野生达乌里胡枝子栽培条件下的生长特性研究

采集了7个野生生态型的达乌里胡枝子种子在山西晋中进行栽培,研究物候期,生长特性和生产性能。结果表明,山西5个野生生态型的达乌里胡枝子均能在晋中地区渡过完整的生育期,能够收获成熟的种子,而河南的2个生态型不能渡过完整的生育期,20%的花无法正常形成种子。达乌里胡枝子从分枝期到孕蕾期的生长速度变化最大,从盛花期到结实期的生殖枝生长速度逐渐降低;不同生态型的干鲜比差异显著(P<0.05),干鲜比从分枝期(0.31)到结实期(0.43)呈现出不断增大的趋势。不同生态型野生达乌里胡枝子的干草产量差异显著(P<0.05),结实期干草产量达到最大值。

Study on the cultivation and tame of wild Lespedeza davurica

Seven populations of wild Lespedeza davurica were cultivated in Jinzhong of Shanxi Province for investigating the growing stage,growth character and production performance.The results showed that 5 populations from Shanxi performed well in all growth stages and the mature seeds could be harvested.The growth from jointing to heading stages was greatly varied,and it slowed down from blooming to bearing stages.The ratios of dry matter to fresh matter of 7 populations were significantly different in jointing and bearing stages（P〈0.05）,and it increased with the procreating from jointing stage（0.31）to bearing stage（0.43）.The yields of 7 populations were significantly different（P〈0.05）,and it was the highest in the bearing stage.