~(60)Co-γ辐照对越南油茶种子发芽及幼苗形态指标的影响
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摘要
为了研究~(60)Co-γ辐照对越南油茶Camelliadrupifera种子发芽和表观形态指标的影响,选取越南油茶璠龙3号‘Fanglong 3’和璠龙5号‘Fanglong 5’种子分别进行0、40 Gy、50 Gy、60 Gy、70 Gy ~(60)Co-γ辐照并测定种子发芽率和出苗率以及幼苗生长表观形态指标(苗高、地径、叶长、叶宽、叶面积)。结果表明,~(60)Co-γ辐照对越南油茶种子发芽率影响小,对其出苗率、苗高、地径以及叶片生长有明显抑制作用,尤其是高剂量(60 Gy、70 Gy)辐照对越南油茶种子损伤较大,严重影响其出苗及幼苗生长。高剂量辐照明显延迟越南油茶的出苗时间,抑制幼苗生长,导致苗木瘦弱、生长缓慢,植株呈现矮化现象。高剂量亦抑制越南油茶叶片生长,导致叶片瘦小,生长缓慢。璠龙3号种子~(60)Co-γ辐照半致死剂量为64 Gy,璠龙5号为57 Gy。
In order to study the effect of ~(60)Co-γ irradiation on seed germination and seedling growth of Camellia drupifera, seeds from two excellent C. drupifera cultivars were treated by different doses of ~(60)Co-γ irradiation(0, 40 Gy, 50 Gy, 60 Gy and 70 Gy). The germination rate, survival rate and morphological indices including height, ground diameter, leaf length, leaf width and leaf area of C.drupifera were measured. Results showed that ~(60)Co-γ irradiation had a small effect on germination rate, but inhibited survival rate and the growth of height, ground diameter, and leaf. High doses irradiation(60 Gy and 70 Gy) could cause serious damage to the seeds, had a strong impact on seed germination and seedlings growth. With the treatment of high doses of irradiation, the seedlings growth were inhibited and the seedlings were weak and thin, seedling plants were dwarfed compared with the control group. The leaf growth was also inhibited under high does irradiation. Under ~(60)Co-γirradiation, the half lethal dose of ‘Fanlong 3' was 64 Gy, and ‘Fanlong 5' was 57 Gy.
In order to study the effect of ~(60)Co-γ irradiation on seed germination and seedling growth of Camellia drupifera, seeds from two excellent C. drupifera cultivars were treated by different doses of ~(60)Co-γ irradiation(0, 40 Gy, 50 Gy, 60 Gy and 70 Gy). The germination rate, survival rate and morphological indices including height, ground diameter, leaf length, leaf width and leaf area of C.drupifera were measured. Results showed that ~(60)Co-γ irradiation had a small effect on germination rate, but inhibited survival rate and the growth of height, ground diameter, and leaf. High doses irradiation(60 Gy and 70 Gy) could cause serious damage to the seeds, had a strong impact on seed germination and seedlings growth. With the treatment of high doses of irradiation, the seedlings growth were inhibited and the seedlings were weak and thin, seedling plants were dwarfed compared with the control group. The leaf growth was also inhibited under high does irradiation. Under ~(60)Co-γirradiation, the half lethal dose of ‘Fanlong 3' was 64 Gy, and ‘Fanlong 5' was 57 Gy.
引文
[1]阮文越,温强,徐林初,徐立安.越南国内油茶研究利用现状与良种化探讨[J].经济林研究,2013,31(6):171-175.
[2]高尚士.国内外辐射育种的研究[J].盐碱地利用,1994(1):35-37.
[3]高健,卢惠萍.花卉辐射诱变研究进展(综述)[J].安徽农业大学学报,2000,27(3):228-230.
[4]喻吉生,宋富根,欧阳享泱.辐照在农作物新品种选育上的应用研究[J].现代农业科技,2009(22):61.
[5]谢治芳,洪佩英,朱干波.辐射诱变板栗新品种-农大一号高产稳产性状分析[J].华南农业大学学报,1993,14(3):120-124.
[6]聂浪,查钱慧,黄永芳.60Co-γ辐照对越南油茶种子发芽及幼苗生长的影响[J].林业与环境科学,2017,33(1):72-76.
[7]查钱慧,金俊,杨亚慧.60Co-γ辐照对3株南山茶种子发芽及幼苗生长的影响[J].河南农业科学,2015,44(10):61-64,72.
[8]陶巧静,臧丽丽,刘蓉,饶慧云,吴月燕,周伟军.137Cs-γ辐射对葡萄种子发芽和幼苗生长及叶绿素荧光特性的影响[J].核农学报,2015,29(4):761-768.
[9]朱宗文,查丁石,朱为民,郭世龙荣,朱龙英.60Co-γ射线辐射对番茄种子萌发及早期幼苗生长的影响[J].种子,2010,29(8):15-18.
[10]原蒙蒙,李妍,王献.60Co-γ辐射对紫薇种子生物学效应的影响[J].河南农业科学,2015,44(1):101-104.
[11]李玉明,杨世梅,纪海波,方春媛,潘从祥,陈年来.60Co-γ辐射对西瓜种子萌发和幼苗生长的效应[J].西北农业学报,2013,22(3):115-120.
[12]王文恩,包满珠,张俊卫.60Co-γ射线对日本结缕草干种子的辐射效应研究[J].草业科学,2009,26(5):155-160.
[2]高尚士.国内外辐射育种的研究[J].盐碱地利用,1994(1):35-37.
[3]高健,卢惠萍.花卉辐射诱变研究进展(综述)[J].安徽农业大学学报,2000,27(3):228-230.
[4]喻吉生,宋富根,欧阳享泱.辐照在农作物新品种选育上的应用研究[J].现代农业科技,2009(22):61.
[5]谢治芳,洪佩英,朱干波.辐射诱变板栗新品种-农大一号高产稳产性状分析[J].华南农业大学学报,1993,14(3):120-124.
[6]聂浪,查钱慧,黄永芳.60Co-γ辐照对越南油茶种子发芽及幼苗生长的影响[J].林业与环境科学,2017,33(1):72-76.
[7]查钱慧,金俊,杨亚慧.60Co-γ辐照对3株南山茶种子发芽及幼苗生长的影响[J].河南农业科学,2015,44(10):61-64,72.
[8]陶巧静,臧丽丽,刘蓉,饶慧云,吴月燕,周伟军.137Cs-γ辐射对葡萄种子发芽和幼苗生长及叶绿素荧光特性的影响[J].核农学报,2015,29(4):761-768.
[9]朱宗文,查丁石,朱为民,郭世龙荣,朱龙英.60Co-γ射线辐射对番茄种子萌发及早期幼苗生长的影响[J].种子,2010,29(8):15-18.
[10]原蒙蒙,李妍,王献.60Co-γ辐射对紫薇种子生物学效应的影响[J].河南农业科学,2015,44(1):101-104.
[11]李玉明,杨世梅,纪海波,方春媛,潘从祥,陈年来.60Co-γ辐射对西瓜种子萌发和幼苗生长的效应[J].西北农业学报,2013,22(3):115-120.
[12]王文恩,包满珠,张俊卫.60Co-γ射线对日本结缕草干种子的辐射效应研究[J].草业科学,2009,26(5):155-160.