Effects of Temperature on Leaf Area and Flower Size in Rose

Shin, Hyun-Yul; Lieth, J. Heinrich; Kim, Sung Hyun

doi:10.17660/actahortic.2001.547.22

Cited by 46 publications

(40 citation statements)

References 13 publications

(18 reference statements)

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“…In our opinion, this result can also be due to low air temperature during the flowering period. The relationship of flower size with temperature agreed with results from Shin et al ., who reported that stem length, stem diameter and flower dry weight of roses increased with decreasing temperature, probably due to low evapotranspiration rates at low temperatures.…”

Section: Resultssupporting

confidence: 89%

Evaluation of corm origin and climatic conditions on saffron (Crocus sativus L.) yield and quality

et al. 2019

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BACKGROUND Crocus sativus L. is an autumn‐flowering geophyte belonging to the Iridaceae family, known for the medicinal and coloring uses of the spice from its dried stigmas. It is cultivated in countries with different pedoclimatic conditions. This paper reports on a two‐year research project carried out in the Basilicata region of southern Italy on the question of how to obtain the highest performance from saffron. It considers corms from three different geographical origins – ‘Sardinia’, ‘Abruzzo’ and ‘Kozani’ at three different cultivation sites, namely Castelgrande (40° 46′ N, 15° 26′ E, 781 m a.s.l.), Genzano di Lucania (40° 50′ N, 16° 08′ E, 344 m a.s.l.), and Villa d'Agri (40° 22′ N, 15° 48′ E, 638 m a.s.l.). RESULTS The highest yields were obtained in the second year by the combination of ‘Genzano di L. × Sardinia’ and ‘Castelgrande × Abruzzo’ with 28.1 and 23.9 kg ha−1 of dried stigma, respectively. Saffron quality was determined according to ISO 3632, which classifies the samples into three categories depending on the crocin, picrocrocin, and safranal content. Results highlighted that the highest values for coloring (242.1) and bitterness (97.7) were achieved in Genzano di L. during 2013. Moreover, the crocins were correlated positively with stigma yield and air mean temperature but negatively with safranal. CONCLUSION This study demonstrated, through principal component analysis (PCA), that the cultivation site with higher air temperature and without excessive rain during the flowering period generated the best stigma yield with high‐quality traits. © 2019 Society of Chemical Industry

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Section: Resultssupporting

confidence: 89%

Evaluation of corm origin and climatic conditions on saffron (Crocus sativus L.) yield and quality

et al. 2019

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“…Temperature and light are primary factors of crop growth and development, but when these are too high, the development of leaves and shoots can be affected (SHIN et al, 2001), as observed in rose, with smaller size, fewer and smaller petals during flowering when high temperature was related with the number of cultivation days. SHIN et al (2001) stated that the number of leaves per shoot of the rose was not affected by temperature, however, rod size, and the diameter and area of the leaf decreased as temperature increased.…”

Section: Introductionmentioning

confidence: 99%

“…SHIN et al (2001) stated that the number of leaves per shoot of the rose was not affected by temperature, however, rod size, and the diameter and area of the leaf decreased as temperature increased.…”

Section: Introductionmentioning

confidence: 99%

Climate variations in greenhouse cultivated with gerbera and relationship with external conditions

Andrade

Damasceno²,

Dias

et al. 2011

Eng. Agríc.

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Black meshes used in greenhouses provide shade to plants, affecting photosynthesis and presenting certain properties that change the microclimatic conditions in these environments. The objective of this study was to evaluate the variation in climate elements in greenhouse cultivated with gerbera (Gerbera jamesonii, Vr. Rambo) in relation to external conditions and the reference evapotranspiration (ETo) at Teresina, State of Piauí, Brazil. The measurements were obtained from July to October 2007 by an automatic data acquisition system installed inside and outside the greenhouse. The global solar radiation, evapotranspiration, precipitation, temperature, relative humidity, and wind speed were estimated. The results showed that major effect of the shading occurred on the mean air temperature during the 120 days, making it higher than the external environment. Inside the greenhouse, mean values of relative air humidity, reference evapotranspiração, global solar radiation and wind speed were lower compared to those outside the greenhouse.KEYWORDS: meteorology, meteorological elements, floriculture, Gerbera jamesonii. VARIAÇÕES METEOROLÓGICAS EM AMBIENTE PROTEGIDO CULTIVADO COM GÉRBERAS E SUAS RELAÇÕES COM AS CONDIÇÕES EXTERNAS RESUMO:Os ambientes protegidos cobertos com malha negra fornecem sombreamento às plantas, têm forte influência no processo da fotossíntese e possuem propriedades particulares que interferem nas condições micrometeorológicas desses ambientes. Objetivou-se, neste trabalho, avaliar os elementos meteorológicos no interior do ambiente protegido cultivado com gérbera (Gerbera jamesonii, Vr. Rambo) em relação ao ambiente externo e na evapotranspiração de referência (ETo), a qual foi correlacionada às variáveis ambientais em Teresina-PI. No período de julho a outubro de 2007, os elementos meteorológicos foram obtidos por um sistema de aquisição de dados automático instalado no interior do ambiente protegido e externamente. Estimaram-se a radiação solar global, temperatura, umidade relativa do ar, evapotranspiração de referência, precipitação e velocidade do ar. Os resultados mostraram que o maior efeito da cobertura ocorreu sobre a temperatura média do ar durante os 120 dias, tornando-as acima das verificadas no ambiente exterior. Foram observados no ambiente protegido, valores médios de umidade relativa do ar, evapotranspiração de referência, radiação solar global e velocidade do vento, inferiores aos obtidos em condição de campo.

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“…Temperature is well known to facilitate flowering in many plant species (see review by van Doorn and van Meeteren, 2003). Shin et al (2001) showed that in roses the number of days from bud break to flowering increased from 21.6 to 63.0 days as temperature decreased from 30 to 15 • C. The number of days to flower was primarily influenced by the temperature after formation of a visible bud. This suggests that the temperature after visible bud formation significantly affects the rate of flower development and opening.…”

Section: Altitudementioning

confidence: 99%

Effects of UV radiation on growth and postharvest characteristics of three pot rose cultivars grown at different altitudes

Terfa

Roro

Olsen

et al. 2014

Scientia Horticulturae

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Effects of Temperature on Leaf Area and Flower Size in Rose

Cited by 46 publications

References 13 publications

Evaluation of corm origin and climatic conditions on saffron (Crocus sativus L.) yield and quality

Evaluation of corm origin and climatic conditions on saffron (Crocus sativus L.) yield and quality

Climate variations in greenhouse cultivated with gerbera and relationship with external conditions

Effects of UV radiation on growth and postharvest characteristics of three pot rose cultivars grown at different altitudes

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