2024-03-28T20:53:27Z
https://u-ryukyu.repo.nii.ac.jp/oai
oai:u-ryukyu.repo.nii.ac.jp:02015141
2022-10-31T07:08:48Z
1642838163960:1642838308020:1642838308479:1642838311211
1642838403551:1642838412624
節位を異にした蔗茎の節部における維管束の発達
Development of Vascular Bundle at the Node of Sugarcane.
宮里, 清松
Miyazato, Kiyomatsu
open access
沖縄農業研究会
サトウキビ
As it is considered that the development of cuttings taken from different locations of a cane is not only influenced by stored food and the development of primordia, but also by the development of vascular bundle which translocates water and nutrients, the development of vascular bundles in various nodes was studied. The leaf trace bundle which connects to the leaf veins commonly runs into the joint of upper and lower medullary bundles, but there were some which ran into the upper part, i. e., the part where the nodal plexus are distributed. The depth of a leaf trace bundle was different with the size; a large sized one ran deep. The bundle which ran into the cane went round the cortical tissue where it entered, and it occasionally ran round beyond the core of the cane to the opposite part of it. At the node, where an ear leave was attached, the extension depth of the leaf trace bundle was shallow and ran round the cane just beneath the epidermal tissue, and the distribution of medullary bundle was irregulary and very poor in their development (photo. 1, 6, 11). The development of nodal plexus, which develop in the node where a lateral bud have developed and distribute above the leaf trace bundle and the points where upper and lower medullary bundles meet, differ with the developmental stage of the node and completed with its development. In a mature node, they were distributed all over the node and vertical distribution was large. In basal nodes of young cane Which did not bear lateral buds and upper nodes of cane bearing ears, no nodal plexus were seen (photo. 2, 4, 5, 9, 10). Vascular bundles which develop in the lateral bud developed to inner parts as the cane matured. Since in a good one-nodal cutting the development of vascular bundle was good, the goodness of a cutting is not only decided by the stored food but also by the development of vascular bundles which make possible the translocation of nutrients and water to the bud. Therefore, the development of vascular boundles in considered to have close relation with the goodness of cuttings. And it also considered that the development of tissues in a node have to do with the function and life of roots of the cuttings.
論文
沖縄農業研究会
Okinawa Agriculture Research Society
1964-12
jpn
journal article
VoR
http://hdl.handle.net/20.500.12000/0002015141
https://u-ryukyu.repo.nii.ac.jp/records/2015141
1344-1477
AN00083297
沖縄農業
3
2
1
6
https://u-ryukyu.repo.nii.ac.jp/record/2015141/files/91.pdf