The effect of oxygen tension on the changes in the level of endogenous ABA corresponding the dormancy-breaking in rice seed.

有3种不同种类的荷尔蒙期的种子已被测试用于100%、20%和0%的氧气含量，在荷尔蒙期内10天间隔。“荷尔蒙破裂”被提倡在高氧张力下，但它被抑制在低氧张力下。”两者都是促销的程度和不受限制的程度都是积极的，以获得慷慨的智力。用40 ° C的高浓度处理的土壤种子，在2天内，在含有100%、20%和0%氧的烧瓶中发现了20%和0%氧的条件下。在20%氧的条件下治疗的种子的剂量在较高的氧张力下被打破了最有效的剂量，但在0%氧的条件下，剂量破裂被禁止了。在另一方面，在0%氧的条件下治疗的种子的剂量在较高的氧张力下有效地被破坏，但在0%氧的条件下，没有剂量--在所有情况下都不间断地破坏。当人工治疗像欺骗或伤害一样受到伤害时，被给予了发酵或干燥的种子，ABA在两种治疗的水平上降低了，但在干燥的种子上降低了更多的引人注目。在高温度下，ABA种子的处理水平在100%氧的条件下被低估了，但它在0%氧的条件下被低估了，而且事实上，内源性ABA的含量被低估了0%氧的条件下被低估了，使用气体色谱法进行了更多的定量分析。

The seeds of 3 varieties having the different dormancy periods were tested for germination under 100%, 20%, and 0% oxygen contents with interval of 10 days during the dormancy. The dormancy-breaking was promoted under the high oxygen tension but it was inhibited under the low oxygen tension. Both the degree of the promotion and of the inhibition were positively proportional to the intensities of the dormancy. The soaked seeds treated with high tenperature of 40゜C, for 2 days under the conditions of 20% and 0% oxygen contents were sown in the flasks containing 100%, 20%, and 0% oxygen, respectively. The dormancy of the seeds treated under the condition of 20% oxygen was broken most effectively at the high oxygen tension, but under the condition of 0% oxygen, dormancy-breaking was inhibited exceedingly. On the other hand, the dormancy of seeds treated under the condition of 0% oxygen was broken effectively at the high oxygen tension, but under the condition of 0% oxygen, no dormancy-breaking occurred at all. When artificial treatments such as husking or injury, were given to soaked or dry seeds, the lowering in the level of ABA occurred with both treatments, but the lowering was much more remarkable in soaked seeds than in dry seeds. The level of the ABA in the soaked seeds treated with high temperature was lowered remarkably under the condition of 100% oxygen, but it stayed unchangeably under the condition of 0% oxygen, And the fact that endogenous ABA content stayed unchangeably under the condition of 0% oxygen, was proved more clearly by the quantitative analysis using gas chromatography.