干旱区生态环境知识资源中心(Arid): Genotype x environmental interactions of cactus pear (Opuntia ficus-indica) in the semi-arid regions of South Africa: fruit production

Arid

DOI	10.17660/ActaHortic.2019.1247.5
	Genotype x environmental interactions of cactus pear (Opuntia ficus-indica) in the semi-arid regions of South Africa: fruit production
	Coetzer, G. M.; Fouche, H. J.; Smith, M. F.
通讯作者	Coetzer, GM (corresponding author), Univ Free State, Dept Soil Crop & Climate Sci, POB 339, Bloemfontein, South Africa.
会议名称	9th International Congress on Cactus Pear and Cochineal - CAM Crops for a Hotter and Drier World / General Meeting of the FAO-ICARDA International Cooperation Network on Cactus Pear and Cochineal (FAO-ICARDA CACTUSNET)
会议日期	MAR 26-30, 2017
会议地点	Coquimbo, CHILE
英文摘要	The adaptability of a cactus pear cultivar to a specific environment is primarily a function of fruit yield. The fruit yield of local cultivars were very variable over a period of 10 years, and the objective of this study was to investigate the role of climatic factors in fruit yield. Data were collected from a cactus pear orchard with 42 cultivars that was laid out as a randomized complete block design with two replicates of five data plants each. Twelve cultivars were identified as potential fruit-producing cultivars for the local and export markets. Fruit-yield data were collected over a period of 10 years and compared with rainfall, accumulated heat units and average monthly maximum temperature data. Data analysis showed that cultivars differed significantly in their stability, and cultivar-by-season interactions played an important role in fruit production. Cultivar 'Van As' was the most consistent yielding cultivar over all 10 seasons. Seasons 4 and 5 were the highest yielding seasons, when fruit thinning was done during the first five production years, and cultivars 'Morado', 'Meyers', 'Zastron', 'Van As' and 'Gymno Carpo' yielded the most fruit. These cultivars also ranked the best when no fruit thinning was done, during the next five years. A high correlation between fruit yield and total rainfall from October to November (84.8%) existed for the first five seasons, which was not the case for heat units or maximum monthly temperature. From season 6, when no fruit thinning was done, a high correlation existed between fruit yield and total rainfall for the period October to December (94.0%) and between average monthly maximum temperatures for October (73.2%), November (51.2%) and December (82.4%). The total rainfall for seasons 6, 8 and 10 was 311.0, 244.8 and 247.7 mm, respectively, compared with 78 and 137.3 mm for seasons 7 and 9, respectively, for the period October to December. Our results indicated that rainfall distribution played a major role in fruit yield, and not only the total rainfall for the season. Early summer rainfall (October-November) had a more significant effect on fruit yield than spring (July-September) or late summer (January) rainfall.
英文关键词	rainfall temperature accumulated heat units fruit thinning
来源出版物	PROCEEDINGS OF THE IX INTERNATIONAL CONGRESS ON CACTUS PEAR AND COCHINEAL: CAM CROPS FOR A HOTTER AND DRIER WORLD
ISSN	0567-7572
EISSN	2406-6168
出版年	2019
卷号	1247
页码	31-39
ISBN	978-94-62612-44-0
出版者	INT SOC HORTICULTURAL SCIENCE
类型	Proceedings Paper
语种	英语
收录类别	CPCI-S
WOS记录号	WOS:000719258700005
WOS关键词	QUALITY ; YIELD ; SPP. ; BIOMASS ; GROWTH
WOS类目	Agronomy ; Plant Sciences ; Horticulture
WOS研究方向	Agriculture ; Plant Sciences
资源类型	会议论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/370256
作者单位	[Coetzer, G. M.] Univ Free State, Dept Soil Crop & Climate Sci, POB 339, Bloemfontein, South Africa; [Fouche, H. J.] PA Univ Free State, Agr Res Council, POB 339, Bloemfontein, South Africa; [Smith, M. F.] Stats4sci, POB 50505, ZA-0097 Pretoria, South Africa
推荐引用方式 GB/T 7714	Coetzer, G. M.,Fouche, H. J.,Smith, M. F.. Genotype x environmental interactions of cactus pear (Opuntia ficus-indica) in the semi-arid regions of South Africa: fruit production[C]:INT SOC HORTICULTURAL SCIENCE,2019:31-39.