南瓜属の交雑に関する研究 : X.開花前日から開花日までの期間における雌蕋各部の浸透圧

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概要

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• 1. According to the previous report(HAYASE and HIRAIZUMI 1955), the optimum sucrose concentration of artificial ,media for pollen germination and growth varies with the age of pollen. In this report the authors attempted to investigate the relationship between the osmotic pressure of different parts of pistil and the age of pistil. 2. The osmotic pressure of the conducting tissue juice of the styles increased during the period from the morning the day before anthesis to the morning of the flowering day, while the ovary juice decreased during the same period. Therefore the difference of osmotic pressure between the style and ovary became gradually greater during that period (Table 1). 3. The refractometer reading of different parts of pistil varied with the age of pistil. The (refractometer)reading of stigma- and style-juice rise with the maturation, while that of ovary juice declined. This was similiar to the changes of osmotic pressure among the diff6rent parts of pistil during the same period (Table 2).

• 日本育種学会の論文
• 1956-06-30

著者

• 早瀬 廣司

  北海道農業試験場

• 平泉 雄一郎

  北海道大学理学部植物形態学教室

関連論文

• 南瓜属の交雑に関する研究 : X.開花前日から開花日までの期間における雌蕋各部の浸透圧
• 南瓜属の交雑に関する研究 : VI.花粉の成熟に伴う発芽床の最適条件(蔗糖濃度とpH)の変化

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