| 干旱胁迫对不同育苗方式烤烟生长和生理生化特性的影响 |
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| 引用本文： | 陈洁宇,周冀衡,邓小刚,张一扬,李春林,牛丽娜,江子勤,陈浩.干旱胁迫对不同育苗方式烤烟生长和生理生化特性的影响[J].烟草科技,2011(8). |
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| 作者姓名： | 陈洁宇 周冀衡 邓小刚 张一扬 李春林 牛丽娜 江子勤 陈浩 |
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| 作者单位： | 1. 湖南农业大学烟草研究院,长沙市芙蓉区,410128
2. 云南省玉溪市烟草公司,云南省玉溪市凤凰路102号,653100 |
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| 基金项目： | 云南省烟草公司资助项目“烟草漂湿育苗技术研究与推广”(YN20080107) |
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| 摘 要： | 为明确干旱胁迫对不同育苗方式下烟苗移栽后的生长状况及生理生化特性的影响,通过盆栽控制土壤含水率试验,研究了干旱缺水环境下烤烟的适宜育苗方式.结果表明:干旱胁迫下,烟株脯氨酸含量和过氧化物酶活性两项指标均呈现出上升趋势.随着干旱时间的持续以及干旱程度的加深,烟株的硝酸还原酶活性则呈下降趋势.在轻度干旱条件下,漂湿育苗方式培育的烟苗移栽后生长状况好于漂浮育苗方式培育的烟苗.在极端干旱条件下,烟苗移栽14d后,两种育苗方式的烟株生长均停滞并出现叶片变黄枯萎等现象.
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| 关 键 词： | 烤烟 育苗 干旱胁迫 |
Effects of Drought Stress on Growth, Physiological and Biochemical Characteristics of Flue- cured Tobacco from Seedlings Cultured by Different Seedbed Systems |
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| CHEN JIE-YU,ZHOU JI-HENG,DENG XIAO-GANG,ZHANG YI-YANG,LI CHUN-LIN,NIU LI-NA,JIANG ZI-QIN,CHEN HAO.Effects of Drought Stress on Growth, Physiological and Biochemical Characteristics of Flue- cured Tobacco from Seedlings Cultured by Different Seedbed Systems[J].Tobacco Science & Technology,2011(8). |
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| Authors: | CHEN JIE-YU ZHOU JI-HENG DENG XIAO-GANG ZHANG YI-YANG LI CHUN-LIN NIU LI-NA JIANG ZI-QIN CHEN HAO |
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| Affiliation: | CHEN JIE-YU(1),ZHOU JI-HENG(1),DENG XIAO-GANG(2),ZHANG YI-YANG(1),LI CHUN-LIN(2),NIU LI-NA(1),JIANG ZI-QIN(1),and CHEN HAO(1) 1.Institute of Tobacco,Hunan Agriculture University,Changsha 410128,China 2.Yuxi Tobacco Company of Yunnan Province,Yuxi 653100,Yunnan,China |
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| Abstract: | For investigating the influence of drought stress on the growth,physiological and biochemical characteristics of transplanted seedlings cultured in different seedbed systems,the pot trials with controlled soil moisture content were conducted to study the seedbed systems for flue-cured tobacco seedlings adaptable to drought conditions.The results showed that the proline content and POD activity in tobacco plants presented a rising trend under drought stress.With the increase of duration and degree of drought... |
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| Keywords: | Tobacco Seedling culture Drought stress |
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