天竺葵群体遗传变异的研究

IF 1.3 4区农林科学 Q3 AGRONOMY

Crop Breeding and Applied Biotechnology Pub Date : 2003-06-30 DOI:10.12702/1984-7033.V03N02A02

A. Aguiar, F. Bortolozo, Mário Luiz, T. Moraes, J. Costa

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引用次数: 7

摘要

1996年3月，在巴西南马托格罗索州的塞尔维里亚对两个贡卡罗-阿尔夫(星黄星)种群进行了两次子代试验。采用随机完全区组设计，共30个处理(后代)，5个重复。地块由10株植物交替排列成单行。行内株距和行间株距均为3.0m。获得了10个造林性状的数据，以帮助该物种的“迁地”遗传保护工作。后代在使用的生长体系中表现优异。两个群体在分析的所有性状上都表现出遗传变异，但在群体之间没有发现显著差异。因此，为了“移地”遗传保护的目的，建议将这两个种群视为一个种群。在涉及这些群体的遗传育种计划中，株高是在家庭平均水平上获得选择增益机会较大的性状。

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Genetic variation in Astronium fraxinifolium populations in consortium

Two progeny tests of two goncalo-alves (Astronium fraxinifolium) populations were evaluated in March 1996 at Selviria, Mato Grosso do Sul State, Brazil. A randomized complete block design with 30 treatments (progenies) and five replications was used. Plots were formed by 10 plants arranged in a alternate single rows. Spacing was 3.0m between plants within rows and between rows. Data on 10 silvicultural traits were obtained to help in “ex situ” efforts of genetic conservation of the species. The progenies had excellent performance in the used growing system. Both populations presented genetic variability for all analyzed traits, although no significant difference between the populations was detected. It is therefore recommended that both populations be considered as a single population for “ex situ” genetic conservation purposes. In a genetic breeding program involving those populations, plant height is the trait with greater chances of obtaining the selection gain in level of average of families.

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来源期刊

Crop Breeding and Applied Biotechnology AGRONOMY-BIOTECHNOLOGY & APPLIED MICROBIOLOGY

CiteScore

2.70

自引率

13.30%

发文量

审稿时长

6-12 weeks

期刊介绍： The CBAB – CROP BREEDING AND APPLIED BIOTECHNOLOGY (ISSN 1984-7033) – is the official quarterly journal of the Brazilian Society of Plant Breeding, abbreviated CROP BREED APPL BIOTECHNOL. It publishes original scientific articles, which contribute to the scientific and technological development of plant breeding and agriculture. Articles should be to do with basic and applied research on improvement of perennial and annual plants, within the fields of genetics, conservation of germplasm, biotechnology, genomics, cytogenetics, experimental statistics, seeds, food quality, biotic and abiotic stress, and correlated areas. The article must be unpublished. Simultaneous submitting to another periodical is ruled out. Authors are held solely responsible for the opinions and ideas expressed, which do not necessarily reflect the view of the Editorial board. However, the Editorial board reserves the right to suggest or ask for any modifications required. The journal adopts the Ithenticate software for identification of plagiarism. Complete or partial reproduction of articles is permitted, provided the source is cited. All content of the journal, except where identified, is licensed under a Creative Commons attribution-type BY. All articles are published free of charge. This is an open access journal.