Effects of Plant Population and Season on Growth and Development of Safflower (Carthamus Tinctorius L.) as an Ornamental Plant

Emongor, V.E.; Oagile, Otsoseng; Kedikanetswe, Boipuso

doi:10.17660/actahortic.2015.1077.3

Cited by 11 publications

(7 citation statements)

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“…The generally negative effect of plant density above 100,000 plants ha -1 on on LAI, LAD and total chlorophyll content may be attributed to inter-and intra-plant competition for essential growth factors such as nutrients, sunlight and water. This observation is in agreement to those reported in literature (Sharifi et al, 2012;Vaghar et al, 2014;Emongor et al, 2015). From the current study, NAR followed the same trend and reduced at plant densities above 100,000 plants ha -1 .…”

Section: Discussionsupporting

confidence: 94%

Safflower genotype by plant density on yield and phenological characteristics

Moatshe¹,

Emongor²,

Balole³

et al. 2020

Afr. Crop Sci. J.

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Safflower (Carthamus tinctorius L.) is a temperate plant grown in arid and semi-arid regions of the world, and is the most drought tolerant oilseed crop. The objective of this study was to evaluate the effect of genotype and plant density on growth, phenology and yield of safflower. Treatments included five safflower genotypes and six plant densities laid out in a randomised block design. Increasing plant density from 62,500 to 100,000 plants ha-1 significantly (P < 0.05) increased leaf area index (LAI), leaf area duration (LAD), total leaf chlorophyll content (Tchl) and net assimilation rate (NAR) at all phenological stages in both winter and summer. For all genotypes, the highest LAI, LAD, Tchl, NAR, total dry matter accumulation (TDM) and seed yield resulted at a plant density of 100,000 plants ha-1. Maximum LAI, LAD, NAR and Tchl were observed at 50% flowering, compared to other phenological stages in all genotypes and plant densities. In general, genotype ‘Sina’ at 100,000 plants ha-1 significantly (P < 0.05) had the highest LAI, LAD, Tchl, TDM and seed yield compared to other genotypes and plant densities in both summer and winter.

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Section: Discussionsupporting

confidence: 94%

Safflower genotype by plant density on yield and phenological characteristics

Moatshe¹,

Emongor²,

Balole³

et al. 2020

Afr. Crop Sci. J.

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“…Most studies on safflower plant density has been based on its impact on vegetative growth, seed yield, yield components and oil content under different genotypes; and cropping systems (Amoughein et al, 2012;Emongor et al, 2013;Sampaio et al, 2017). However, information on the influence of safflower plant density and genotype on oil content and composition in the sub-Saharan environment is still unavailable, except the work of Emongor et al (2015) which is not sufficient. Therefore, the objective of this study was to evaluate the influence of safflower plant density and genotypes on seed oil content and fatty acid profiles in Botswana.…”

Section: Introductionmentioning

confidence: 99%

Genotype and plant density effects on oil content and fatty acid composition of safflower

Moatshe¹,

Emongor²,

Balole³

et al. 2020

Afr. Crop Sci. J.

Self Cite

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Safflower (Carthamus tinctorius L.) is a multipurpose oilseed crop that is tolerant to drought, saline, heat and cold conditions; and yields high quality edible seed oil. The objective of this study was to evaluate the effect of plant density and genotypes on oil content and fatty acid composition of safflower. A field experiment was conducted in the years 2015 and 2016, during winter and summer seasons. Treatments included five safflower genotypes and six plant densities. Genotype and plant density significantly interacted (P < 0.05) to influence oil content and fatty acid composition of safflower. Increasing plant density from 62,500 to 100,000 plants ha-1 significantly (P < 0.05) increased the oil concentration from 16 to 54%, depending on the interaction between genotype and plant density and genotype by environment (winter and summer seasons). However, as plant density increased from 100,000 to 200,000 plants ha-1, safflower oil content significantly (P < 0.05) decreased in all genotypes. The lowest and highest oil contents was produced by genotype ‘Gila’ planted at density 62,500 or 200,000; and ‘Sina’, ‘Pi 537 636’ at 100 000 or 125, 000 plants ha-1 in winter or summer, respectively. Fatty acid composition was significantly influenced by genotype and plant density interactions during the two growing seasons. The main fatty acids identified included linoleic, oleic, stearic and palmatic. There was a significant (P < 0.05) increase in linoleic acid content and a decrease in oleic, palmatic and stearic as plant density increased from 62,500 to 100,000 plants ha-1, depending on genotype or growing season. Genotype ‘Sina’ at 100,000 plants ha-1 produced the highest oil content and with high unsaturated fatty acid concentrations.

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“…Osman and Awed (2010) found that plant spacing had significant effects on sunflower growth characteristics. Emongor et al (2015) showed that plant density had significant effects on growth and development of safflower, and stated that increasing safflower plant density from 100,000 to 250,000 plants ha -1 significantly reduced branches number/plant and leaf area/plant. Also, Sampaio et al (2017) on safflower showed that increasing densities reduce the number of branches.…”

Section: B Effect Of Plant Spacing: Growth Charactersmentioning

confidence: 99%

Effect of Iron and Zinc Foliar Application and Plant Spacing on Productivity of Oil Lettuce (Lactuca scariola var. Oleifra) in Calcareous Soils تاثیر الرش الورقى بالحدید والزنک ومسافات الزراعة على انتاجیة خس الزیت بالأراضى الجیریة

قناوى¹

2019

Journal of Plant Production

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Field trials were carried out during 2016/17 and 2017/18 growing seasons at Mariout Experimental Station, Desert Research Center, Egypt, to investigate the effect of foliar application with iron and zinc (control, 150 mg iron /L, 100 mg zinc /L and 150 mg iron + 100 mg zinc /L) and different plant distances (10, 20 and 30 cm between plants) on growth, yield and yield components as well as oil content of prickly oil lettuce under calcareous soil conditions. The experimental design was a split plot, whereas the main plots involved iron and zinc treatments and the sup main plots involved plant distances. The obtained results cleared that iron and zinc foliar application significantly affected on all traits, except number of branches/plant and harvest index, also plant spacing significantly affected on all traits, except plant height and 1000-seed weight during the two seasons, respectively. The interaction between iron and zinc foliar application and plant spacing had significant effects on all traits as an average for both seasons. Foliar application of iron and zinc together as a combination treatment caused an increase in all yield traits as compared with untreated plants in both seasons. Increasing the distance between plants from 10 to 20 and/or 30 cm significantly decreased seed yield/fad and seed yield/plant in both seasons. Oil percentage was increased when plants were transplanted at 20 cm a part. However, the oil yield was gradually decreased by increasing the distance between plants up to 30 cm. In general oil lettuce plants which treated by150 mg iron + 100 mg zinc /L and transplanted at 10 cm a part produced the highest values of seed and oil yield.

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Effects of Plant Population and Season on Growth and Development of Safflower (Carthamus Tinctorius L.) as an Ornamental Plant

Cited by 11 publications

References 0 publications

Safflower genotype by plant density on yield and phenological characteristics

Safflower genotype by plant density on yield and phenological characteristics

Genotype and plant density effects on oil content and fatty acid composition of safflower

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