共查询到20条相似文献，搜索用时 484 毫秒
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野生花卉是一种自然生长状态下,始终生活在原产地的一种观赏性植物,野生花卉自身具有较强的观赏价值,而且由于具有原产地自然生长特点,在成长中具有抗逆性强,栽培简单以及管理便捷等方面的优势.通过近年来的野生花卉资源利用情况来看,在园林绿化中的应用频率越来越高.本文主要对野生花卉资源的特点,在园林绿化中的应用以及具体的应用原则... 相似文献
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野生花卉能够丰富园林植物的多样性,有利于营造地带性植物景观。笔者实地调查了唐山地区范围内野生花卉资源,从引种的20种野生花卉中驯化栽培10种观赏价值高、适应性强的品种,观察引种后的生长情况和观赏特性,总结引种栽培的管理要点。 相似文献
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黑龙江省早春野生花卉种质资源引种观察 总被引：1，自引：0，他引：1
引种驯化栽培早春野生花卉２９种，其中木本１４种，草本１５种。主要特点是耐寒性强，休眼期能耐－４０℃低温，幼芽萌动期耐－１０～－１５℃，花期耐０～－８℃，甚至花朵可迎雪盛开，寒冻红果不落。这些早春野生花卉从３月中旬开始陆续进入花期，花型多样，花色丰富，可作为城市、农村绿化的主体材料。 相似文献
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通过人为改变环境条件和采取一些特殊的栽培管理方法,可以使一些花卉提前开花、延迟开花或延长花期,以满足不同时期花卉的需求:下面简单介绍几种花卉的花期控制方法: 相似文献
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对世界五大切花唐菖蒲、月季、菊花、香石竹和非洲菊的形态特征与生态习性进行了介绍,从繁殖方法、栽培管理、花期调控、病虫害防治以及商品化处理等方面阐述了其保护地商品化生产栽培。 相似文献
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牡丹是我国特有的木本名贵花卉,它雍容华贵、端妍富丽,深受国人喜爱。但由于牡丹的花期短,大大降低了其观赏时间。牡丹的促成栽培方法可以有效增加在同一生长季内牡丹的开花次数,缓解北方地区冬季无牡丹可赏的状况,同时这种促成栽培方法也可以达到牡丹开花数量大,品种多,时间准的要求,丰富各种节日的节日用花。 相似文献
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长沙市烈士公园花境植物调查与分析 总被引：1，自引：0，他引：1
花境是模拟各种野生花卉自然交错生长的状态,经过艺术提炼,巧妙灵活地运用各种露地宿根花卉、球根花卉、1年生或2年生草本花卉及花灌木等园林植物,设计成宽窄不一的曲线式、直线式或自然式花带。作者通过对烈士公园的调查,了解到园内花境植物的种类、应用形式,并拍摄实地照片,发现一些问题,并提出相应的解决对策。 相似文献
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以早熟温州蜜柑为试材,连续4a(2008～2011)调查早熟温州蜜柑的开花结果习性,对其开花坐果动态影响因素进行研究。结果表明:各类结果母枝的开花量和坐果率有明显差异,早秋梢结果母枝、夏梢结果母枝和晚秋梢结果母枝的效果之间,有叶花的坐果率与有叶花的坐果量之间存在显著差异水平,而晚秋梢结果母枝与春梢结果母枝的效果之间不存在显著差异水平;1a有4次落花落果高峰期:第1次发生在5月13～27日;第2次发生在6月9～16日;第3次发生在8月11～18日;第4次发生在10月6～13日;在结果母梢上不同营养梢比例直接影响坐果率,营养梢的比例越小,其坐果率越高;栽植密度大或蛆花率大的果园,坐果率都较低;不同结果母枝长度能够影响坐果率;有叶花枝的叶片数量影响坐果率,4片叶的坐果率最高;留梢的位置在母枝的顶端和控制营养梢的数量越大,其效果越明显;建议生产上提高树体有叶花的比例和调节营养梢的发生量,从而缓解梢果矛盾和提高坐果率。 相似文献
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The main factor affecting floral initiation of Geraldton Wax-Flower (Chamelaucium uncinatum) is the photoperiod, while temperature is the major factor affecting flower development. Four weeks of short days (SD) are generally required for obtaining full flowering. The number of flowers produced per plant increases with increasing the number of SD. Under mild temperatures of (day/night), plants initiated flowers even in long days (LD). However, fewer flowers were produced and on higher nodes as compared to SD plants. Chlormequat promoted flowering under prevailing summer conditions of high temperatures and LD. Under prevailing autumn conditions favourable for flower initiation, LD treatment or weekly sprays with gibberellic acid (GA) reduced the number of flowers per plant. Combined treatment of LD and GA reduced both the flowering percentage and the number of flowers per plant. Discontinuing the LD or the GA treatments caused a resumption of full flower initiation. 相似文献
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Flowering time is an important factor determining early yield in tomato. However, the quantitative trait loci (QTLs) controlling flowering time and their relation to other QTLs for morphological and physiological traits have not been well studied. The aim of this study was to map the chromosomal regions controlling days to flowering (DTF) concurrently with other traits, such as the number of leaves preceding the first inflorescence (LN), length of the largest leaf (LL), number of lateral shoots (LS), fresh weight (FRW) and plant height (PH). This was undertaken using an inbred backcross population derived from a cross between the commercial cultivar Solanum lycopersicum cv. ‘M570018’ and its close wild relative S. pimpinellifolium (PI124039). S. pimpinellifolium flowers earlier than the cultivated tomato. Plants were grown in spring and summer. Composite interval mapping detected 16 QTLs for the six traits evaluated. These QTLs explained 10–42% of the individual phenotypic variation. QTLs detected in spring generally did not differ from those detected in summer. In chromosome 1, the DTF QTL was co-located with the QTLs for LL, LS and FRW, while in chromosome 3 it was co-located with the QTLs for LN, FRW (summer) and PH. One DTF QTL that was detected in chromosome 3 and conferred by the S. pimpinellifolium allele hastens flowering. The co-location of the DTF QTL with the LN QTL suggested that the DTF QTL in chromosome 3 controls the period from the vegetative to reproductive phase. Co-locations of DTF QTLs with the other traits might be pleiotropic effects of a single gene or cluster of genes via physiological relationships among traits because they were found to be highly significantly correlated. 相似文献