Growth response of fluted pumpkin (Telfairia occidentalis Hook. F) to combinations of irrigation intervals and spent mushroom substrate in the Niger Delta region of Nigeria

Fubara-Manuel,

doi:10.5897/ajb11.1576

Cited by 8 publications

(2 citation statements)

References 3 publications

(4 reference statements)

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“…Leaf size was estimated using leaflets in a leaf (Nt) combined with the length (Lc) and maximum width (Wc) of the central leaflet (Akoroda, 1993). Leaf Area = 0.9467 + 0.2475LcWc + 0.9724LcWcNt (r 2 = 0.92), where: Lc = length of central leaflet; Wc = maximum width of central leaflet; Nt = number of leaflets in a leaf; and r 2 = coefficient of determination (Fubara-Manuel et al, 2012). The fruits were counted, weighed and averaged.…”

Section: Character Evaluationmentioning

confidence: 99%

Multivariate analysis techniques reveal significant morphogenetic variability in pumpkin landraces in Kenya

2018

Int. J. Biosci.

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Documented information on naturalized pumpkin landraces in Kenya to identify useful variability is insufficient.The present study assessed variability using quantitative characters of 155 accessions, with 70 and 85 from Kakamega and Nyeri regions, respectively. The accessions were grown in one farm in a completely randomized design with three replications. Analysis of variance showed significant (P<0.05) variation in all characters.Lowest and highest variables in mean and range were leaf length/width ratio and seed number that were 0.8 and 0.4, and 837 and 4,111, respectively. Eight factors accounted for 79.4% of total variation. The highly variable factors were fruit flesh thickness, length, width and length/width ratio, size, total weight, average weight and number, as well as seed number, 100-seeds weight, length, width, and thickness. Phenotypic coefficients of variation (PCV) were slightly higher or equal to genotypic ones (GCV). High GCV and PCV, heritability and genetic gain resulted for fruit size, total fruit weight, fruits and seeds. Over 70 positive correlations in fruit size, number and seeds with total fruit weight were observed in genotypic and phenotypic variabilities. Maximum positive direct effects on total fruit weight were observed in seeds, fruit average weight, length, and size, while indirect effects were observed in fruit number, flesh thickness, length, peduncle length and days to first flower.Multivariate analysis revealed fruit size, number, total weight, and seeds were characters of great genetic variability, which should be considered as primary components for achieving high yields in pumpkins when screening accessions for selection and improvement.

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Section: Character Evaluationmentioning

confidence: 99%

Multivariate analysis techniques reveal significant morphogenetic variability in pumpkin landraces in Kenya

2018

Int. J. Biosci.

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“…It contains living organisms capable of improving plant growth [14] [15]. Its cost of production is low and it causes no harm to the environment (air, soil and even ground water).…”

Section: Introductionmentioning

confidence: 99%

Growth Promotion of <i>Telfairia occidentalis</i> by Application of <i>Chlorella vulgaris</i> (Bioinoculant) Colonized Seeds and Soil under Tropical Field Conditions

Agwa¹,

Ogugbue²,

Williams³

2018

AJPS

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The application of fertilizer is an essential factor for improving plant growth.This study was carried out to investigate the effect of Chlorella vulgaris (bio-fertilizer), NPK and poultry manure on the microbiological, biometric and biochemical properties of Telfairia occidentalis and its rhizosphere soil after forty days of planting. There were significant changes in the microbiological and physicochemical characteristics of soil in the various treatments administered. Maximum bacterial and fungal counts of 2.6 × 10 10 and 3.8 × 10 5 cfu/g were obtained in soil treated with poultry manure and Chlorella vulgaris respectively whereas; maximum nitrogen (0.85%) and potassium (13.6 mg/ml) contents were obtained in NPK treated soil. Soil amended with Chlorella vulgaris showed maximum organic matter (9.48%) and phosphorus (8.55 mg/ml) concentrations. The amendment of soil with Chlorella vulgaris also speeded up germination of the Telfairia occidentalis to 5 days while, maximum plant length, number of leaves and fresh weight of the fluted pumpkin were obtained in Chlorella vulgaris amended soil and seed treatment pot. Total chlorophyll, carbohydrates, proteins and lipids were also increased on application of Chlorella vulgaris to soil or seed. Generally, application of Chlorella vulgaris to either seed or soil before planting resulted in increase in plant growth characteristics. Results of this study thus suggest that Chlorella vulgaris (bio-fertilizer) is a veritable biotechnological agent for improved cultivation of Telfairia occidentalis.

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Response Surface Methodology for Optimizing Water and Fertilizer Requirements for Maize (Zea mays L.) Growth in Sandy Soil

Emran,

El-Gamal,

Haddad

et al. 2024

J Soil Sci Plant Nutr

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To foster sustainable agricultural practices, the utilization of irrigation, fertilizers, and recycled soil enhancements is essential, particularly in regions with limited resources. This investigation sought to ascertain the optimal water and fertilizer prerequisites for the cultivation of maize by employing Response Surface Methodology (RSM) in arenosol enriched with spent mushroom substrate (SMS) in a controlled pot experiment. The experimental treatments were determined using the Central Composite Design based on varying levels of irrigation (50%, 75%, and 100% of soil field capacity), nitrogen (0, 1, and 2 g pot−1), and SMS (0, 5, and 10%, v/v). The investigation's findings demonstrated that augmented irrigation and nitrogen fertilization positively influenced all agronomic traits, as well as nitrogen concentrations in the roots, shoots, and soil. SMS increased shoot fresh weight, shoot dry weight, leaf area per plant, and dissolved and total soil organic carbon. The optimal levels of irrigation, nitrogen fertilizer, and SMS to improve agronomic attributes were determined to be 81.43–97.80%, 1.38–1.69 g pot−1, and 5.77–8.48%, respectively. The optimal amounts for NPK retention in soil and plant uptake were 69.50–98.00%, 1.20–1.98 g pot−1, and 4.72–9.74%, respectively. The study concluded that irrigation and nitrogen levels had a greater impact on optimizing maize growth response than SMS. However, SMS was found to be more effective in increasing plant biomass due to its enhancement of both dissolved and total soil organic carbon. Furthermore, the interaction of irrigation and mineral nitrogen with SMS improved soil nutrient retention, plant uptake, and plant biomass productivity.

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Growth response of fluted pumpkin (Telfairia occidentalis Hook. F) to combinations of irrigation intervals and spent mushroom substrate in the Niger Delta region of Nigeria

Cited by 8 publications

References 3 publications

Multivariate analysis techniques reveal significant morphogenetic variability in pumpkin landraces in Kenya

Multivariate analysis techniques reveal significant morphogenetic variability in pumpkin landraces in Kenya

Growth Promotion of <i>Telfairia occidentalis</i> by Application of <i>Chlorella vulgaris</i> (Bioinoculant) Colonized Seeds and Soil under Tropical Field Conditions

Response Surface Methodology for Optimizing Water and Fertilizer Requirements for Maize (Zea mays L.) Growth in Sandy Soil

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Growth response of fluted pumpkin (Telfairia occidentalis Hook. F) to combinations of irrigation intervals and spent mushroom substrate in the Niger Delta region of Nigeria

Cited by 8 publications

References 3 publications

Multivariate analysis techniques reveal significant morphogenetic variability in pumpkin landraces in Kenya

Multivariate analysis techniques reveal significant morphogenetic variability in pumpkin landraces in Kenya

Growth Promotion of &lt;i&gt;Telfairia occidentalis&lt;/i&gt; by Application of &lt;i&gt;Chlorella vulgaris&lt;/i&gt; (Bioinoculant) Colonized Seeds and Soil under Tropical Field Conditions

Response Surface Methodology for Optimizing Water and Fertilizer Requirements for Maize (Zea mays L.) Growth in Sandy Soil

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Growth Promotion of <i>Telfairia occidentalis</i> by Application of <i>Chlorella vulgaris</i> (Bioinoculant) Colonized Seeds and Soil under Tropical Field Conditions