The Influence of Flower Structures on the Seeds Productivity of the Carrot Breeding Lines

Dyki, B.; Nowak, Renata; Stępowska, A.

doi:10.2478/v10032-010-0001-3

Cited by 4 publications

(6 citation statements)

References 7 publications

(5 reference statements)

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“…Only male fertile flowers produced pollen. Hybrid lines grown within the same field often vary in the amount and sugar quantity of nectar and can often vary in flowering intensity (Erickson et al 1979;Dyki et al 2010). Nectar quantity and quality were not measured in this study.…”

Section: Carrot Hybrid Linesmentioning

confidence: 93%

“…Hybrid lines grown within the same field often vary in the amount and sugar quantity of nectar and can often vary in flowering intensity (Erickson et al. 1979; Dyki et al. 2010).…”

Section: Methodsmentioning

confidence: 99%

“…The male sterile line contained white-petalled flowers typically with two green styles (up to 1.5 mm in length) or rarely with one. Instead of producing anthers, flowers produced white-petal-like structures (known as petaloid sterility) common among male sterile varieties (Dyki et al 2010). Flowers on the male fertile umbels contained protruding green anthers (approximately 2 mm in length) and five white petals.…”

Section: Carrot Hybrid Linesmentioning

confidence: 99%

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Hybrid carrot seed crop pollination by the fly Calliphora vicina (Diptera: Calliphoridae)

Howlett

2011

J Applied Entomology

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Many insect species can contribute to crop pollination; however, most growers remain highly dependent on the managed honey bee (Apis mellifera L.) for this service. The European Blue Blow Fly Calliphora vicina Robineau‐Desvoidy, 1830 is one species with potential use as a pollinator. It occurs worldwide and is easy to rear. Caged trials conducted within a hybrid carrot (Daucus carota L.) seed crop found C. vicina to be an effective pollinator. Seed yield (number and weight) from field‐grown carrot plants caged with C. vicina, but excluding all other large flower visitors (body width > 3 mm), was similar to seed yield from uncaged plants in the presence of honey bees (Apis mellifera L.) and other insects. In contrast, caged plants without C. vicina produced 10‐fold less seed. Under open field conditions, C. vicina spent an average of 71.0 s per umbel compared to 54.4 s for honey bees; however, under caged conditions, C. vicina spent more time on average per umbel (128.9 s). Counts of C. vicina and honey bees on umbels outside of cages and C. vicina inside cages found that honey bees were most abundant on days with maximum temperature > 25°C, while C. vicina was more abundant on cooler days around 20°C. C. vicina may therefore be a useful pollinator of crops grown in isolation cages for plant breeding purposes as well as in open fields when climatic conditions are less favourable for optimal honey bee activity.

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Section: Carrot Hybrid Linesmentioning

confidence: 93%

“…Hybrid lines grown within the same field often vary in the amount and sugar quantity of nectar and can often vary in flowering intensity (Erickson et al. 1979; Dyki et al. 2010).…”

Section: Methodsmentioning

confidence: 99%

Section: Carrot Hybrid Linesmentioning

confidence: 99%

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Hybrid carrot seed crop pollination by the fly Calliphora vicina (Diptera: Calliphoridae)

Howlett

2011

J Applied Entomology

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“…Braak & Kho (1958) stated that pollinating insects for pollination were contradictive with seed production decreasing. Dyki et al (2010) added that morphological characters that can reduce the number of seeds were green petals, small nectar, ovule and embryo degenerations, anthers and pollens degenerations, and the absence of ovaries.…”

mentioning

confidence: 99%

“…The minimum standard of quality seed is 75% as mentioned in Minister of Agriculture Decree no: 71/Kpts/SR.130/D/9/2017. Seed germination percentage influenced by some factors, i.e., condition before planting (seed condition and storage environment) (Purbojati & Suwarno, 2006); pollination technique and fertilization (Dyki, et al, 2010); environmental stress often decreases the rate of seed germination (Delian & Lagunovschi-Luchian, 2015); high plant density or tight plant spacing (Merfield, et al, 2001).…”

mentioning

confidence: 99%

The response of Stecklings Age and Plant Spacing on Carrot Seed Quality and Production

Manik¹,

Tarigan²,

Barus³

2020

J. Trop. Hort

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The quality of seed needs to be considered in carrot seed production to maintain its productivity. The research aims to find out the response of stecklings age and plant spacing on carrot seed quality and production. This research was held on July 2018 – April 2019 in Berastagi field trial (1340 m MSL). The experiment used Randomized Complete Block Design (RCBD) with two factors, i.e., stecklings age (2 and 3 months) and plant spacing (25, 50, 75, and 100 cm), replicated four times (32 experiment units), 10 plants from each experiment units were taken as samples. The result showed that stecklings age and plant spacing were affected to plant vegetative and generative stages. The combination of 2-month stecklings and 50 cm plant spacing increased the number of secondary umble, if compared to cultivation, which was generally used by the farmer (3-month stecklings and 25 cm plant spacing). The best quality of carrot seed was obtained from the combination of 3-month stecklings and 50 cm plant spacing.

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Level of Sterility and Morphological Flowers Differentiation of Petaloid Male-sterile Plants of Carrot

Kozik¹,

Nowak²,

Nowakowska³

et al. 2012

JAS

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Evaluation of the phenotypic uniformity within the carrot petaloid cytoplasmic male sterile (CMS) BC 1 -BC 4 backcross populations in relation to several morphological traits of petaloidy expression was assessed. A high variability in the sterility level within and between most of the progenies was observed. As a result of the carried out investigations, the eight CMS lines could be divided into three groups according to the sterility level: 1/ one line with the highest number of male-sterile plants (100%) occurring in all backcross populations of one line, 2/ four lines showed large shifts for the percentage of sterile plants as the backcross method progressed, 3/ three lines presented high fluctuations in the individual backcross populations. In 18 out of 25 male sterile backcross populations, white color of the corolla dominated (72%) over green color and in most crosses the highest number of white-flowered petaloidy type was achieved for the populations most advanced in backcrossing. Examinations of the carrot flowers by means of the transmitted-light microscope revealed that majority of the populations were characterized by other beneficial morphological flowers traits: well developed nectarines, pistils, and styles.

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The Influence of Flower Structures on the Seeds Productivity of the Carrot Breeding Lines

Cited by 4 publications

References 7 publications

Hybrid carrot seed crop pollination by the fly Calliphora vicina (Diptera: Calliphoridae)

Hybrid carrot seed crop pollination by the fly Calliphora vicina (Diptera: Calliphoridae)

The response of Stecklings Age and Plant Spacing on Carrot Seed Quality and Production

Level of Sterility and Morphological Flowers Differentiation of Petaloid Male-sterile Plants of Carrot

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