Effect of Sowing Date and Planting Distance on Growth and Yield of Two Cultivars of Roselle (Hibiscus sabdariffa var. sabdariffa)

Okosun, L. A.; ., M.D. Magaji; Yakubu, A. I.

doi:10.3923/jps.2006.297.305

Cited by 9 publications

(5 citation statements)

References 1 publication

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“…The results presented in Table (1) indicate that there are significant differences between the two mowing periods in their effect on plant height, if the second mowing period gave the highest plant height and reached (97.84) cm, while the first mowing period gave the lowest rate and reached (87.24) cm The increase in the height of the plant at the second moment and the decrease in the height of the plant at the first moment may be attributed to the appropriate environmental conditions as a result of exposure to a longer period of daily lighting and an increase in photosynthesis and the materials resulting from it. To lower plant height (Okosun et al, 2006), this result is consistent with Jahangir, (2008) and Samurai, (2014).…”

Section: -Plant Height (Cm)supporting

confidence: 90%

Influence of Two Cutting Dates and Foliar Spray of Tryptophan on Some Physiological Traits and Active Substance of Lemon Grass Cymbopogon Citratus L.

Raoof¹,

Al-Saad²,

ALhammedi³

2021

PLANT ARCHIVES

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The experiment was carried out in the Jiman region, which is approximately 15 km north east of Kirkuk Governorate, at degrees 35, -29, 134 north and 45, -31, 164 east and at an altitude of 559 m from sea level during the agricultural season (2019/2020) To study the effect of Foliar Spray of amino acid tryptophan and two cutting dates on some physiological traits, oil yield and specific qualities of lemon grass Cymbopogon citratus L. By designing the randomes Block design (RCBD), with Split-Plots cut system was combined with three replicates. Four concentrations of tryptophan amino acid were used (0, 150, 250, 350) mg. L -1 , since the plant was mowed during the first data in 1/6/2019 and the second on 1/8/2019, The averages were chosen according to the least significant difference test (L.S.D) to compare the arithmetic mean at the 5% probability level, and the results indicated that the date of the second Cutting date of lemon grass in physiological traits and the active substance exceeded the first date in these traits. As a result of the fact that the plants that were stuffed in the second date took their opportunity to form a strong root system that has the ability to absorb and quickly compensate the foodstuffs and convert them to the vegetative group in addition to the appropriate environmental conditions during their growth period, which was reflected in physiological characteristics and the active substance There is a steady increase in physiological traits and active substance by increasing the concentrations of the amino acid tryptophan sprinkled on lemon valerian plants due to the vital role that this acid plays in the internal physiological processes and appropriate environmental conditions for the cultivated plants. And that the increase in the concentrations of the amino acid tryptophan with plants for the second time reflected on improving the physiological characteristics and the active substance of the lemon valerian plant as a result of the compatibility of the growth of these plants with the increase in the concentrations of the amino acid of tryptophan favorable environmental conditions reflected on the plant.

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Section: -Plant Height (Cm)supporting

confidence: 90%

Influence of Two Cutting Dates and Foliar Spray of Tryptophan on Some Physiological Traits and Active Substance of Lemon Grass Cymbopogon Citratus L.

Raoof¹,

Al-Saad²,

ALhammedi³

2021

PLANT ARCHIVES

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“…Higher leaf area might be due congenial weather conditions during that period which could be attributed to the increased growth expressed by increased number of branches and more plant spread which determines the photosynthetic ability, growth and further dry matter production. Similar findings were observed by Nilofer et al, (2015) in menthol mint, Solanki and Shaktawat (1999) in isabgol, Agarwal et al, (2004) in ashwagandha, Okosun et al, (2006) in roselle, Singh and Singh (2006) in kalmegh, Shamaraj et al, (2010) in ashwagandha (Table 2).…”

Section: Physiological Parameterssupporting

confidence: 84%

Influence of Different Planting Dates on Growth, Yield and Quality of Menthol Mint (Mentha arvensis L.) Cultivars during Kharif Season

Desai¹,

Pushpa²,

Srikantaprasad³

et al. 2019

Int.J.Curr.Microbiol.App.Sci

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The investigation on menthol mint cultivars Kosi, Kushal, Sambhav, Saksham and Himalaya was carried out to study the effect of different planting dates (5 th July, 20 th July and 5 th August) in kharif 2017-18 on growth, yield and quality in split plot design with three replications under Northern dry zone of Karnataka. The results revealed that, irrespective of cultivars, planting on 5 th July was better with the highest values for average plant height, spread, number of branches, leaf area and total dry matter accumulation, resulting in the highest fresh and shade dried herbage yield (15.76 and 11.90 t/ha, respectively) along with the highest essential oil content (0.79%) and essential oil yield (95.44 kg/ha). Among different cultivars cv. Sambhav recorded maximum plant spread and number of branches, leaf area and total dry matter accumulation, fresh and shade dried herbage yield (13.53 and 11.10 t/ha) and essential oil content (0.78) providing the highest essential oil yield (88.48 kg/ha) with the maximum menthol content (72.06 %). Sambhav planted on 5 th July resulted in the maximum net returns (₹ 93,227 ha -1 ) with a B: C ratio of 2.76.

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“…Thus, 60 kgN/ha appeared to produce the highest yield, suggesting it could be the optimum N application rate. [22] also reported a positive response of dry calyx yield to nitrogen application. The increase in dry calyx yield of roselle as a result of nitrogen application may be attributed to an increase in photosynthetic area exhibited as a result of good vegetative growth.…”

Section: Dry Calyx Yieldmentioning

confidence: 90%

“…The inorganic and organic fertilizer significantly (p < 0.05) increased leaf production in soil amended plots more than the control plot. This underscores the importance of nitrogen during the vegetative growth of crop plants [22]. The higher number of leaves in the soil-amended plots might be due to the available nutrients supplied by the organic and inorganic fertilizers which in turn might be due to higher nutrient composition and capacity to increase availability of native soil nutrient through higher biological activity [23].…”

Section: Number Of Leaves Per Plantmentioning

confidence: 93%

Yield of Roselle (<i>Hibiscus sabdariffa</i> L.) as Influenced by Manure and Nitrogen Fertilizer Application

Yirzagla,

Quandahor,

Amoako

et al. 2023

AJPS

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Field experiments were carried out on roselle (Hibiscus sabdariffa L) during the 2019 and 2020 cropping seasons at the CSIR-SARI Research Station at Manga in the Upper East Region of Ghana. The aim of the experiment was to study the response of roselle to cowdung, nitrogen fertilizer and their interaction on the growth and yield of roselle. The treatments consisted of factorial combination of five rates of cowdung (0, 1.5, 2.5, 3.5 and 4.5 t/ha) and five levels of nitrogen (0, 20, 40, 60 and 80 kgN/ha) laid out in a randomized complete block design and replicated three times. Data were collected on days to 50% flowering, plant height, number of leaves per plant and dry calyx yield. The results indicated that differences in dry calyx yield due to the manure and nitrogen fertilizer effects were highly significant (P < 0.01). Application rate of 2.5 t/ha manure recorded the highest yield of 340 kg/ha and 308.1 kg/ha in 2019 and 2020 respectively. Increasing manure rate from 2.5 -3.5 t/ha did not result in significant increases in dry calyx yield. The four rates differed significantly from the control which had the least calyx yield of 190.3 kg/ha and 180 kg/ha in 2019 and 2020 respectively. Nitrogen rate of 60 kg/ha recorded the highest dry calyx yield of 510.5 kg/ha and 370.4 kg/ha in 2019 and 2020 respectively which were significantly different from calyx yields recorded by other treatments. The trend on partial budget analysis was consistent in both seasons with the highest yielding treatments (2.5 t/ha cowdung manure and 60 kg/ha) recording the highest net benefit while the control

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Effect of Sowing Date and Planting Distance on Growth and Yield of Two Cultivars of Roselle (Hibiscus sabdariffa var. sabdariffa)

Cited by 9 publications

References 1 publication

Influence of Two Cutting Dates and Foliar Spray of Tryptophan on Some Physiological Traits and Active Substance of Lemon Grass Cymbopogon Citratus L.

Influence of Two Cutting Dates and Foliar Spray of Tryptophan on Some Physiological Traits and Active Substance of Lemon Grass Cymbopogon Citratus L.

Influence of Different Planting Dates on Growth, Yield and Quality of Menthol Mint (Mentha arvensis L.) Cultivars during Kharif Season

Yield of Roselle (<i>Hibiscus sabdariffa</i> L.) as Influenced by Manure and Nitrogen Fertilizer Application

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Effect of Sowing Date and Planting Distance on Growth and Yield of Two Cultivars of Roselle (Hibiscus sabdariffa var. sabdariffa)

Cited by 9 publications

References 1 publication

Influence of Two Cutting Dates and Foliar Spray of Tryptophan on Some Physiological Traits and Active Substance of Lemon Grass Cymbopogon Citratus L.

Influence of Two Cutting Dates and Foliar Spray of Tryptophan on Some Physiological Traits and Active Substance of Lemon Grass Cymbopogon Citratus L.

Influence of Different Planting Dates on Growth, Yield and Quality of Menthol Mint (Mentha arvensis L.) Cultivars during Kharif Season

Yield of Roselle (&lt;i&gt;Hibiscus sabdariffa&lt;/i&gt; L.) as Influenced by Manure and Nitrogen Fertilizer Application

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Product

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Yield of Roselle (<i>Hibiscus sabdariffa</i> L.) as Influenced by Manure and Nitrogen Fertilizer Application