共查询到19条相似文献,搜索用时 62 毫秒
1.
2.
3.
4.
5.
6.
7.
8.
德国选育的欧洲甜樱桃矮化砧木 总被引:4,自引:0,他引:4
欧洲甜樱桃 ( Prunus avium)近 2 0 0~ 3 0 0年扩散到世界各温带国家。欧洲和美洲的许多国家曾用马扎德 ( Mazzard)和马哈利 ( Mahaleb)作砧木 ,嫁接的欧洲甜樱桃树体高大 ,进入盛果期需 6~ 7年。随着各国劳动力价格的升高 ,选育矮化、早结果的欧洲甜樱桃砧木 ,成为世界各国欧洲甜樱桃育种家的共识。从二十世纪 60年代起 ,英、德、意、法、比利时、美、波兰、前苏联等国把选育欧洲甜樱桃的矮化砧木列入研究计划并付诸实施。英国东茂林试验站最早推出欧洲甜樱桃半矮化砧木考特 ( Colt) ,考特已在生产中得到广泛应用。 德国是世界上最… 相似文献
9.
厚皮甜瓜试管苗生根技术研究 总被引:6,自引:0,他引:6
以厚皮甜瓜品种“古拉巴”试管苗为材料研究了不同培养因子对其生根的影响以及瓶外直接扦插生根的可行性。结果表明:古拉巴试管苗生根较难,即使在较适宜的1/2MS+IAA0.5mg/L和1/2MS+IBA0.1mg/L培养基上,其生根率也不足80%,但如将转接的材料先经暗处理3天,则在同样培养基上生根率可达90%以上。瓶外直接扦插也显示出较好的生根效果,在精心管理并合理使用生长调节剂的条件下,生根率达81.4%-88.3%,与组培诱导的结果相近,且成本低,易于移栽成活。 相似文献
10.
枣试管苗生根及移栽技术 总被引:7,自引:0,他引:7
枣试管苗生根及移栽技术*杜学梅郭黄萍赵玉军贺小红朱文勇(山西省果树研究所,太谷030800在我国枣树一直沿用分蘖繁殖。近年来,虽采用嫁接繁殖苗木,但育苗速度远不及苹果、梨等果树快。为了加快枣优良品种繁苗速度,我们于1993—1994年进行了枣试管苗生... 相似文献
11.
12.
13.
14.
15.
大樱桃简易大棚栽培技术 总被引:1,自引:0,他引:1
采用水泥立柱,竹木结构连栋拱形大棚,进行大樱桃保护地栽培取得了成功。主栽品种为红灯,三年生树666.7m^2产693.5kg,四年生树产量达1320.5kg。 相似文献
16.
In composite (scion–rootstock) dwarfing fruit trees, an overgrowth at the graft union is often observed, the severity of which is correlated with degree of dwarfing. The graft union of dwarfing sweet cherry (Prunus avium L.) rootstocks may limit soluble sugar transport or starch mobilization, leading to localized accumulation. Soluble sugars and starch were measured in the tissues surrounding the graft union of young ‘Rainier’ (2002) and ‘Lapins’ (2003) sweet cherry trees on ‘Gisela 5’ (‘Gi 5’; dwarfing) and ‘Colt’ (vigorous) rootstocks. Separate rootstock shank, rootstock, graft union, and scion tissues were analyzed for both starch and soluble sugar content throughout the growing season in both years. Starch concentrations did not vary among locations within the graft union for ‘Rainier’ on either the dwarfing or vigorous rootstock, or for ‘Lapins’ on the dwarfing stock. However, for ‘Lapins’ on ‘Colt’, starch was highest in the rootstock shank and declined vertically (rootstock shank ? rootstock > union > scion). Soluble sugar concentrations were generally similar to or higher in scions on ‘Gi 5’ than on ‘Colt’, and were similar to or lower in the rootstock and rootstock shank on ‘Gi 5’ than on ‘Colt’. Results suggest that rootstock has a significant effect of localized accumulations of carbohydrates above and within the graft union of ‘Gi 5’ and below the graft union of ‘Colt’. 相似文献
17.
18.