-
Research Article
Comparative Effects of Amino and Agriful on Growth and Yield Parameters of Rice
Issue:
Volume 14, Issue 2, April 2026
Pages:
68-78
Received:
6 January 2026
Accepted:
16 January 2026
Published:
14 March 2026
Abstract: The purpose of this study was to assess how two bio-stimulants, Amino and Agriful, affect the growth and yield of rice (Oryza sativa L.). Bio-stimulants are increasingly recognized for their ability to boost plant performance in a sustainable way, and this study set out to examine their specific contributions under controlled conditions. To achieve this, pot experiments were used to clearly isolate and measure their effects. Two rice varieties, LEGON-1 and CRI-AMANKWATIA, were selected for the trials. The experiment involved applying Amino and Agriful at different concentrations, along with a control treatment that received no bio-stimulant. Key growth indicators such as plant height, leaf area, and biomass accumulation were monitored at different stages of development. Results showed that Amino significantly enhanced vegetative growth. Plants treated with Amino exhibited greater height and larger leaf area, which supported better photosynthetic activity and higher biomass production. In contrast, Agriful had a stronger influence on yield-related traits, promoting longer panicles, heavier grains, and higher overall grain yield. Soil tests conducted before and after the experiment indicated that both bio-stimulants improved soil conditions, particularly by increasing nutrient availability and stimulating microbial activity. Overall, the study demonstrates that incorporating bio-stimulants like Amino and Agriful into rice production can enhance growth and yield in a sustainable manner. Although both products were beneficial, their differing strengths, Amino favoring vegetative growth and Agriful enhancing yield components—underline the need to match bio-stimulant choice with specific agronomic objectives.
Abstract: The purpose of this study was to assess how two bio-stimulants, Amino and Agriful, affect the growth and yield of rice (Oryza sativa L.). Bio-stimulants are increasingly recognized for their ability to boost plant performance in a sustainable way, and this study set out to examine their specific contributions under controlled conditions. To achieve...
Show More
-
Research Article
Implications of Invasive Species Removal, Soil Properties and Plant Functional Traits on Survival and Co-occurrence of Above-ground Vegetation with Soil Seed Bank
Issue:
Volume 14, Issue 2, April 2026
Pages:
79-92
Received:
5 February 2026
Accepted:
27 February 2026
Published:
26 March 2026
Abstract: Ecological restoration partially relies on plant regeneration from the above-ground vegetation (AGV) and soil seed banks (SSB); however, the co-occurrence of species in these sources vary across ecosystems. In this study, we measured soil properties and surveyed SSB and AGV, monitored regenerants for two years to estimate survival rates. We assessed the variation of species abundance in AGV, SSB and natural regenerants using a log-linear model and tested for correlation between soil properties using Pearson’s correlation coefficient and the association between the importance value index and survival rate of regenerants using generalised linear models. We found within-community dissimilarity between AGV and SSB, and the co-occurrence of species was predicted by periods of invasive species removal. There were five (4.46%) common species and five (4.46%), 34 (30.36%) and 42 (37.5%) exclusive species in natural regenerants, SSB and AGV, respectively. The common species among all periods of invasive species removal were 12.5%, 20%, and 41.7% in AGV, natural regenerants, and SSB, respectively. The diversity of SSB was positively associated with the survival rate of regenerants, but not AGV diversity. Survival rates of regenerants were associated with seed mass but not plant height, while plant functional traits were not associated with importance value indices of AGV. These findings show that native plant recovery can be accelerated by removal of invasive species; however, diversity differences exist between AGV and SSB, which were not necessarily modulated by plant functional traits and soil characteristics.
Abstract: Ecological restoration partially relies on plant regeneration from the above-ground vegetation (AGV) and soil seed banks (SSB); however, the co-occurrence of species in these sources vary across ecosystems. In this study, we measured soil properties and surveyed SSB and AGV, monitored regenerants for two years to estimate survival rates. We assesse...
Show More
-
Research Article
Seed-borne Fungi Associated with Sesame Seeds Cultivated in Chad Republic
Issue:
Volume 14, Issue 2, April 2026
Pages:
93-103
Received:
4 March 2026
Accepted:
18 March 2026
Published:
16 April 2026
DOI:
10.11648/j.jps.20261402.13
Downloads:
Views:
Abstract: Sesame (Sesamum indicum L.) is an important oil seed crop in Chad, but its productivity is constrained by seed-borne fungal pathogens affecting seed quality, germination, and seedling establishment. This study examined the different seed-borne fungi associated with sesame varieties using two International Seed Testing Association (ISTA)-recommended methods: the blotter paper method and agar plate method. The results show that 22 fungal species were identified, with notable differences between the two methods. The blotter paper method detected 13 species, while the agar plate method revealed 22 species, with 3 375 isolates detected using the agar plate method compared to 1 070 isolates on blotter paper method. Using the blotter paper method, Alternaria sesami (13.28%), A. brassicicola (12.51%) and Macrophomina phaseolina (10.69%) were the most frequent species and Bipolaris spicifera (3.86%) and Nigrospora sphaerica (4.02%) were the least frequent. With the agar plate method, the most frequent species were A. sesami (16.92%), Aspergillus niger (12.57%) and Cercospora sesami (12.5%). Pestalotia guepini and Verticillium dahliae were the least frequent species, with respective frequencies of 0.41 and 0.61%. These results revealed a wide diversity of seed-borne fungi of sesame, highlighting the need to develop effective strategies to control these seed-borne fungi.
Abstract: Sesame (Sesamum indicum L.) is an important oil seed crop in Chad, but its productivity is constrained by seed-borne fungal pathogens affecting seed quality, germination, and seedling establishment. This study examined the different seed-borne fungi associated with sesame varieties using two International Seed Testing Association (ISTA)-recommended...
Show More
,
Kirpal Agyemang Ofosu
