2003 Volume 2 Issue 2 Pages 109-114
The effects of the variety and cropping type under different planting densities on the uniformity of cabbage head weight were investigated. High uniformity of cabbage head weight was obtained using a small-spreading and early ripening variety despite high density planting because of the shorter period of competition between plants and a higher H (head-weight)/T (total top weight) ratio. A high uniformity of cabbage head weight in winter sown-early summer harvesting cropping type (cropping type for rising temperatures) was successfuly maintained despite the high density cultivating condition compared with summer sown-winter harvesting cropping type (cropping type for decreasing temperatures) because of suppressed spreading of the initial growth. We conclude from these observations that the once over harvest of cabbage crops can easily be introduced using the cropping type for rising temperatures. In the cropping type for decreasing temperatures, it is effective to maintain sufficient uniformity of cabbage head weight by planting an early ripening variety.
