Composición química y mineral de Atriplex repanda y Atriplex lentiformis

Vera, Patricia María Ramos

doi:10.7764/rcia.v4i2.585

Cited by 2 publications

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“…Among the few references mentioning P in Atriplex tissues, amounts varying from 0.9 to 1.2 g kg ] 1 (Vera, 1977 ;Squella et al, 1981) are given and are similar to the values actually found. In Atriplex confertifolia (Torr.…”

Section: Phosphorussupporting

confidence: 57%

“…This might be caused by the fact that N is required by Atriplex species for the photosynthesis process (Brownell & Crossland, 1972). In this C 4 regard, Vera (1977) observed that the Na cation prevailed in Atriplex repanda leaves, which might represent 8% of dry matter, while concentrations of K and Ca accounted for 1.7% and 1.6%, respectively. Also, high contents of N a in Atriplex tissues are due to the fact that the plant requires Na as an essential component and to the osmosis regulating action.…”

Section: Sodiummentioning

confidence: 93%

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Mineral Composition of Perennial Vegetation of Shrub Patches in Northeastern Patagonia

Valle¹,

Rosell²

2000

Arid Soil Research and Rehabilitation

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Centro Nacional P atago Â nico Consejo N acional de Investigaciones Cienti cas y Te Â cnicas P uerto M adryn, Chubut, Argentina R. A. ROSELL Laboratorio de Humus Departamento de Agronomõ Â a Universidad N acional del Sur Consejo N acional de Investigaciones Cientõ Â cas y Te Â cnicas Bahõ Â a Blanca, Argentina T his study was conducted to (1) quantify the mineral composition of litter, new leaves, and stems of two plant species (Atriplex lampa and Prosopis alpataco) in shrub patches, occurring with common abundance in the northeastern Patagonian region, and (2) determine the spatial and temporal variabilities of the mineral ele± ments. T here were 240 vegetal samples collected from six di erent sites, all within about 15 km. T he essential nature of 15 mineral elements for litter and plant parts was analyzed. Composition varied signi cantly for P, Ca, M g, Na, K, Cu, Zn, Mo, and B between species ; N between seasons ; and S, Al, Fe, M n, and Cd among sites. Also Na, K, and B showed secondary variations derived from a seasonal e ect, as did P, Ca, Mg, Cu, Zn, and M o, but associated with secondary di erences among sites.

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Section: Phosphorussupporting

confidence: 57%

Section: Sodiummentioning

confidence: 93%