All grades and hybrids of a tomato are divided by growth type on 2 groups – determinant and indeterminantny. Or as sometimes call – kolovy and bush. Indeterminantny, or kolovy, or still they are called tall. tomatoes never stop the growth up. \u000d\u000aHeard about new Chinese grades like cherry and their unusual qualities. There are basic distinctions — large is more fruitful, small is more sweet. Yellow more with pleasure and less fruitful. Expensive hybrids are more fruitful.