Arid
Genetic Diversity of Almond (Prunus amygdalus Batsch) in Tunisia: A Morphological Traits Analysis
Gouta, H.1; Mars, M.2; Gouiaa, M.2; Ghrab, M.3; Zarrouk, M.4; Mliki, A.4
通讯作者Gouta, H.
会议名称5th International Symposium on Pistachios and Almonds
会议日期OCT 06-10, 2009
会议地点Sanliurfa, TURKEY
英文摘要

In Tunisia, the almond tree (Prunus amygdalus Batsch) dates back to ancient times and has been known since the Carthaginian era. About 90% of the almond production is in the semi-arid central and southern part of the country. In the north, Bizerte presents a very specific ecosystem, with cultivars practically resistant to strong wind and high humidity. Due to recent severe drought, more than three million trees were lost. This has resulted in a strong decline of the local almond gene pool and a real risk of loosing useful genetic resources for breeding programs and other uses. To safeguard the remaining almond germplasm, collecting of traditional almond cultivation areas has taken place in the past few years. More then 70 ecotypes have been identified and characterized. For this study, 50 almond cultivars and ecotypes were screened using 27 morphological and pomological traits. Principal Component Analysis shows that the first three principal components retained explain more then 41% of the total variance. The main fruit weight and size variables such as nut weight, nut length, nut thickness, nut size, kernel length, kernel weight, and kernel thickness were strongly associated with the first principal component. Percentages of double kernel and aborted kernel were positively associated with the second principal component. As the shelling percentage was negatively associated with the third principal component, this last was considered a component of commercial value. Cluster analysis classifies the studied almond cultivars into six groups.


英文关键词local ecotypes principal component analysis ascendant hierarchic classification germplasm diversity
来源出版物V INTERNATIONAL SYMPOSIUM ON PISTACHIOS AND ALMONDS
ISSN0567-7572
出版年2011
卷号912
页码351-358
EISBN978-90-66056-34-3
出版者INT SOC HORTICULTURAL SCIENCE
类型Proceedings Paper
语种英语
国家Tunisia
收录类别CPCI-S
WOS记录号WOS:000313835600051
WOS关键词CULTIVATED GENOTYPES
WOS类目Agronomy ; Horticulture
WOS研究方向Agriculture
资源类型会议论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/299564
作者单位1.Olive Tree Inst, PB 014, Sousse 4061, Tunisia;
2.Inst Suprieur dAgronomie, Chott Mariem, Sousse, Tunisia;
3.Olive Tree Inst, Sfax 3000, Tunisia;
4.Ctr Biotechnol Borj Cedria, Hammam Lif 2050, Tunisia
推荐引用方式
GB/T 7714
Gouta, H.,Mars, M.,Gouiaa, M.,et al. Genetic Diversity of Almond (Prunus amygdalus Batsch) in Tunisia: A Morphological Traits Analysis[C]:INT SOC HORTICULTURAL SCIENCE,2011:351-358.
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