Relations between the climbing growth and seed production of Amphicarpaea edgeworthii Benth
1999
Arase, T. (Kyoto Univ. (Japan). Coll. of Agriculture) | Inoue, N. | Amano, T.
The relationships between the climbing growth and the seed production in yabumame (Amphicarpaea edgeworthii Benth.) were analyzed based on the phytomer concept. An intensively positive correlation was found between the number of subterranean cleistogamous flowers and phytomers. The plasticity of branching construction (H) was influenced by the number of phytomers, whereas the entropical plant type index (H') and the plasticity of phytomer elongation (PE) were not affected. The H' of secondary branches significantly correlated positively to the number of aerial mower pods. The PE of primary branches close to the ground significantly correlated negatively to mowers per phytomer. The numbers of aerial and subterranean phytomers were under such an allometric relationship that the number of aerial phytomers had a significant correlation with the number of penetrated subterranean phytomers (PS), a lower correlation with the number of cotyledonary subterranean phytomers (CS), and the most intense correlation with the total (PS+CS). So CS was presumed to compensate subterranean growth. The PE of primary branches close to the ground correlated negatively to the aerial-phytomer penetration percentage into soil, revealing the trade-off relationship between the emigration by climbing stem and the settlement by penetration into soil. The relationship between PS and CS and variations in H' and PE is appreciated as clues to improve the plant type and seed allocation to geocarpic seed production around the root for domestication
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