Response of Three Wheat Varieties to Nitrogen Levels, Seeding Rates and Their Combination: 1. Growth Analysis
El-Sayed Mohamed Gheith,
Sayed Ahmad Safina,
Musa Ali Adam Saboon,
Ola Zakarya El-Badry
Issue:
Volume 10, Issue 4, December 2022
Pages:
61-66
Received:
16 May 2022
Accepted:
2 June 2022
Published:
10 January 2023
Abstract: Two field experiments were conducted to evaluate the effect of three nitrogen fertilizer levels, i.e. 60, 80 and 100 kg N/fed One feddan = 4200m2 = 2.4h, three seeding rates, i.e. 40, 60 and kg grains/fed on growth analysis of three wheat varieties (Giza-171, Gemmiza-12 and Shandawil-1) where randomly kept in main plots, sub plots and sub-subplots, respectively at Agricultural and Experiments Research Station, Giza, Faculty of Agriculture, Cairo University, Egypt during 2018/2019 and 219/2020 seasons. The estimated studied growth characters were: Leaf area (LA) at 40, 60 and 80 days after sowing (DAS), leaf area index (LAI) at 40, 60 and 80 DAS, crop grow rate (CGR), Relative growth rate (RGR) and nit assimilation rate (NAR) at two periods (40-60 and 60-8 DAS) and flag leaf area (FLA) at 80 DAS. Results indicated that nitrogen fertilizer levels had significant effect on all studied characters in both season, except LA at 40 DAS, CGR at both periods in the first season and LA at 40 and 60 DAS, NAR at both periods in the second season. Application of either 100 or 80 kg N/fed recorded the highest values of the most of studied characters in first and second season, respectively. Seeding rates significantly affected all studied traits in both season, except LAI at 80 DAS, RGA at 60 DAS, NAR at the first period and FLA in the first season and LA at all dates, RGR at second period and NAR at both periods in the second season. The highest of the most studied traits wee obtained with planting wheat with either 60 or 80 kg grains/fed. Among verities, Giza-171 followed by Gemmiza-12 recorded the highest significant values from all studied characters in both seasons. Concerning the interaction between all studied factors, significant effect on LAI at 40 and 80 DAS, CGR at both periods, RGR at second period and FLA in the first season was found. On the other hand, this interaction significantly affected the most of studied characters in first season. It could be conclude that planting Giza-171 with 80 kg grains/fed and application of 100 kg N/fed could produced the highest values of the most of studied growth characters under the experimental site and the similar conditions.
Abstract: Two field experiments were conducted to evaluate the effect of three nitrogen fertilizer levels, i.e. 60, 80 and 100 kg N/fed One feddan = 4200m2 = 2.4h, three seeding rates, i.e. 40, 60 and kg grains/fed on growth analysis of three wheat varieties (Giza-171, Gemmiza-12 and Shandawil-1) where randomly kept in main plots, sub plots and sub-subplots,...
Show More
Status and Constraints Evaluation of Artificial Insemination in Bishoftu and Its Environs
Koku Abeb,
Tesfaye Belachew
Issue:
Volume 10, Issue 4, December 2022
Pages:
67-74
Received:
24 October 2022
Accepted:
15 November 2022
Published:
31 January 2023
Abstract: Efficiency of artificial insemination service might be lower due to various challenges including poor estrus detection, inefficiency of artificial insemination techniques, and distance from AI station, poor management system, inadequate nutrition and poor quality of semen. Failure of estrus detection and improper timing of insemination has been the most known problems of in diary animals. The intention of this study was to appraise the status, challenges and the outcome. AI service beneficiaries in and around bishoftu town. In this study, a total of 287 respondents (smallholder farmers, dairy farm, Animals health professionals and Artificial Insemination Techniques) were included through structured questionnaires survey and interviewed. In to this, Retrospective data study was included in the study to evaluate the status of AI service in the study site. As the result revealed that from 269 total farmer respondents 49.1% (132/269) had got AI service on time without any interruption while 50.9% (137/269) AI users couldn’t got service on time due to lack of input, unavailability of AITs and discontinuation of service on weekends and holidays with statistically significant among kebeles (p<0.05). Bellowing, clear mucous discharge from vagina, mounting, decrease production and feed intake, restlessness and nervousness, were found to be the most common estrus manifestation observed by diary owners as holidays, lack of appropriate collaboration and communication among stake holders, and repeat breeding. In case of repeat breeding, he maximum and minimum impression of AI users toward using AI repeatedly were 43.8% (Danbi) and 33.0% (Kality) respectively with statistically insignificant among respondents (p>0.05). Generally the questionnaire survey indicated that the application of assisted reproductive biotechnologies in the study area was at infant stage surrounded with challenge full so it requires urgent involvement of stakeholders before it aggravates.
Abstract: Efficiency of artificial insemination service might be lower due to various challenges including poor estrus detection, inefficiency of artificial insemination techniques, and distance from AI station, poor management system, inadequate nutrition and poor quality of semen. Failure of estrus detection and improper timing of insemination has been the...
Show More
