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寒丰黑穗醋栗的修剪技术 总被引:1,自引:0,他引:1
寒丰是黑龙江省农科院牡丹江农科所采用远缘杂交方法选育的黑穗醋栗新品种 ,其母本为品质好、丰产性强的亮叶厚皮 ,父本为抗寒、大果型、高营养的野生兴安茶蔗。寒丰具有很强的抗寒性 ,在黑龙江、吉林、内蒙古高寒地区无需任何防寒措施可安全越冬 ,深受果农的欢迎。寒丰黑穗醋栗在生产中推广 5年来 ,尚未建成丰产、高效的典型示范园。其主要原因是修剪不当 ,为解决这个问题 ,现将该品种的适宜修剪方法简介如下。1 建园及初果期树修剪黑穗醋栗为多年生小灌木。通常采用一穴栽植多株的方法建园。由于该品种苗少价高 ,为降低建园成本 ,宜采用… 相似文献
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牡丹离体快繁技术研究 总被引:11,自引:0,他引:11
以“洛阳红”和“姚黄”等品种为试材,对牡丹的离体快繁技术进行了研究。结果表明:牡丹芽培养的适宜外植体是2月份取材的休眠芽。附加BA1mg·L-1和GA0.5mg·L-1的改良MS培养基对牡丹芽的增殖和生长最有效。1/2MS+IBA1mg·L-1培养基有利于牡丹试管苗生根。在较低温度下,以腐殖土作基质,牡丹试管苗的移栽成活率达48%。 相似文献
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甜樱桃新品种玲珑脆的组织培养和离体快繁技术 总被引:1,自引:0,他引:1
试验对河北省农林科学院昌黎果树研究所培育的新品种玲珑脆进行了组培快繁研究。结果表明:适宜的芽萌发培养基为MS+6-BA 1.5 mg/L+NAA 0.05 mg/L;增殖培养基为MS+6-BA 0.6 mg/L+NAA 0.05 mg/L,增殖系数平均3.2;生根培养基为1/2 MS+IBA 0.5 mg/L+IAA 0.5mg/L,移栽成活率达到85%以上,建立了一套较为简单、有效的甜樱桃组织培养和离体快繁技术程序。 相似文献
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Fengtong Ma Xiangsan Zhu Chunhui Guo Qiaorong Zhang Weixiu Song Lixin Mei 《The Journal of Horticultural Science and Biotechnology》2013,88(6):751-759
A procedure of shoot tip culture for commercial production of plantlets of Ribes nigrum is described. An average multiplication rate of 4.7 proliferated shoots was achieved within 21 days of shoot tip (1-2 mm) cultures on a Murashige and Skoog (MS) medium supplemented with 1-2 mg 1“1 6-benzylaminopurine and 0.1 mg T1 indole-3-acetic acid. Following 1-3 d of dark treatment with three proliferated shoots per culture tube on half-strength MS medium, 83-96% of these shoots rooted. When these rooted shoots were transferred to wooden boxes with vermiculite as supporting medium for hardening, 97% survived. Plantlets grew well after transplanting to the nursery field. It is concluded that the use of (i) smaller shoot tip explants during shoot profileration stage, (ii) initial three days of dark treatment during the root initiation stage, and (iii) vermiculite as a supporting medium for plantlets during the hardening stage, are economic, efficient and practical procedures for commercial production of plantlets of R. nigrum by shoot tip cultures. 相似文献
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R. M. Brennan B. A. Goodman J. A. Chudek 《The Journal of Horticultural Science and Biotechnology》2013,88(6):919-924
Experiments are described in which the technique of nuclear magnetic resonance (NMR) microimaging is used to observe in vivo freezing induced damage to flowers to Ribes nigrum. An increase in the free water signal in the stylar and ovular regions of the flowers was observed after freezing, as a result of tissue disruption in these areas. 相似文献
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魔芋组培快繁的影响因素 总被引:2,自引:0,他引:2
以万源花魔芋顶芽、球茎为外植体,比较不同激素浓度配比对外植体培养的影响,并进一步诱导试管微型芋。结果表明:顶芽是魔芋组培快繁的最佳外植体,腋芽产生频率高、速度快,较球茎分化不定芽的时间提早60 d左右|腋芽分化适宜培养基是MS + BA 2.4 mg?L-1 + NAA 0.1 mg?L-1,腋芽分化率90%|在增殖培养基中腋芽增殖系数达3.58|腋芽在MS + BA 0.5 mg?L-1 + NAA 0.01 mg?L-1 + 蔗糖50 g?L-1培养基中诱导形成微型芋,培养60 d的诱导率达90.9%。 相似文献
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R. M. Brennan 《The Journal of Horticultural Science and Biotechnology》2013,88(5):607-612
Pot plants of 12 black currant genotypes were assessed in frost simulation chambers for their tolerance of spring frosts during the flowering period. The most tolerant were some genotypes from the UK and Scandinavia. The inheritance of tolerance may be complex rather than simply additive. The results indicate that physiological frost hardiness at flowering is needed as well as later flowering, particularly when breeding for early ripening cultivars. 相似文献
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无核葡萄离体快繁技术研究 总被引:1,自引:0,他引:1
近年来,随着人们生活水平的提高,无核葡萄已成为消费的重要趋势和发展方向。但在生产中无核葡萄的主要繁殖方式是扦插,繁殖系数较低,同时生产的苗木常携带病毒,致使无核葡萄质量较差,产量较低,严重阻碍了无核葡萄的种植与推广[1]。通过组织培养进行葡萄离体快繁,已有许多研究报道[2-3],但对无核葡萄品种缺乏系统研究。本研究以目前国内主栽的15个无核葡萄品种为材料,旨在建立无核葡萄离体快繁体系,摸索适合各个无核葡萄品种成苗的适宜培养基,为苗木工厂化生产提供依据。1材料与方法1.1材料试验于2002—2004年在新疆葡萄瓜果开发研究中心及西… 相似文献
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