| 漂浮育苗方式下烟草根茬腐解液对幼苗生长的化感效应 |
| |
| 引用本文： | 汪林,周冀衡,邓小刚,陈洁宇,牛莉娜,毛振平,陈浩,江子勤,柳均. 漂浮育苗方式下烟草根茬腐解液对幼苗生长的化感效应[J]. 安徽农业科学, 2011, 39(15): 8906-8907 |
| |
| 作者姓名： | 汪林 周冀衡 邓小刚 陈洁宇 牛莉娜 毛振平 陈浩 江子勤 柳均 |
| |
| 作者单位： | 湖南农业大学烟草科学与健康重点实验室,生物科学技术学院,湖南长沙,410128;云南烟草公司玉溪市公司,云南玉溪,653101 |
| |
| 基金项目： | 云南省烟草专卖局资助项目-烤烟漂浮育苗技术的研究推广(09A02) |
| |
| 摘 要： | [目的]揭示烟草连作障碍的作用机制,为消除农业生产上烟草的连作障碍提供理论依据。[方法]以漂浮育苗的方式,研究了不同浓度烟草根茬腐解液对幼苗生长的影响。[结果]当烟草根茬腐解液浓度为0.1 g/ml时,能促进幼苗的生长,能显著提高烟株的干物质重量,增强硝酸还原酶活性和根系活力。随着腐解液浓度的提高,促进作用逐渐转为抑制作用。当烟草根茬腐解液浓度达0.2 g/ml时,烟株硝酸还原酶活性明显下降,过氧化物酶活性和丙二醛含量显著上升。当烟草根茬腐解液浓度达0.3 g/ml以上时,烟株硝酸还原酶活性最低,过氧化物酶活性和丙二醛含量达最大。[结论]烟草根茬腐解液对烟苗的生长产生了不同程度的化感效应,随腐解液浓度的提高表现出明显的＂低促高抑＂的现象。
|
| 关 键 词： | 烟草 漂浮育苗 根茬腐解液 化感效应 |
Allelopathy of Tobacco Roots' Decayed Liquids on the Seedlings' Growth in the Floating-seeding System |
| |
| WANG Lin et al. Allelopathy of Tobacco Roots' Decayed Liquids on the Seedlings' Growth in the Floating-seeding System[J]. Journal of Anhui Agricultural Sciences, 2011, 39(15): 8906-8907 |
| |
| Authors: | WANG Lin et al |
| |
| Affiliation: | WANG Lin et al(Key Laboratory of Tobacco Science and Health,School of Life Science and Technology,Hunan Agricultural University,Changsha,Hunan 410128) |
| |
| Abstract: | [Objective] The research aimed to reveal the mechanism system of continuous cropping obstacle of tobacco and provide theoretical basis for eliminating the continuous cropping obstacle of tobacco in the agricultural production.[Method] By the method of floating-seeding system,the effects of tobacco roots' decayed liquids on the seedling growth were studied.[Result] When the concentration of tobacco roots' decayed liquids was 0.1 g/ml,it increased the seedling growth and dry matter weight of tobacco apparentl... |
| |
| Keywords: | Tobacco Floating-seeding system Decomposed liquids from roots Allelopathy |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
