Pub Date : 2022-09-01DOI: 10.21608/mjard.2022.257021
The effect of organic selenium (OR-Se) based on Selenomethionine produced by Saccharomyces cerevisiae (Alkosel® NCYC R397) on the growth performance, carcass traits, blood hematological and biochemical indices and antioxidant status of growing rabbits under high ambient temperature. In an 8-week experimental period, a total of 48 New Zealand White rabbits were randomly distributed into 4 groups. Animals were allotted into 4 groups: control (basal diet) and T1, T2, T3 that were fed the basal diet supplemented with 0.4, 0.8 and 1.2 mg OR-Se/kg diet, respectively. Results showed that stressed rabbits in OR-Se-supplemented groups had a significant improvement (p<0.01) in growth parameters (except feed intake), dressing percentage and abdominal fat. In addition that, the supplemented groups (T2, T3) recorded higher levels (p<0.05) in red blood cells, hemoglobin, and packed cell volume. And these groups had a notable increase (p<0.05) in serum total protein and globulin and a decline in total cholesterol and triglycerides. In connection supplemented OR-Se statistically (p<0.01) increased serum total antioxidant capacity and declined Malondialdehyde compared with the control. Our findings of this study concluded that the supplementation of growing rabbit diets with OR-Se under hot times can alleviate the adverse effects of heat stress by improvement of the antioxidant status that reflected on growth performance, carcass characteristics and blood parameters.
{"title":"EVALUATION OF ORGANIC SELENIUM ON PRODUCTIVE PERFORMANCE, BLOOD BIOCHEMICAL PROPERTIES AND ANTIOXIDANT STATUS OF GROWING RABBITS UNDER HOT CLIMATE","authors":"","doi":"10.21608/mjard.2022.257021","DOIUrl":"https://doi.org/10.21608/mjard.2022.257021","url":null,"abstract":"The effect of organic selenium (OR-Se) based on Selenomethionine produced by Saccharomyces cerevisiae (Alkosel® NCYC R397) on the growth performance, carcass traits, blood hematological and biochemical indices and antioxidant status of growing rabbits under high ambient temperature. In an 8-week experimental period, a total of 48 New Zealand White rabbits were randomly distributed into 4 groups. Animals were allotted into 4 groups: control (basal diet) and T1, T2, T3 that were fed the basal diet supplemented with 0.4, 0.8 and 1.2 mg OR-Se/kg diet, respectively. Results showed that stressed rabbits in OR-Se-supplemented groups had a significant improvement (p<0.01) in growth parameters (except feed intake), dressing percentage and abdominal fat. In addition that, the supplemented groups (T2, T3) recorded higher levels (p<0.05) in red blood cells, hemoglobin, and packed cell volume. And these groups had a notable increase (p<0.05) in serum total protein and globulin and a decline in total cholesterol and triglycerides. In connection supplemented OR-Se statistically (p<0.01) increased serum total antioxidant capacity and declined Malondialdehyde compared with the control. Our findings of this study concluded that the supplementation of growing rabbit diets with OR-Se under hot times can alleviate the adverse effects of heat stress by improvement of the antioxidant status that reflected on growth performance, carcass characteristics and blood parameters.","PeriodicalId":18575,"journal":{"name":"Minia Journal of Agricultural Research and Development","volume":"182 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72654241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-09-01DOI: 10.21608/mjard.2022.260449
Climate changes especially temperature played a big role in the survival of honeybee. The present study evaluated the effect of chilled brood disease from three axes: relationship with temperature, brood area and foraging activity during the two successive winter seasons of 2019/2020 and 2020/2021. Results recorded negative relation between chilled larvae and inter/outer temperature: -0.8707 and -3.6313 for inter temperature, -0.3462 and 0.6065 for outer temperature in 2019/2020 and 2020/2021, respectively. On the other hand data showed significant decrease in mean area of larvae reared chilled brood diseases in bad wintering which showed 26.50 inch 2 comparing with 36.46 inch 2 in reared in perfect wintering (control) and brood area which reduced from 36.46 to 26.50 inch sq. and from 40.59 to 28.88 inch sq. in winter 2019/2020 and 2020/2021, respectively. Finally, foraging bee activity of bees in the obtained results showed high effect between chilled brood symptoms and foraging rate, which decrease the number of returned workers from10.71 to 6.88 bee/min. and from 13.00 to 8.21 bee/min. in seasons 2019/2020 and 2020/2021, respectively.
{"title":"TIME APPEARANCE OF NON - INFECTIOUS CHILLED BROOD DISEASE AND ITS EFFECT ON HONEYBEE BROOD AND BEE FORAGING ACTIVITY","authors":"","doi":"10.21608/mjard.2022.260449","DOIUrl":"https://doi.org/10.21608/mjard.2022.260449","url":null,"abstract":"Climate changes especially temperature played a big role in the survival of honeybee. The present study evaluated the effect of chilled brood disease from three axes: relationship with temperature, brood area and foraging activity during the two successive winter seasons of 2019/2020 and 2020/2021. Results recorded negative relation between chilled larvae and inter/outer temperature: -0.8707 and -3.6313 for inter temperature, -0.3462 and 0.6065 for outer temperature in 2019/2020 and 2020/2021, respectively. On the other hand data showed significant decrease in mean area of larvae reared chilled brood diseases in bad wintering which showed 26.50 inch 2 comparing with 36.46 inch 2 in reared in perfect wintering (control) and brood area which reduced from 36.46 to 26.50 inch sq. and from 40.59 to 28.88 inch sq. in winter 2019/2020 and 2020/2021, respectively. Finally, foraging bee activity of bees in the obtained results showed high effect between chilled brood symptoms and foraging rate, which decrease the number of returned workers from10.71 to 6.88 bee/min. and from 13.00 to 8.21 bee/min. in seasons 2019/2020 and 2020/2021, respectively.","PeriodicalId":18575,"journal":{"name":"Minia Journal of Agricultural Research and Development","volume":"109 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81214810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-28DOI: 10.21608/mjard.2022.124410.1005
S. Abdelrahman, A. H. Wassel, F. Abdelaziz
This experiment was carried out during 2018/2019 and 2019/2020 seasons on Valencia orange trees cultivated on clay soil located at Mallawy district to investigate the effect of different nitrogen doses on the yield and its fruits quality. Different Nitrogen applications at 600, 900 and 1200 g N/ tree in the form of ammonium nitrate (33.5%) were added annually per tree in two or three equal batches at Mid- November and first week of December and Mid- November, first week of December and Last week of December. In addition to the control 1000 g N / tree at three equal batches, at the start of spring growth cycle, just after fruit setting and at two months later. Increasing the nitrogen doses was very effective in increasing fruit set, the yield per tree and fruit quality. The best results concerning yield and fruit quality were presented by adding 1200 g N /tree annually at three equal batches.
本试验于2018/2019和2019/2020两季在马拉维县粘土土壤上种植瓦伦西亚橙树，研究不同施氮量对产量和果实品质的影响。分别在11月中旬和12月第一周、12月第一周和12月最后一周，按每年600、900和1200 g N/树的氮肥(33.5%)分两批或三批等量施氮。除对照1000g N /树外，在春季生长周期开始时、坐果后和两个月后分三次等量施用。增加施氮量对提高坐果量、单株产量和果实品质均有显著效果。在产量和果实品质方面，以每棵树每年等量添加1200g氮为最佳。
{"title":"effect of soil nitrogen fertilizer on fruit set, the yield and fruit quality of Valencia orang trees.","authors":"S. Abdelrahman, A. H. Wassel, F. Abdelaziz","doi":"10.21608/mjard.2022.124410.1005","DOIUrl":"https://doi.org/10.21608/mjard.2022.124410.1005","url":null,"abstract":"This experiment was carried out during 2018/2019 and 2019/2020 seasons on Valencia orange trees cultivated on clay soil located at Mallawy district to investigate the effect of different nitrogen doses on the yield and its fruits quality. Different Nitrogen applications at 600, 900 and 1200 g N/ tree in the form of ammonium nitrate (33.5%) were added annually per tree in two or three equal batches at Mid- November and first week of December and Mid- November, first week of December and Last week of December. In addition to the control 1000 g N / tree at three equal batches, at the start of spring growth cycle, just after fruit setting and at two months later. Increasing the nitrogen doses was very effective in increasing fruit set, the yield per tree and fruit quality. The best results concerning yield and fruit quality were presented by adding 1200 g N /tree annually at three equal batches.","PeriodicalId":18575,"journal":{"name":"Minia Journal of Agricultural Research and Development","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80034353","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-16DOI: 10.21608/mjard.2022.124390.1004
Fatma Abdelhameed Mohamed, A. H. Wassel, F. Abdelaziz
This study was carried out during 2018/2019 and 2019/ 2020 seasons to examine the effect of urea winter spraying at 2.0% and 3.0% on initial fruit setting, yield and fruit quality of Valencia orange trees grown under Minia climatic conditions. Spraying was carried out once at first of November, twice at first and mid of November or thrice at first, mid and last of November. Increasing in urea concentrations and frequencies were of promotion effect on fruit set and the yield as well as the physical and chemical properties of the fruits. Spraying urea at 3.0% was more effective than spraying it at 2.0% on the yield and the quality of valencia orange fruits. The difference between spraying it at 2.0% and 3.0% was statistically of significant difference on all of the properties of valencia orange fruits. The best results were obtained by spraying valencia orange trees with urea at 3.0% thrice annually at first, mid and last of November.
{"title":"Effect Of Winter Spraying Of Urea On Valencia Orange Treesscript title already exists","authors":"Fatma Abdelhameed Mohamed, A. H. Wassel, F. Abdelaziz","doi":"10.21608/mjard.2022.124390.1004","DOIUrl":"https://doi.org/10.21608/mjard.2022.124390.1004","url":null,"abstract":"This study was carried out during 2018/2019 and 2019/ 2020 seasons to examine the effect of urea winter spraying at 2.0% and 3.0% on initial fruit setting, yield and fruit quality of Valencia orange trees grown under Minia climatic conditions. Spraying was carried out once at first of November, twice at first and mid of November or thrice at first, mid and last of November. Increasing in urea concentrations and frequencies were of promotion effect on fruit set and the yield as well as the physical and chemical properties of the fruits. Spraying urea at 3.0% was more effective than spraying it at 2.0% on the yield and the quality of valencia orange fruits. The difference between spraying it at 2.0% and 3.0% was statistically of significant difference on all of the properties of valencia orange fruits. The best results were obtained by spraying valencia orange trees with urea at 3.0% thrice annually at first, mid and last of November.","PeriodicalId":18575,"journal":{"name":"Minia Journal of Agricultural Research and Development","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75146735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-16DOI: 10.21608/mjard.2022.123189.1003
samah abo elliel, E. Zidan, H. Eshbah
{"title":"Influence of sugary feeding with some vitamins on phenoloxidase and antioxidant activity in honeybee workers, Apis mellifera L.","authors":"samah abo elliel, E. Zidan, H. Eshbah","doi":"10.21608/mjard.2022.123189.1003","DOIUrl":"https://doi.org/10.21608/mjard.2022.123189.1003","url":null,"abstract":"","PeriodicalId":18575,"journal":{"name":"Minia Journal of Agricultural Research and Development","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82575853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-16DOI: 10.21608/mjard.2022.121745.1002
M. Badr, Mahmoud Abdou
{"title":"Influence of some natural substances on caraway plants","authors":"M. Badr, Mahmoud Abdou","doi":"10.21608/mjard.2022.121745.1002","DOIUrl":"https://doi.org/10.21608/mjard.2022.121745.1002","url":null,"abstract":"","PeriodicalId":18575,"journal":{"name":"Minia Journal of Agricultural Research and Development","volume":"181 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80279297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-16DOI: 10.21608/mjard.2022.116191.1000
Enaam Fekry, Mohamed Ali, Samia Ahmed, S. Haddad
This work aims to study the factors that affect the activity of actinomycetes in the production of antimicrobial whether they are antifungal or anti-bacterial. These factors are temperature, pH, concentration of sodium chloride salt (NaCl), carbon sources, nitrogen sources and the best media for the growth of actinomycetes. This was done with three isolates of actinomycetes AC2, AC9 and AC12). The results showed that the best temperature for the growth of the three isolates of actinomycetes was from 35-40oC, and the best pH was between 7 -7.2. The three isolates tolerated salinity with a concentration ranging from 2-5%. The best carbon source for the three isolates was starch, but with different concentrations. The best carbon source for AC2, AC9 and AC12 was starch at concentrations of 20 g/l, 10gl and 25gl, which gave inhibition zones 24, 45 and 34mm, respectively. The results indicate that the best nitrogen source for AC2, AC9 and AC12 was ammonium sulfate at concentration 2.5 g/l, sodium nitrate at concentration 1.5gl, and sodium nitrate at concentration 1.5gl which gave inhibition zones 20, 27 and 38 mm, respectively.
{"title":"Factors affecting the efficiency of actinomycetes in the production of antimicrobial","authors":"Enaam Fekry, Mohamed Ali, Samia Ahmed, S. Haddad","doi":"10.21608/mjard.2022.116191.1000","DOIUrl":"https://doi.org/10.21608/mjard.2022.116191.1000","url":null,"abstract":"This work aims to study the factors that affect the activity of actinomycetes in the production of antimicrobial whether they are antifungal or anti-bacterial. These factors are temperature, pH, concentration of sodium chloride salt (NaCl), carbon sources, nitrogen sources and the best media for the growth of actinomycetes. This was done with three isolates of actinomycetes AC2, AC9 and AC12). The results showed that the best temperature for the growth of the three isolates of actinomycetes was from 35-40oC, and the best pH was between 7 -7.2. The three isolates tolerated salinity with a concentration ranging from 2-5%. The best carbon source for the three isolates was starch, but with different concentrations. The best carbon source for AC2, AC9 and AC12 was starch at concentrations of 20 g/l, 10gl and 25gl, which gave inhibition zones 24, 45 and 34mm, respectively. The results indicate that the best nitrogen source for AC2, AC9 and AC12 was ammonium sulfate at concentration 2.5 g/l, sodium nitrate at concentration 1.5gl, and sodium nitrate at concentration 1.5gl which gave inhibition zones 20, 27 and 38 mm, respectively.","PeriodicalId":18575,"journal":{"name":"Minia Journal of Agricultural Research and Development","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82801674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-01DOI: 10.21608/mjard.2021.222446
H. Eshbah, A. Mohamed, O. Zedan, A. Ghanem
{"title":"PHYTOCHEMICAL COMPONENTS IN DIFFERENT TYPES OF POLLEN AND THEIR EFFECTS ON HONEY BEES","authors":"H. Eshbah, A. Mohamed, O. Zedan, A. Ghanem","doi":"10.21608/mjard.2021.222446","DOIUrl":"https://doi.org/10.21608/mjard.2021.222446","url":null,"abstract":"","PeriodicalId":18575,"journal":{"name":"Minia Journal of Agricultural Research and Development","volume":"41 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74520613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-01DOI: 10.21608/mjard.2021.222455
M. Abdou, A. Abdel-Fatah
Fenugreek (Trigoneila foenum-greecum, L.) is an annual herbaceous plant commonly known as methi, belongs to the sub Family Papilionaceae, Family Fabaceae. it is used both as herb (the leaves) and as spice (the seed) (Basu et al., 2014).Fenugreek seeds contain many compounds belong to glycosides and flavonoids that give the plant pigment. They are important compounds for treating diabetes, liver diseases, eye pressure protection and anemia treatments, also contain vitamins such as (A, B1 and B2), as well as rich in some minerals, including K, P, Ca, Mg, Fe and Mn. Also, seeds contain hormone precursors that can increase milk production in nursing mothers (Muhammed, 2017 and Meena et al., 2018).
葫芦巴(Trigoneila foenum-greecum, L.)是一种一年生草本植物，俗称豆科，属于凤蝶科，豆科。它既可用作草药(叶子)，也可用作香料(种子)(Basu et al.， 2014)。胡芦巴种子含有许多化合物，属于糖苷和类黄酮，它们赋予植物色素。它们是治疗糖尿病、肝病、保护眼压和治疗贫血的重要化合物，还含有维生素(A、B1和B2)，以及丰富的一些矿物质，包括K、P、Ca、Mg、Fe和Mn。此外，种子含有激素前体，可以增加哺乳期母亲的产奶量(Muhammed, 2017和Meena等人，2018)。
{"title":"EFFECT OF PLANTING DATE AND COMPOST FERTILIZATION ON FENUGREEK PLANT","authors":"M. Abdou, A. Abdel-Fatah","doi":"10.21608/mjard.2021.222455","DOIUrl":"https://doi.org/10.21608/mjard.2021.222455","url":null,"abstract":"Fenugreek (Trigoneila foenum-greecum, L.) is an annual herbaceous plant commonly known as methi, belongs to the sub Family Papilionaceae, Family Fabaceae. it is used both as herb (the leaves) and as spice (the seed) (Basu et al., 2014).Fenugreek seeds contain many compounds belong to glycosides and flavonoids that give the plant pigment. They are important compounds for treating diabetes, liver diseases, eye pressure protection and anemia treatments, also contain vitamins such as (A, B1 and B2), as well as rich in some minerals, including K, P, Ca, Mg, Fe and Mn. Also, seeds contain hormone precursors that can increase milk production in nursing mothers (Muhammed, 2017 and Meena et al., 2018).","PeriodicalId":18575,"journal":{"name":"Minia Journal of Agricultural Research and Development","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88713938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Low-N maize variety is developed for its ability to tolerate low nitrogen soil environment. This experiment was conducted to study the genetic implication of Low-N maize variety for grain yield and related traits under low nitrogen soil conditions triple test cross analysis. Inbred lines used for the study were generated from twelve low nitrogen tolerance open pollinated maize varieties after six generations of selfing. Two inbred lines along with their F1 were used as testers for ten inbred lines in a triple test cross pattern to generate 30 crosses. The 30 crosses, their parents and the testers to State University, Ado-Ekiti during 2017 planting season. The experimental design was a Randomized Complete Block Design (RCBD). Data were collected on plant height, ear height, days to 50% anthesis, days to 50% silking, incidence of curvularia leaf spot, blight, plant aspect, ear aspect, ear rot, stay green, cob per plant, ear weight, grain moisture content and grain yield. All data were subjected to analysis of variance and complete genetic estimates. Additive and dominants were significant (P < 0.05) for all traits; however, epitasis estimates were not significant for all the traits tested. The degree of dominance component indicated partial dominance for all the traits. Correlation coefficients for days to 50% anthesis and 50% silking, plant height, ear height, number of cobs per plant and grain yield were positive and significant (P < 0.05). Since both additive and dominance gene actions were important for low-N traits, the use of reciprocal recurrent selection procedure can be adopted in incorporating the trait into elite maize varieties.
{"title":"Genetic analysis of low-n traits in maize (Zea mays L) using triple test cross","authors":"M. Afolabi, G. O. Agbowuro, A. Salami, M. Akoroda","doi":"10.4314/jard.v20i1.3","DOIUrl":"https://doi.org/10.4314/jard.v20i1.3","url":null,"abstract":"Low-N maize variety is developed for its ability to tolerate low nitrogen soil environment. This experiment was conducted to study the genetic implication of Low-N maize variety for grain yield and related traits under low nitrogen soil conditions triple test cross analysis. Inbred lines used for the study were generated from twelve low nitrogen tolerance open pollinated maize varieties after six generations of selfing. Two inbred lines along with their F1 were used as testers for ten inbred lines in a triple test cross pattern to generate 30 crosses. The 30 crosses, their parents and the testers to State University, Ado-Ekiti during 2017 planting season. The experimental design was a Randomized Complete Block Design (RCBD). Data were collected on plant height, ear height, days to 50% anthesis, days to 50% silking, incidence of curvularia leaf spot, blight, plant aspect, ear aspect, ear rot, stay green, cob per plant, ear weight, grain moisture content and grain yield. All data were subjected to analysis of variance and complete genetic estimates. Additive and dominants were significant (P < 0.05) for all traits; however, epitasis estimates were not significant for all the traits tested. The degree of dominance component indicated partial dominance for all the traits. Correlation coefficients for days to 50% anthesis and 50% silking, plant height, ear height, number of cobs per plant and grain yield were positive and significant (P < 0.05). Since both additive and dominance gene actions were important for low-N traits, the use of reciprocal recurrent selection procedure can be adopted in incorporating the trait into elite maize varieties.","PeriodicalId":18575,"journal":{"name":"Minia Journal of Agricultural Research and Development","volume":"43 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73410325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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