馬尚 李雨朦 王富河



摘要 為了提高翅柃種子的發芽率,以翅柃種子為材料,通過采用不同外源激素浸種,以探索促進翅柃種子萌發的方法。對翅柃種子的表型性狀進行測定;用TTC染色法測定種子生活力;選用不同濃度(50、100、150、200 mg/L)的赤霉素(GA3)、吲哚乙酸(IAA)、萘乙酸(NAA)分別浸種1、2 h,對翅柃種子進行激素浸種處理,以清水浸種1、2 h為對照,在25? ℃恒溫條件下觀測翅柃種子的萌發情況。結果表明:翅柃種子呈三角形或不規則菱形,長0.8~1.0 mm,寬0.5~1.0 mm;翅柃種子生活力很低,僅為8%;翅柃種子經不同濃度激素處理后發芽率、發芽勢、發芽時間有顯著差異,NAA 150 mg/L浸種2 h發芽率7%,GA3 100 mg/L浸種時間1 h發芽率2%,IAA 200 mg/L浸種1 h發芽率4%,其余處理組合發芽率較低或均無發芽種粒。
關鍵詞 翅柃;種子發芽;外源激素;發芽率
中圖分類號 S722.3? 文獻標識碼 A? 文章編號 0517-6611(2024)11-0101-05
doi:10.3969/j.issn.0517-6611.2024.11.022
開放科學(資源服務)標識碼(OSID):
Effects of Different Exogenous Hormone Treatments on Seed Germination of Eurya alata
MA Shang1,LI Yu-meng2,WANG Fu-he2
(1. Forestry Bureau of Pingqiao District, Xinyang, Henan 464100;2.Xinyang Agriculture and Forestry College,Xinyang,Henan 464100)
Abstract In order to improve the germination rate of Eurya alata seeds, we used different exogenous hormones to immerse the seeds in order to explore ways to promote the germination of Eurya alata seeds. The seed viability of Eurya alata was determined by TTC staining, and different concentrations of gibberellin (GA3),indole-3-acetic acid (IAA) and naphthylacetic acid (NAA) were used, seeds were soaked in water for 1 h and 2 h, respectively, and the germination of Eurya alata seeds was observed at 25 ℃. The results showed that the seeds were triangular or irregular rhombus, 0.8-1.0 mm in length and 0.5-1.0 mm in width.The germination percentage, germination potential and germination time of Eurya alata seeds treated with different concentrations of hormones were significantly different. The germination percentage of seeds treated with NAA 150 mg/L for 2 h was 7%, and that of seeds treated with GA3 100 mg/L for 1 h was 2%, the germination rate of seeds soaked with IAA 200 mg/L for 1 h was 4%, and other treatments have lower germination rates or no seeds germinated.
Key words Eurya alata;Seed germination;Exogenous hormones;Germination rate
基金項目 中央財政林業科技推廣項目(GTH〔2020〕15號)。
作者簡介 馬尚(1988—),男,河南信陽人,工程師,從事園林、經濟林栽培、林業生產技術推廣研究。
收稿日期 2023-08-17
翅柃(Eurya alata)為山茶科(Theaceae)柃屬(Eurya Thunb),常綠灌木或小喬木,雌雄異株,鮮葉可以制作成新型的信陽茶飲品,其功效神奇,但產量小,口感獨特,因而價格昂貴,市場少見[1]。
信陽大茶溝當地茶農用翅柃古茶樹的鮮嫩葉制作綠茶,當地群眾稱之為三棱枝茶、神仙茶,具有鮮濃、爽口、甜醇、芳香的口感特征,是不同于現有信陽茶的新品種“茶”,主要分布于信陽市浉河區境內雞公山大茶溝[2]。信陽大茶溝翅柃古茶樹的發現,填補了河南省沒有古茶樹的空白[3]?!?br>