Íslenskar landbúnaðarrannsóknir - 01.09.1977, Qupperneq 49

Íslenskar landbúnaðarrannsóknir - 01.09.1977, Qupperneq 49
THE INOCULATION OF WHITE CLOVER 47 ÍSLENZKT YFIRLIT Smitun hvítsmára (Trifolium repens L.) með Niturnámsbakteríum {Rhizobium trifolii) á Islandi. Guðni Harðarson and D. Gareth Jones Department of Agrigultural Botany, University College of Wales, Aberystwyth Dyfed, Wales, U.K. Virkni niturnámsbaktería (Rhizobium trifolií) í samlífi við hvítsmára (Trifolium repens L.) var athuguð við mismunandi hitastig. Bakt- eríustofnarnir frá Islandi og Svíþjóð reynd- ust nema meira nitur (köfnunarefni) úr lofti REFERENCES Ek-Jander, J. and Eáhraeus, G., 1971: Adaptation of Rhizobium to subaraic environment in Scandinavia. Plant and Soil, Special Volume 1971: 129—137. Jensen, H. L., 1942: Nitrogen fixation in legumi- nous plants. II. Is symbiotic nitrogen fixation influenced by Azotobacter? Proceedings of the Linnean Society of New South Wales, '67: 205 —212. Jones, D. G., 1966: The contribution of white clover to a mixed upland sward. II. Factors af- fecting the density and effectiveness of Rhizo- bium trifolii. Plant and Soil, 24: 250—260. Jones, D. G., Druce, R. G. and Williams, G., 1967: Comparative trials of seed pelleting, inoculation and the use of high lime dressing in upland reclamation. Journal of applied Bac- teriology, 30: 511—517. Jones, D. G. and Harðarson, Guðni: Variation in the preference fo.r isolates of Rhizobium trifolii by homogenous and heterogenous populations of two white clover varieties. (Unpublished.) Jones, D. G. and Thomas, S. B., 1966: The use of inoculation and pelleting in the establish- ment of white clover under mountain condi- tions. Journal of applied Bacteriology, 29: 430 —437. við lágt hitastig en stofnar frá Bretlandi. Mikilvægt er að taka tillit til þessarar að- lögunar þegar smit er valið fyrir belgjurtir. Einnig er skýrt frá jarðræktartilraun á Korpu, þar sem smitun hvítsmára með nitur- námsbakteríum var reynd. Notaðir voru bakteríustofnar er best reyndust í fyrrnefndri athugun. Fáar Rhizobium bakteríur voru fyrir í jarðveginum og mikilvægi smitunar er auð- séð af niðurstöðum. Notkun kalks reyndist hvorki hafa marktæk áhrif á uppskeru né fjölda rótarhnýða. Notaðir voru hvítsmára- stofnarnir Aberystwyth S 184 og Pajbjerg smalbladet. Þeir reyndust ekki sem skyldi og lifðu ekki af fyrsta veturinn. Athugun þessi gefur ærið tilefni til að rannsaka fleiri er- lenda hvítsmárastofna jafnframt fræsöfnun og kynbótum á íslenzka hvítsmárastofninum. Jónsson, Ólafur, 1939: Belgjurtir, Áburðarsala ríkisins, Reykjavík, 118. Lie, T. A., 1974: Environmental effects on nodu- lation and symbiotic nitrogen fixation. ln the Biology of Nitrogen Fixation. Ed. Quispel, A. North Holland Publishing Company, Amster- dam and Oxford: 555—582. Norris, D. O., 1963: A porcelain-bead method for storing Rhizobium. Empire Journal of Experi- mental Agriculture, 31: 255—258. Pate, J. S., 1961: Temperature characteristics of bacterial variation in legume symbiosis. Nature, 192: 637—639. Steindórsson, Steindór, 1962: On the age and immigration of the Icelandic flora. Vísindafélag Islendinga, 35. Vincent, J. M., 1965: Environmental factors in the fixation of nitrogen by the Legume. In Soil Nitrogen. Eds. Bartholomew, W. V. and Clark, F. E., American Society of Agronomy, Madison. 384—435. Vincent, J. M., 1970: A manual for the practical study of root-nodule bacteria. Blackwell Scien- tific Publications, Oxford and Edinburgh. 164.
Qupperneq 1
Qupperneq 2
Qupperneq 3
Qupperneq 4
Qupperneq 5
Qupperneq 6
Qupperneq 7
Qupperneq 8
Qupperneq 9
Qupperneq 10
Qupperneq 11
Qupperneq 12
Qupperneq 13
Qupperneq 14
Qupperneq 15
Qupperneq 16
Qupperneq 17
Qupperneq 18
Qupperneq 19
Qupperneq 20
Qupperneq 21
Qupperneq 22
Qupperneq 23
Qupperneq 24
Qupperneq 25
Qupperneq 26
Qupperneq 27
Qupperneq 28
Qupperneq 29
Qupperneq 30
Qupperneq 31
Qupperneq 32
Qupperneq 33
Qupperneq 34
Qupperneq 35
Qupperneq 36
Qupperneq 37
Qupperneq 38
Qupperneq 39
Qupperneq 40
Qupperneq 41
Qupperneq 42
Qupperneq 43
Qupperneq 44
Qupperneq 45
Qupperneq 46
Qupperneq 47
Qupperneq 48
Qupperneq 49
Qupperneq 50
Qupperneq 51
Qupperneq 52
Qupperneq 53
Qupperneq 54
Qupperneq 55
Qupperneq 56
Qupperneq 57
Qupperneq 58
Qupperneq 59
Qupperneq 60
Qupperneq 61
Qupperneq 62
Qupperneq 63
Qupperneq 64
Qupperneq 65
Qupperneq 66
Qupperneq 67
Qupperneq 68
Qupperneq 69
Qupperneq 70
Qupperneq 71
Qupperneq 72
Qupperneq 73
Qupperneq 74
Qupperneq 75
Qupperneq 76
Qupperneq 77
Qupperneq 78
Qupperneq 79
Qupperneq 80
Qupperneq 81
Qupperneq 82
Qupperneq 83
Qupperneq 84
Qupperneq 85
Qupperneq 86
Qupperneq 87
Qupperneq 88
Qupperneq 89
Qupperneq 90
Qupperneq 91
Qupperneq 92
Qupperneq 93
Qupperneq 94
Qupperneq 95
Qupperneq 96
Qupperneq 97
Qupperneq 98
Qupperneq 99
Qupperneq 100
Qupperneq 101
Qupperneq 102
Qupperneq 103
Qupperneq 104
Qupperneq 105
Qupperneq 106
Qupperneq 107
Qupperneq 108
Qupperneq 109
Qupperneq 110
Qupperneq 111
Qupperneq 112

x

Íslenskar landbúnaðarrannsóknir

Direct Links

Hvis du vil linke til denne avis/magasin, skal du bruge disse links:

Link til denne avis/magasin: Íslenskar landbúnaðarrannsóknir
https://timarit.is/publication/1499

Link til dette eksemplar:

Link til denne side:

Link til denne artikel:

Venligst ikke link direkte til billeder eller PDfs på Timarit.is, da sådanne webadresser kan ændres uden advarsel. Brug venligst de angivne webadresser for at linke til sitet.