ギシギシの地下部切断片の再生力について

概要

論文の詳細を見る
Regenerative capacity of the root segments of Rumex japonicus Houtt., which varies with their length and position on the tap roots, was determined during three growing seasons. The tap roots were collected from populations in waste habitats and were cut into segments 1, 2, 4 and 7cm long, which were then buried in the soil at 3cm depth. One month after emergence they were dug up and several growth parameters were recorded. The sprouting rate of the segments including upper 4cm of the tap roots was high regardless of the length, although the longer segments tended to have a higher capacity of sprouting. On the other hand little sprouting was observed in those excluding upper 4 cm. The sprouting rate and early growth of the segments varied with the growing seasons. In the flowering time they showed a higher sprouting rate and they were longer than in the other two growing seasons i. e. the fruiting time and rosette period. Leaf number of the sprouts did not vary significantly with the three growing seasons. The original weight of the segments was highly correlated with the plant length in the flowering time and with the leaf number in the rosette period.
日本雑草学会の論文
1984-05-25