Phenology Studies and the Prediction of Harvest Dates of Broccoli in the Lockyer Valley.

Fyffe, D.C.; Titley, M.E.

doi:10.17660/actahortic.1989.247.7

Cited by 6 publications

(6 citation statements)

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“…When plants are grown in culture the aim is often to achieve the best possible growth, by removing all environmental constraints. In other words, we provide optimum environmental conditions where the plant's inherent growth rate can be expressed (Eyffe and Titley, 1989).…”

Section: Introductionmentioning

confidence: 99%

Growth Response of Broccoli (Brassica Oleracea) to Different Planting Date at Jimma South Western Ethiopia

Getachew

Abraham

Melese

2016

Int. J. Res. Granthaalayah

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The current study was conducted at Jimma University College of Agriculture and Veterinary Medicine of Ethiopia to find the effect different planting date on growth performance of broccoli. Seeds were sown in well-prepared trays on 23th April, 8th March, and 23th March each in 15 days interval at the year 2016 cropping season through irrigation. Seedlings were transplanted when 3-4 true leaves were developed after 30 days. The growth parameters were measured stem girth, leaf number, leaf diameter, fresh leaf and root weight, root length, leaf length and plant height. Broccoli sowed on 23th February produced more and longer leaves, taller plant, fresh weight of roots and leaf diameter respectively. Generally, results on various parameters showed that maximum growth was obtained by planting broccoli on 23th of February. Hence, it is recommended for general cultivation of broccoli under Jimma growing condition. Moreover, as the crop is new for Jimma area further studies are needed with regard to the improvement of agronomic practices for broccoli cultivation in Jimma and similar agro ecology.

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Section: Introductionmentioning

confidence: 99%

Growth Response of Broccoli (Brassica Oleracea) to Different Planting Date at Jimma South Western Ethiopia

Getachew

Abraham

Melese

2016

Int. J. Res. Granthaalayah

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“…Due to the difficulty of predicting the end of the juvenile stage, thermal time models have been used to predict floral initiation in broccoli (Diputado and Nichols, 1989;Fyffe and Titley, 1989;Pearson et al, 1994). The temperature response for crop development is often defined in terms of three cardinal temperatures: base (T base ), optimum (T opt ) and maximum (T max ).…”

Section: Introductionmentioning

confidence: 99%

“…There are variations in the reported cardinal temperatures from sowing to floral initiation. Some researchers used a standard T base of 4.5 °C for all cultivars (Fyffe and Titley, 1989) while others calculated a T base of 1 °C with a T opt of 21 °C (Diputado and Nichols, 1989). There are also differences in the reported cardinal temperatures from floral 4 initiation to harvest maturity.…”

Section: Introductionmentioning

confidence: 99%

Predicting broccoli development I. Development is predominantly determined by temperature rather than photoperiod

Tan

Birch

Wearing

et al. 2000

Scientia Horticulturae

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temperatures of 0 and 20 °C, respectively were consistent across cultivars, but thermal time requirements were cultivar specific. Differences in thermal time between cultivars during FIHM were small and of little practical importance, but differences in thermal time during EFI were large. Sensitivity to photoperiod and solar radiation was low in the three cultivars used. When the thermal time models were tested on independent data for five cultivars ('Fiesta', 'Greenbelt', 'Marathon', 'CMS Liberty' and 'Triathlon') grown as commercial crops over two years, they adequately predicted floral initiation and harvest maturity.

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“…Therefore, the required number of leaves is primarily related to the genotype [8,13,15,17], while secondarily and partially, it is modified by the temperature in the plant growth environment [1, [13][14][15][18][19][20][21].…”

Section: Head Initiationmentioning

confidence: 99%

The Impacts of the Emerging Climate Change on Broccoli (Brassica oleracea L. var. italica Plenck.) Crop

2022

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Broccoli (Brassica oleracea L. var. italica Plenck.) is nowadays one of the most important vegetable crops worldwide, with an increasing demand by the market, due to its high nutritional value. Based on the optimal temperature range, its cultivation in the temperate regions takes place from late summer to late spring. Broccoli cultivation nowadays faces many challenges, such as the profitable production throughout the year, as well as during conditions of an increased temperature, induced by the emerging climate change, as well as the possibility of introducing the cultivation to subtropical and tropical areas. The modern genotypes (F1 hybrids) differ significantly among themselves in terms of the requirements for the head’s formation, which, however, has not been fully elucidated. In this direction, breeders have been developing programs internationally since the early 1990s, in order to create genotypes that will be adapted to temperatures higher than the optimal range, having, however, a relatively limited initial germplasm pool. The purpose of this review is to present extensively the temperature requirements in the broccoli crop production and to highlight the impacts of the emerging climate change.

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Phenology Studies and the Prediction of Harvest Dates of Broccoli in the Lockyer Valley.

Cited by 6 publications

References 0 publications

Growth Response of Broccoli (Brassica Oleracea) to Different Planting Date at Jimma South Western Ethiopia

Growth Response of Broccoli (Brassica Oleracea) to Different Planting Date at Jimma South Western Ethiopia

Predicting broccoli development I. Development is predominantly determined by temperature rather than photoperiod

The Impacts of the Emerging Climate Change on Broccoli (Brassica oleracea L. var. italica Plenck.) Crop

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