Effects of Root Temperature on the Absorption of Water and Mineral Nutrients by Strawberry Plants ^|^lsquo;Reiko^|^rsquo; Grown Hydroponically

Udagawa, Yuji; Ito, Tadashi; Gomi, K.

doi:10.2503/jjshs.59.711

Cited by 17 publications

(8 citation statements)

References 4 publications

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Section: Discussionmentioning

confidence: 99%

“…Both high temperature treatments imposed significant reduction in xylem sap in the soil Expt. Xylem sap nitrate concentration, a major xylem sap solute, is reported to be particularly sensitive to elevated root-zone temperature in some plant species (Udagawa et al 1991). Thus, it is possible that the reduction in xylem sap could be the reason for the reduction in chlorophyll content under high rootzone temperature (I. S. A. Tahir, N. Nakata, T. Yamaguchi, J. Nakano & A. M. Ali, unpublished data) while plants under high shoot/root-zone temperature adapted to the limited xylem sap by reducing their leaf area and shoot growth.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Influence of High Shoot and Root‐Zone Temperatures on Growth of Three Wheat Genotypes during Early Vegetative Stages

Tahir

Nakata

Yamaguchi

et al. 2008

J Agronomy Crop Science

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Keywords high shoot/root-zone temperature; net assimilation rate; relative growth rate; specific root weight; wheat; xylem sap flow rate Correspondence I. AbstractHigh temperatures, whether of shoot or root, are reported to affect shoot and root growth of various plant species. The scanty information available on the differential response of wheat genotypes to high shoot and root-zone temperatures triggered this investigation to study the response and adaptation of shoot and root growth of three wheat genotypes to high shoot and root-zone temperatures during early growth stages. Three wheat genotypes; Fang (heat tolerant), Siete Cerros (heat sensitive) and Imam (recent cultivar adapted to a hot irrigated environment) were grown in soil and hydroponically. Three shoot/rootzone temperatures (23/23, 23/35 and 35/35°C for the soil experiment and 22/22, 22/38 and 38/38°C for the hydroponic experiment) were applied at three-leaf growth stage. High root-zone temperature alone or combined with high shoot temperature reduced xylem sap flow rate, root dry weight, root length and root/shoot ratio. Unexpectedly, shoot fresh and dry weights and relative growth rate (RGR) were not significantly affected by the high root-zone temperature except for the susceptible genotype, Siete Cerros, after prolonged exposure in the hydroponic experiment. In contrast, high shoot/root-zone temperature significantly reduced shoot fresh and dry weights from as early as the first week of the hydroponic experiment. The 38/38°C treatment also caused significant reduction in RGR and net assimilation rate during the first 2 weeks, but no significant differences were found during the last 2 weeks compared with 22/22°C. Interesting responses were observed among genotypes in terms of shoot and root dry weights and root/shoot ratio at 38/38°C treatment. The heat-sensitive Siete Cerros showed the least reduction in these traits during the first 2 weeks while the heat-tolerant Fang and Imam responded by greatly reducing their shoot and root weights. The situation was almost reversed with the duration of treatments such that Siete Cerros became the most affected genotype while Fang and Imam were better adapted to high shoot/root-zone temperature. Specific root weight was the exceptional trait that increased under high temperature treatments. Results indicate that despite the reduction in root length and weight observed under high root-zone temperature, shoot growth was not much affected suggesting that the use of suitable cultivar coupled with proper management could alleviate most of high root-zone temperature effects during early growth stages.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Influence of High Shoot and Root‐Zone Temperatures on Growth of Three Wheat Genotypes during Early Vegetative Stages

Tahir

Nakata

Yamaguchi

et al. 2008

J Agronomy Crop Science

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“…Grown in tropical greenhouses under cool RZTs, cool-season vegetable crops with well-developed root systems could enhance water and mineral uptake, thus, preventing water deficit and mineral nutrient deficiency [53,63]. The effects of RZT on water and mineral nutrient uptake have also been reported by other teams in strawberry [70], tomato, muskmelon, and honey locust crops [71].…”

Section: Greenhouse Through Manipulation Of Root-zone Temperature (Rzt)mentioning

confidence: 80%

Enhancing Productivity and Improving Nutritional Quality of Subtropical and Temperate Leafy Vegetables in Tropical Greenhouses and Indoor Farming Systems

2024

Horticulturae

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The total land used for land-based food farms is less than 1% in Singapore. As a result, more than 90% of Singapore’s food needs are imported. To strengthen food security, Singapore has set a target to develop the capability and capacity of the agri-food industry to locally produce 30% of its nutritional needs by 2030. To achieve this goal, technology is the key to helping farms to “grow more with less”. This review first discusses how aeroponic systems have been adapted for growing all kinds of leafy vegetables in the tropics through the manipulation of root-zone temperature and heat priming to save power energy. Growing vegetable crops indoors and in greenhouses not only allows the growers to achieve high productivity but also enables them to enhance nutritional values. The second part of this paper emphasizes how to achieve substantial yield through deficit irrigation with higher nutritional quality in a cost-effective manner. Growing crops vertically has become increasingly popular, as it increases land use. We establish a commercially viable LED-integrated aeroponic system to grow vegetables vertically. The last part of the paper discusses the impacts of LED spectral quality, quantity, and duration on vegetable production.

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“…Ganmore-Neumann and Kafkafi (1983) found that a high root temperature (32°C) decreased dry weight and leaf area. Utagawa et al (1989Utagawa et al ( , 1991 observed that a relatively high temperature (23°C) in the culture solution decreased root weight, nutrient absorbance, and photosynthesis rate in everbearing cultivars in a nutrient film technique system. Also, Lieten (1997) observed that higher root temperatures negatively affected vegetative development in his experiment ranging from 12 to 24°C.…”

Section: Discussionmentioning

confidence: 99%

Effect of Cooling of Medium on Fruit Set in High-bench Strawberry Culture

Ikeda¹,

Yamazaki²,

Kumakura³

et al. 2007

horts

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We demonstrated the effect of cooling of the medium on the fruit set of strawberries (Fragaria × ananassa Duch.) grown on high benches for forcing culture. The cooling by water evaporation promoted by a fan enabled to cool the medium by an average of several degrees compared with no cooling. When runner plants were transplanted in late summer, cooling accelerated flower bud emergence almost 10 days on the primary axillary branch compared with plants grown in uncooled medium. Also, with cooling, fruit was harvested from the inflorescence of the primary axillary branch almost 10 days earlier. We expect that this technique will allow early transplanting around the end of summer and will shorten the time between fruit set on the terminal inflorescence and that on the inflorescence of the primary axillary branch.

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Effects of Root Temperature on the Absorption of Water and Mineral Nutrients by Strawberry Plants ^|^lsquo;Reiko^|^rsquo; Grown Hydroponically

Cited by 17 publications

References 4 publications

Influence of High Shoot and Root‐Zone Temperatures on Growth of Three Wheat Genotypes during Early Vegetative Stages

Influence of High Shoot and Root‐Zone Temperatures on Growth of Three Wheat Genotypes during Early Vegetative Stages

Enhancing Productivity and Improving Nutritional Quality of Subtropical and Temperate Leafy Vegetables in Tropical Greenhouses and Indoor Farming Systems

Effect of Cooling of Medium on Fruit Set in High-bench Strawberry Culture

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