Avdeenko S.S. 1
1 Don state agrarian university
In the conditions of the Rostov region researches on studying of morphological and biological features and economic-valuable signs of 22 domestic breeds of salad sheet (sowing) are conducted, the assessment of infl uence of growth stimulants on productivity of a breed the Moscow hotbed is given. For reception of the greatest quantity of production of salad sheet in the conditions of the Rostov region it is expedient to cultivate breeds with the season of vegetation till 45 days – the Ouk-wood, the Entertainment and Jumble, and for the purpose of augmentation of duration of the season of arriving production – breeds of Credo and Riviera. The least quantity of nitrates among cos lettuces on the average for 2003-2005 is accumulated by breeds the Entertainment, Credo and the Gourmet. Processing of seeds epinom-ekstra and Baikal promotes reduction of the season of seeding emergence for 3–4 days and from shoots before harvesting for 4–5 days, thereby allowing to receive salad production in earlier times.