頁籤選單縮合
題名 | 生長素對銀柳扦插苗生長之影響=Effect of Auxin to Cutting Propagation of Cat-tail Willow |
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作者 | 黃秀真; 張允瓊; Huang, Shiou-jen; Chang, Yung-chiung; |
期刊 | 宜蘭大學生物資源學刊 |
出版日期 | 20121200 |
卷期 | 8:2 2012.12[民101.12] |
頁次 | 頁13-26 |
分類號 | 435.429 |
語文 | chi |
關鍵詞 | 銀柳; 扦插; 繁殖; 健康種苗; Cat-tail willow; Cutting; Propagation; Cutting position; Rooting agents; |
中文摘要 | 銀柳仟插苗生產,採取銀柳‘上海種’一年生植株尚未萌芽之枝條,將枝條分為上、中、下三段,每段插穗均為20公分為基準。插穗基部分別以不同濃度0(對照組)、500、2,000、5,000、10,000 ppm等不同濃度NAA和IBA粉劑處理。試驗結果顯示,9種濃度中,以500ppm NAA萌芽數最多,萌芽率較高,而IBA則以2,000 ppm和5,000 ppm較佳,10,000 ppm NAA和IBA反而下降,但有發根劑處理者均比對照組萌芽時間較早且萌芽數較多。分析銀柳枝條中澱粉含量,結果以500 ppm NAA處理組最高,但500 ppm IBA處理組枝條之澱粉含量最低;可溶性糖和還原糖的含量則以2,000 ppm IBA及5,000 ppm IBA含量較高,且IBA各處理均高於NAA和對照組處理。另外不同部位枝條的萌芽率、萌芽數、莖寬、葉面積、發根數、根長、地上部和地下部鮮重、乾重均以枝條下段最高,其次為中段,上段表現最差。但平均芽長和平均葉片數則以中段最長,上段最短。因此銀柳扦插時,選取枝條中、下段部位作為插穗,以2,000 ppm IBA作為發根劑,所生產之扦插苗生長狀況較佳,可加速種苗生產並明顯提升種苗品質,有利於建立銀柳健康種苗生產系統。 |
英文摘要 | The annual shoots of 'Shanghai' cat-tail willow were chosen and divided into three sections of upper, middle and lower cuttings for efficiency evaluation on shoot position of cutting propagation. The cutting length for experiment was 20 cm. Nine treatments were designed which were NAA (500, 2,000, 5,000, and 10,000 ppm), IBA (500, 2,000, 5,000, and 10,000 ppm), and control (0 ppm). The results illustrated that the bud sprouting number and ratio were higher in NAA 500 ppm than in the other treatments. Concentrations of IBA 2,000 and 5,000 ppm exhibited the better bud sprouting situation, but the high concentration of 10,000 ppm in both NAA and IBA obviously decreased the bud sprouting number. Nevertheless, cuttings treated with auxin displayed better sprouting capabilities than the control. The starch content of the cutting seedling was highest in 500 ppm NAA and lowest in 500 ppm IBA. The contents of soluble carbohydrate and reduction sugar were higher in 2,000 and 5,000 ppm IBA than in other treatments, and seedlings treated with IBA displayed higher soluble carbohydrate and reduction sugar content than those of treating with NAA and control. Cuttings from the lower section of the shoot exhibited the higher sprouting and rooting ratio, stem diameter, leaf area, root number, shoot fresh and dry weight than those from the upper and middle ones. On the contrary, the length of shoots and the number of leaves were higher in the middle sections than the others. Consequently, cuttings from the middle and lower sections of the shoots display the better growth vigor than that from the upper ones, which offers an efficiency cutting propagation model for 'Shanghai' cat-tail willow productions. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。