Atriplex, a prospective forage crop in arid and semi-arid lands

Hassan, A.A.

Rangelands a resource under siege Proceedings of the 2nd International Rangeland Congress, Adelaide, Australia, 13-18 May 1984: 275


ISSN/ISBN: 0190-0528
Accession: 001533611

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Seven Atriplex spp. grown in a controlled environment were investigated for salt tolerance. Seeds germinated at up to 5000 p.p.m. salinity and plants generally tolerated up to 4000 p.p.m., though stem length was significantly decreased. The CP content of seedlings was high but decreased with increasing salinity. The area of lignified tissue was considerably decreased in A. canescens and A. vesicaria with increasing salinity and the amount of cortical parenchyma increased. In a trial in which 8 species were cut at 5 and 8 months, A. nummularia gave the lowest yield (5 t/ha) while A. vesicaria had the highest moisture content and leaf:stem ratio. A. canescens had most CP (14.79-16.56% in leaves and 10.42-13.23% in whole plants) and A. leucoclada least (11.56-13.75% in leaves and 8.12-10% in whole plants). Fibre percentage in leaves was low (35-50%).