Plant protecting and regulating compositions – Plant growth regulating compositions – Plural active ingredients
Reexamination Certificate
2001-04-10
2002-09-03
Clardy, S. Mark (Department: 1616)
Plant protecting and regulating compositions
Plant growth regulating compositions
Plural active ingredients
C504S147000
Reexamination Certificate
active
06444614
ABSTRACT:
BACKGROUND OF THE DISCLOSURE
1. Field of the Invention
The present invention is directed towards stimulating or regulating the growth of a living, growing plant precursor (germinating seed) or plant (from the ‘seedling stage’ to the ‘late maturity’ stage) in the absence of (a) fertilizer and (b) Periodic Table Group IIa and greater Group metal cations and chelated metals.
The present invention is also directed to novel compositions of matter comprising (i) N-(1,2-dicarboxyethyl)aspartic acid (hereinafter also referred to as ‘imino-disuccinic acid’ or ‘IDS’), it's ammonium salts, alkali metal salts, ammonium-alkali metal salts and optical isomers thereof in admixture with (ii) N,N′-1,2-ethanediylbis-aspartic acid (hereinafter also referred to as ‘ethylenediamine-disuccinic acid’ or ‘EDDS’), it's ammonium salts, alkali metal salts, ammonium-alkali metal salts and optical isomers thereof. Such mixture also may comprise 1H-indole-3-butanoic acid (hereinafter also referred to as ‘indolebutyric acid’ or ‘IBA’) as well as additional adjuvants.
2. Description of the Prior Art
The prior art recognizes the use of biodegradable metal chelates of such polyamino succinic acids as EDDS (such as iron, copper, zinc and manganese chelates) in plant nutrition, for the express purpose of supplying such metals in plant nutrition. Specifically, U.S. Pat. No. 5,733,858 issued on Mar. 31, 1998 and having an effective filing date of Aug. 30, 1995 (Wilson et al I) and the continuation-in-part thereof, U.S. Pat. No. 5,846,925 issued on Dec. 8, 1998 (Wilson et al II) state:
“The invention includes the use of iron complexes of a polyaminodisuccinic acid and a polyaminomonosuccinic acid in abatement of hydrogen sulfide and other gases and as a source of iron in plant nutrition. Similarly other complexes such as the copper, zinc and manganese complexes supply those trace metals in plant nutrition. The ferrous complexes are also useful in nitrogen oxide abatement.” (Col. 5, lines 57-64 of Wilson et al I and Col. 5, lines 60-67 of Wilson et al II).
The prior art also recognizes the advantage of using Periodic Table Group IIa (and greater Groups) metal-complexed IDS for use as ‘trace nutrient fertilizer(s)’. Specifically, U.S. Pat. No. 6,107,518 issued on Aug. 22, 2000 (effective date, Apr. 4, 1997) (Groth et al) states:
“The invention relates to a process for the preparation of iminodisuccinic acid alkali metal salts . . . The resulting products can be employed as complexing agents for alkaline earth metal and heavy metal ions in the fields of . . . agriculture . . . In these fields, use as a nutrient fertilizer . . . is to be emphasized in particular . . .” (Col. 1, lines 5-15 of Groth et al).
The use of amino acids with good biodegradability (particularly in conjunction with fertilizers such as ‘N-P-K’ fertilizer) having one of the structures as set forth in
FIGS. 24 and 25
, described herein, infra, in the ‘BRIEF DESCRIPTION OF THE DRAWINGS’ section, including EDDS as well as its alkaline earth metal salts or salts of transition metals, as a ‘plant growth factor for agriculture and horticulture’ is described in Japanese Published Kokai No. 11-29415 (A) published on Feb. 2, 1999 (Takahashi et al) and abstracted in Chemical Abstracts, Volume 130:120927g.
Specifically, claim 2 of the Takahashi et al Kokai reads as follows:
“2. Plant growth factor for agriculture and horticulture characterized by containing at least one of the following compounds . . . their alkaline earth metal salts or salts of transition metals . . .’ (structure set forth as
FIG. 24
, infra) . . .’ where symbols are defined as follows: W
1
indicates an alkylene group containing 1-6 carbon atoms possibly substituted by hydroxide groups, R
1
and R
2
independently indicate alkyl groups with 1-4 carbon atoms under the provision that the group can contain a hydrogen atom, alkyl group containing 1-6 carbon atoms, hydroxyl group or carboxyl group: . . . ’ (Structure set forth as
FIG. 25
, infra)’ . . . Where symbols are defined as follows: R
3
indicates an alkyl group containing 1-4 carbon atoms possibly substituted by a hydrogen atom, alkyl group with 1-6 carbon atoms, hydroxyl group or carboxyl group, and R
4
and R
5
groups independently indicate alkyl groups containing 1-4 carbon atoms possibly substituted by a hydrogen atom, hydroxyl group or carbonyl group, under the provision that R
4
and R
5
cannot simultaneously be hydrogen atoms.”
Furthermore, in paraphrasing Application Example 1 of Takahashi et al, Chem. Abstracts 130:120927(1999) states:
“ . . . Lettuce seeds were cultured in a fertilizer soln. contg. 100 ppm S,S-ethylenediamine-N,N-disuccinic acid (the stability const. 8.63, the biodegradability 98%) to show good plant growth.”
The prior art also recognizes that indolebutyric acid (IBA), suitably diluted, is useful for promoting and accelerating root formation of plant clippings (Monograph #4849, page 720, ‘The Merck Index’, 10
th
edition, 1981).
The use of IDS and/or EDDS or ammonium salts, alkali metal salts, ammonium-alkali metal salts or organic amine salts, it's optical isomers thereof in the absence of any (a) fertilizer (e.g., ‘N-P-K’) and (b) Periodic Table Group IIa (or ‘greater’ Group) cations or chelated metals of our invention is neither expressly nor implicitly disclosed by the aforementioned prior art; and such use, as described herein, is unobvious, unexpected and advantageous.
Furthermore the novel compositions of matter of our invention comprising IDS and EDDS as well as salts thereof and optical isomers thereof (taken alone, or further together with indolebutyric acid and/or other ‘adjuvants’) are neither explicitly nor implicitly disclosed in the prior art, and the properties thereof, as living plant precursor and living plant growth stimulants or regulators are unexpected, unobvious and advantageous.
Thus, a need exists in the art for the use of a fertilizer-free and Periodic Table Group IIa and greater Group metal cation and chelated metal-free IDS and/or EDDS (and/or ammonium salts, alkali metal salts, ammonium-alkali metal salts and/or optical isomers thereof) composition for stimulating or regulating the growth of plant precursors (germinating seeds) or plants (from the ‘seedling stage’ to the ‘late maturity’ stage). ‘Periodic Table Group IIa and greater Group’ metals include, but are not limited to alkaline earth metals, (e.g., calcium, magnesium, barium and strontium), manganese (Group VIIb), zinc (Group IIb), Copper (Group Ib) and iron (Group VIIIb). The term ‘ammonium’ is herein intended to include the NH
4
+
cation as well as the HO—CH
2
—CH
2
—NH
3
+
(also indicated herein as ‘2-hydroxyethylammonium’) cation.
SUMMARY OF THE INVENTION
Accordingly, an object of the invention is to provide for the use of a fertilizer-free and Periodic Table Group IIa and greater Group metal cation-free and chelated metal-free IDS and/or EDDS (and/or ammonium salts, alkali metal salts, ammonium-alkali metal salts and/or optical isomers thereof) composition for stimulating or regulating the growth of plant precursors (germinating seeds) or plants (from the ‘seedling stage’ to the ‘late maturity’ stage).
Another object of the invention is to provide novel compositions of matter, particularly and unexpectedly and advantageously useful for stimulating or regulating the growth of plant precursors (germinating seeds) and plants (from the ‘seedling stage’ to the ‘late maturity’ stage) comprising (a) IDS, ammonium salts, alkali metal salts and/or optical isomers thereof and (b) EDDS, ammonium salts, alkali metal salts, ammonium-alkali metal salts and/or optical isomers thereof, taken alone or further together with indolebutyric acid (‘IBA’) and/or other adjuvants.
These and other objects are achieved by my invention as set forth hereinbelow.
My invention thus provides a process for stimulating or regulating the growth of a living, growing plant precursor (germinating seed) or plant having a degree of maturity of from about >0% (seedling stage) up to about <100% (late maturity s
Clardy S. Mark
Liberman Arthur L.
LidoChem Inc.
Michaelson Peter L.
Michaelson & Wallace
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