推荐回答(1个)
美国改良红枫,槭树属,高达15米,树型直立向上,呈椭圆形,春季新叶泛红,成熟叶为翠绿色,秋季叶色由黄红色渐变为红色,色彩饱和度高,挂色持续时间长。
中国的辽宁以南、广东以北均为适宜的生长区域,各种土壤均可。
美国改良红枫有移栽容易、成活率高、观赏价值大、对城市环境适应性特别强等诸多优势,是城市绿化中的庭荫树和行道树之王;是替代法国梧桐、杂交马褂木、香樟树等传统城市绿化景观树的换代树种。
美国改良红枫是在美国红枫(即红花槭)的基础上,经过杂交、自然变异等科学方法选育而育成的一些新的改良红枫园艺品种,目前达四十余种。美国改良红枫无法用种子繁殖,必须通过无性方式(如嫁接、组培)繁殖。
普通美国红枫是指红花槭的籽播实生苗,辨别要点是:
1.籽播实生苗;
2.叶子的形状、大小、颜色不统一,苗之间有许多差异,秋色枯黄的比例较高;
3.叶缘毛刺明显。
美国改良红枫的共同辨别要点是:
1.无性繁殖苗;
2.叶子的形状、大小、颜色统一整齐,苗之间无差异,秋色也100%一致。
美国改良红枫
美国改良红枫,槭属槭树科,是由北美红枫和中国红枫杂交并进行基因改良的优秀品种,是高大落叶乔木,高度20-25M,树冠椭圆,冠幅8-12M。名称: 美国改良红枫别名: 红花槭、北方红枫、北美红枫、沼泽枫、加拿大红枫、红糖槭、猩红枫英文名: Red maple,Scarlet maple 学名: Acer rubrum 科属: 槭树科槭树属类别: 落叶乔木类。
美国改良红枫 - 外形特征
耐寒性强,耐-35℃,适应中性及微酸或微碱性土壤。生长速度较快,年平均生长80cm-120cm(视水土及土壤肥力)。春天开花,有红色花穗,种子为羽翅状果、颜色浅红。树叶成掌状,长约5-10cm, 春天幼芽浅红色,夏季碧绿,秋天为鲜红色,挂色期长、落叶晚。树干笔直,成深褐色,材质坚硬、纹理好。
美国改良红枫 - 优点特色
健康的美国改良红枫基本上不受病虫害的影响,其寿命为100年左右。改良红枫系列需要无性方式繁殖(如组培、 嫁接、扦插)繁殖。美国改良红枫是发达国家道路绿化的优选树种,日本和韩国每年大量从美国进口。从生物学的角度来看,韩国的枫树大都是美国进口的改良红枫,而这种改良红枫则是由北美红枫和中国红枫杂交并进行基因改良而成的优秀品种。如此说来,韩国那些吸引眼球的红枫,原来有着美国和中国的“血统”。该树种是休闲公园、生活小区、医院、和道路绿化美化的最佳选择。
美国红枫改良品种的秋色红艳醒目,叶色有荧光,极具颠覆性。品种纯正才能确保其秋色红艳。华石红枫科技有限公司经过试种证明非常适应本地种植而且红叶效果最好的品种有‘红酒佳人’、‘卓越’、‘ 夕阳红枫’、‘十月光辉’、‘秋日烈焰’、‘秋焰槭’、‘太阳谷’、‘俏江南’、‘酒红’、‘夏日红’等。国内许多种植者无法看到美国红枫的美丽红叶,实际上是误把普通籽播实生苗认作为改良红枫之故。
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