Publikationsdatum:
1981-09-01
Beschreibung:
Fertilized and unfertilized seedlings of red alder (Alnusrubra Bong.) were grown in pots containing coarse sand, loam, or loam and sand (1:1, w/w) and kept in a growth chamber. Height growth did not differ between provenances but, like dry weight accumulation, it increased with fertilization and was lower in sand than in loam and the mixture. The root/shoot dry weight ratio of fertilized seedlings was lower than that of unfertilized seedlings and was greater in sand than in the other media. Differences in dry weight and root/shoot dry weight ratio were observed between provenances, but these could not be related to differences in geographic location of the provenances examined.Nodulation was affected little by variations in the rooting environment. The physical nature of roots produced by seedlings varied with the type of growth medium and with fertilization. These differences, and other effects brought about by the type of growth medium and by fertilization, were associated mainly with differences in aeration and, in the absence of fertilization, with the nutrient status of the different growth media.
Print ISSN:
0045-5067
Digitale ISSN:
1208-6037
Thema:
Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
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