Synthetic auxins concentration and application time modulates seed yield and quality of carrot by altering the umbel order

Noor, Anam; Ziaf, Khurram; Amjad, Muhammad; Ahmad, Iftikhar

doi:10.1016/j.scienta.2019.109066

Cited by 10 publications

(12 citation statements)

References 26 publications

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“…In agreement with this, ABA accumulated as a transient peak [25-30 days after pollination (DAP)] during carrot seed development and declined during desiccation (40-60 DAP) (de Miranda et al, 2017;Shiota et al, 1998). Exogenous application of auxin during carrot reproduction enhanced the yield, size and quality of fruits, with increased germination percentages and vigour (Noor et al, 2020). Similarly, gibberellin or TIBA application reduced the germination percentages of Heracleum sosnowskyi (Koryzniene et al, 2019).…”

Section: Hormonally Regulated Embryo Growth and Endosperm Breakdown Are Part Of The Unique Germination Programme Of MD Fruitsmentioning

confidence: 54%

“…Auxin transport appears to be important for Apiaceae seed development (Koryzniene et al, 2019) and germination (Figure 6). Although IAA treatment did not appreciably affect celery germination under optimal conditions (Figure 6), it promoted dill fruit germination upon salt stress (Unver and Tilki, 2012) and enhanced the size, germination percentages and vigour of carrot fruits (Noor et al, 2020). IAA biosynthesis by the celery embryo plays a positive role in the control of its growth by cell expansion and division (Figure 7) (Van der Toorn and Karssen, 1992).…”

Section: Apiaceae Fruits As Model Systems To Study the Mechanisms Of The Ancestral Morphological Dormancy Classes And The Germination Of mentioning

confidence: 99%

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Molecular mechanisms and hormonal regulation underpinning morphological dormancy: a case study using Apium graveolens (Apiaceae)

et al. 2021

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Underdeveloped (small) embryos embedded in abundant endosperm tissue, and thus having morphological dormancy (MD) or morphophysiological dormancy (MPD), are considered to be the ancestral state in seed dormancy evolution. This trait is retained in the Apiaceae family, which provides excellent model systems for investigating the underpinning mechanisms. We investigated Apium graveolens (celery) MD by combined innovative imaging and embryo growth assays with the quantification of hormone metabolism, as well as the analysis of hormone and cell-wall related gene expression. The integrated experimental results demonstrated that embryo growth occurred inside imbibed celery fruits in association with endosperm degradation, and that a critical embryo size was required for radicle emergence. The regulation of these processes depends on gene expression leading to gibberellin and indole-3-acetic acid (IAA) production by the embryo and on crosstalk between the fruit compartments. ABA degradation associated with distinct spatiotemporal patterns in ABA sensitivity control embryo growth, endosperm breakdown and radicle emergence. This complex interaction between gibberellins, IAA and ABA metabolism, and changes in the tissuespecific sensitivities to these hormones is distinct from non-MD seeds. We conclude that the embryo growth to reach the critical size and the associated endosperm breakdown inside MD fruits constitute a unique germination programme.

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Section: Hormonally Regulated Embryo Growth and Endosperm Breakdown Are Part Of The Unique Germination Programme Of MD Fruitsmentioning

confidence: 54%

Section: Apiaceae Fruits As Model Systems To Study the Mechanisms Of The Ancestral Morphological Dormancy Classes And The Germination Of mentioning

confidence: 99%

Molecular mechanisms and hormonal regulation underpinning morphological dormancy: a case study using Apium graveolens (Apiaceae)

et al. 2021

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“…After the treatment, the stecklings were dried at room temperature and then transplanted in to the soil at recommended distance. Data of different vegetative and reproductive growth were recorded i.e., A total number of 10 plants were selected randomly and number of leaves, leaves length (cm), plant height (cm), days to flower, number of secondary and tertiary umbel, diameter of primary, secondary and tertiary umbel (mm), weight of primary, secondary and tertiary umbel (g), seed weight of primary secondary and tertiary umbel (g), biological weight (g) (Gul et al, 2009;Noor et al, 2020b). The number of leaves of each plant was counted at completion of vegetative growth leave length is measured from base to apex in cm with the help of measuring scale.…”

Section: Introductionmentioning

confidence: 99%

The impact of auxin on the vegetative and reproductive growth of carrot (Dacus carota L.)

Ali

Manzoor

Naveed

et al. 2023

World J. Biol. Biotechnol.

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Seed is a basic component of every crop species and quality seed is essential for farmers to achieve greater crop production and higher yields. Seed yield can be improved by using the growth hormones. Indole-3-butyric acid (IBA) IBAplays a vital role in reproductive and seed development of crop plant. An investigation is being conducted to determine effect of rooting hormone IBA on reproductive growth that leads to seed developement. Roots treated with three levels of IBA (500 ppm, 1000 ppm and 1500ppm) along with control in a 3 replication. Results showed that roots treated with IBA @ 1500 ppm had taken least number (28.4) of days to flowering with maximum plant height (34.3cm), number of leaves (15.3), leaves length (19.6 cm), number of secondary (10) and tertiary umbels (13.7), diameter of secondary (12.7 cm) and tertiary umbel (4.4), weight of secondary (5.1 g) and tertiary umbel (3.5), seed weight of secondary (4.4 g) and tertiary umbels (1.5 g) and biological weight of the plants (81.0 g) respectively. However, the diameter, weight and seed weight of primary umbel was good in IBA @ 1000 ppm. Thus it is recommended that IBA application at concentration of 1500 ppm can significantly improve growth of carrot seed plants, hence increasing production and seed quality

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“…Thus, natural fertilizers for sustainable productivity and the desired quality of carrot roots are increasingly requested and investigated (Ahmad et al, 2016). These authors further emphasize that an appropriate combination of synthetic and natural fertilizers is a possible way forward to achieve reasonable yield and quality, as balancing the amounts of organic and mineral fertilizers is of great importance toward the improvement of soil fertility status, carrot productivity, and sweetness, as well as the contents of alpha-and beta-carotene (Ahmad et al, 2016); moreover, the production of quality seeds is an essential prerequisite to achieve a good yield of a future crop (Noor et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Potential use of treated wastewater from a cattle operation in the fertigation of organic carrots

Jorge

Silva

Hüther

et al. 2022

Rev. Bras. Ciênc. Ambient.

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The use of treated effluents rich in nutrients and organic matter has intensified in agricultural crops, contributing to the demand for water and fertilizers. The goal of this work was to assess the effects of fertigation with treated dairy cattle wastewater, for the cultivation of carrot (Daucus carota) when applied in four different doses, under field conditions, on nutrient accumulation, productivity, and health quality in the carrot (D. carota). Wastewater from treated cattle (WTC) was treated in a pilot treatment unit (PTU). Cultivation was carried out in two beds, and the WTC applied by drippers. Nitrogen (N) was considered the base element for the dose calculation, and a 100% N dose was equivalent to 150 kg ha−1. WTC doses of 0, 100, 200, and 300% N were evaluated. Productivity was evaluated at 70 and 120 days after sowing, in the aerial part (fresh and dry mass and accumulation of nutrients), in the main roots (fresh and dry mass, accumulation of nutrients, diameter, length, and sanitary quality), and as the total productivity of the two organs. As a result, an increase in productivity was observed for all treatments with WTC and accumulation of Ca and Mg. The roots did not present contamination; therefore, the carrots were fit for human consumption. It was concluded that the application of WTC in organic cultivation of carrots is a viable alternative means of plant fertilization, providing higher root productivity than the national average, reaching 72.6 t ha−1 for a dose of 100% N, without compromising on sanitary quality and is suitable for human and animal consumption.

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Synthetic auxins concentration and application time modulates seed yield and quality of carrot by altering the umbel order

Cited by 10 publications

References 26 publications

Molecular mechanisms and hormonal regulation underpinning morphological dormancy: a case study using Apium graveolens (Apiaceae)

Molecular mechanisms and hormonal regulation underpinning morphological dormancy: a case study using Apium graveolens (Apiaceae)

The impact of auxin on the vegetative and reproductive growth of carrot (Dacus carota L.)

Potential use of treated wastewater from a cattle operation in the fertigation of organic carrots

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