李彥榮 姚天明 伏建增 趙亞峰 于智國(guó)



摘要:為研究金絲皇菊枝條扦插生根基質(zhì)中添加生長(zhǎng)激素IBA和NAA促進(jìn)生根的最佳復(fù)配濃度和浸泡時(shí)間。設(shè)置IBA 0、200、400、600 mg/L,NAA 0、100、200、300 mg/L,浸泡時(shí)間0.5、1.0、1.5、2.0 h的L16(43)三因素四水平正交試驗(yàn)。結(jié)果表明IBA和NAA單用時(shí),金絲皇菊枝條扦插的平均根系效果指數(shù)分別為2.28和1.53。IBA 200 mg/L和NAA 200 mg/L復(fù)配液浸泡金絲皇菊枝條2.0 h,其根系效果指數(shù)為3.90,生根效果最好;IBA 600 mg/L、NAA300 mg/L復(fù)配液浸泡金絲皇菊0.5 h,對(duì)生根有一定的抑制作用,其他處理較清水浸泡0.5 h對(duì)生根均有一定的促進(jìn)作用。IBA 200 mg/L和NAA 200 mg/L復(fù)配,浸泡2 h,為最佳復(fù)配濃度和浸泡時(shí)間,過(guò)大的復(fù)配濃度對(duì)生根有抑制作用。
關(guān)鍵詞:金絲皇菊;IBA;NAA;生根
中圖分類號(hào):S682.11 ? ? ? ? ? ? ?文獻(xiàn)標(biāo)志碼:A ? ? ? ? ? ? ?文章編號(hào):2097-2172(2022)02-0171-04
doi:10.3969/j.issn.2097-2172.2022.02.015
Effects of IBA and NAA Combinations with Different Concentrations on
Rooting of Golden Silk Chrysanthemum Cuttings
LI Yanrong,YAO Tianming, FU Jianzeng, ZHAO Yafeng, YU Zhiguo
(Tianshui Agricultural School, Qingshui Gansu 741400, China)
Abstract: To study the best compound concentration and soaking time of IBA and NAA growth hormones on the rooting effect of of golden silk chrysanthemum cuttings, through athree factor four level orthogonal test L16 ?(43), IBA was set at 0, 200, 400 and 600 mg/L, NAA was set at 0, 100, 200 and 300 mg/L, and the soaking time was set at 0.5, 1, 1.5 and 2 h. It was found that when IBA and NAA were used alone, and the average root effect indexes of golden silk chrysanthemum cuttings were 2.28 and 1.53, respectively. Soaking the golden silk chrysanthemum cuttings with IBA 200 mg/L and NAA 200 mg/L compound solution for 2 h showed the the root effect index of 3.90 which was considered as the best for rooting. Soaking golden silk chrysanthemum cuttings in IBA 600 mg/L and NAA 300 mg/L compound solution for 0.5 h showed a certain inhibitory effect on rooting, while all other treatments have a certain promoting effect on rooting compared with the control, soaking in water for 0.5 h. IBA 200 mg/L and NAA 200 mg/L compound solution soaked for 2 h was the best compound concentrations and soaking time. Excessive compound concentrations could inhibit rooting.
Key words: Golden silk chrysanthemum; IBA; NAA; Rooting
金絲皇菊為菊科植物菊花(Chrysanthemum morifolium Ramat.)的一個(gè)品種,為茶、藥兼用菊。金絲皇菊味甘苦,性微寒,有散風(fēng)清熱、清肝明目和解毒消炎等作用,對(duì)口干、火旺、目澀,或由風(fēng)、寒、濕引起的肢體疼痛、麻木的疾病均有一定的療效[1 ]。用金絲皇菊做茶,相較于其他品種,具有花朵大、花瓣黃色純正,沖泡后花色花姿漂亮、不易散瓣、茶湯顏色好的觀感和香、甜、潤(rùn)的口感,并富含黃酮類、氨基酸及微量元素等活性成分,營(yíng)養(yǎng)價(jià)值極高。生產(chǎn)上大多采用母株產(chǎn)生的腳芽(根蘗)和枝條作為繁殖材料,腳芽已長(zhǎng)出根系,具有容易成活、繁殖簡(jiǎn)單的效果,但其攜帶由母株感染的病蟲(chóng)害較多,生長(zhǎng)羸弱,難以培育優(yōu)質(zhì)壯苗。枝條扦插繁殖能有效克服腳芽繁殖的缺點(diǎn),容易培育優(yōu)質(zhì)壯苗,但因插穗的充實(shí)程度、扦插基質(zhì)的配制、外源激素種類、處理濃度和處理時(shí)間的不同,生根效果差異較大。……