PERSISTENCE ASSESSMENT OF RED CLOVER (Trifolium pratense L.) IN TÂRGOVISTE PLAIN

D. DUNEA

Abstract


Since the most important deficiency of forage stands is the inability to maintain adequate legume participation in mixture, it is the purpose of this paper to examine persistence in red clover in Târgoviste Plain eco-climatic conditions, together with the factors that affect it. Six red clover cultivars (Napoca-Tetra, Dacia Tetra, Vesna – tetraploids; Flora, Roxana, Start – diploids) and one white clover diploid cultivar (Karina) were used in pure culture and in mixture (50:50) with hybrid ryegrass (Zefir – tetraploid) in a randomized block design with three replicates. Ground cover assessment in early spring was a suggestive indicator of the stand persistence to define the stability and sustainability boundaries of a reliable intensive system. In the beginning of the third year of cropping, ground cover was 54.33% for tetraploid cultivars (CV = 43.25%), and 67% for diploid cultivars (CV = 6.83%) in pure stands. Same ground cover average of 27% was established both for tetraploid cultivars (CV = 36.47%), and for diploid cultivars (CV = 16.97%) in mixtures with hybrid ryegrass.


Keywords


red clover; white clover; hybrid ryegrass; ground cover; persistence

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LUCRARI STIINTIFICE ZOOTEHNIE SI BIOTEHNOLOGII (SCIENTIFIC PAPERS ANIMAL SCIENCE AND BIOTECHNOLOGIES)

ISSN print 1841 - 9364
ISSN online 2344 - 4576
ISSN-L  1841 - 9364
(former ISSN 1221-5287, E-ISSN 1841-9364)

PUBLISHER: AGROPRINT Timisoara, Romania
PAPER ACCESS: Full text articles available for free
FREQUENCY: Semiannual
PUBLICATION LANGUAGE: English
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Banat´s University of Agricultural Sciences and Veterinary Medicine "King Michael I of Romania" from Timisoara
Bioengineering Faculty of Animal Resources
300645, Timişoara, Calea Aradului 119, Romania

E-mail: spasb [at] animalsci-tm.ro
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