水稲の節間伸長開始期に関する研究 : 茎の形態形成上の発育段階
スポンサーリンク
概要
- 論文の詳細を見る
The present paper is a report on the formation of first internode and beginning of internodal extention in rice shoots, and it also describes the varietal differences and ecological responses to the varying times of cultivation. Definitive nodes and internodes are here defined as those that are clearly delimited in longitudinal median sections of living shoots as observed using dissecting microscope. By these easy methods, the first discernible internordal lacunae are considered here as an index of internodal extension. From the results of this observation on the morphogenetic process, the author proposed that the stem development may be divided into the following three phases; viz. previous phase of internodal lacunae formation named "Primitive phase", process of subtle elongation of basel telescoped lacunae (Crown-internodes) named as "Primary phase", and the following phase showing the rapid and long extension of upper internodes (Culm-internodes) named as "Secondary phase". It is observed that the stage of first internodal formation in the Primary phase may correspond to time far previous to differentiation of panicle primordium. The plant-age as measured by the number of leaves is about 5.5. And in most plants, first extended internode is that between 5th and 6th node, however, the locus of this node keeps lower in short-term varieties and in plants planted late, but upper in long-term varieties and in early planted plants. The number of extended internodes in Primary phase may be found 5 or 6 in most plants, and are less in short term varieties but more in long-term varieties. However, ecological variations due to the varying of planting times are a little. These internodes are 1-2 mm in length at the beginning of formation, and are extended just about 3 mm in full length. And the internodes which are extended over 3 mm in length may be regarded as the internodes of Secondary phase. At the stage of onset in Secondary phase, the panicle is 0.4〜1.0 mm in length, and the stage ranges from the branch differentiation to early time of spikelet formation. And the plantage is 11.0〜14.0 leaves, leaf number index is 83 to 87, and the Secondary extension of internode begins from the node of 10〜13th leaf. Each above-mentioned value is revealing the range of varietal differences. It seems that the "crown" of Grasses may be divided into two types with or without of "crown-internode"-Rice-type crown (with) and Wheat-type crown (without). From the results of this studies, the author stated that the simple method using dissecting microscope may be useful for identifying the internodal formation and extension not only at the Secondary phase but also at the Primary phase, without any trouble as by paraffin method.
- 日本作物学会の論文
- 1968-12-10
著者
関連論文
- レンゲの自然交雑率に関する実験
- [2]レンゲの遺伝研究第2報開花期の遺伝 : (1)花芽分化および開花に対する積算温度の意義 : 日本育種学会第14回講演会講演要旨
- [1]レンゲの遺伝研究第1報花芭の遺伝 : R,WRおよびW型の関係 : 日本育種学会第14回講演会講演要旨
- 水稲における耐蔭性の品種間差異 (第111回講演会)
- [11]イネ頸イモチ耐病牲の検定方法に関する実験 : 日本育種学会第13回講演会講演要旨 : 一般講演要旨
- 畦畔大豆に関する研究 : 第1報 畑と畦畔における微細気象と大豆生育相の違い並びに畦畔高と生育収量との関係
- 大豆における種子の大小と生産力との関係
- 34.大豆品種における発生生態とその後作用 : 特殊環境が種実の発育並びに次代以降の生態に及ぼす後作用的影響(初報) : 日本育種学会第五回講演要旨
- 大豆品種における発生生態とその後作用に関する研究 : 第2報 長年月特殊環境で採種がつづけられた大豆種子の後作用的影響
- レンゲ種子中菌核の比重選効果に関する知見と篩別の一試験 (第111回講演会)
- 北陸地方環境条件の特異性と飼料作物栽培の問題点
- 荳科飼料作物硬実の鑑別について : I. レンゲ
- 水稲の節間伸長開始期に関する研究 : 茎の形態形成上の発育段階
- 37.石川県下における水田作飼料生産の好事例(日本草地研究会第5回研究発表会講演要旨)
- 水田(専門別に見た歩みと展望,創立5周年記念特集号)
- 28.耐雪飼料用レンゲ1北陸号について(日本草地研究会第4回研究発表会講演要旨)
- 〔72〕耐雪飼料用"レンゲ北陸1号"について : 日本育種学会第17回講演要旨 : 一般講演
- 7.レンゲ名称の歴史(日本草地研究会第3回研究発表会講演要旨)
- レンゲ名称の歴史 (第120回 講演会)
- レンゲ品種の耐雪・耐寒性に関する新知見 : 特にその強弱と地理的分布に就いて (予報) (第100回講演会)