Evaluation of genetic variance components for some quantitative traits in rapeseed (Brassica napus L.)

Abstract

Three hybrid combinations obtained by crossing six winter rapeseed cultivars were analyzed for the impact of genes with additive and dominant effects and their interactions with inheritance of plant height and first lateral branch height. The linkage among the expected progeny means was checked using the scaling test method (Mather, 1949), while the estimates of genetic effects and mode of inheritance was made by the Generation Mean Analysis (Mather and Jinks, 1982). The additive dominant model did not prove adequate for plant height in all three crosses, and for first lateral branch height in the second and third cross. The inadequacy of the model showed epistatic gene effects were also of large importance in the inheritance of these traits. Duplicate epistasis for plant height inheritance was found in all three cross combinations and for inheritance of height of the first lateral branch in second and third cross combination. However, it should be emphasized that duplicate epistasis among dominant positive genes occurred on plant height inheritance in C1 and C3, and on inheritance of first lateral branch height in C3. Duplicate epistasis among dominant negative genes occurred in C2 on the mode of inheritance of both traits. [Projekat Ministarstva nauke Republike Srbije, br. TR-31025]

Correlation, Regression and Path Analyses of Seed Yield Components in <i>Crambe abyssinica</i>, a Promising Industrial Oil Crop

“…Previous results about canola indicated that number of pods per plant had the highest direct effect on grain yield in canola. In addition, 1000-grain weight also had a high direct effect on grain yield [23][24][25][26][27][28][29][30]. Tusar-Patra et al [31] concluded that the strongest effect on seed yield was estimated for number of pods per plant followed by number of seeds per pod and 1000 seed weight.…”

“…Khan et al [32] found that number of branches, 1000-seed weight, and pods per plant affected the seed yield per plant. Marjanović-Jeromela et al [26] reported that the strongest direct effect on seed yield per plant was estimated for plant height, followed by that of number of pods per plant. Ghodrati et al [33] found that number of seeds per pod a Promising Industrial Oil Crop 46 was effective on canola seed yield.…”

Diversity of insect pollinators with reference to their impact on yield production of canola (Brassica napus L.) in Ismailia, Egypt

“…Canola, Brassica napus L, belongs to the family Brassicaceae and is cultivated in many parts of the world, standing out as an excellent economic alternative to other human consumable oils and biodiesels (Miri, 2007;Marjanović-Jeromela, 2008). In Egypt, canola has a bright future in contributing to a reduction in oil deficiency gap between production and consumption of edible oils, particularly as it could be successfully grown during winter season on newly reclaimed land outside the old zone of the Nile valley and thus get around competition with other crops grown in the old area of cultivation (Sharaan et al, 2002).…”

Comparison of electrophoretic protein profiles of Brassica rapa sub-species brown sarson through SDS-PAGE method

“…The SDS-PAGE method provides maximum protein based diversity among genotypes; it is cheap and quick method then other molecular methods (ISEMURA et al, 2001;GEPTS and BLISS, 1988;IQBAL et al, 2005;JAVID et al, 2004;RAHMAN and HIRATA, 2004). Various biochemical and molecular methods are used to study genetic diversity among different crop species/sub-species (VERMA et al, 2015;GOODARZI et al, 2015;IZADPANAH et al, 2015;MARJANOVIC-JEROMELA et al, 2014;HENAREH et al, 2016).…”