A presença de compostos bioativos em frutas e hortaliças contribui para hábitos alimentares mais saudáveis ​​e maior qualidade. alface (Lactuca sativa L.) é a hortaliça folhosa aceitação no mercado consumidor, fonte vitaminas, minerais outros do metabolismo secundário das plantas. O objetivo deste estudo foi avaliar influência dos sistemas cultivo (orgânico, convencional hidropônico) Lactuca L....

Abstract This study investigated the effectiveness of foliar application sweet chestnut wood distillate on photosynthetic performance and growth lettuce ( Lactuca sativa L. cv ‘Canasta’), both alone in combination with soybean lecithin used as biosurfactant. Seedlings were treated a either mineral water (control), or 1:500 solutions 3% soy lecithin, plus lecithin. After 1 week, chlorophyll cont...

Bothriochloa laguroides var. laguroides (DC.) Herter, a native bluestem of America, has been shown to produce many biologically active compounds. The allelopathic potential of aqueous extracts from roots, stems and leaves was examined. Lettuce seeds (Lactuca sativa) and maize (Zea mays), the common allelopathy bioassay systems, as well as seeds from two native species, wintergreen paspalum (Pas...

In lettuce, Lactuca sativa short chain fatty acids (C(6) - C(9)) vary in their effectiveness as inhibitors of germination according to temperature; the higher the temperature, the greater the inhibition. A linear relationship exists between temperature and the dose causing half-maximal germination. Nonanoic (C(9)) acid is the most effective.When extrapolated to the abscissa, really zero concent...

Nutrients in the form of fertilizers and/or other additives such as amino acids, dramatically influence plant development and growth, plant nutrient composition and the level of soil pollution. Moreover, the treatment of soil microbiota is emerging as a new strategy in plant breeding to achieve desirable traits. Thus, integrated study of fertilizer application and soil microbiota might lead to ...