Melisa Santilli, S. S. Bas-Nahas, Norma N. Medrano
{"title":"不同种植期小苍兰物候期的发生及持续时间","authors":"Melisa Santilli, S. S. Bas-Nahas, Norma N. Medrano","doi":"10.1590/2447-536x.v29i2.2568","DOIUrl":null,"url":null,"abstract":"Abstract Freesia (Freesia x hybrida) is one of the most cultivated species of cut flowers, ranking sixth in the international market. Phenological processes occurring during the crop cycle are controlled by endogenous mechanisms and the environment, which in turn influence the duration and occurrence of the development phases. This study aimed to analyze the effect of planting dates (Feb 15, March 19, April 16, May 21, and June 21, 2021) on the occurrence and duration of the development phases of two freesia varieties (Blue Bayou and Yvonne). The trial was conducted in a high tunnel. The crop cycle was divided into vegetative, reproductive, and senescence phases. The number of leaves was counted daily. The development phases were significantly shortened with the delay of planting. The vegetative phase ranged between 2269.78 ± 19.22 and 736.50 ± 19.22 GDD for Blue B., and between 1864.48 ± 19.22 and 667.09 ± 19.22 GDD for Yvonne. The reproductive phase lasted 459.50 ± 20.99 and 379.51 ± 20.99 GDD for Blue B., 461.43 ± 20.99 and 487.29 ± 20.99 GDD for Yvonne. The senescence phase was shortened with delayed planting dates only for Yvonne. Plants cultivated at later dates (May 21, and June 21), and consequently exposed to increased photoperiod, had a lower number of leaves at flowering (7.85 ± 0.10) and were less exposed to inductive temperatures than plants cultivated earlier. The transition to the reproductive phase was determined by the interaction between photoperiod, temperature and plant age.","PeriodicalId":19699,"journal":{"name":"Ornamental Horticulture","volume":"1 1","pages":""},"PeriodicalIF":1.1000,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Occurrence and duration of phenological phases of Freesia x hybrida grown at different planting dates\",\"authors\":\"Melisa Santilli, S. S. Bas-Nahas, Norma N. Medrano\",\"doi\":\"10.1590/2447-536x.v29i2.2568\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Abstract Freesia (Freesia x hybrida) is one of the most cultivated species of cut flowers, ranking sixth in the international market. Phenological processes occurring during the crop cycle are controlled by endogenous mechanisms and the environment, which in turn influence the duration and occurrence of the development phases. This study aimed to analyze the effect of planting dates (Feb 15, March 19, April 16, May 21, and June 21, 2021) on the occurrence and duration of the development phases of two freesia varieties (Blue Bayou and Yvonne). The trial was conducted in a high tunnel. The crop cycle was divided into vegetative, reproductive, and senescence phases. The number of leaves was counted daily. The development phases were significantly shortened with the delay of planting. The vegetative phase ranged between 2269.78 ± 19.22 and 736.50 ± 19.22 GDD for Blue B., and between 1864.48 ± 19.22 and 667.09 ± 19.22 GDD for Yvonne. The reproductive phase lasted 459.50 ± 20.99 and 379.51 ± 20.99 GDD for Blue B., 461.43 ± 20.99 and 487.29 ± 20.99 GDD for Yvonne. The senescence phase was shortened with delayed planting dates only for Yvonne. Plants cultivated at later dates (May 21, and June 21), and consequently exposed to increased photoperiod, had a lower number of leaves at flowering (7.85 ± 0.10) and were less exposed to inductive temperatures than plants cultivated earlier. The transition to the reproductive phase was determined by the interaction between photoperiod, temperature and plant age.\",\"PeriodicalId\":19699,\"journal\":{\"name\":\"Ornamental Horticulture\",\"volume\":\"1 1\",\"pages\":\"\"},\"PeriodicalIF\":1.1000,\"publicationDate\":\"2023-07-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Ornamental Horticulture\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1590/2447-536x.v29i2.2568\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"HORTICULTURE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ornamental Horticulture","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1590/2447-536x.v29i2.2568","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"HORTICULTURE","Score":null,"Total":0}
Occurrence and duration of phenological phases of Freesia x hybrida grown at different planting dates
Abstract Freesia (Freesia x hybrida) is one of the most cultivated species of cut flowers, ranking sixth in the international market. Phenological processes occurring during the crop cycle are controlled by endogenous mechanisms and the environment, which in turn influence the duration and occurrence of the development phases. This study aimed to analyze the effect of planting dates (Feb 15, March 19, April 16, May 21, and June 21, 2021) on the occurrence and duration of the development phases of two freesia varieties (Blue Bayou and Yvonne). The trial was conducted in a high tunnel. The crop cycle was divided into vegetative, reproductive, and senescence phases. The number of leaves was counted daily. The development phases were significantly shortened with the delay of planting. The vegetative phase ranged between 2269.78 ± 19.22 and 736.50 ± 19.22 GDD for Blue B., and between 1864.48 ± 19.22 and 667.09 ± 19.22 GDD for Yvonne. The reproductive phase lasted 459.50 ± 20.99 and 379.51 ± 20.99 GDD for Blue B., 461.43 ± 20.99 and 487.29 ± 20.99 GDD for Yvonne. The senescence phase was shortened with delayed planting dates only for Yvonne. Plants cultivated at later dates (May 21, and June 21), and consequently exposed to increased photoperiod, had a lower number of leaves at flowering (7.85 ± 0.10) and were less exposed to inductive temperatures than plants cultivated earlier. The transition to the reproductive phase was determined by the interaction between photoperiod, temperature and plant age.
期刊介绍:
The Journal ORNAMENTAL HORTICULTURE - OH (Revista Brasileira de Horticultura Ornamental) is an official publication of the Brazilian Society for Floriculture and Ornamental Plants (Sociedade Brasileira de Floricultura e Plantas Ornamentais) - SBFPO Short title of the journal: ORNAM. HORTIC. This Journal aim to publish technical and scientific researches in floriculture, ornamental plants, landscaping and landscapes from members of this Society and others. The manuscripts can be submitted in portuguese, but publication must be in English language (U.S.). All the manuscripts submitted to Ornamental Horticulture (Revista Brasileira de Horticultura Ornamental) - OH must not have been submitted or published at the same time, partial or totally, to other journal. It is allowed to read, download, copy, distribute, print, search, or link to parts or the full texts to use them for any other lawful purpose. The reproduction of articles published in this journal is authorized, under the condition that the source is acknowledged.