CN114467958B - 一种植物生长调节物质降低蜜柚汁胞粒化的复合药剂及方法 - Google Patents

一种植物生长调节物质降低蜜柚汁胞粒化的复合药剂及方法 Download PDF

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CN114467958B
CN114467958B CN202210006995.7A CN202210006995A CN114467958B CN 114467958 B CN114467958 B CN 114467958B CN 202210006995 A CN202210006995 A CN 202210006995A CN 114467958 B CN114467958 B CN 114467958B
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黄家权
罗嘉腾
陈银华
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Abstract

本发明提供一种植物生长调节物质降低蜜柚汁胞粒化的复合药剂及方法,该复合药剂,由烯效唑、复硝酚钠、胺鲜酯中的2种或2种以上复配而成的药剂;可用于防控蜜柚在果实成熟以及果实贮藏期间汁胞的粒化,本发明从源头有效控制了柑橘果实粒化,药剂配制简单,成本低,操作方便,实现在蜜柚生长阶段以及贮藏阶段良好的防控蜜柚汁胞粒化的作用,并且有效提高成熟果实的品质。

Description

一种植物生长调节物质降低蜜柚汁胞粒化的复合药剂及方法
技术领域
本发明涉及植物生长调节技术领域,特别涉及一种植物生长调节物质降低蜜柚汁胞粒化的复合药剂及方法。
背景技术
蜜柚是柑橘类水果中十分重要的品种之一,约占柑橘产量的12.2%。蜜柚果实硕大,果肉饱满多汁且富含维生素C而深受消费者喜爱,经济价值高。汁胞粒化是柑橘类水果中的一种常见的生理病害,在蜜柚中尤为严重。粒化是汁胞木质素过度积累的结果。蜜柚粒化通常发生在成熟期与贮藏期,表现为汁胞异常膨大、失水、变硬、浑浊而导致果肉风味骤降,严重影响其食用价值与商品价值。
目前对于防控蜜柚胞粒化的方法,主要包括:新品种选育、合理选择砧木、平衡施肥和灌溉、植物生长调节剂等,但在实际应用中,现有的防控稳定性较差,受环境影响较大,不适合大范围推广应用,达不到节本增效的目的。同时,大多数措施主要针对蜜柚采后储存果实的粒化,而无法在蜜柚生长期或果实成熟时有效的降低果肉的粒化,其防控作用有一定的局限性;而且尚没有其他用化学药剂在降低成熟时果实木质化的同时,降低贮藏期果实的木质化,现有技术方案使用成本高,经济效益低,导致农户实际使用的意愿低,因此,亟需一种经济有效防控蜜柚汁胞粒化的方法。
发明内容
鉴以此,本发明提出一种植物生长调节物质降低蜜柚汁胞粒化的复合药剂及方法。
本发明的技术方案是这样实现的:
一种植物生长调节物质降低蜜柚汁胞粒化的复合药剂,由烯效唑、复硝酚钠、胺鲜酯中的2种或2种以上复配而成。
一种植物生长调节物质降低蜜柚汁胞粒化的复合药剂,按照质量浓度比,包括18~22ppm烯效唑、4~8ppm复硝酚钠、4~8ppm胺鲜酯和0.4~0.6%吐温-20。
更优选的,按照质量浓度比,包括20ppm烯效唑、6ppm复硝酚钠、6ppm胺鲜酯和0.5%吐温-20。
一种植物生长调节物质降低蜜柚汁胞粒化的复合药剂,可用于防控蜜柚在果实成熟以及果实贮藏期间汁胞的粒化。
一种采用上述复合药剂降低蜜柚汁胞粒化的方法,在蜜柚开花后的100~105天和150~155天,分别对果实表面喷施复合药剂,以喷施果皮表面全部湿润,以果实底部滴水为准。
进一步说明,在蜜柚开花后的100天和150天,分别对果实表面喷施2次复合药剂,喷药前停雨2天以上,每次喷施间隔30min以上。
进一步说明,所述喷施复合药剂的时间为早上10点之前或下午5点之后。
与现有技术相比,本发明的有益效果是:
(1)本发明采用烯效唑、复硝酚钠与胺鲜酯组合复配,同时添加吐温-20制备而得的复合药剂,从源头有效控制柑橘果实粒化,解决了柑橘果实粒化造成的经济损失。
(2)本发明药剂配制简单,成本低,操作方便,作用明显,能够大范围应用于实际生产中,受环境影响低,经济效益高,为种植户提供新的简单可行的方案选择,防控方便且适用性好。
(3)本发明在果实生长初期开始防控,全生长期和全经济周期减少蜜柚粒化,成熟蜜柚果肉木质素含量显著降低,并在降低蜜柚果实粒化的同时,显著提高成熟果实的品质;
(4)本发明同时还能够有效降低了贮藏期果实的粒化,提高贮藏期果实的品质,从而达到在蜜柚生长阶段以及贮藏阶段能起到防控粒化的作用,提高种植户的经济收益。
附图说明
图1为本发明药剂喷施处理的蜜柚果皮厚度情况图;
图2为本发明药剂喷施处理的蜜柚果实的干重鲜重比情况图;
图3为本发明药剂喷施处理30的蜜柚果实可溶性固形物含量情况图;
图4为本发明药剂喷施处理的蜜柚果实的糖酸比情况图;
图5为本发明药剂喷施处理的蜜柚Vc含量变化的情况图;
图6为本发明药剂喷施处理30d的蜜柚果肉汁胞木质素含量变化情况图;
图7为本发明药剂喷施处理60d的蜜柚果肉汁胞木质素含量变化情况图;
图8为本发明药剂喷施处理的蜜柚果贮藏15d后的木质素含量变化情况图。
具体实施方式
为了更好理解本发明技术内容,下面提供具体实施例,对本发明做进一步的说明。
本发明实施例所用的实验方法如无特殊说明,均为常规方法。
本发明实施例所用的材料、试剂等,如无特殊说明,均可从商业途径得到。
实施例1
一种植物生长调节物质降低蜜柚汁胞粒化的复合药剂,按照质量浓度比,包括18ppm烯效唑、4ppm复硝酚钠、4ppm胺鲜酯和0.4%吐温-20。
实施例2
一种植物生长调节物质降低蜜柚汁胞粒化的复合药剂,按照质量浓度比,包括22ppm烯效唑、8ppm复硝酚钠、8ppm胺鲜酯和0.6%吐温-20。
实施例3
一种植物生长调节物质降低蜜柚汁胞粒化的复合药剂,按照质量浓度比,包括18ppm烯效唑、4ppm复硝酚钠和0.4%吐温-20。
将由上述实施例1~3制备的复合药剂,用于防控蜜柚在果实成熟以及果实贮藏期间汁胞的粒化,具体防控方法为:
(1)喷施时间:在蜜柚开花后的105天和155天,下午5点之后,分别喷施2次复合药剂,喷药前停雨2天以上,每次喷施间隔35min。
(2)喷施方式:将复合药剂,直接对果实表面喷施,以喷施果皮表面全部湿润,以果实底部滴水为准。
实施例4
一种植物生长调节物质降低蜜柚汁胞粒化的复合药剂,按照质量浓度比,包括20ppm烯效唑、6ppm复硝酚钠、6ppm胺鲜酯和0.5%吐温-20。
实施例5-蜜柚汁胞粒化的成熟期和贮藏期的防控实验
1、实验设置
(1)实验材料:选用生长条件相同、长势健壮、砧木相同、管理水平相当的三红蜜柚植株作为实验材料;
(2)实验组设置:
防控方法:在蜜柚开花后的100天和150天,早上10点之前,分别对果实表面喷施2次药剂,喷药前停雨2天以上,每次喷施间隔30min;以喷施果皮表面全部湿润,以果实底部滴水为准。
药剂:以喷施实施例4药剂的处理称为T1,对照药剂处理称为T2,清水处理称为CK空白对照;对照药剂为:质量浓度比:烯效唑20ppm+IAA 10ppm+0.5%吐温-20;
(3)统计:在施药后30天、施药后60天,随机取CK、T1和T2,各5个测量木质素含量;在成熟期随机取CK、T1和T2,各5个测量品质指标;采后室温贮藏15天,检测木质素含量的变化。每次设置3个重复,每个重复取5个果实混合,测定样本的木质素含量。
2、实验结果与分析
(1)本发明复合药剂喷施处理显著改善了果实成熟期的品质。
如图1~5所示,喷施实施例4的复合药剂处理,显著提高了果实的品质。在果实成熟时,T1的蜜柚果皮厚度为1.17cm,比CK空白对照(1.82cm)薄了近1/3,比对照药剂T2(1.29cm)薄了近1/10,表明,本发明复合药剂的处理,显著增加了蜜柚的可食率,如图1所示。
同时,更多的有机物质在处理后的蜜柚中累积,T1的蜜柚干鲜重比比CK高11.6%,比T2高3.8%,如图2所示,表明本发明复合药剂的处理,有利于促进蜜柚果实有机物质的积累。
由图3结果可以看出,处理后,T1蜜柚可溶性固形物的含量也比CK明显增加了20%以上,比T2增加了5.5%;如图4所示,蜜柚果实的糖酸比,T1处理为15.28,其比CK(11.5)、T2(12.23)均显著增加;同时,T1蜜柚中的抗坏血酸含量也较CK增加了约10%,较T2增加了约6%,如图5所示。
(2)本发明复合药剂喷施处理,不同果实生长期木质素含量显著降低。
在药剂喷施30天后,分别测定不同实验组的果实汁胞中木质素含量,其结果如图6所示,其中,CK清水处理的果实木质素含量为2.46g/kg Fw,T2对照药剂处理的果实木质素含量为2.62g/kg Fw,而T1喷施实施例4复合药剂处理,果实木质素含量仅为1.99g/kg Fw,即,T1比对照CK降低了19%,比T2少了24%。
在药剂喷施处理60天后继续测定,T1则比对照CK降低了23.7%,比T2降低了23.3%,如图7所示。其结果表明,本发明复合药剂喷施处理,对蜜柚果肉木质素含量显著降低,其对蜜柚果实生长阶段的蜜柚汁胞粒化起到明显的防控作用。
综上,蜜柚成熟期的果皮厚度、干鲜重比、可溶性固形物、糖酸比和抗坏血酸含量的结果分析,以及不同果实生长期木质素含量变化的结果分析表明,本发明采用由一定浓度的烯效唑、复硝酚钠、胺鲜酯和吐温-20组合复配而得的复合药剂进行蜜柚汁胞粒化的喷施防控,从源头有效控制柑橘果实粒化,不仅在蜜柚生长阶段起到有效的防控粒化作用,解决了柑橘果实粒化造成的经济损失,而且可显著改善了果实成熟期的品质。
(3)本发明复合药剂喷施处理,改善了贮藏阶段的果实品质
本发明通过将上述不同处理而得的蜜柚果实,置于室温下贮藏15天后,分别测定其果实木质素含量,如图8所示,其中,CK对照处理中,蜜柚果实中木质素含量有所增加,T2处理的蜜柚果实中木质素含量显著提高,表明其加剧了蜜柚果实贮藏期的汁胞粒化,而实施例4处理的果实贮藏期的木质素含量降低,表明了本发明复合药剂的喷施处理,能够有效降低了贮藏期果实的粒化,提高贮藏期果实的品质,在贮藏阶段能起到防控粒化的作用,提高种植户的经济收益。
根据以上实验数据标明,通过本发明复合药剂,可用于在蜜柚开花后的果实生长初期的汁胞粒化的喷施防控,蜜柚果实品质显著提高,而且蜜柚汁胞木质素含量降低,本发明复合药剂能够在提高果实品质的同时,有效的防控蜜柚在果实生长成熟以及果实贮藏期间汁胞的粒化。
实施例6
复合药剂中不同浓度下烯效唑和复硝酚钠,对蜜柚汁胞粒化的影响。
依据如实施例5中的防控方法,选择以下不同的复合药剂,对蜜柚果实进行喷施防控,并分别统计在施药后30天的果实木质素含量变化。
药剂1:10ppm烯效唑、6ppm复硝酚钠、6ppm胺鲜酯和0.5%吐温-20;
药剂2:28ppm烯效唑、6ppm复硝酚钠、6ppm胺鲜酯和0.5%吐温-20;
药剂3:20ppm烯效唑、0.5ppm复硝酚钠、6ppm胺鲜酯和0.5%吐温-20;
药剂4:20ppm烯效唑、12ppm复硝酚钠、6ppm胺鲜酯和0.5%吐温-20。
其木质素含量变化如下表:
Figure BDA0003455733160000061
由上表可以看出,过高浓度的烯效唑或复硝酚钠的复合药剂用于蜜柚的喷施防控时,其对蜜柚果实生长期的木质素含量的控制效果下降,即,随着烯效唑或复硝酚钠浓度的逐渐增长,其对蜜柚果实汁胞粒化的产生一定抑制作用,表明本发明通过采用较低浓度的烯效唑、复硝酚钠与胺鲜酯和吐温-20的组合,能够在蜜柚生长阶段和贮藏阶段均起到良好防控粒化的作用。
以上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。

Claims (4)

1.一种植物生长调节物质降低蜜柚汁胞粒化的复合药剂,其特征在于:按照质量浓度比,包括20ppm烯效唑、6ppm复硝酚钠、6ppm胺鲜酯和0.5%吐温-20。
2.一种采用权利要求1所述的复合药剂降低蜜柚汁胞粒化的方法,其特征在于:在蜜柚开花后的100~105天和150~155天,分别对果实表面喷施复合药剂,以喷施果皮表面全部湿润,以果实底部滴水为准。
3.如权利要求2所述的降低蜜柚汁胞粒化的方法,其特征在于:在蜜柚开花后的100天和150天,分别对果实表面喷施2次复合药剂,喷药前停雨2天以上,每次喷施间隔30min以上。
4.如权利要求2所述的降低蜜柚汁胞粒化的方法,其特征在于:所述喷施复合药剂的时间为早上10点之前或下午5点之后。
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