Growth and fruit characteristics as affected by different planting distances among plant types in pepper (Capsicum annuum L.) for pickles.

摘要

This experiment was conducted to determine the effects of planting distance (in-row spacings of 30, 45, 60 and 70 cm) on jalapeno pepper (Capsicum annuum cv. Sierra Fuego) and the effects of plant types (erect, semi-spreading and spreading) on pickling pepper grown at in-row spacings of 20, 30, and 45 cm. In jalapeno pepper, stem diameter gradually thickened with increasing in-row spacing; however, plant height, length and width of leaves, and main stem length were not different among in-row spacings. The external characteristics and colour degree of jalapeno pepper fruit were not different among in-row spacings. The yield per plant increased with increasing in-row spacing; however, yield per unit area increased as in-row spacing decreased, the highest being at 30 cm. There was no difference in nutrient contents in various in-row spacing. In different plant types, plant height showed no difference among in-row spacings, but stem diameter increased as in-row spacing increased. There were no significant differences in fruit characteristics such as fruit length, fruit width, sugar contents, fruit hardness, and colour degree among in-row spacings, but fruit length was long, and fruit width diminished as in-row spacing decreased. The number of fruits and yield per plant increased with increasing in-row spacing, but the total yield in unit area was highest at the lowest in-row spacing of 30 cm regardless of plant type..