集群栽培对棉花种内关系的影响

doi:10.3724/SP.J.1259.2015.00083

植物学报 ›› 2015, Vol. 50 ›› Issue (1): 83-89.DOI: 10.3724/SP.J.1259.2015.00083

集群栽培对棉花种内关系的影响

解婷婷^1,^*(), 苏培玺², 周紫鹃², 单立山³, 李善家²

¹中国科学院寒区旱区环境与工程研究所, 临泽内陆河流域研究站/内陆河流域生态水文重点实验室, 兰州 730000
²中国科学院寒区旱区环境与工程研究所, 临泽内陆河流域研究站/寒旱区陆面过程与气候变化重点实验室, 兰州 730000
³甘肃农业大学林学院, 兰州 730070

收稿日期:2013-12-02 接受日期:2014-04-03 出版日期:2015-01-01 发布日期:2015-04-09
通讯作者: 解婷婷
作者简介:
? 共同第一作者
基金资助:
国家自然科学基金(No.31300323, No.91325104)和中国科学院寒区旱区环境与工程研究所青年人才基金(No.Y251A91001)

Effect of Cluster Planting Pattern on Intraspecific Interactions of Cotton

Tingting Xie^{1, *}, Peixi Su², Zijuan Zhou², Lishan Shan³, Shanjia Li²

¹Linze Inland River Basin Research Station/Key Laboratory of Ecohydrology and Integrated River Basin Science, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China
²Linze Inland River Basin Research Station/Key Laboratory of Land Surface Process and Climate Change in Cold and Arid Regions, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China
³College of Forestry, Gansu Agricultural University, Lanzhou 730070, China

Received:2013-12-02 Accepted:2014-04-03 Online:2015-01-01 Published:2015-04-09
Contact: Xie Tingting
About author:
? These authors contributed equally to this paper

摘要/Abstract

摘要： 为了检验假说“1穴3株集群栽培方式改变了棉花(Gossypium hirsutum)的种内关系, 从而使得经济产量显著提高”, 通过分析在集群和传统栽培方式下棉花各器官的生长特性, 阐明集群栽培下不同穴距对棉花种内关系的影响。结果表明, 与传统1穴1株种植相比, 集群栽培方式下随着穴距的减小, 棉花的茎秆生长显著降低, 在穴距为28 cm时, 叶片生物量最大且籽棉产量最高。进一步分析相对邻体效应(RNE), 发现穴距对棉花茎秆、叶片和籽棉产量的RNE影响都极为显著; 同时, 随着穴距的减小, 茎秆RNE值呈先升高后降低趋势, 且均为负值, 负效应强度在穴距为28 cm时最小。叶片和籽棉产量的RNE值均为正值, 且在穴距为28 cm时正效应强度最大。上述研究结果表明, 集群栽培改变了棉花的种内关系, 且在穴距为28 cm时, 对棉花籽棉产量的助长作用最大。

Abstract: We aimed to investigate the effect of a cluster-planting pattern on intraspecific interactions and test whether cluster planting can modify the type and intensity of intraspecific interactions, thus increasing yield. The growth characteristics of different organs of cotton under cluster and traditional planting patterns were studied and the effect of different hole distances on intraspecific interactions were analyzed. As compared with the traditional planting pattern of one plant in a hole, with cluster planting, the stem growth was reduced significantly, along with decreased hole distance, but the leaf growth and yield was highest with 28 cm hole distance. Moreover, different hole distances significantly affected the relative neighbor effect (RNE): the stem RNE increased then decreased with decreasing hole distance, but the values were all negative and the intensity of the negative effect was minimal with the 28 cm hole distance. Leaf and yield RNE were posi- tive and the intensity of the positive effect was maximal with the 28 cm hole distance. Cluster planting may effect intraspecific interactions. This facilitation is maximal for yield of cotton with the 28 cm hole distance.

解婷婷, 苏培玺, 周紫鹃, 单立山, 李善家. 集群栽培对棉花种内关系的影响. 植物学报, 2015, 50(1): 83-89.

Tingting Xie, Peixi Su, Zijuan Zhou, Lishan Shan, Shanjia Li. Effect of Cluster Planting Pattern on Intraspecific Interactions of Cotton. Chinese Bulletin of Botany, 2015, 50(1): 83-89.

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链接本文: https://www.chinbullbotany.com/CN/10.3724/SP.J.1259.2015.00083

https://www.chinbullbotany.com/CN/Y2015/V50/I1/83

图/表 4

图1 棉花集群与传统种植方式示意图

Figure 1 A schematic diagram showing traditional planting pattern and cluster planting pattern of Gossypium hirsutum

图2 集群栽培对棉花株高(A)、基径(B)、叶面积(C)和单株铃数(D)的影响不同字母表示各处理间差异显著(P≤0.05)。

Figure 2 Effects of cluster planting on plant height (A), stem diameter (B), leaf area (C) and boll numbers (D) of one plant of cotton Data with the same letter are not significantly different (P≤0.05).

图3 集群栽培对棉花单株生物量和经济产量的影响不同字母表示各处理间差异显著(P≤0.05)。

Figure 3 Effects of cluster planting on plant biomass and economic yield of cotton Data with the same letter are not significantly different (P≤ 0.05).

图4 集群栽培对棉花相对邻体效应的影响不同字母表示各处理间差异显著(P≤0.05)。

Figure 4 Effect of cluster planting on relative neighbor effect of cotton Data with the same letter are not significantly different (P≤ 0.05).

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集群栽培对棉花种内关系的影响

Effect of Cluster Planting Pattern on Intraspecific Interactions of Cotton

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