Seasonal changes in the architecture of ryegrass, clover and ryegrass-clover swards in relation to cutting intensity
1999
Rogalski, M. | Kryszak, J. (Uniwersytet Szczecinski, Szczecin (Poland). Katedra Ekologii Roslin)
The effect of the utilization intensity of perennial ryegrass and white clover grown separately and in a mixture on their yields and sward architecture was investigated. In the mixture tretment, equal quantities of the two plant species were sown. Two levels of micro-plot utilization intensity were adopted. Yield control was carried out using a sward gripper which allows to collect sward samples in circumstances in which plants grow in their natural conditions, i.e. taking into account distribution of shoots leaves, etc. The collected samples were chopped into 5 cm long segments and, in each sward layer, the plant material was separated into grass leaf blades, generative shoots and stalks, clover leaf blades and petioles. In the case of the examined mixed sward, the distribution of the aboveground foliage, especially leaf assimilation area, was different for clover and grass, and allowed mutual complementation of the two components and their harmonious co-existence
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