CN101291583A - 提高收获种子质量的方法 - Google Patents
提高收获种子质量的方法 Download PDFInfo
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Abstract
本发明涉及一种提高从产种植物收获的种子的质量的方法。该方法包括用种子处理杀虫剂处理产种植物的播种前的种子和用叶面杀虫剂叶面施用处理所得到的植物;或用种子处理杀虫剂处理产种植物的播种前的种子;或用叶面杀虫剂叶面施用处理产种植物。
Description
本发明涉及涉及一种提高从产种植物收获的种子的质量的方法。该方法包括用种子处理杀虫剂处理产种植物的播种前的种子和用杀虫剂叶面施用处理所得到的植物;或用种子处理杀虫剂处理产种植物的播种前的种子;或用杀虫剂叶面施用处理产种植物。
栽培者以多种方式优化来自其作物的经济效益。首先,他们收获并销售这些作物的果实。然而,此外由产种植物产生的种子也被收获和销售以获取收益。
种传疾病已知是降低种子质量,导致发芽减少,减少定植植株密度(standestablishment)、降低植物活力和降低植物产量的主要原因。由于种传疾病易于在设定种批内的从种子转移到种子,种传疾病引起的蔓延性感染经常导致种批被种子公司废弃。这种废弃导致种子公司利润损失,因为如果用于产生种子的植物的质量低,则许多植物特别是为了种子传代而栽培的杂种和变种会被认为不适宜市场出售。
种传病害的存在还对作物的生长有不利影响。被感染的种子不能发芽或可能产生患病的植物,导致与栽培者的失败作物、不能使用的和废弃的栽培空地和不适宜销售的植物有关的损失。
种传病害起源于多个来源。一些种子天生质量差,易于受感染。其他的由于暴露于真菌病原体而被真菌感染。此外,由于害虫如昆虫的存在,可能使种子患病或变质。
栽培者通过处理种子对抗所述侵袭来对付与种传病害有关的问题。已知用杀真菌剂处理种子以预防真菌病原体的传播,而用杀虫剂处理种子能已知将害虫侵袭造成的损害减至最低。
作物的叶面处理也是本领域已知的。通过用农药处理植物材料,栽培者旨在保护植物的健康直至收获和消除破坏性害虫的存在。
现已意外的发现用种子处理杀虫剂处理产种植物的种子或用叶面杀虫剂处理产种植物,或两者,用种子处理杀虫剂处理产种植物的种子,接着用叶面杀虫剂处理所得到的萌发的产种植物,产生具有较高质量的收获种子。特别是,所得到的种子具有较高的发芽率,较大的植株密度和活力。这种较高质量的收获种子最终产生具有较好质量的种批。因此,种批的价值更高,因废弃、患病种子造成的浪费较少。
发明详述
种子处理杀虫剂包括氟虫腈和新烟碱类杀虫剂。新烟碱类杀虫剂包括但不限于噻虫嗪,啶虫脒,噻虫胺,呋虫胺,吡虫啉,烯啶虫胺和噻虫啉。见,例如the Pesticide Manual,第13版(2004),The British Crop ProtectionCouncil,London。
优选的种子处理杀虫剂包括氟虫腈,噻虫嗪,噻虫胺,和吡虫啉。特别优选的新烟碱类杀虫剂包括噻虫嗪,噻虫胺和氟虫腈。
叶面杀虫剂包括有机磷化合物,硝基苯酚类及衍生物,甲脒类,三嗪衍生物,硝基烯胺衍生物,硝基-和氰基胍衍生物,脲类,苯甲酰基脲类,氨基甲酸酯类,拟除虫菊酯类,氯代烃类和苏云金枯草芽孢杆菌产物。优选的叶面杀虫剂包括但不限于拟除虫菊酯类,三嗪衍生物,和氨基甲酸酯类。特别优选的叶面杀虫剂包括拟除虫菊酯类。拟除虫菊酯类包括但不限于α-氯氰菊酯,高效氟氯氰菊酯,β-氯氰菊酯,氟氯菊酯,生物苄呋菊酯,乙氰菊酯,氟氯氰菊酯,氯氰菊酯,溴氰菊酯,S-氰戊菊酯,甲氰菊酯,氰戊菊酯,氟氰戊菊酯,γ-氯氟氰菊酯,λ-氯氟氰菊酯,氯菊酯,苯醚菊酯(及其异构体),苄呋菊酯,氟胺氰菊酯,七氟菊酯,四溴菊酯,ζ-氯氰菊酯,和ZXI-8901。见,例如the Pesticide Manual,第13版(2004),The British Crop ProtectionCouncil,London。优选的拟除虫菊酯杀虫剂包括七氟菊酯和λ-氯氟氰菊酯。最特别优选的拟除虫菊酯杀虫剂是λ-氯氟氰菊酯。
通过本发明的方法处理的特别有用的种子包括那些易被与种子和植物病害感染的发展和传播有关的昆虫和害虫侵袭的种子。更具体的是,本发明预期包括玉米,包括饲料玉米,甜玉米和爆花用玉米,棉花,马铃薯,谷物(小麦,大麦,黑麦,燕麦,稻),糖用甜菜,棉花,小米品种如高梁,向日葵,菜豆,豌豆,油料作物如油菜,大豆,卷心菜,西红柿,茄类(茄子),胡椒和其他蔬菜和香料以及观赏灌木和花卉和草皮种子。通过本发明处理的种子和植物还包括上述种类的杂交和遗传修饰的形式。
此方法的化合物是以未修饰的形式使用的,或优选与制剂技术中常规使用的助剂一起使用。为此,通常以已知的方式配制成例如乳油、可涂覆糊剂、可直接喷雾或可稀释溶液,稀乳剂,可湿性粉剂,可溶性粉剂,粉剂,颗粒剂以及通过在例如聚合物类物质中包囊或浸渍。如同组合物的性质一样,施药方法如喷雾、弥雾、喷粉、撒布、翻转涂覆或浇注的方法是根据预期目的或本领域普通技术人员可确定的主要的环境来选择的。有利的活性成分混合物的用量一般是0.5-500g,1-100g,或5-50g有效成分/100kg种子。
在特别适宜的方法中,可通过用杀杀虫剂的液体制剂浸渍种子或种子材料或用固体制剂涂覆而将活性成分种子处理杀虫剂特别是噻虫嗪或氟虫腈施用于植物繁殖材料即欲保护的种子、块茎、果实或其他植物材料(例如球茎,包衣)上。
在另一种特别适宜的方法中,活性成分叶面杀虫剂,特别是λ-氯氟氰菊酯、噻虫胺、七氟菊酯或吡虫啉可通过本领域已知的任何方式施用于植物材料。优选使用杀虫剂的叶面施用。术语“叶面施用”指的是将活性成分施用于植物的叶部或地上部分,特别是植物的叶子。施用可通过本领域已知的任何方式进行。特别优选的施用方式是喷雾活性成分。
制剂是以已知的方式制备的,一般是通过将活性成分与填充剂例如溶剂、固体载体和适当时的表面活性化合物(表面活性剂)紧密混合和/或研磨制备的。
适宜的溶剂是:芳族烃类,含8-12个碳原子的级分,通常是二甲苯混合物或取代的萘,邻苯二甲酸酯如邻苯二甲酸二丁酯或二辛酯,脂族烃类如环己烷或链烷烃;醇类和二醇类及其醚和酯如单甲醚,酮类如环己酮,强极性溶剂如N-甲基-2-吡咯烷酮,二甲基亚砜或二甲基甲酰胺,以及植物油或环氧化植物油;或水。
一般用于粉剂和可分散性粉剂的固体载体是方解石,滑石,高岭土,蒙脱土或硅镁土,高度分散的硅酸或吸收性聚合物。适宜的粒化吸附性颗粒载体是浮石,碎砖,海泡石或膨润土,适宜的非吸附性载体一般是方解石或白云石。
根据欲配制的活性成分的性质,适宜的表面活性化合物是具有良好的乳化、分散和润湿性能的非离子、阳离子和/或阴离子的表面活性剂。术语“表面活性剂”还应理解为包括表面活性剂的混合物。
制剂技术中常规使用的表面活性剂可在下列文献中找到:
Mc Cutcheon’s“Detergents and Emulsifiers Annual”,MC PublishingCorp.,Glen Rock,N.J.,1988。
M.and J.Ash,“Encyclopedia of Surfactants”,Vol.I-III,ChemicalPublishing Co.,New York,1980-1981。
例如和非限制性的是,施用促进助剂还有天然或合成的脑磷脂和卵磷脂系列磷脂,如磷脂酰乙醇胺,磷脂酰丝氨酸,磷脂酰甘油和溶血卵磷脂。
该农药组合物通常含有0.1-99%,优选0.1-95%活性成分,99.9-1%,优选99.9-5%固体或液体助剂,和0-25%,优选0.1-25%表面活性剂。
尽管商品或湿或干拌种剂优选被配制成浓缩物,但最终用户通常会视情况使用稀释的制剂处理植物或种子。然而,即可施用的稀释溶液也在本发明的范围内。
收获种子的质量或健康是通过若干因素包括植株密度、发芽和植物活力的组合来度量的。植株密度度量为每给定面积的作物密度。发芽是种子发芽数的量度。活力是当种植于标准环境中时植物存活和生长的能力的度量。
种子发芽测试用于评估种子质量或成活力以及预测种子和幼苗在田间的性能。根据欲测试的种子的类型、测试的条件和种子的可能用途,可使用几种不同的测试种类。两种常见的测试是热发芽测试和加速老化测试。每种测试设计用于评估种子的各种品质。能影响种子在发芽测试中的性能的因素包括:患病种子、陈种、机械损伤的种子、在高水分下储藏过的种子,和种子在储藏或干燥期间过热。
优选的种子发芽测试是热发芽测试,因为其是用于标记目的的。发芽定义为:“由种胚出苗和发育那些基本结构,所述基本结构是在有利条件下产生正常植物的能力的指征”。热发芽测试反映了种批在理想的种子条件下形成植株个体的能力。在典型的热发芽测试种,从每个种批种取400颗种子在潮湿条件下置于吸墨纸、卷筒餐巾纸或沙子上,并在77°F保持约7天。在此段时期结束时,将幼苗分类为正常、异常、或患病的、和死亡的或硬的种子。发芽率由正常幼苗的数目除以所评估的种子的总数计算而得。
另一种发芽测试,加速老化测试(AA),评价在仓库储藏中的种批的留存(carryover)能力。将种子短期暴露于高温和高相对湿度下,这能引起种子退化。将种子悬浮于容器内的水上一段时间,例如72小时(小麦和大豆)或96小时(玉米),然后在标准的热发芽测试中测试。此测试一般仅用于寿命受怀疑的种子。
实施例1
在本发明的方法中,从用叶面杀虫剂处理过的植物收获的种子或从其种植前的种子用种子处理杀虫剂处理过的植物收获的种子,或从进行过两种处理(这两种处理是种植前的种子(种子处理)和苗后植物(叶面杀虫剂处理))的植物收获的种子,在热发芽和加速老化测试中测试以确定收获的种子的健康和质量。根据发芽测试,发现由栽培者在种子阶段、叶片阶段和两个阶段施用杀虫剂所得到的产种植物不仅是更健康的植物,而且能产生更健康的种子。已发现从这些被处理过的植物收获的种子具有更好的健康状况,最终形成更健康的种批。
发芽研究是对大豆植物进行的,比较了用杀真菌剂的组合处理过的植物和(1)其中仅施用杀虫种子处理;(2)其中施用了杀虫种子处理,继之以对所得植物的叶面杀虫处理;和(3)其中仅对由未处理的种子长成的植物施用叶面杀虫剂的植物。结果提供于表1。
表1
处理 | 热发芽(+/-标准误差) | 冷发芽(+/-标准误差) |
咯菌腈+甲霜灵(Mefenoxam) | 91.8(0.63) | 86.6(0.95) |
噻虫嗪30g | 91.4(0.63) | 86.7(0.95) |
噻虫嗪50g | 91.6(0.65) | 90.4(0.98) |
噻虫嗪50g+λ-氯氟氰菊酯(2次施用) | 93.2(0.70) | 90.7(1.06) |
λ-氯氟氰菊酯(2次施用) | 92.5(0.70) | 89.3(1.06) |
λ-氯氟氰菊酯(8/8) | 92.9(0.81) | 89.7(1.23) |
λ-氯氟氰菊酯(8/12) | 91.1(0.81) | 86.5(1.23) |
由于在不背离本发明范围的情况下可对上述方法和组合物进行各种改变,因此这意味着在上述说明书中包含的所有物质应解释为示例性的而非限制性的。
Claims (23)
1.一种提高由产种植物产生的种子的质量的方法,包括
a.用种子处理杀虫剂处理产种植物的种植前的种子;或
b.用叶面杀虫剂叶面施用处理产种植物;或
c.用种子处理杀虫剂处理产种植物的种植前的种子和用叶面杀虫剂叶面施用处理所得到的萌芽的植物。
2.根据权利要求1所述的方法,其中的种植前的种子用种子处理杀虫剂处理,所得到的萌发的植物用叶面杀虫剂叶面施用处理。
3.根据权利要求2所述的方法,其中的种子处理杀虫剂选自噻虫嗪、氟虫腈、啶虫脒、噻虫胺、呋虫胺、吡虫啉、烯啶虫胺和噻虫啉。
4.根据权利要求3所述的方法,其中的种子处理杀虫剂选自噻虫嗪、氟虫腈、噻虫胺和吡虫啉。
5.根据权利要求3所述的方法,其中的种子处理杀虫剂选自噻虫嗪。
6.根据权利要求3所述的方法,其中的种子处理杀虫剂选自噻虫胺。
7.根据权利要求3所述的方法,其中的种子处理杀虫剂选自吡虫啉。
8.根据权利要求3所述的方法,其中的种子处理杀虫剂选自氟虫腈。
9.根据权利要求2所述的方法,其中的叶面杀虫剂是拟除虫菊酯杀虫剂,选自α-氯氰菊酯,高效氟氯氰菊酯,β-氯氰菊酯,氟氯菊酯,生物苄呋菊酯,乙氰菊酯,氟氯氰菊酯,氯氰菊酯,溴氰菊酯,S-氰戊菊酯,甲氰菊酯,氰戊菊酯,氟氰戊菊酯,γ-氯氟氰菊酯,λ-氯氟氰菊酯,氯菊酯,苯醚菊酯(及其异构体),苄呋菊酯,氟胺氰菊酯,七氟菊酯,四溴菊酯,ζ-氯氰菊酯,和ZXI-8901。
10.根据权利要求8所述的方法,其中的拟除虫菊酯杀虫剂选自λ-氯氟氰菊酯和七氟菊酯。
11.根据权利要求9所述的方法,其中的拟除虫菊酯是λ-氯氟氰菊酯。
12.根据权利要求2所述的方法,其中的种子处理杀虫剂是噻虫嗪,叶面杀虫剂是λ-氯氟氰菊酯。
13.根据权利要求1所述的方法,其中的种植前的种子用种子处理杀虫剂处理。
14.根据权利要求12所述的方法,其中的种子处理杀虫剂选自噻虫嗪、氟虫腈、啶虫脒、噻虫胺、呋虫胺、吡虫啉、烯啶虫胺和噻虫啉。
15.根据权利要求13所述的方法,其中的种子处理杀虫剂选自噻虫嗪、氟虫腈、噻虫胺和吡虫啉。
16.根据权利要求13所述的方法,其中的种子处理杀虫剂选自噻虫嗪。
17.根据权利要求13所述的方法,其中的种子处理杀虫剂选自噻虫胺。
18.根据权利要求13所述的方法,其中的种子处理杀虫剂选自吡虫啉。
19.根据权利要求13所述的方法,其中的种子处理杀虫剂选自氟虫腈。
20.根据权利要求1所述的方法,其中的产种植物用叶面杀虫剂叶面施用处理。
21.根据权利要求18所述的方法,其中的叶面杀虫剂是拟除虫菊酯杀虫剂,选自α-氯氰菊酯,高效氟氯氰菊酯,β-氯氰菊酯,氟氯菊酯,生物苄呋菊酯,乙氰菊酯,氟氯氰菊酯,氯氰菊酯,溴氰菊酯,S-氰戊菊酯,甲氰菊酯,氰戊菊酯,氟氰戊菊酯,γ-氯氟氰菊酯,λ-氯氟氰菊酯,氯菊酯,苯醚菊酯(及其异构体),苄呋菊酯,氟胺氰菊酯,七氟菊酯,四溴菊酯,ζ-氯氰菊酯,和ZXI-8901。
22.根据权利要求19所述的方法,其中的拟除虫菊酯杀虫剂选自λ-氯氟氰菊酯和七氟菊酯。
23.根据权利要求20所述的方法,其中的拟除虫菊酯λ--氯氟氰菊酯。
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CN102696659A (zh) * | 2012-05-03 | 2012-10-03 | 陕西韦尔奇作物保护有限公司 | 一种含七氟菊酯与新烟碱类的杀虫组合物 |
CN111642513A (zh) * | 2020-07-07 | 2020-09-11 | 山东潍坊润丰化工股份有限公司 | 吡虫啉和高效氟氯氰菊酯的农药组合物、可分散油悬浮剂、其制备方法和应用 |
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US6713077B1 (en) * | 1999-07-28 | 2004-03-30 | Monsanto Technology, Llc | Control of shoot/foliar feeding pests with pesticide seed treatments |
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CN102696659B (zh) * | 2012-05-03 | 2016-12-28 | 陕西韦尔奇作物保护有限公司 | 一种含七氟菊酯与新烟碱类的杀虫组合物 |
CN111642513A (zh) * | 2020-07-07 | 2020-09-11 | 山东潍坊润丰化工股份有限公司 | 吡虫啉和高效氟氯氰菊酯的农药组合物、可分散油悬浮剂、其制备方法和应用 |
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