【摘要】 野牛草分株对养分异质性反应的研究表明:姊株能显著地从妹株分株生物量获益,但妹株并不能从姊株获益,属于单向获益;妹株株高、根系生物量显著地比姊株增长快;姊株1级匍匐茎总长、总节数、生物量及分蘖节生物量显著比妹株增长快;妹株能显著从姊株最长1级匍匐茎和分蘖节生物量获益。更多还原

【Abstract】 Results of the study on available nutrients to linked two-ramets of buffalograss (Buchlo dactyloides) indicate that the first-growing ramets are benefited immensely from the next-growing ramets, but the latter are not repaid by the former which are the unidirectional beneficiary. The root biomass and height of the later-growing ramets apparently rise faster than those of the earlier-growing ramets. Contrarily, the tiller node biomass, 1~ st stolon biomass, 1~ st stolon node number, and 1~ st stolon length of the first-emerging ramets grow quicker than those of the later-growing ramets. However, the next-growing ramets can be benefited from the first-growing ones in the tiller node biomass and the longest 1~ st stolon.更多还原