浙江农业学报 ›› 2022, Vol. 34 ›› Issue (11): 2358-2367.DOI: 10.3969/j.issn.1004-1524.2022.11.05
段媛媛1,2(), 刘晓洪2, 吴佳奇1, 郭晓亮1, 王帆帆1, 唐涛1, 游景茂1, 郭杰1,2,*(
)
收稿日期:
2022-03-16
出版日期:
2022-11-25
发布日期:
2022-11-29
通讯作者:
郭杰
作者简介:
*郭杰,E-mail: gjms91@126.com基金资助:
DUAN Yuanyuan1,2(), LIU Xiaohong2, WU Jiaqi1, GUO Xiaoliang1, WANG Fanfan1, TANG Tao1, YOU Jingmao1, GUO Jie1,2,*(
)
Received:
2022-03-16
Online:
2022-11-25
Published:
2022-11-29
Contact:
GUO Jie
摘要:
为探究厚朴凋落叶分解的化感效应,采用盆栽试验,以不添加凋落叶为对照组(CK),设置4个凋落叶添加水平,研究厚朴凋落叶在土壤中分解对湖北贝母生长和生理特性的影响。结果表明,与对照组相比,苗期,湖北贝母的株高、叶长、叶宽、叶面积、鳞茎长、鳞茎宽、鳞茎鲜重和叶绿素含量表现为低剂量处理无显著差异(P>0.05),高剂量处理显著抑制(P<0.05);花期和始枯期,湖北贝母的株高、叶长、叶宽、叶面积和叶绿素含量则呈明显的“低促高抑”规律。而湖北贝母的抗氧化酶活性、丙二醛含量和超氧阴离子自由基含量在不同发育时期变化规律不同。随着厚朴凋落叶剂量的增加,综合效应值先增大后减小,具体排序为:T2(10.50 g·kg-1) (1.16)>T1 (5.25 g·kg-1) (0.44)>T3 (15.75 g·kg-1) (0.02)>T4(21.00 g·kg-1) (-0.99)。主成分分析表明,苗期,叶绿素和丙二醛含量、超氧化物歧化酶活性是影响湖北贝母生长的主要指标;花期,叶长、叶宽、叶面积和株高等地上性状可作为表征湖北贝母生长的主要指标;而始枯期,超氧阴离子自由基含量、过氧化物酶活性则成为影响湖北贝母生长的主要指标,鳞茎长、鳞茎宽、鳞茎鲜重等地下性状可作为湖北贝母生长的主要研究指标。综上所述,低剂量厚朴凋落叶处理显著促进湖北贝母的生长,而高剂量的厚朴凋落叶则显著抑制湖北贝母的生长,且当厚朴凋落叶剂量为10.50 g·kg-1时,湖北贝母生长状况最佳。
中图分类号:
段媛媛, 刘晓洪, 吴佳奇, 郭晓亮, 王帆帆, 唐涛, 游景茂, 郭杰. 厚朴凋落叶分解对湖北贝母生长与生理特性的影响[J]. 浙江农业学报, 2022, 34(11): 2358-2367.
DUAN Yuanyuan, LIU Xiaohong, WU Jiaqi, GUO Xiaoliang, WANG Fanfan, TANG Tao, YOU Jingmao, GUO Jie. Effects of Magnolia officinalis leaf litter decomposition on growth trait and physiological characteristic of Fritillaria hupehensis[J]. Acta Agriculturae Zhejiangensis, 2022, 34(11): 2358-2367.
图1 厚朴凋落叶分解对湖北贝母地上性状的影响 S,苗期;F,花期;P,始枯期。相同时期不同处理无相同小写字母表示差异显著(P<0.05)。下同。
Fig.1 Effects of M. officinalis leaf litter on aboveground characters of F. hupehensis S, Seedling stage; F, Flowering stage; P, Start withering stage. Different letters in the same column of different treatments in the same sampling period indicated significant difference at 0.05 level. The same as below.
图4 厚朴凋落叶分解对湖北贝母抗氧化酶活性的影响 数据以鲜重计。
Fig.4 Effects of M. officinalis leaf litter on antioxidant system of F. hupehensis Data was detected based on fresh weight.
处理 Treatment | 生理生长响应指数PGRI | 综合效应 Comprehensive effect | |||||||
---|---|---|---|---|---|---|---|---|---|
PH | BL | BW | BFW | LL | LW | LA | Chl | ||
CK | — | — | — | — | — | — | — | — | — |
T1 | 0.11 | 0.03 | 0.02 | 0.01 | 0.02 | -0.01 | 0.03 | 0.23 | 0.44 |
T2 | 0.15 | 0.07 | 0.09 | 0.28 | 0.12 | 0.16 | 0.18 | 0.11 | 1.16 |
T3 | 0.05 | -0.06 | -0.04 | -0.07 | -0.06 | 0.09 | 0.01 | 0.10 | 0.02 |
T4 | 0.01 | -0.01 | -0.08 | 0.02 | -0.19 | -0.19 | -0.35 | -0.20 | -0.99 |
表1 厚朴凋落叶分解对湖北贝母生理生长的综合效应
Table 1 Comprehensive effects of M. officinalis leaf litter on physiological and growing characteristics of F. hupehensis
处理 Treatment | 生理生长响应指数PGRI | 综合效应 Comprehensive effect | |||||||
---|---|---|---|---|---|---|---|---|---|
PH | BL | BW | BFW | LL | LW | LA | Chl | ||
CK | — | — | — | — | — | — | — | — | — |
T1 | 0.11 | 0.03 | 0.02 | 0.01 | 0.02 | -0.01 | 0.03 | 0.23 | 0.44 |
T2 | 0.15 | 0.07 | 0.09 | 0.28 | 0.12 | 0.16 | 0.18 | 0.11 | 1.16 |
T3 | 0.05 | -0.06 | -0.04 | -0.07 | -0.06 | 0.09 | 0.01 | 0.10 | 0.02 |
T4 | 0.01 | -0.01 | -0.08 | 0.02 | -0.19 | -0.19 | -0.35 | -0.20 | -0.99 |
图6 湖北贝母生长性状和生理特性的PCA排序 Chl,总叶绿素含量;Chl a,叶绿素a含量;Chl b,叶绿素b含量;Car,类胡萝卜素含量;ROS,超氧阴离子自由基含量。
Fig.6 PCA ordination of physiological growth properties on physiological indexes of F. hupehensis Chl, Chlorophyll content; Chl a, Chlorophyll a content; Chl b, Chlorophyll b content; Car, Carotenoid content; ROS, O 2 · -content.
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