阅读说明：本技术 植物生长调节化合物 (Plant growth regulating compounds ) 是由 A·F·J·C·卢布罗索 A·德梅斯马克 C·斯克里潘蒂 于 2019-03-07 设计创作，主要内容包括：本发明涉及新颖的独脚金内酰胺衍生物,涉及包含这些衍生物的作物增强组合物、植物生长调节剂组合物或种子萌发促进组合物,并且涉及使用这些衍生物控制植物的生长和生理和/或促进种子萌发的方法。(The present invention relates to novel strigolactam derivatives, to crop enhancement compositions, plant growth regulator compositions or seed germination promoting compositions comprising these derivatives, and to methods of using these derivatives for controlling the growth and physiology of plants and/or promoting seed germination.)

1. A compound having the formula (I):

wherein

R¹And R²Each independently is methyl or ethyl; and is

R³Selected from the group consisting of: formyl radical, C₁-C₄Alkylcarbonyl group, C₁-C₄Alkoxycarbonyl group, C₃-C₈Cycloalkyl carbonyl group, C₁-C₄Haloalkylcarbonyl, aryl, heteroaryl, and acetonitrile;

or a salt thereof.

2. The compound of claim 1, wherein R¹And R²Are both methyl groups.

3. A compound according to claim 1 or 2, wherein R³Selected from the group consisting of: c₁-C₄Alkyl radical, C₃-C₈Cycloalkyl carbonyl group, C₁-C₄Haloalkylcarbonyl, phenyl, 2-thiazolyl, and acetonitrile.

4. A compound according to claim 3, wherein R³Selected from the group consisting of: formyl, acetyl, phenyl, 2-thiazolyl, and acetonitrile.

5. The compound of claim 4, wherein R³Is an acetyl group.

6. The compound of claim 4, wherein R³Is acetonitrile.

7. The compound of claim 1, having the structure of formula (IA-1):

8. a crop yield increasing composition, abiotic stress management composition, plant growth regulator composition or seed germination promoting composition comprising a compound according to any one of the preceding claims, and optionally an agriculturally acceptable formulation adjuvant.

9. The composition of claim 8, comprising an additional active ingredient.

10. A method for modulating plant growth, increasing plant yield, improving plant tolerance to abiotic stress factors, accelerating leaf senescence in a plant, wherein the method comprises applying to the plant, plant part, plant propagation material, or plant growing locus, a compound according to any one of claims 1 to 7, or a composition according to claim 8 or 9.

11. A method for promoting seed germination, the method comprising applying to the seed, or a locus containing a seed, a seed germination promoting amount of a compound according to any one of claims 1 to 7, or a composition according to claim 8 or 9.

12. A method for controlling weeds, said method comprising applying to a locus containing weed seeds a seed germination promoting amount of a compound according to any one of claims 1 to 7 or a composition according to claim 8 or 9, allowing the seeds to germinate, and then applying to the locus a post-emergence herbicide.

13. Use of a compound of formula (I) according to any one of claims 1 to 7 as a crop enhancer/yield enhancer, plant growth regulator or seed germination promoter.

14. A method of treating plant propagation material, the method comprising applying to the plant propagation material a compound according to any one of claims 1 to 7 or a composition according to claim 8 or 9 in an amount effective to increase yield, promote germination or regulate plant growth.

15. A plant propagation material treated with a compound of formula (I) according to any one of claims 1 to 7, or a composition according to claim 8 or 9.