Intraspecific competition in grassland species I. Dichanthium annulatum (forsk) stapf

Kothari, Aruna; Pandey, H. N.; Misra, K. C.

doi:10.1016/0304-3746(74)90030-4

Cited by 2 publications

(1 citation statement)

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“…Studies of the aboveground to belowground ratio or a per ennial grass [Dichanthium annulatum (Forsk) Stapf] have sug gested that the effect of competition was more severe on the aboveground parts and that this relates to a competition effect which accelerates the transfer of organic matter from the source (shoot) to the sink (rhizome) (9). From the RGR's presented above, the aboveground parts were affected more than the belowground part by intraspecific competition.…”

Section: Resultsmentioning

confidence: 99%

The Effect of Intraspecific Competition on the Growth and Development of Johnsongrass under Greenhouse Conditions

Williams¹,

Ingber²

1977

Weed sci.

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Various levels of intraspecific competition influenced johnsongrass [Sorghum halepense(L.) Pers.] reproduction. Increases in density, from one to eight plants per 20-cm pot, delayed for formation of rhizomes and panicles and reduced the final dry weight accumulation in these reproductive structures under greenhouse conditions. Tillering was delayed by medium density (4 plants per pot) and inhibited by the highest density (8 plants per pot). At all densities, the dry weight accumulation in reproductive structures was associated with a decrease in dry weight of the shoot material. Most of the reproductive effort was in the formation of rhizomes rather than panicles. Crowding of johnsongrass plants delayed the formation of the reproductive structures and reduced their final dry weight.

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Section: Resultsmentioning

confidence: 99%