Abstract
The plant Tropaeolum majus, popularly known as nasturtium, presents food, ornamental and medicinal importance. Studies on floral and carpometric characteristics generate basic knowledge for areas of science such as botany, genetics and plant breeding. This work has the objectives of analyzing the effect of combinations of doses of poultry litter on floral structures and the in vitro germination of T. majus pollen grains. From the experimental matrix Plan Puebla III were defined 9 combinations of poultry litter doses incorporated and covered. The design of the experiments was entirely random, varying the replicates number. The number of stamens, petals, sepals and carpels was verified per floral bud in each treatment. The in vitro germination rate of pollen grains was estimated in 5 culture media and 2 germination times, from flower buds randomly collected in the experiment. The overall mean of stamens, sepals, petals and carpels per floral bud was 8.23; 5; 5 and 3, respectively. The combinations of poultry litter doses influenced only the number of stamens. The in vitro germination rate of T. majus pollen grains varied in the culture media. There was no association between the combinations of poultry litter doses and the in vitro germination rate of pollen grains.
Highlights
The plant Tropaeolum majus L. is popularly known as nasturtium, “chagas”, blood flower, or mexico watercress
Considering the potential of the specie and the importance of floral biology and in vitro germination studies, the objective of this study was to evaluate the effect of poultry litter doses on floral structures of T. majus
The response surface of the number of T. majus stamens according to poultry litter doses exhibited two regions of ancestry (Figure 4)
Summary
The plant Tropaeolum majus L. is popularly known as nasturtium, “chagas”, blood flower, or mexico watercress. This specie belongs to the Tropaeolaceae family, and it can be found mainly in Colombia, Brazil and Peru as a primitive diverse plant (Pintão, 1995). T. majus has been used in popular medicine for presenting antiviral, antibacterial, antifungal and antitumor properties (Pintão, 1995). The flowers are considered edible, used for human consumption in the preparation of many dishes (Botrel, 2016). According to Husti et al (2013), T. majus is an excellent source of minerals and antioxidants, flowers taste nice and spicy
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