the development, survival, and reproduction of diamondback moth (dbm), plutella xylostella (l.), were studied in laboratory at 25±1°c, 65±5% rh and a 14l: 10d hours photoperiodism on five host plants of: cauliflower (brassica oleracea l. var. botrytis), two varieties of cabbage (b. oleracea l. var. capitata) namely ‘globe master’ and ‘scarlet ohara’, kohlrabi (b. oleracea l. var. gongylodes), a...

Under normal field growth conditions, canola (Brassica napus) seeds produce chloroplasts during early seed development and then catabolize the photosynthetic machinery during seed maturation, producing mature seeds at harvest that are essentially free of chlorophyll (Chl). However, frost exposure early in canola seed development disrupts the normal programming of Chl degradation, resulting in g...

Genomic selection (GS) is a modern breeding approach where genome-wide single-nucleotide polymorphism (SNP) marker profiles are simultaneously used to estimate performance of untested genotypes. In this study, the potential of genomic selection methods to predict testcross performance for hybrid canola breeding was applied for various agronomic traits based on genome-wide marker profiles. A tot...

this research was carried out in the research field of aboureyhan campus, university of tehran during 2006-07 growing season to investigate the effect of sinapis arvensis l. interference on yield and growth indexes of different canola (brassica napus l.) varieties. the experimental design was a complete randomized block arrangement in factorial with three replications. eight canola varieties na...

Introduction Assessment of the mating system of a crop is particularly important for the design of adequate breeding and genetic conservation programs. Genetic inbreeding and heterosis, important factors that affect the production of the crop, are related to the mating system. Brassica napus L. includes economically important crops, such as oilseed rape, rutabaga and leaf rape. B. napus is cons...

yazd asfordi phosphate rock (pr) was partially acidulated at five levels (0, 40, 60, 80, 100%) for increasing the relative agronomic effectiveness (rae) of canola (brassica napus l.), var. rgs in two calcareous and non-calcareous soils. the partially acidulated phosphate rock (papr) was compared vs. the standard fertilizer (triple superphosphate) in two levels (50 and 100 mg p/kg). this study w...

Winter canola (Brassica napus L.) production has increased in the United States over past several decades; however, there is little research southeastern on its agronomic and growth characteristics under different nitrogen (N) fertilizer rates. The objectives of this study were to determine effects N rates winter mortality, yield, oil protein content, seedpod shatter resistance across cultivars...

The objective of this study was to evaluate the effect aluminum and mitigating potential H2O2 on stress antioxidant responses in canola (Brassica napus var. oleifera (Moench) Delile) affecting emergence initial growth plants. Canola seeds, cultivar Hyola 61, were treated with different concentrations solution (0.0, 0.075, 0.15 M), later sown under 10, 20, 30 mmolc dm-3). After 20 days plant eme...