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珠芽魔芋组织诱导快速繁殖技术研究

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以珠芽魔芋球茎为外植体,开展组织诱导快速繁殖技术研究,以期为珠芽魔芋的规模化种植提供技术支撑。结果表明:最佳萌发培养基为MS+0。5 mg/L 6-BA+0。1 mg/L 2,4-D+30 g/L蔗糖+5 g/L琼脂,萌发率达 100%;最佳愈伤组织诱导培养基为MS+2。0 mg/L 6-BA+0。5 mg/L GA3+30 g/L蔗糖+5 g/L琼脂,叶片和叶柄形成愈伤组织的诱导率分别为 99。17%、92。50%;最佳不定芽诱导培养基为MS+1。0 mg/L 6-BA+0。4 mg/L NAA+25 g/L蔗糖+5 g/L琼脂,叶片和叶柄不定芽诱导率分别为 94。17%、65。83%,单位愈伤组织分化芽数分别为3、1。87个;最佳生根培养基为1/2 MS+0。4 mg/L NAA+0。2 mg/L IBA+0。5 g/L碳粉+20 g/L蔗糖+5 g/L琼脂,生根率为 97。50%,平均生根数为 3。0 条,平均根长为 3。0 cm;炼苗 10 d后,移栽到配比为表土∶椰砖营养土∶黑沙土=1∶2∶1 的混合基质中,移栽成活率达到 91。7%。
Tissue Culture for Rapid Propagation of Amorphophallus bulbifer
This study used the bulbs of Amorphophallus bulbifer as the explants in tissue culture for rapid propagation,aiming to provide technical support for the large-scale cultivation of this plant.The optimal medium for inducing emergence was MS+0.5 mg/L 6-BA+0.1 mg/L 2,4-D+30 g/L sucrose+5 g/L agar,in which the emergence rate reached 100%.The optimal medium for inducing callus was MS+2.0 mg/L 6-BA+0.5 mg/L GA3+30 g/L sucrose+5 g/L agar,in which the rates of calluses differentiated from leaves and petioles were 99.17%and 92.50%,respectively.The optimal medium for inducing adventitious buds was MS+1.0 mg/L 6-BA+0.4 mg/L NAA+25 g/L sucrose+5 g/L agar,in which the rates of adventitious buds differentiated from leaves and petioles were 94.17%and 65.83%,respectively,and 3 buds and 1.87 buds were differentiated from each callus,respectively.The optimal medium for rooting was 1/2 MS+0.4 mg/L NAA+0.2 mg/L IBA+0.5 g/L activated carbon+20 g/L sucrose+5 g/L agar,in which the rooting rate was 97.50%and the average root number and length were 3.0 and 3.0 cm,respectively.After 10 days of acclimatization,the survival rate of transplanted seedlings in the mixed matrix(topsoil∶crushed coconut fiber-containing nutrient soil∶black sandy soil=1∶2∶1,volume ratio)was 91.7%.

Amorphophallus bulbifertissue inductiontissue culturerapid propagation

高燕、姜艳、董蓉娇、贾敏、姚志军、姚春、周侯光

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云南省德宏热带农业科学研究所,云南 瑞丽 678600

云南省农业科学院热带亚热带经济作物研究所,云南 保山 678000

珠芽魔芋 组织诱导 组织培养 快速繁殖

德宏州科技创新团队培育专项云南省德宏热带农业科学研究所科研基本业务专项云南省创新科技人才与平台计划专项

20221RC010DTARI-2022-12202105AD160013

2024

湖南农业科学
湖南省农业科学院 湖南省科技厅星火促进会 湖南农业大学

湖南农业科学

影响因子:0.415
ISSN:1006-060X
年,卷(期):2024.(7)