Summary
This study relates the yield of two harvests of Bromus inermis Leyss. to tiller type and morphology. Tillers were classified as being nonelongated, elongated and headed. At four times during the growing season, observations were made of tiller density; individual tiller weight; leaf number, area and weight; stem length, area and weight; leaf to stem ratio; specific leaf weight; head area and weight.
Results showed that there was a pattern of tiller control over yield which was different for each of the two harvests. Stem characters contribute more to yield than leaves. Growth, early in the season, had a prominent effect on yield of the first harvest and also influenced the second harvest. Height at the time of each harvest was highly predictive of yield of the respective harvests. A morphological ideotype for bromegrass harvested twice in a season was described.
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Walton, P.D., Murchison, C. A plant ideotype for Bromus inermis Leyss. in Western Canada. Euphytica 28, 801–806 (1979). https://doi.org/10.1007/BF00038952
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DOI: https://doi.org/10.1007/BF00038952