Arid
DOI10.1016/j.foreco.2010.04.030
A comparison of pod production and insect ratings of 12 elite Prosopis alba clones in a 5-year semi-arid Argentine field trial
Ewens, Mauricio; Felker, Peter
通讯作者Felker, Peter
来源期刊FOREST ECOLOGY AND MANAGEMENT
ISSN0378-1127
EISSN1872-7042
出版年2010
卷号260期号:3页码:378-383
英文摘要

Semi-arid adapted nitrogen fixing trees of the genus Prosopis have been extensively used in Argentina for soil improvement, luxury quality lumber production and sweet (35% sucrose) pods for humans and livestock Due to the great demand of Prosopis alba for lumber, erect, tall, high pod producing trees of this species have been greatly overharvested, leading to erosion of the gene pool A previous progeny trial with 57 half sib families identified 12 trees with promise for rapid growth, high production of pods and sweet pods. This trial, on a site with a salinity of 8 6 dS m(-1) EC and a pH of 7 7, examined clones of these 12 trees in a randomized complete block trial with 8 single tree replications for height, basal diameter, canopy height and diameter, production of pods, sensory characteristics of the pods, disease resistance and Insect resistance In the 5th year of production and 7th year from planting, three clones produced more than 50 kg pods per tree versus 32 kg for check At this 10 m x 10 m spacing, this yield of 5000 kg/ha compares favorably to many other semi-and crops, especially given the unfavorable salinity and pH In contrast to genetic improvement in pod production, the clones had lower diameter, height and canopy growth than the check The lower biomass production may be due to fibrous root system produced from cuttings, since some of the clones blew over in high winds but none of the checks produced from seed blew over Companion seed orchards of salt tolerant clones may provide rootstock for these high pod production clones. Significant differences in Insect and disease resistance of the clones were observed and full sib crosses were made to study the genetics of the resistance All clones had good sensory properties for use in human food This is the first replicated trial with multipurpose clones useful for lumber and human food. The annual diameter growth rates ranged from 2.8 to 4 1 cm year(-1) which was estimated to produce an internal return of approximately 20% from lumber alone (C) 2010 Elsevier B V All rights reserved


英文关键词Nitrogen fixing trees Agroforestry Salinity Mesquite Hardwood lumber
类型Article
语种英语
国家Argentina
收录类别SCI-E
WOS记录号WOS:000279582100017
WOS关键词LUMBER PRODUCTION ; ARID LANDS ; HUMAN FOOD ; MESQUITE ; CLONING ; IDENTIFICATION ; GLANDULOSA ; GROWTH ; FLOUR ; TREES
WOS类目Forestry
WOS研究方向Forestry
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/164180
作者单位Univ Catolica Santiago Estero, Santiago Del Estero, Argentina
推荐引用方式
GB/T 7714
Ewens, Mauricio,Felker, Peter. A comparison of pod production and insect ratings of 12 elite Prosopis alba clones in a 5-year semi-arid Argentine field trial[J],2010,260(3):378-383.
APA Ewens, Mauricio,&Felker, Peter.(2010).A comparison of pod production and insect ratings of 12 elite Prosopis alba clones in a 5-year semi-arid Argentine field trial.FOREST ECOLOGY AND MANAGEMENT,260(3),378-383.
MLA Ewens, Mauricio,et al."A comparison of pod production and insect ratings of 12 elite Prosopis alba clones in a 5-year semi-arid Argentine field trial".FOREST ECOLOGY AND MANAGEMENT 260.3(2010):378-383.
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