Effects of diurnal temperature alternations and light quality on growth, morphogenesis and carbohydrate content of Cucumis sativus L.

Xiong, Jinqiao; Patil, Grete Grindal; Moe, R.; Torre, Sissel

doi:10.1016/j.scienta.2010.12.013

Cited by 30 publications

(20 citation statements)

References 34 publications

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“…(Stavang et al 2010). Similar results have been reported for cucumber (Cucumis sativus L.) (Patil and Moe 2009;Xiong et al 2011), tomato (Xu 2004), and rice (Oryza sativa L.) (Bai et al 2007). Compared with negative DIFs, 0°C and positive DIFs were more conducive to the dry matter accumulation of aerial parts and roots, resulting in a high root/shoot ratio.…”

Section: Effect Of Dif On Tomato Growthsupporting

confidence: 76%

Effect of difference between day and night temperature on tomato (Lycopersicon esculentum Mill.) root activity and low molecular weight organic acid secretion

Yang

et al. 2016

Soil Science and Plant Nutrition

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The difference between day and night temperature (DIF) is a major environmental factor affecting crop growth, but the mechanisms are not fully understood. We investigated crop performance, root activity and concentrations of low molecular weight organic acids (LMWOAs) secreted by tomato (Lycopersicon esculentum Mill.) root under different DIF conditions. A fixed daily temperature of 25°C and five DIF treatments (−12, −6, 0, 6 and 12°C) were used to grow tomato in a climate chamber. Root/shoot ratio; leaf maximum photosynthetic rate (P max); root activity; total nitrogen (N), phosphorus (P) and potassium (K) concentrations in roots; and types and concentrations of LMWOAs were measured at different growth stages. Results showed that positive and negative DIFs inhibited the dry matter accumulation of aerial parts, while 0°C DIF was conducive to the accumulation. Compared to 0°C DIF, positive DIFs significantly increased root dry weight, P max , root activity and total N, P and K concentrations in roots, while negative DIFs had contrary effects. During the whole growth period, tomato root activity decreased in the order of fruit setting stage, mature stage and flowering stage. Tomato roots secreted oxalic acid, formic acid, malic acid, malonic acid, lactic acid, acetic acid, citric acid, succinic acid and propionic acid under positive DIFs, while acetic acid was not detected in the negative DIF treatments. Oxalic acid concentration was significantly higher than other LMWOAs. Furthermore, in the same growth stage, positive DIFs caused more LMWOA secretion than negative DIFs and 0°C DIF. There were significant positive correlations between the total LMWOA concentration and root activity, root/shoot ratio, P max and total N, P and K concentrations in roots. Based on the results, more attention should be paid to the potential effect on tomato growth posed by DIFs, positive DIFs have higher positive influence than negative DIFs, and 6°C DIF is best for greenhouse tomato growth.

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Section: Effect Of Dif On Tomato Growthsupporting

confidence: 76%

Effect of difference between day and night temperature on tomato (Lycopersicon esculentum Mill.) root activity and low molecular weight organic acid secretion

Yang

et al. 2016

Soil Science and Plant Nutrition

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“…The different responses to R:FR between Expts. 1 and 2 might be related to temperature differences, as several studies have reported interactions between R:FR and day/night temperature differential (DIF) (Blom and Kerec, 2003;Kubota et al, 2000;Moe et al, 1991;Xiong et al, 2011) or with absolute temperature (higher or lower with the same DIF) (Qaderi et al, 2015) on the stem length of various species, where low R: FR combined with positive DIF or higher absolute temperatures result in longer stem length.…”

Section: Discussionmentioning

confidence: 99%

Morphology and Flowering Responses of Four Bedding Plant Species to a Range of Red to Far Red Ratios

Mah

Llewellyn

Zheng

2018

horts

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In greenhouse ornamental crop production, bedding plants grown below high densities of hanging baskets (HBs) tend to be of lower quality. Hanging basket crops can decrease the red to far red ratio (R:FR) of the growing environment below; however, the extent to which decreased R:FR affects plant morphology and flowering of the lower-level crops is unknown. The present study examined effects of R:FR on morphology and flowering of marigold ‘Antigua Orange’ (Tagetes erecta), petunia ‘Duvet Red’ (Petunia ×hybrida), calibrachoa ‘Kabloom Deep Blue’ (Calibrachoa ×hybrida), and geranium ‘Pinto Premium Salmon’ (Pelargonium ×hortorum). Five R:FR light treatments were provided ranging from R:FR 1.1 (representing unfiltered sunlight) to R:FR 0.7 (representing shaded conditions under HBs) using light-emitting diodes (LEDs) in growth chambers, each with identical photosynthetically active radiation (PAR) (400–700 nm) and FR added to achieve the target R:FR ratio. Two experiments using the same R:FR treatments were conducted with day/night temperature regimes of 20 °C/18 °C and 25 °C/21 °C, respectively. In the second experiment, a fluorescent light treatment was included. The results of the second experiment were more dramatic than the first, where reducing R:FR from 1.1 to 0.7 increased height by 11%, 22%, and 32% in marigold, petunia, and calibrachoa, respectively, and increased petiole length in geranium by 10%. Compared with R:FR 1.1, the R:FR 0.7 shortened the time to the appearance of first flower bud by 2 days in marigold, whereas flowering was minimally affected in other species. Compared with pooled data from the LED treatments, fluorescent light increased relative chlorophyll content for all species, reduced height in marigold, petunia, calibrachoa, and geranium by 26%, 67%, 60%, and 48%, and reduced stem dry weight by 28%, 39%, 21%, and 31%, respectively. The differences in morphology observed under fluorescent light compared with LED R:FR treatments indicate that light quality manipulation is a potential alternative to chemical growth regulators in controlled environments such as greenhouses and growth chambers.

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“…For example, phytochromes and gibberellins have been reported to act in coordination to regulate multiple aspects of Arabidopsis development such as flowering and hypocotyls elongation [26]. Significant interaction between difference between day/night temperature (DIF) and end-of-day (EOD) light quality on growth, morphology, dry matter content and carbohydrate status has been observed in cucumbers [27]. Positive DIF can induce similar responses in cucumber elongation growth, day matter and carbohydrate accumulation as EOD-farred light, and further phytochrome status can interact with the responses to alternating day and night temperature.…”

Section: Light Qualitymentioning

confidence: 99%

Control of light environment: A key technique for high-yield and high-quality vegetable production in protected farmland

Yang¹,

Wang²,

Wang³

et al. 2012

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Vegetable crops such as cucumber and tomato are grown widely through the world using not only field but also protected farmland. Sensitive responses of many vegetables have been widely reported to environmental conditions such as light, air temperature, relative humility, and CO2 concentration in the past years. Among these environmental factors, light is considered to be the most important one for vegetable growth and development, especially in protected farmland. Therefore, lots of researches on effects of light environment, including light intensity, light quality, photoperiod, and light direction, on vegetable growth and development have been done in order to optimize the environmental conditions for high-yield and high-quality vegetable production in protected farmland. In this review, recent advances in light environment control for vegetable production in protected farmland have been reviewed and the prospective for the future research has been proposed as well

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Effects of diurnal temperature alternations and light quality on growth, morphogenesis and carbohydrate content of Cucumis sativus L.

Cited by 30 publications

References 34 publications

Effect of difference between day and night temperature on tomato (Lycopersicon esculentum Mill.) root activity and low molecular weight organic acid secretion

Effect of difference between day and night temperature on tomato (Lycopersicon esculentum Mill.) root activity and low molecular weight organic acid secretion

Morphology and Flowering Responses of Four Bedding Plant Species to a Range of Red to Far Red Ratios

Control of light environment: A key technique for high-yield and high-quality vegetable production in protected farmland

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