Effect of temperature changes on germination of three range grass species and implication for their conservation
Seed dormancy is wide spread in warm season grasses and can contribute to establishment and stand persistence when a reserve of dormant seeds preserves the opportunity for plant establishment over time (Voigt and Tischler,1997).Grass reseeding at smallholder livestock production level is a relatively new phenomenon.However, the success of artificial seeding of semi arid rangelands is often affected by limited understanding of the type of dormancy affecting the seeds being used.It is also affected by a dearth in dormancy breaking techniques required for improved germination and eventually well‐established forage stands.We needed therefore to establish farmer friendly possible dormancy breaking methods for the seeds of three semi arid rangeland grasses, which are being used in reseeding trials aimed at improving forage production in the southern rangelands of Kenya.Seeds of Masai lovegrass ( Eragrostis superba Peyr.), African foxtail ( Cenchrus ciliaris L.) and horsetail grass ( Chloris roxburghiana Schult.) were subjected to different temperature treatments.Two factors were recorded ; germination capacity (GC) and germination rate (coefficient of Velocity, CV) using Kotowski摧s velocity coefficient ( Voigt and Tischler, 1997).
Seed dormancy grass temperature germination percent and germination rate
E.C.Kirwa W.N.Mnene E.N.Muthiani Mweki P
KARI Kiboko Research Centre,P.O Box 12-90138 Makindu.
国际会议
呼和浩特
英文
2008-06-29（万方平台首次上网日期，不代表论文的发表时间）