Journal of Oilseed Brassica 

About: Journal of Oilseed Brassica is an academic journal. The journal publishes majorly in the area(s): Brassica & Crop yield. It has an ISSN identifier of 0976-1454. Over the lifetime, 204 publications have been published receiving 1223 citations.

Alternaria blight: a chronic disease in rapeseed-mustard

Abstract: Alternaria blight disease caused by Alternaria brassicae (Berk.) Sacc. has been reported from all the continents of the world affects most cruciferous crops and is one among the important diseases of rapeseedmustard causing severe yield losses with no proven source of transferable resistance in any of the hosts. The pathogen is greatly influenced by weather with the highest disease incidence reported in wet seasons and in areas with relatively high rainfall. A. brassicae can affect host species at all stages of growth, including seed. Symptoms of the disease are characterized by formation of spots on leaves, stem and siliquae. Identification of signal molecules for induced resistance, development of bioformulations and disease forecasting module will enable trigger newer strategies for eco-friendly disease management for providing safer Alternaria blight free production of rapeseed-mustard with improved crop health.

Sclerotinia sclerotiorum (Lib) de Bary causing Sclerotinia rot in oilseed Brassicas: A review

Abstract: Sclerotinia sclerotiorum (Lib.) de Bary, the causal organism of stem rot of Brassica and over 500 host plants is distributed worldwide. Selerotinia rot is menace to cultivation of oilseed Brassica crops in the world. Infection occurs on leaves, stems and pods at different developmental stages, causing seed yield losses of up to 80%, as well as significant reductions in oil content and quality. The initial mycelia infection at the base of the stem is an appearance of elongated water-soaked lesions that expand rapidly. Ascosporic (carpogenic) infection is quite general and occurs on the leaves or leaf axil. Effective pathogenesis by S. sclerotiorum requires the secretion of pathogenicity factors including oxalic acid and extracellular lytic enzymes. Germination of overwintered sclerotia, and release, survival and germination of ascospores are important factors for the development of disease and in the life cycle of this pathogen. Isolates of S. sclerotiorum show high level of morphological variability and molecular diversity. Management of S. sclerotiorum is a major challenge, and the best being the integration of various IPM measures. Partial resistance has been identified in some brassica napus and, B. Juncea, genotypes, though, wild Brassicas show better resistant reactions. This review summarizes current information on biology, physiology, epidemiology and molecular aspects of pathogenicity. In addition, current tools for research and stratagies to combat S. sclerotiorum have also been discussed.

Heterosis and combining ability for yield and its component traits in Indian mustard [Brassica juncea (L.)].

Abstract: Six parents viz. BPR 380-1, RSK 28, RH (OE) 0103, SKM 532, GM 3 and GM 1 were crossed in diallel fashion (excluding reciprocals) in Indian mustard (Brassica juncea (L.) Czern & Coss). The resultant fifteen hybrids along with six parents were evaluated in randomized block design with three replications during Rabi 2009. The analysis of variance for experimental design revealed that high significant differences existed among genotypes for all the characters. This indicated that considerable amount of genetic variation among parents and hybrids for all the traits. Most heterotic hybrids for seed yield per plant were RSK 28 x RH (OE) 0103 and GM 3 x GM 1. Analysis of variance for combining ability showed the significance of gca and sca variances for all the characters except oleic acid. The ratio of variance due to gca and sca was below unity for all the characters under study. The results of specific combining ability effects revealed that, the crosses, SKM 532 x GM 3, RSK 28 x RH(OE)0103 and BPR 380-1 x RSK 28 were three best cross combinations for seed yield, these crosses also showed moderate standard heterosis.

Combining ability analysis in Indian mustard (Brassica juncea L. Czern & Coss)

Abstract: Combining ability analysis of 10  10 diallel set of crosses in Indian mustard for ten quantitative traits revealed preponderance of non-additive gene effects for plant height, number of primary branches per plant and seed yield per plant, whereas additive gene effect was found to be predominant for the inheritance of rest of the characters The parent Durgamani, RLM-198 and Varuna were the good general combiners for seed yield and oil content Varuna and Durgamani also exhibited desirable general combining ability effect for earliness and dwarfness Among the cross combinations, cross Kanti  Pusa Agrani exhibited superior specific combining ability effects for seed yield, oil content and other yield attributing traits Most of the crosses involving high  low general combining parents, exhibited high sca effects for various traits

Interactive effect of sowing dates and nutrient sources on dry matter accumulation of Indian mustard (Brassica juncea L.)

Abstract: A field study was conducted during 2015 and 2016 to evaluate the response of the nutrient sources and sowing dates on dry matter accumulation pattern of the Indian mustard (Brassica juncea L.). The treatments consisted three sowing dates (November 17, November 27 and December 7) and eight nutrient sources (Control, 100% RDF, 100% RDF + Azotobactor, 100% RDF + PSB, 100% RDF + Azotobactor + PSB, 75% RDF + 25 % N through Pressmud+ Azotobactor, 75% RDF + 25 % N through PM + PSB, 75% RDF + 25 % N through PM + Azotobactor + PSB). Results revealed that interaction effect of sowing dates and nutrient sources was observed significant on dry matter accumulation. The application 75% RDF and 25% N through pressmud + Azotobactor + PSB on November 17 highest dry matter was recorded at 45 DAS (14.1, 13.4 and 13.8 g plant-1), 90 DAS (49.2, 45.3 and 47.3 g plant-1) and at harvest (53.9, 48.9 and 51.4 g plant-1), during both the years and in pooled analysis, respectively. Moreover, higher dry matter accumulation was observed at the time of harvesting (59.7, 62.5, 61.1 per cent) on 17 November sowing with the application of 75% RDF and 25% N through pressmud + Azotobactor + PSB over control of all three sowing dates during both the years, respectively. The present study highlighted the practical importance of the sowing dates and nutrient sources combination effect on dry matter accumulation of Indian mustard.