Swede rape

Rapeseed/Canola belongs to the turnip rutabaga, cabbage, Brussels sprouts, and mustard family of crops that can be grown at low temperatures and moderate humidity. Three species have been grown as oilseeds Brassica napus, known in Europe as rape, oil rape, Swede rape, and Argentine rape B. campestris, known as rapeseed, oil turnip, turnip rape, and Polish rape and B. juncea, known as leaf mustard, brown mustard, Oriental mustard, and Indian mustard. B. campestris was grown in India as early as 2000-1500 BC. 

Other Whole Oilseeds. Various oilseeds have been fed whole, or dehulled, when available for feed at competitive prices or in grades substandard for extraction but still wholesome for feeding. Examples include safflower (Carthamus tinctorius), fat content 35%, dmb and oil-type sunflower seed fat content 44%, dmb. Currently, interest is high in feeding whole canola seed (41 6% oil) in Canada and northern European countries. Double-zero strains of Brassica napus (rapeseed, oilseed rape, swede rape, and Argentine rape) and Brassica campestris (turnip rape, oil... 

The rapes grown in Britain are usually swede-rapes (B. napus), although turnip-rapes (B. campestris) also occur. Rape may be included in seed mixtures for pastures, in order to provide forage until the grasses become established. The nutritive value of rapes is similar to that of the kales. A forage rape and kale hybrid (var. Swift) is valued for fast growth combined with winter hardiness. 

Oilseed rape (sometimes also known as swede rape) and turnip oilseed rape are two very similar species. Breeders, Pre-Basic, Basic and certified (Cl) seed generations are available. There is no second generation (C2) of certified seed permitted. 

The genus Brassica comprises some 40 species, of which the following are of agricultural importance kales, cabbages, rapes, turnips and swedes. Some of the brassicas are grown primarily as root crops, and these will be discussed in Chapter 21. 

Recently numbers of this pest have increased in the UK. Mainly a problem in turnips, oilseed rape and swedes. 

Oilseed rape and tnmip rape are 60-70% self-fertile bnt they will also ont-cross readily with other species, if in flower, such as swedes, fodder tnmips, fodder rape, black and brown mustards and Chinese cabbage. Volunteer oilseed rape plants in neighbouring fields can be an important source of pollen contamination (especially the high emcic acid varieties). Isolation requirements for seed crops are therefore quite stringent. There should be a physical barrier or at least 2 m fallow between the crop and aity other crop likely to cause contamination. In addition, there should be an isolation gap of at least 200 m between a certified seed crop and aity source of pollen contamination such as other varieties of oilseed rape or any of the crops mentioned above. For the production of Basic seed this minimum isolation gap should be doubled to 400 m and for hybrid varieties these distances must be increased by a further 100 m. 

Swede group including oilseed rape (colza) Mustard - brown... 

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