共 19 条
[2]
DAHL E, 1967, MEDD NOR SKOGFORSOK, V23, P505
[3]
DREWS M., 1966, Arch. Gartenb., V14, P339
[4]
FRIEDRICH G, 1954, ARCH GARTENBAU, V2, P238
[5]
HARDH J. E., 1957, MAATALOUSTIETEELLINEN AIKAKAUSKIRJA, V29, P238
[6]
HESSELMAN H, 1917, MEDDELANDEN FRAN STA, V14, P923
[7]
INGESTAD T, 1970, Physiologia Plantarum, V23, P1127, DOI 10.1111/j.1399-3054.1970.tb08889.x
[9]
INGESTAD T., 1962, MEDD STATENS SKOGSFORSKNINSTITUT, V51, P1
[10]
INGESTAD T, IN PRESS