Lactone derivative, and plant growth regulator and rooting agent each containing the same as active ingredient

Abstract

A lactone derivative represented by the following general formula (I), which has excellent rooting activity; and a plant growth regulator containing the derivative as an active ingredient. (I) [In the general formula (I), R1 and R2 each is hydrogen, halogeno, C1-6 alkyl, or C1-6 alkoxy; A is methylene, vinylene, imino, oxygen, or sulfur; and n is an integer of 1 to 4; provided that when A is imino, then R1 and R2 each is not hydrogen, and when A is oxygen, then both are hydrogen.]

Description

technical field

[0001] The present invention relates to a lactone derivative with a specific structure, and an agent related to plant growth using the derivative as an active ingredient. Background technique

[0002] Growth hormones such as indole butyric acid (IBA) and naphthalene acetic acid (NAA) have been used as rooting agents on cutting buds and roots of cutting seedlings. But at the same time, sweet potatoes, walnuts, birch plants (Carpinus japonica, Alnus firma), beech plants (chestnut, oak, etc.), elm plants (hackberry, etc.), Magnolia quinquepete plants (Japanese magnolia, Liriodendron, Japanese shrubs, etc.), pine plants (fir, spruce, larch, Japanese black pine, etc.), Oleaceae plants, etc., that is, plants that are difficult to root with woody plants. For timber used as building materials, the current status quo is that only tree species that are likely to take root are used for afforestation. So the development of new hair-rooting agents will enable the develo...

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