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Effects of Vertical Number and Topping Practice on Growth and Yields of Stumped Coffee (Coffea arabica L.) at Awada South Ethiopia
Issue:
Volume 8, Issue 1, March 2023
Pages:
1-5
Received:
4 June 2022
Accepted:
4 July 2022
Published:
21 February 2023
Abstract: Coffee (Coffea arabica L.) is known to be one of the most important beverages in the world and is a very important source of foreign exchange for many countries. Old coffee rejuvenation or stumping is one of the most and commonly used by coffee producing countries for productivity enhancements methods especially for those poor productive due to old age and as well as genetic conservation practice. The most and large coverage of old coffee plantation is the most production constraints in almost all coffee growing areas of Ethiopia. A field experiment was conducted at Awada Agriculture Research Sub-center experimental site between 2013 and 2020 with improved south Ethiopian coffee selections to determine appropriate Vertical number and topping practices for enhanced yield and yield component. Four vertical or bearing head number and topping practices (Topped single stem, Topped multiple stems, Untopped multiple stems, and Free Growth) were used as treatments and laid out in a randomized complete block design (RCBD) with three replications, to identify the effects of old coffee tree stumping and number of verticals with topping practice. Analysis of variance revealed that; clean coffee yields and growth parameters were significantly influenced by the different numbers of verticals and also topping practice. The analysis of variance also revealed highly significant yield variations among topping practice and the number of verticals. Free growth and topped multiple stems revealed the highest and statically similar yield performance throughout the cropping season as compared to the other treatments. Therefore, these finding indicates that topping practice and the number of verticals significantly promoted the yield responses of Arabica coffee cultivars under field condition. Therefore, topping multiple stems and free growth were selected as a promising practice to enhance coffee yield and yield components.
Abstract: Coffee (Coffea arabica L.) is known to be one of the most important beverages in the world and is a very important source of foreign exchange for many countries. Old coffee rejuvenation or stumping is one of the most and commonly used by coffee producing countries for productivity enhancements methods especially for those poor productive due to old...
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Adaptation and Growth Performance of Lowland Bamboo Species at Fedis District East Hararghe Zone, Oromia, Ethiopia
Musa Abdella,
Bira Cheneke
Issue:
Volume 8, Issue 1, March 2023
Pages:
6-11
Received:
9 November 2022
Accepted:
13 December 2022
Published:
28 February 2023
Abstract: A study was conducted to evaluate adaptation and growth performance of four lowland bamboo species at Fedis district, East Haraghe Zone, oromia, Ethiopia for four years (June 2019 - June 2022). Four lowland bamboo species were tested in randomized complete block design with three replications. Data on growth parameters: survival rate, new emerging shoot, internodes length, number of nodes, culm height, culm diameter and its root culm diameter were measured and recorded at interval of three months during data collected. Results revealed that there were highly significant (p<0.05) variations among lowland bamboo species at the study area. Among the species tasted, Dendrocalamus hamlitonii and Dendrocalamus memebranceous, were showed the highest performance and have better survival percentage than Oxythenantera abyssinica. Dendrocalamus hamlitonii, and Dendrocalamus memebranceous are the fastest growing species of bamboo and have better survival percentage. However, Oxythenantera abyssinica have medium survival percentage than Dendrocalamus asper which have lower survival. Generally, among the species tested Dendrocalamus hamlitonii, Dendrocalamus memebranceous showed faster growth performance and Oxythenantera abyssinica was showed better performance at Fedis condition, but Dendrocalamus asper showed lower performance. With respect to new emerging shoot, internodes length, number of nodes, culm height, and culm diameter at breast height and its root culm diameter, Dendrocalamus hamlitonii, Dendrocalamus memebranceous and Oxythenantera abyssinica were significantly higher than Denderocalamus asper. Based on this, three bamboo species Dendrocalamus hamlitonii, Dendrocalamus memebranceous and Oxythenantera abyssinica are best performed introduced bamboo species for promotion in the study area. Therefore, the best performed species should be demonstrated and popularized around Fedis and in areas that have similar soil and climatic conditions. So, based on these results we recommended Dendrocalamus hamlitonii, Dendrocalamus memebranceous and Oxythenantera abyssinica for different production and constriction since they have a good quality of internodes length, ability to emerge new shoots, culm height and diameter. It is better to use for soil and water conservation purpose on degraded area rehabilitation. Since bamboo gives seed once in 40 years which is a big challenge in expansion of the resource, he need further study on bamboo propagation method. These species could be promote for various end uses like human food (D. hamiltonii edible shoot) and animals feed, for industrial purposes, and for carbon sequestration (because of their high biomass).
Abstract: A study was conducted to evaluate adaptation and growth performance of four lowland bamboo species at Fedis district, East Haraghe Zone, oromia, Ethiopia for four years (June 2019 - June 2022). Four lowland bamboo species were tested in randomized complete block design with three replications. Data on growth parameters: survival rate, new emerging ...
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Effects of Plant Spacing and Indole-3-Acetic Acid on Vegetative Growth, Flowering and Yield Features of Gladiolus (Gladiolus palustris)
Md. Imran Hossain,
Md. Rezaul Karim,
Md. Alamin,
Md. Rashed Sarker,
Fakhar Uddin Talukder
Issue:
Volume 8, Issue 1, March 2023
Pages:
12-19
Received:
21 November 2022
Accepted:
1 February 2023
Published:
3 March 2023
Abstract: The experiment was carried out at the Horticulture Farm of Bangladesh Agricultural University (BAU), Mymensingh during the epoch from November, 2020 to April, 2021 with the aim to observe the outcomes of plant spacing and indole-3 acetic acid (IAA) concentrations on the vegetative growth, flowering and yield features of gladiolus. The research was two factors, Factor A: three plant spacing viz. S1 = 15 cm x 25 cm, S2 = 20 cm x 25 cm, S3 = 25 cm x 25 cm and Factor B: different concentrations of indole-3-acetic acid (IAA) viz. I1= IAA 0 ppm, I2=100 ppm and I3=150 ppm. It was Randomized Complete Block Design with three replications. The 25 cm × 25 cm spacing showed best performance in respect to plant height (69.88 cm), yield of flower (162.22 t ha-1), yield of corm (15.65 t ha-1), and yield of cormel (14.32 t ha-1) than the other spacing. Application of IAA at a rate of 150 ppm was initiated to be excellent for plant height (68.51 cm), yield of flower (162.67 t ha-1), yield of corm (15.57 t ha-1) and yield of cormel (13.93 t ha-1). Regarding the combined effect of treatments, 150 ppm IAA with wider plant spacing was found to be best for plant height (70.73cm), yield of flower (166.67 t ha-1), diameter of corm (7 cm) and weight of cormel per plant (81.87gm). Considering the above findings, it was apparent that the combination of 25 cm × 25 cm spacing with 150 ppm IAA application was suitable for better growth, flowering and yield/production of gladiolus.
Abstract: The experiment was carried out at the Horticulture Farm of Bangladesh Agricultural University (BAU), Mymensingh during the epoch from November, 2020 to April, 2021 with the aim to observe the outcomes of plant spacing and indole-3 acetic acid (IAA) concentrations on the vegetative growth, flowering and yield features of gladiolus. The research was ...
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Effect of Inter and Intra Row Spacing on Growth, Yield and Yield Components of Sorghum (Sorghum bicolor (L.) Moench) at Assosa District, Western Ethiopia
Adisie Dinberu,
Megersa Mengasha
Issue:
Volume 8, Issue 1, March 2023
Pages:
20-24
Received:
22 November 2022
Accepted:
20 February 2023
Published:
3 March 2023
Abstract: Studies on plant populations are scarce and poorly recorded in western Ethiopia, which is a necessary condition for successfully cultivating the sorghum crop. To identify the ideal planting spacing for sorghum productivity in the main cropping season, this experiment was carried out at the Assosa Agricultural Research Center, Benishangul-Gumuz Region, in the 2020 and 2021 cropping seasons. The experiment was set up in a randomized complete block design (RCBD) with three replications. It had a factorial configuration with three levels of inter-row spacing (70 cm, 75 cm, and 80 cm) and four levels of intra-row spacing (15 cm, 20 cm, 25 cm, and 30 cm). The current finding indicates that plant height decreased as intra-row space increased. Inter n and intra-row spacing had a substantial interaction effect on grain yield (P<0.01) As a consequence, a planting spacing of 75 cm by 20 cm produced the highest grain production (4784.6 kg ha-1). Similar to this, the main effect of 20 cm intra-row spacing produced a significant maximum head weight (12.7 kg/plot). At low population levels, yield reductions were observed (75 cm inter and 30cm intra row). The findings indicate that the decrease in final grain output was a result of an increase in intra-plant separation from 20 cm to 30 cm between plants. In general, plants placed properly provided a great output, whereas plants spaced widely produced a poor yield. Therefore, to maintain sorghum productivity with the necessary spacing, improved sorghum varieties in Assosa and other regions with comparable agro-ecologies can be encouraged to use 75 cm inter-row spacing and 20 cm intra-row spacing.
Abstract: Studies on plant populations are scarce and poorly recorded in western Ethiopia, which is a necessary condition for successfully cultivating the sorghum crop. To identify the ideal planting spacing for sorghum productivity in the main cropping season, this experiment was carried out at the Assosa Agricultural Research Center, Benishangul-Gumuz Regi...
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