Reproductive characteristics of citrus rootstocks grown under greenhouse and field environments
AUTOR(ES)
Guerra, Divanilde, Wittmann, Maria Teresa Schifino, Schwarz, Sérgio Francisco, Souza, Paulo Vitor Dutra de, Campos, Samanta Siqueira de
FONTE
Crop Breed. Appl. Biotechnol.
DATA DE PUBLICAÇÃO
2013-10
RESUMO
The aim of the present study was to evaluate the possible effect of environmental factors on meiosis, meiotic index, pollen viability and in vitro germination of pollen from stock plants of the rootstocks Trifoliate, 'Swingle', 'Troyer', 'Fepagro C13', 'Fepagro C37' and 'Fepagro C41' grown in a protected environment in comparison with stock plants grown in the field. The results showed that values for the characteristics analyzed in 2008, 2009 and 2010 were always higher in the field than in the greenhouse conditions. In the field, the average of normal meiotic cells was 60.05%, 44.44% and 60.12%, respectively, and in the greenhouse, 52.75%, 30.95% and 52.82%, respectively. Mean pollen viability in the field was 90.28%, 56.23% and 74.74%, and, in the greenhouse, 64.25%, 41.41% and 66.71%, respectively. As temperature oscillations were higher in the greenhouse than in the field, we suggest that this negatively affects the reproductive characteristics analyzed.
Documentos Relacionados
- Water relations of field-grown grapevines in the São Francisco Valley, Brazil, under different rootstocks and irrigation strategies.
- Soil respiration in cucumber field under crop rotation in solar greenhouse
- Intraspecific variation in sensitivity to ambient ultraviolet-B radiation in growth and yield characteristics of eight soybean cultivars grown under field conditions
- Genetically modified parthenocarpic eggplants: improved fruit productivity under both greenhouse and open field cultivation.
- Studies on Water Regime and Nitrogen Metabolism of Citrus Seedlings Grown under Water Stress 12