トマトの乱形果発生におよぼす育苗期根温の影響

育苗期根部温度对番茄不规则果实发育的影响

• 批准号: 06660025
• 负责人: 藤重 宣昭
• 金额: $ 0.77万
• 依托单位: Utsunomiya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 无数据
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-06660025/
• 关键词: トマト; 子室; 根温; 溢液; ジベレリン; 硝酸イオン; 燐酸イオン

1.トマトの子室増加に25℃高根温が影響する感受期を明らかにするために、花芽発育ステージが未分化,分化初期,がく形成期,雄ずい形成期,雌ずい形成期に分け,それぞれのステージを組み合わせて根温処理の開始と終了を行った。花芽分化する一節前の発育ステージからがく片形成期以上の間を高根温にすると、子室が有意に増加した。2.子室増加の大きい根温感受期に13,25℃根温で処理した後,胚軸を切断して根系からの溢液を24時間採取し,根が産出すると考えられるジベレリン様活性物質の量を測定した。溢液中には7種以上のジベレリン様活性が存在した。溢液中のジベレリン様活性は25℃根温処理した区が13℃根温で処理したものより5倍以上高かった。溢液量は13℃が25℃より多かったので、植物体当たりで示したジベレリン様活性は両温度間に差がなかった。3.子室数増加の大きい根温感受期に13,25℃根温で処理し,水耕培養液からの窒素(消散イオン)および燐酸イオンのシュートの移行量をイオンクロマトグラフィーで測定した。溢液中の硝酸イオン濃度は根温間に大差はなかった。燐酸イオン濃度は13℃根温で高く、25℃根温の3倍強であった。溢液量は25℃根温が13℃根温より11%高く、その結果植物体当たりの硝酸イオン量は両根温でほぼ同じであり、燐酸イオンは13℃根温が25℃根温のそれの2.8倍であった。4.高根温での根の活性、特にジベレリン産出能の高い活性が子室増加と深く関与している可能性が示唆された。

1. During the period of high root temperature at 25 ℃, there was no differentiation in the early stage of differentiation, the early stage of differentiation, the stage of male embryo formation, the stage of female ovary formation, the stage of female development, the beginning of the process of root temperature induction, the beginning of differentiation, the initial stage of differentiation, the early stage of differentiation, the stage of male and female formation. Before the flower bud differentiation, the floral buds were cultivated before the formation of floral buds, and the ovaries were intentionally added. two。 In the chamber, after the root temperature sensing period was 13. 25 ℃, the embryo was cut off and the root discharge was collected within 24 hours, and the active substances were measured. There is a difference in the activity of more than 7 kinds of liquids in the overflow. The activity in the overflow was 25 ℃, the root temperature was 13 ℃, the root temperature was 13 ℃, and the temperature was 5 times higher. The amount of overflow is 13 ℃ and 25 ℃. The plant body should show the temperature difference and activity. 3. The number of loculi was increased, and the root temperature was measured in the feeling period of root temperature of 137.25 ℃. The solution of hydroponic culture was incubated with asphyxiant (dissipative temperature), and the migration volume was measured. There is a big difference between the root temperature and the temperature of nitric acid in the overflow. The root temperature of 13 ℃ was higher than that of 25 ℃ and 3 times higher than that of 25 ℃. The amount of discharge was 25 ℃, 13 ℃, 13 ℃, 11%, 11%, 25 ℃, 13 ℃, 13 ℃, 13 ℃, 25 ℃, 2.8 times, respectively. 4. High root temperature, high root activity, high root activity, high root activity and high activity.