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Evaluation of two advanced generation boro rice mutants based on morpho-physiological criteria 基于形态-生理学标准评估两种高级一代波罗水稻突变体

Bangladesh Journal of Nuclear Agriculture Pub Date : 2024-03-12 DOI: 10.3329/bjnag.v37i2.71782

MA Mondal, S. Khanam, M. Roknuzzaman

{"title":"Evaluation of two advanced generation boro rice mutants based on morpho-physiological criteria","authors":"MA Mondal, S. Khanam, M. Roknuzzaman","doi":"10.3329/bjnag.v37i2.71782","DOIUrl":"https://doi.org/10.3329/bjnag.v37i2.71782","url":null,"abstract":"Experiments were performed at farmers’ fields of five locations viz., Mymensingh, Sherpur, Jamalpur, Natore and Naogaon districts with two promising Boro rice mutants, RM-16(N)-8, RM-16(N)-10 and a check, BRRI dhan58 to evaluate some morpho-physiological features and its impact on grain yield. The experiment was setup in RCB design with three replications. Results revealed that high yielding genotypes, in general, showed superiority in morpho-physiological characters (leaf area, leaf area index, total dry mass production, absolute growth rate, relative growth rate, chlorophyll, total sugar and soluble protein content in leaves and harvest index) than the low yielding one. Results further indicated that genotype improvement efforts have achieved higher grain yield by higher growth rate at early growth stages and better assimilate partitioning to economic yield and short stature plants are unlikely to improve harvest index and resistant to lodging in rice. The mutant, RM-16(N)-10 had medium plant stature with greater biomass production capacity, superiority in growth and biochemical parameters and improve dry matter partitioning to economic yield which resulted higher number of grains panicle-1, thereby grain yield. In contrast, RM-16(N)-8 showed inferiority in morpho-physiological characters and performed the lowest yield attributes and grain yield. This information may be used in future plant breeding programme.\u0000Bangladesh J. Nuclear Agric, 37(2): 69-80, 2023","PeriodicalId":511555,"journal":{"name":"Bangladesh Journal of Nuclear Agriculture","volume":"112 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140250694","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}

引用次数: 0

Efficacy of Entomopathogens, Botanical and New Generation Insecticides Against Papaya Mealybug 昆虫病原体、植物杀虫剂和新一代杀虫剂对木瓜蚧壳虫的功效

Bangladesh Journal of Nuclear Agriculture Pub Date : 2024-03-12 DOI: 10.3329/bjnag.v37i2.71783

A. Islam, MA Haque, G. Das, AA Khan, Maa Topu, MS Rahman, MJ Hasan, Mlr Mollah, M. Roknuzzaman

{"title":"Efficacy of Entomopathogens, Botanical and New Generation Insecticides Against Papaya Mealybug","authors":"A. Islam, MA Haque, G. Das, AA Khan, Maa Topu, MS Rahman, MJ Hasan, Mlr Mollah, M. Roknuzzaman","doi":"10.3329/bjnag.v37i2.71783","DOIUrl":"https://doi.org/10.3329/bjnag.v37i2.71783","url":null,"abstract":"The papaya mealybug is an invasive polyphagus pest species causing several economic damages to a wide range of agricultural crop. Five new generation insecticides of different groups, one botanical and one entomopathogenic fungus (Beauveria bassiana) were evaluated in laboratory for their effectiveness in reducing mealybug incidence on papaya. The present study was conducted to evaluate the toxic effect of different insecticides at different concentration against P.marginatus. Among the 7 insecticides, Imixam 70 WDG (Imidacloprid+Thiamethoxam) was the most effective insecticide followed by Ravjum 14.5 SC (Indoxacarb), Saka 25 SC (Abamectin 5% +Spirodiclofen 20%), Imixan and Biotrin 0.5% (Matrin), Tundra 20 SP (Acetameprid), Antario (Bacillus thuringiensis+Abamectin) and Beauveria bassiana, respectively.All the selected insecticides provided their highest efficacy at their maximum doses as well as within 7-9 DAT, among them two new generation insecticides e.g. Saka 25 SC (Abamectin 5% +Spirodiclofen 20%) @ 1.0 ml/L, Ravjum 14.5 SC (Indoxacarb) @ 1.0 ml/L and the botanical insecticide Biotrin 0.5% upto 7 DAT would be effective in controlling papaya mealybug considering the efficacy. To confirmation of the results, need to be tested under field condition.\u0000Bangladesh J. Nuclear Agric, 37(2): 81-88, 2023","PeriodicalId":511555,"journal":{"name":"Bangladesh Journal of Nuclear Agriculture","volume":"50 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140251147","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}

引用次数: 0

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