Transfer of auxinic herbicide resistance from Brassica kaber to Brassica juncea and Brassica rapa through embryo rescue

The experiment was conducted at the Agronomy farm of Sher-e-Bangla Agricultural University to identify the allelopathic effect of Brassica species along with their incorporation methods to control weeds in wheat field. The experiment was assigned in a split-plot design where three cultivated Brassica spp. were in the main plot and five different ways of green Brassica biomass inclusion were in the sub-plot. Brassica crops were uprooted at 30 days after sowing (DAS) and incorporated to the soil @ 0.5 kg m-2 as per treatment. Wheat seeds were sown on December 04, 2007 using 20 cm line to line distance. Weeds e.g., Amaranthus spinosus, A. viridis, Lindernia procumbens, Heliotropium indicum, Polygonum hydropiper, Celosis argentina, Ageratum conyzoides, Brassica kaber and Digitaria ischaemum were not found in the wheat field. Significantly the highest weed dry matter (1.72 g m-2) was found in Brassica juncea plots at 30 DAS but in Brassica napus field (1.44 g m-2) at 50 DAS. The lowest weed dry matter at 30 DAS (0.89 g m-2) was recorded with total incorporation of Brassica biomass to the soil but 50% incorporation and 50% spreading at 50 DAS. The Brassica biomass spreading above ground, mixed with soil and 50% spreading + 50% mixed with soil resulted positively compared to other ways of biomass incorporation. The highest grain yield (3.83 t ha-1) of wheat was given by Brassica juncea when spreaded on the above ground soil.Bangladesh Agron. J. 2014, 17(1): 73-80

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Do escaped transgenes persist in nature? The case of an herbicide resistance transgene in a weedy Brassica rapa population

Molecular Ecology ◽

10.1111/j.1365-294x.2007.03567.x ◽

2008 ◽

Vol 17 (5) ◽

pp. 1387-1395 ◽

Cited By ~ 188

Author(s):

S. I. WARWICK ◽

A. LÉGÈRE ◽

M.-J. SIMARD ◽

T. JAMES

Keyword(s):

Brassica Rapa ◽

Herbicide Resistance

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Mineral composition of oil-free seeds of Brassica napus, B. rapa and B. juncea as affected by location and year

Canadian Journal of Animal Science ◽

10.4141/a97-116 ◽

1999 ◽

Vol 79 (3) ◽

pp. 405-408 ◽

Cited By ~ 7

Author(s):

J. M. Bell ◽

G. Rakow ◽

R. K. Downey

Keyword(s):

Brassica Napus ◽

Key Words ◽

Brassica Juncea ◽

Mineral Composition ◽

Brassica Rapa ◽

Mineral Content ◽

The Other ◽

Fe And Mn ◽

Mineral Levels ◽

Cu And Zn

Three cultivars of Brassica (Westar, Brassica napus; Tobin, B. rapa; Cutlass, B. juncea) were grown in four locations in 4 successive years, with duplicate samples taken from each treatment. Harvested seed was hexane-extracted, ground and analyzed for mineral content. The average contents (mg kg−1) were: Ca, 0.64; P, 1.12; Mg, 0.56%; Cu, 6.2; Zn, 46; Fe, 188; and Mn, 55. Values for Westar and Tobin were generally similar but Cutlass contained less Ca, Mg, Fe and Mn and more Cu and Zn (P < 0.01). Locations affected all mineral levels. One location produced samples lower in Ca, P, Cu and Mn but higher in Zn than the other locations (P < 0.01). Year-to-year variability was of minor consequence. Key words: Brassica napus, Brassica rapa, Brassica juncea, mineral, seed

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SUSCEPTIBILITIES OF SPECIES AND CULTIVARS OF CANOLA AND MUSTARD TO INFESTATION BY ROOT MAGGOTS (DELIA SPP.) (DIPTERA: ANTHOMYIIDAE)

The Canadian Entomologist ◽

10.4039/ent126251-2 ◽

1994 ◽

Vol 126 (2) ◽

pp. 251-260 ◽

Cited By ~ 39

Author(s):

L.M. Dosdall ◽

M.J. Herbut ◽

N.T. Cowle

Keyword(s):

Brassica Napus ◽

Quantitative Determination ◽

Brassica Juncea ◽

Brassica Rapa ◽

Growing Season ◽

Sinapis Alba ◽

Root Damage ◽

Population Densities ◽

Short Growing Season

AbstractFour species of Cruciferae [canola species Brassica rapa L. and Brassica napus L., and mustard species Brassica juncea (L.) and Sinapis alba L.], and various cultivars of each species, were evaluated for susceptibilities to infestation by Delia spp. (Diptera: Anthomyiidae) under field conditions in central Alberta, Canada. Susceptibility was measured throughout the season by recording numbers of eggs of Delia spp. laid on or near individual plants, and at the end of the season by a semi-quantitative determination of injury inflicted by larvae on taproots. Differences in susceptibility occurred among and within canola and mustard species. Plants of B. rapa were most susceptible to Delia spp.; both mean eggs per plant and mean damage ratings per plant on B. rapa significantly exceeded those of all other species studied. Intermediate susceptibility was observed for plants of B. napus and B. juncea; plants of S. alba were least susceptible. In general, differences in susceptibility were greater among species than among cultivars within species. Root damage generally correlated with oviposition among and within species, suggesting that the mechanism of resistance by cruciferous species to infestation by Delia spp. is antixenosis or nonpreference. Results of this study indicate that canola growers in regions infested annually by high population densities of Delia spp. should seed B. napus or B. juncea rather than B. rapa. However, if a short growing season necessitates seeding B. rapa, then growers should select the more resistant cultivars of this species.

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Protoplast isolation and culture for somatic hybridisation of rapid cycling Brassica rapa with ‘Anand’ CMS and Brassica juncea

Plant Cell Tissue and Organ Culture (PCTOC) ◽

10.1007/s11240-012-0114-0 ◽

2012 ◽

Vol 109 (3) ◽

pp. 565-572 ◽

Cited By ~ 6

Author(s):

Yu-Ji Lian ◽

Xiao-Mei Zhao ◽

Guang-Zhe Lin ◽

Hak-tae Lim

Keyword(s):

Brassica Juncea ◽

Brassica Rapa ◽

Protoplast Isolation ◽

Rapid Cycling ◽

Somatic Hybridisation

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Interspecific hybridization between Brassica napus and Brassica rapa ssp. chinensis genotypes through embryo rescue and their evaluation for crossability

BioTechnologia ◽

10.5114/bta.2015.54204 ◽

2015 ◽

Vol 2 ◽

pp. 184-191 ◽

Cited By ~ 3

Author(s):

Janetta Niemann ◽

Magdalena Olender ◽

Andrzej Wojciechowski ◽

Agnieszka Tomkowiak

Keyword(s):

Brassica Napus ◽

Interspecific Hybridization ◽

Brassica Rapa ◽

Embryo Rescue

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Identification of Resistance to Peppery Leaf Spot among Brassica juncea and Brassica rapa Plant Introductions

HortScience ◽

10.21273/hortsci.42.5.1140 ◽

2007 ◽

Vol 42 (5) ◽

pp. 1140-1143 ◽

Cited By ~ 6

Author(s):

W. Patrick Wechter ◽

Mark W. Farnham ◽

J. Powell Smith ◽

Anthony P. Keinath

Keyword(s):

Brassica Juncea ◽

Pseudomonas Syringae ◽

Brassica Rapa ◽

Leaf Spot ◽

Plant Introduction ◽

Leafy Vegetables ◽

Leaf Spot Disease ◽

Disease Symptoms ◽

Plant Introductions ◽

Leafy Greens

Brassica leafy greens (Brassica juncea L. and Brassica rapa L.) represent one of the most economically important vegetable crop groups in the southeastern United States. In the last 10 years, numerous occurrences of a leaf-spot disease on these leafy vegetables have been reported in several states. This disease, known as peppery leaf spot, is now causing serious crop losses and has been attributed to the bacterial phytopathogen Pseudomonas syringae pv. maculicola (Psm). To date, it appears that all cultivars of the Brassica leafy greens are susceptible, and available pesticides for control of this disease appear unable to reduce the disease to acceptable levels. Thus, we undertook a search for potential resistance to this disease among accessions of B. juncea and B. rapa included in the U.S. Plant Introduction (PI) collection. In greenhouse trials, we screened commercial cultivars and 672 U.S. PIs (226 B. juncea and 446 B. rapa) for resistance to Psm with artificial inoculation. Although severity of disease symptoms was significantly different among inoculated accessions, no acceptable levels of resistance were found in any of the more than 400 B. rapa accessions tested. Only two B. juncea accessions (PI 195553 and G 30988) of 226 tested had acceptable levels of resistance that might prove economically useful.

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