摘要
以紫鹃、黄金茶1号、黄金茶2号等11个茶树品种和福鼎大白(CK)为研究对象,在湘西土家族苗族自治州农业科学研究院基地资源圃内进行自然干旱条件下不同茶树品种幼苗性状的比较试验。结果表明:从叶片症状来看,槠叶齐、金萱、紫鹃、碧香早、黄金茶1号的叶片晒伤程度较轻,受损部位主要体现在成熟叶的叶尖,江华苦茶的叶片受旱程度最重,其叶片和枝条干枯脱落,叶片大面积干枯变褐;江华苦茶、迎霜、紫娟、黄金茶2号、城步峒茶、黄金茶1号的叶片晒伤率显著高于福鼎大白,其中黄金茶1号、黄金茶2号的发芽数比福鼎大白多;11个供试茶树品种的茎叶普遍比福鼎大白粗厚;江华苦茶、黄金茶2号、城步峒茶、紫娟的株高低于福鼎大白;城步峒茶、桃源大叶等6个品种叶面积显著大于福鼎大白;受旱程度较重的江华苦茶和迎霜的叶形指数较大。综合来看,槠叶齐、金萱、碧香早、黄金茶1号抗旱性较强,紫娟、政和大白、桃源大叶、黄金茶2号次之,而城步峒茶、迎霜、江华苦茶晒伤叶片数较多、植株矮化、发芽较少、抗旱性相对较弱,且伏旱后秋季开花较多。
In this study,12 tea varieties including Zijuan,Huangjincha 1,Huangjincha 2,etc.were selected to compare their seedling traits under natural drought conditions in the base resource garden of Xiangxi Academy of Agricultural Sciences,using Fuding Dabai as the control.The results showed that in terms of leaf symptoms,the leaves of Zhuyeqi,Jinxuan,Zijuan,Bixiangzao and Huangjincha 1 were slightly sunburned,mainly in the tip of mature leaves;the leaves of Jianghua-Kucha were sunburned the most,its leaf and branch dried up and fell off,leaf mostly dried to brown.Compared with Fuding Dabai,Jianghua-Kucha,Yingshuang,Zijuan,Huangjincha 2,Chengbu-Dongcha and Huangjincha 1 had relatively high sunburn rate in leaves;Huangjincha 1 and Huangjincha 2 had more germination;11 test tea varieties all had thicker stem and leaf;Jianghua-Kucha,Huangjincha 2,Chengbu-Dongcha and Zijuan had lowerplant height;six varieties including Chengbu-Dongcha,Taoyuandaye,etc.had larger leaf area;suffering from severe drought,Jianghua-Kucha,and Yingshuang had higher leaf shape index.On the whole,Zhuyeqi,Jinxuan,Bixiangzao and Huangjincha 1 had stronger drought resistance,followed by Zijuan,Zhenghe Dabai,Taoyuandaye,Huangjincha 2.However,Chengbu-Dongcha,Yingshuang and Jianghua-Kucha had moresunburned leaves,lower plant height,less germination and weaker drought resistance as well as more flowers in autumn after drought.
作者
田建华
彭云
焦海珍
胡梦芹
龙代彬
TIAN Jian-hua;PENG Yun;JIAO Hai-zhen;HU Meng-qin;LONG Dai-bin(Xiangxi Academy of Agricultural Sciences,Jishou 416000,PRC)
出处
《湖南农业科学》
2022年第3期18-21,共4页
Hunan Agricultural Sciences
关键词
茶树品种
幼苗
耐旱性
湘西州
tea varieties
seedling
drought resistance
Xiangxi Autonomous Prefecture
作者简介
田建华(1973-),女,湖南龙山县人,农艺师,主要从事茶树栽培管理、茶叶加工、培训推广等工作。
