Plant Characteristics in Relation to Lodging in Self-Pollinating Buckwheat
Lodging was investigated using six lines of self-pollinating buckwheat. Each line had a different plant type, namely erect type, semi-dwarf type and chrysanthemum type. Plant characteristics were measured just before the occurrence of lodging. The percentage of lodging was the highest in erect type (76%), but there was no lodged plant in chrysanthemum type. The most of lodging was only bending of the plant, and the lodging caused by breaking of the stem was below 10% of total area. There is no relation between lodging percentage and plant length or top fresh weight, but the diameter of cotyledon internode revealed a significant difference between the lodged and unlodged lines. The median point percentage and diameter and thickness of the lower part stem probably have any relation with lodging. The thickness of internode in the lower part of the stem had a negative correlation to the lodging caused by breaking of the stem. These results suggested that it is important to breed the cultivars with lower portion of the median point, short length of cotyledon internode, thick stem in lower part for improving lodging resistance.
Cotyledon node Lodging Median point Self-pollinating buckwheat Stem thickness
Hisayoshi Hayashi Daisuke Toiguchi Yingjie Wang Clayton Campbell
Graduate School of Life and Environmental Sciences, University of Tsukuba, Tennodai 1-1-1, Tsukuba, College of Agrobiological Resources, University of Tsukuba, Tennodai 1-1-1, Tsukuba, 305-8572, Japan Kade Research Ltd., Morden Manitoba, R6M1H19, Canada
国际会议
The 10th International Symposium on Buckwheat(第十届国际荞麦会议)
陕西杨凌
英文
259-262
2007-08-14（万方平台首次上网日期，不代表论文的发表时间）