Tropical pasture establishment, 2. Seed characteristics and field establishment [review; Queensland]. [Workshop paper]
1993
Hopkinson, J.M. (Queensland Dept. of Primary Industries, Walkamin (Australia). Walkamin Research Station)
The relationships between measured properties of tropical pasture seeds and their ability to produce emerged seedling populations in different seedbed environments are reviewed. Critical seed characteristics were perceived to be vital quality, measured satisfactorily as viability, and the impediments to germination imposed primarily by dormancy in tight-husked panicoid grass seeds and hardseededness in legumes. Experimentally, survival of seeds and seedlings in soil was closely related to vital quality. Dormancy in grass seeds, however, led to complications that hampered prediction of field emergence.
显示更多 [+] 显示较少 [-]