Comparison of mineral absorption and nutrient composition of heat-tolerant and non heat-tolerant tomato plants at different root-zone temperatures

Nkansah, George Oduro; Ito, Tadashi

doi:10.1080/14620316.1995.11515315

Cited by 10 publications

(8 citation statements)

References 16 publications

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“…These results are supported by a previous study (Nkansah and Ito, 1995b). Although there have been studied at the optimum air temperature, similar tendencies were reported (Kabu and Toop, 1970;Tindall et al, 1990).…”

Section: Discussionsupporting

confidence: 91%

“…2), which are indicators of root activity (Yamaguchi et al, 1995). These results indicate improved transport of water and nutrients (Klock et al, 1997;Yamaguchi et al, 1995) and support the report that water uptake by roots was maximized at 25°C (Nkansah and Ito, 1995b).…”

Section: Discussionsupporting

confidence: 74%

“…In addition Sasaki and Itagi (1989) reported that fruit yield was increased by root-zone cooling at 20°C in summer tomato production. These increases of growth and fruit yield were explained by enhancing photosynthetic activities (Nkansah and Ito, 1995a), improving water and nutrient uptake (Klock et al, 1997;Nkansah and Ito, 1995b), and increasing root respiration rate (Klock et al, 1997). These parameters were maximized at around 25°C root-zone temperature.…”

Section: Introductionmentioning

confidence: 99%

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Root-zone Cooling at High Air Temperatures Enhances Physiological Activities and Internal Structures of Roots in Young Tomato Plants

Kawasaki

Matsuo

Suzuki

et al. 2013

J. Japan. Soc. Hort. Sci.

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Low-cost technology is needed to alleviate high-temperature injury for high-yield greenhouse tomato production. To acquire information about the physiological and morphological effects of root-zone cooling, we grew young tomato plants for 2 weeks in nutrient solution held at about 25°C, considered to be the optimum temperature for tomato plants. We investigated plant growth, nutrient uptake, root activity (xylem exudation and root respiration rate), root indole-3-acetic acid (IAA) concentration, and internal root structure. The root-zone temperature was maintained at 24.7°C by cooling, while the air temperature and control temperatures were higher than optimum (30.8 and 33.7°C, respectively). Root-zone cooling increased the relative growth rate (RGR) of roots compared with the control, followed by shoot RGR. Root IAA was positively correlated with root RGR. Root-zone cooling increased Ca and Mg uptake as well as root xylem exudation and respiration. It also advanced the development of the internal structure of the xylem near the root tip. Thus, possibly by increasing root activity and root IAA, root-zone cooling promoted root growth and nutrient uptake mediated by the development of the root xylem, and thus shoot growth. These results suggest a physiological and morphological mechanism of growth enhancement by root-zone cooling under high air temperature conditions.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionsupporting

confidence: 74%

Section: Introductionmentioning

confidence: 99%

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Root-zone Cooling at High Air Temperatures Enhances Physiological Activities and Internal Structures of Roots in Young Tomato Plants

Kawasaki

Matsuo

Suzuki

et al. 2013

J. Japan. Soc. Hort. Sci.

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“…These studies concluded that yield correlated significantly with photosynthesis at high air temperatures, but that no such correlation was observed at low air temperatures. Furthermore, a comparison of mineral absorption and nutrient composition between these cultivars (Nkansah and Ito, 1995b) and data on the effect of root-zone temperature on nutrient uptake of tomato (Tindall et al, 1990) suggests that heat-tolerant tomato cultivars may have needs for fertilizer and management practices different from those of nonheat-tolerant types. Thus, this paper reports on the effect of HT versus LT on Downloaded by [UQ Library] at 00:28 02 November 2014 the developmental distribution of phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), iron (Fe), manganese (Mn), copper (Cu), and zinc (Zn) within tomato plants in relation to differential fruit loading.…”

Section: Introductionmentioning

confidence: 98%

Season-Dependent Fruit Loading: Effect on Nutrient Homeostasis of Tomato Plants

Darawsheh¹,

Zerva²,

Bouranis³

2006

Journal of Plant Nutrition

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Greenhouse tomato plants were grown hydroponically during the period of lower temperatures of winter (LT) versus the period of higher temperatures of summer (HT). In these plants, the effect of season on fruit load was dramatic. In order to study the alterations season introduces to the developmental allocation of nutrients within the various organs, concentrations of total nitrogen (N), phosphorus (P), potassium (K), magnesium (Mg), calcium (Ca), iron (Fe), manganese (Mn), zinc (Zn), and copper (Cu) were determined during each season at weekly intervals in the dry mass of leaves and roots and in the extract of upper, middle, and lower parts of the stem. The level of N/ P ratio was always higher in the leaves than in the roots, and these differences were more intense during HT. The short-term changes of ratio in the leaves during HT and LT were positively related with the changes in temperature (r = 0.59 and 0.51 for HT and LT, respectively). In contrast, such correlations in the root were negative (r = −0.54 and r = −0.33 for HT and LT, respectively). The increase of temperature increased P uptake but not its translocation to upper plant parts. HT affected the translocation of N, K, Mg, and Ca more and their uptake less. Fruit load differentially affected the concentration of nutrients. In contrast to total N and K, Ca concentration in plant parts presented a positive relation with the increase of fruit load. Calcium and total N concentration (as opposed to P and micronutrient concentrations) were always higher in the leaves than in the roots. Under HT conditions, P was accumulated in roots in combination with high concentrations of Fe, Zn, and Mn. On the other hand, K and N were accumulated 505 Downloaded by [UQ Library] at 00:28 02 November 2014 506 M. K. Darawsheh et al.in the roots during the period of low temperature in winter. Calcium and K compared with other nutrients presented a pronounced tendency to be transported toward the top of the stem during HT, and their extractable concentration in the upper part of stem presented a significant increase during summer. Extractable K concentration was two to nine times higher than that of the other macronutrients. Our data suggest that the extractable concentration of nutrients of the stem is a good index for the diagnosis of the mineral nutritional status of the plant.

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“…Moreover, conditioning the air of the whole greenhouse requires more energy, and is technically more complicated than varying the HNS temperature (Urrestarazu et al 2008). Changes in the root temperature have shown pronounced effects on the uptake of water and nutrients, such as nitrate and phosphate, on shoot growth, yield and quality in melon, watermelon and tomatoes (Cornillon and Fellahi 1993;Gent and Ma 1998;Nkansah and Ito 1995;Urrestarazu et al 2008). Temperatures of the root zone below 18 C and above 28 C can affect the root status by reducing the dry weight, inhibiting its growth and extension and negatively affecting the uptake of nutrients (Bar-Yosef 2008).…”

Section: Temperaturementioning

confidence: 99%

Advances in Research on Fertilization Management of Vegetable Crops

Tei¹,

Nicola²,

Benincasa³

2017

Advances in Olericulture

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The book series Advances in Olericulture provides a state-of-the-art account of research in olericulture, the applied life science of production and utilization of vegetable crops. The series focuses on various aspects of vegetable science and technology covering primarily but not exclusively species where the vegetative organ is the economically important component. The series of books spans current topics from sustainable fertilization to organic production; from open field cultivation to advanced soilless growing techniques; from vegetable seed and seedling physiology to vegetable quality and safety; from environmental stresses to phyllosphere communities interaction with vegetables; from postharvest biology and technology to minimally processing of vegetables. The series is designed to present the most advanced scientific information available linking basic and applied research for serving olericulturists, research workers, teachers and advanced students.More information about this series at

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Comparison of mineral absorption and nutrient composition of heat-tolerant and non heat-tolerant tomato plants at different root-zone temperatures

Cited by 10 publications

References 16 publications

Root-zone Cooling at High Air Temperatures Enhances Physiological Activities and Internal Structures of Roots in Young Tomato Plants

Root-zone Cooling at High Air Temperatures Enhances Physiological Activities and Internal Structures of Roots in Young Tomato Plants

Season-Dependent Fruit Loading: Effect on Nutrient Homeostasis of Tomato Plants

Advances in Research on Fertilization Management of Vegetable Crops

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