好砧木,但枳的不同类型间存在明显差异.从枳群体中选育优良单系,或通过杂交培育枳橙是选育柑桔砧木的重要途径.  相似文献   

与油梨成熟有关的mRNA的分离及cDNA文库的构建     

叶志彪 《华中农业大学学报》1993,12(5):485-489

油梨果实在７℃下贮藏一定时期，取果实样品抽提总ＲＮＡ，通过ｏｌｉｇｏ ｄＴ纤维素柱纯化，获得ｐｏｌｙ（Ａ）＾＋ｍＲＮＡ，利用λＺａｐ－ｃＤＮＡ合成试剂盒合成双链ｃＤＮＡ，再将ｃＤＮＡ连接到克隆载体Ｕｎｉ－ＺａｐＸＲ上，构成与油梨果实成熟有关的ｃＤＮＡ文库，同时，利用纤维素酶和乙烯形成酶克隆探针，对文库作了筛选。  相似文献   

The effects of apple rootstock genotypes on mineral content of scion leaves     

A. J. Kennedy  R. W. Rowe  T. J. Samuelson 《Euphytica》1980,29(2):477-482

Summary The relative effects of year to year variation and rootstock genotypes on the major content of leaves of four apple scion cultivars were studied. For nitrogen and phosphorus the main source of variation was due to years. For potassium, magnesium and calcium there were significant genetic effects. The results are discussed in relation to breeding for improved efficiency in mineral uptake in apple rootstocks. Particular reference is made to uptake of minerals associated with physiological disorders of stored apples.  相似文献