. Ecological investigations of the tundra biome in the Prudhoe Bay region, Alaska. Tundra ecology. 101 An alpine entry fronn northern interior Alas- ka (Eagle Summit) appeared the most ecological- ly plastic in being second in shoot weight and flowering culm production in both gardens in 1974. Calamagrostis inexpansa A boreal entry was severely winter injured in the arctic garden in 1974 and was excluded from the analyses at that site. All other entries were analyzed at both sites. The boreal entries of northern reedgrass grew taller than the arctic entries at Palmer; results were mixed at Pru
. Ecological investigations of the tundra biome in the Prudhoe Bay region, Alaska. Tundra ecology. 101 An alpine entry fronn northern interior Alas- ka (Eagle Summit) appeared the most ecological- ly plastic in being second in shoot weight and flowering culm production in both gardens in 1974. Calamagrostis inexpansa A boreal entry was severely winter injured in the arctic garden in 1974 and was excluded from the analyses at that site. All other entries were analyzed at both sites. The boreal entries of northern reedgrass grew taller than the arctic entries at Palmer; results were mixed at Prudhoe (Fig. 13). In most cases leaf growth was longer and wider at Prud- hoe than at Palmer, whereas flowering culms were longer at Palmer. Two of the boreal entries from southern interior Alaska failed to produce flowering culms at Prudhoe. An arctic entry might have been denied flowering through graz- ing activity. Flowering culm production was much more abundant at Palmer than at Prudhoe (Fig. 14). Except for one arctic entry, shoot weights were also greater at the boreal site (Fig. 15). In most cases, the rhizomatous grass spread throughout much of the growing area within the pots at both sites. A nine-ploid entry produced the most top growth at Prudhoe, while a 15-ploid boreal (tidal flat) entry was the highest yielder at Palmer. Arctic and boreal tetraploids were the most prolific flowering culm producers at Palmer in the third season. A northern boreal hexaploid was outstanding in the second year but declined in the third year. All entries decreased in leaf length in the third season at Palmer, as did most of the boreal entries at Prudhoe. Most of the arctic entries increased in leaf length, shoot weight, and flowering culm production at Prudhoe and in number of flowering culms at Palmer in the third season. They showed little improvement in shoot weight at Palmer. The boreal entries de- creased in shoot weight and number of flowering culms at Prudhoe. Most of them increa
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Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity
