Effect of Light Conditions and Temperature on Fresh Yield of Some Spice Plants Grown in Containers

Frąszczak, B.; Knaflewski, M.

doi:10.2478/v10032-009-0027-6

Cited by 7 publications

(7 citation statements)

References 24 publications

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“…The variation between growth characteristics of cultivars during summer and spring was likely due to higher temperatures and longer day lengths (Fraszczak and Knaflewski, 2009;Li et al, 1998). In comparison, yield of cultivars for the first spring harvest and both harvests in winter were similar, meaning that different cultivars have the potential to achieve similar yields.…”

Section: Perennial Wall Rocketmentioning

confidence: 93%

Factors Affecting Growth of Perennial Wall Rocket and Annual Garden Rocket

Hall

Jobling

Rogers

2012

International Journal of Vegetable Science

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Popularity of baby leaf salad crops has increased and is likely to continue. Despite their commercial importance, cultivation of these crops is limited by a lack of appropriate production systems. It is important to establish abiotic constraints for efficient production of these crops to improve supply and quality. In separate experiments, responses of perennial wall rocket (Diplotaxis tenuifolia [L.] DC.) and annual garden rocket (Eruca sativa Mill.) to harvest number, seasonal conditions, and fertilizer level were measured. The yield of perennial wall rocket was influenced by the interaction between the cultivar, harvest number, and season. No clear response between these factors was identified, with the highest yields for the cvs. European wild rocket [DT1] and Apollo [DT2] for the first harvest summer crop (2.7 and 2.8 kg/m 2 , respectively) and the cv. Nature [DT3] for the second harvest summer and spring crops (2.5 kg/m 2 , respectively). For annual garden rocket, there was an interaction between the yield and season with the highest yield during summer (3.3 kg/m 2 ), followed by winter (2.7 kg/m 2 ) and spring (1.9 kg/m 2 ). Nitrogen rate did not affect yield or dry weight for either crop, meaning that the species require only little additional nitrogen for efficient growth, and crops may currently be overfertilized. Optimal production is achieved during spring and summer for perennial wall rocket and summer and winter for annual garden rocket, allowing for the interchangeable use of species throughout the growing seasons. The growth of perennial wall rocket improves from first to second harvest but decreases for annual garden rocket, meaning that the perennial species is better suited to at least two harvests.

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Section: Perennial Wall Rocketmentioning

confidence: 93%

Factors Affecting Growth of Perennial Wall Rocket and Annual Garden Rocket

Hall

Jobling

Rogers

2012

International Journal of Vegetable Science

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“…, it was not surprising that the growth of herbs was found to be better at 15˚C/10˚C than at 20˚C/15˚C day/night temperature [8]. By increasing the PAR level, the temperature for maximum growth will increase.…”

Section: Discussionmentioning

confidence: 99%

The Effect of Air Temperature on Growth of Eight Herb Species

Mortensen¹

2014

AJPS

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The effect of different constant air temperatures (18˚C, 21˚C, 24˚C and 27˚C) and variable temperatures (24˚C/18˚C and 27˚C/15˚C in 12 h/12 h periods) on basil, sage, thyme, lemon balm, cilantro, rosemary, oregano and rocket was studied. Supplementary lighting was given 16 h·day −1 at a photon flux density (PFD) of 150 µmol·m −2 ·s −1 (corresponding to 8.6 mol·m −2 ·day −1 photosynthetic active radiation [PAR]). Including daylight the PAR was 29.6 ± 6.9 mol·m −2 ·day −1 as a mean during the experimental period. Increasing the temperature from 18˚C to 27˚C increased the fresh weight in basil (106%), sage (95%), rosemary (126%) and rocket (62%), while an increase from 18˚C to 24˚C increased the weight in lemon balm (78%), cilantro (41%), oregano (40%) and thyme (58%). For the last four species the fresh weight was unaffected by a further increase to 27˚C. No significant difference was found between the 24˚C/18˚C and 27˚C/15˚C treatments. These treatments gave a mean temperature of about 21˚C, and no significant differences were found between these treatments and the constant 21˚C treatment. The plant height generally increased in the same proportion as the fresh weight increased in the different species. No differences were visually observed between the treatments after two weeks under indoor conditions. All species remained green except cilantro and rocket, for which some leaf yellowing took place. A simple test indicated that the flavour increased with increasing temperature (from 18˚C to 27˚C) in all species except cilantro.

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“…While the photoperiod used herein (16 hr) maximizes yield over shorter light durations [32], yield could increase slightly if grown under cooler temperatures, as 'Titan' had the highest yield at 20 °C rather than 25 °C [32]-provided, of course, that the three cultivars tested herein have similar genetic responses to temperature. Thus, when growing any of these cultivars in the LC8 medium equally high yields occur such that growers could choose tailor parsley production to the leaf type preferred by their customer base.…”

Section: Parsleymentioning

confidence: 89%