CN107646554A - 一种耐高温高产小叶芫荽育种的方法 - Google Patents
一种耐高温高产小叶芫荽育种的方法 Download PDFInfo
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Classifications
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- A01H—NEW PLANTS OR NON-TRANSGENIC PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
- A01H1/00—Processes for modifying genotypes ; Plants characterised by associated natural traits
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/36—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
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- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
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- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N61/00—Biocides, pest repellants or attractants, or plant growth regulators containing substances of unknown or undetermined composition, e.g. substances characterised only by the mode of action
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- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
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- C05F1/007—Fertilisers made from animal corpses, or parts thereof from derived products of animal origin or their wastes, e.g. leather, dairy products
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- C—CHEMISTRY; METALLURGY
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- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
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Abstract
本发明公开了一种耐高温高产小叶芫荽育种的方法,其特征在于,包括以下方面:(1)种子软化,先使用有机酸溶液对种子进行浸泡,然后浸入蛋白质溶液中浸渍5‑6天;(2)磁化育种,先将种子分别置于防护液和诱变剂溶液中进行浸渍,再浸入防护液中在高二氧化碳和氧气含量条件下,反复进行磁化育苗和恒温培养;(3)温室育苗,使用有机酸溶液和蛋白质溶液对育苗床经喷洒高温处理,然后播种芫荽种子进行温室育苗;(4)大棚种植,将芫荽幼苗进行移栽,在高温条件下培养至3代,并常温培养一季,收集生长速度快植株种子。
Description
技术领域
本发明属于蔬菜种植技术领域,具体涉及一种耐高温高产小叶芫荽育种的方法。
背景技术
芫荽,又名香菜、香荽,为伞形科植物鞠荽的全草,其状似芹菜,叶小且嫩,茎纤细,味郁香,为汤、凉菜中常用佐料,具有提味提香的作用;芫荽中富含丰富的维生素C、胡萝卜素、维生素b1和矿物质元素,并且其含有的挥发性油甘露糖醇、正葵醛、壬醛和芳樟醇等,具有开胃醒脾、发汗清热透疹的功能;芫荽其全草可入药,具有发汗透疹、消食下气、醒脾和中的功效,还可治疗食物积滞、胃口不开、脱肛等病症,具有较高的营养价值和药用价值。但是芫荽生长习性为耐寒而不耐高温,其可耐受-1至2℃低温,但是当温度高于30℃时就会停止生长,自然栽种只能在春秋两季食用,而夏季高温天气不适宜其生长条件;而夏季采用大棚方式种植,调节大棚内温度需耗费大量的能源,种植成本高。芫荽分为大叶和小叶两中品种,大叶品种产量高,但是香气淡,口感不佳,小叶香气浓但是产量低,不能满足市场需求;采用杂交育种方法对小叶芫荽进行改良,会导致其口感变差。
发明内容
本发明针对现有的问题:耐热性方面,芫荽生长习性为耐寒而不耐高温,其可耐受-1至2℃低温,但是当温度高于30℃时就会停止生长,自然栽种只能在春秋两季食用,而夏季高温天气不适宜其生长条件;而夏季采用大棚方式种植,调节大棚内温度需耗费大量的能源,种植成本高。芫荽分为大叶和小叶两中品种,大叶品种产量高,但是香气淡,口感不佳,小叶香气浓但是产量低,不能满足市场需求;采用杂交育种方法对小叶芫荽进行改良,会导致其口感变差。为解决上述问题,本发明提供了一种耐高温高产小叶芫荽育种的方法。
本发明是通过以下技术方案实现的:
一种耐高温高产小叶芫荽育种的方法,包括以下步骤:
(1)种子软化:先将小叶芫荽种子浸入有机酸溶液中进行恒温培养,对硬质外壳进行软化,提高营养成分吸收和诱变效果,并可提高细胞活性和抗逆性,再浸入蛋白质溶液中在4-6℃温度下浸渍5-6天,其含有的丰富氨基酸成分可降低诱变源对种子的损伤,得软化种子;
(2)磁化育种:使用平板轻轻对软化种子下压,得破壳种子,先将破壳种子浸入防护液中在24-28℃温度、压力0.2-0.3MPa下浸泡1-2h,防护液中含有多种维生素可提高种子抗氧化和抗逆性能力,然后在浸入诱变剂溶液中浸泡1-2h,再将破壳种子浸入防护液中进行磁化育种,温度30-34℃,二氧化碳体积浓度为0.1%-0.14%,氧气体积浓度为26%-28%,富二氧化碳和氧气含量可刺激种子细胞活力,提高发芽生长,分别使用频率为2-3MPa和5-6MPa每1次/20min交替切换频率,循环进行4-5次,并且在30-34℃恒温条件培养3-4h,再进行磁化育种,循环进行磁化育种和恒温培养3-4次,制得诱变种子;磁化器产生的强磁场可改变细胞组织结构而产生耐高温性状植株个体,交替变换使用两中磁化频率可提高对细胞诱变效果,而反复进行磁化育种和恒温培养,具有提高诱变效果和降低强磁场对种子的损伤;
(3)温室育苗:对温室育苗床土壤分别喷洒有机酸溶液和蛋白质溶液,可提高发芽种子自身修复能力和活性,覆盖薄膜后在40-45℃温度下静置1天,然后将诱变种子播种进行温室育苗,培养至出苗,得小叶芫荽幼苗;通过高温育苗培养,筛选出据有耐高温性状的诱变后幼苗;
(4)大棚种植:将小叶芫荽幼苗进行大棚栽种,温度32-37℃,每2-3天喷洒1次蛋白质溶液,每5-6天喷洒1次有机酸溶液,挑选生长速度快的植株收集种子,将培养至第3代的小叶芫荽种子在15-20℃条件下培养一季,去除生长缓慢植株,获得耐高温、高产、遗传性状稳定和适应常温环境的植株,并对剩余植株进行培养收集种子,进行规模化种植。
步骤(1)所述的有机酸溶液,其中各配制成分质量计份为:水75-82份、柠檬酸7-9份、苹果酸4-6份、酒石酸3-5份、咖啡碱1-3份。
步骤(1)所述的蛋白质溶液,其配制方法为:
按照质量计份称取鲜豆浆27-33份、玉米浆19-24份、鲜牛奶12-16份,混合后加入总质量1%-2%的蛋白酶,在28-32℃温度下酶解2-3h,然后加入总质量3%-4%的发酵菌剂,发酵24-27h制得蛋白质溶液;其中所述的发酵菌剂,其中乳酸菌:枯草杆菌质量配比为2-3:1-2。
步骤(2)所述的防护液,其中维生素C:维生素E:叶酸质量配比为3:2-3:1,其质量浓度为11%-14%;所述的诱变剂溶液,其为重氮丝氨酸,质量浓度为1%-2%。
步骤(3)所述的温室育苗,其育苗方法为:诱变种子播种至育苗床后,播种后前12天,温度27-30℃,湿度53%-58%,播种后12天之后,温度为32-37℃,湿度65%-70%。
本发明相比现有技术具有以下优点:种子软化方法,芫荽种子外壳较硬,对芫荽种子的诱变和萌发均有较大程度的限制作用,使用植物性有机酸对种子外壳进行软化,可提高种子对蛋白质溶液营养成分吸收和诱变效果,并且种子吸收有机酸成分后可提高细胞活性和抗逆性,降低诱变源对种子胚芽部分的损伤程度,提高成活率。磁化育种方法,先将破壳种子浸入防护液中其含有多种维生素具有较强的抗氧化和组织修复能力,可降低抗生素和电磁诱变源对种子胚芽部分的损伤,诱变剂溶液中含有的重氮丝氨酸可对促进种子基因变异;而将种子置于富二氧化碳和氧气含量环境中可激发种子细胞活性,促进种子发芽生长,并且在30-34℃条件使用两种频率的磁化器对种子进行磁化诱变,其产生的强磁场可对种子细胞内部结构产生变化,从而产生适应高温环境的种子,不同频率磁场交替切换其产生不规则的磁场,可提高对种子内部结构改变效率,并且通过磁化育种和恒温培养交替进行,可对种子发芽各阶段进行有效磁化干扰,促进种子诱变产生,而且可避免长时间强磁化作用会造成种子不可逆的损伤,提高变异后种子的成活率。温室育苗方法,采用27-30℃和32-37℃温度对播种后诱变种子培养,筛选出对高温环境具有良好适应能力的植株,而定期使用有机酸溶液和蛋白质溶液进行喷洒,可提高发芽种子自身修复能力和活性,提高种子发芽率。大棚种植方法,对耐高温小叶芫荽植株进行移栽,在高温大棚环境中培育至第3代,并继续筛选生长速度快、产量高的植株,并且其遗传性状相对稳定,不会出现栽培种丢失现象,收集3代种子其具有耐高温、高产的特点;通过在15-20℃环境中栽培一季,可剔除对常温环境不适应植株,避免常温环境栽培出现减产现象。
具体实施方式
实施例1:
一种耐高温高产小叶芫荽育种的方法,包括以下步骤:
(1)种子软化:先将小叶芫荽种子浸入有机酸溶液中进行恒温培养,对硬质外壳进行软化,提高营养成分吸收和诱变效果,并可提高细胞活性和抗逆性,再浸入蛋白质溶液中在4.5℃温度下浸渍5天,其含有的丰富氨基酸成分可降低诱变源对种子的损伤,得软化种子;
(2)磁化育种:使用平板轻轻对软化种子下压,得破壳种子,先将破壳种子浸入防护液中在25℃温度、压力0.24MPa下浸泡1.5h,防护液中含有多种维生素可提高种子抗氧化和抗逆性能力,然后在浸入诱变剂溶液中浸泡1.5h,再将破壳种子浸入防护液中进行磁化育种,温度31℃,二氧化碳体积浓度为0.11%,氧气体积浓度为26.3%,富二氧化碳和氧气含量可刺激种子细胞活力,提高发芽生长,分别使用频率为2.2MPa和5.4MPa每1次/20min交替切换频率,循环进行4次,并且在31℃恒温条件培养3.5h,再进行磁化育种,循环进行磁化育种和恒温培养3次,制得诱变种子;磁化器产生的强磁场可改变细胞组织结构而产生耐高温性状植株个体,交替变换使用两中磁化频率可提高对细胞诱变效果,而反复进行磁化育种和恒温培养,具有提高诱变效果和降低强磁场对种子的损伤;
(3)温室育苗:对温室育苗床土壤分别喷洒有机酸溶液和蛋白质溶液,可提高发芽种子自身修复能力和活性,覆盖薄膜后在41℃温度下静置1天,然后将诱变种子播种进行温室育苗,培养至出苗,得小叶芫荽幼苗;通过高温育苗培养,筛选出据有耐高温性状的诱变后幼苗;
(4)大棚种植:将小叶芫荽幼苗进行大棚栽种,温度33℃,每2天喷洒1次蛋白质溶液,每5天喷洒1次有机酸溶液,挑选生长速度快的植株收集种子,将培养至第3代的小叶芫荽种子在16℃条件下培养一季,去除生长缓慢植株,获得耐高温、高产、遗传性状稳定和适应常温环境的植株,并对剩余植株进行培养收集种子,进行规模化种植。
步骤(1)所述的有机酸溶液,其中各配制成分质量计份为:水77份、柠檬酸7.2份、苹果酸4.3份、酒石酸3.6份、咖啡碱1.5份。
步骤(1)所述的蛋白质溶液,其配制方法为:
按照质量计份称取鲜豆浆28份、玉米浆20份、鲜牛奶13份,混合后加入总质量1.2%的蛋白酶,在29℃温度下酶解2.5h,然后加入总质量3.2%的发酵菌剂,发酵25h制得蛋白质溶液;其中所述的发酵菌剂,其中乳酸菌:枯草杆菌质量配比为2:1。
步骤(2)所述的防护液,其中维生素C:维生素E:叶酸质量配比为3:2:1,其质量浓度为12%;所述的诱变剂溶液,其为重氮丝氨酸,质量浓度为1.3%。
步骤(3)所述的温室育苗,其育苗方法为:诱变种子播种至育苗床后,播种后前12天,温度28℃,湿度54%,播种后12天之后,温度为33℃,湿度67%。
实施例2:
(1)种子软化:先将小叶芫荽种子浸入有机酸溶液中进行恒温培养,对硬质外壳进行软化,提高营养成分吸收和诱变效果,并可提高细胞活性和抗逆性,再浸入蛋白质溶液中在5.5℃温度下浸渍6天,其含有的丰富氨基酸成分可降低诱变源对种子的损伤,得软化种子;
(2)磁化育种:使用平板轻轻对软化种子下压,得破壳种子,先将破壳种子浸入防护液中在27℃温度、压力0.27MPa下浸泡2h,防护液中含有多种维生素可提高种子抗氧化和抗逆性能力,然后在浸入诱变剂溶液中浸泡2h,再将破壳种子浸入防护液中进行磁化育种,温度33℃,二氧化碳体积浓度为0.13%,氧气体积浓度为27.5%,富二氧化碳和氧气含量可刺激种子细胞活力,提高发芽生长,分别使用频率为2.8MPa和5.7MPa每1次/20min交替切换频率,循环进行5次,并且在33℃恒温条件培养4h,再进行磁化育种,循环进行磁化育种和恒温培养4次,制得诱变种子;磁化器产生的强磁场可改变细胞组织结构而产生耐高温性状植株个体,交替变换使用两中磁化频率可提高对细胞诱变效果,而反复进行磁化育种和恒温培养,具有提高诱变效果和降低强磁场对种子的损伤;
(3)温室育苗:对温室育苗床土壤分别喷洒有机酸溶液和蛋白质溶液,可提高发芽种子自身修复能力和活性,覆盖薄膜后在44℃温度下静置1天,然后将诱变种子播种进行温室育苗,培养至出苗,得小叶芫荽幼苗;通过高温育苗培养,筛选出据有耐高温性状的诱变后幼苗;
(4)大棚种植:将小叶芫荽幼苗进行大棚栽种,温度36℃,每3天喷洒1次蛋白质溶液,每6天喷洒1次有机酸溶液,挑选生长速度快的植株收集种子,将培养至第3代的小叶芫荽种子在18℃条件下培养一季,去除生长缓慢植株,获得耐高温、高产、遗传性状稳定和适应常温环境的植株,并对剩余植株进行培养收集种子,进行规模化种植。
步骤(1)所述的有机酸溶液,其中各配制成分质量计份为:水80份、柠檬酸8.4份、苹果酸5.6份、酒石酸4.5份、咖啡碱2.7份。
步骤(1)所述的蛋白质溶液,其配制方法为:
按照质量计份称取鲜豆浆32份、玉米浆23份、鲜牛奶15份,混合后加入总质量1.8%的蛋白酶,在31℃温度下酶解3h,然后加入总质量3.7%的发酵菌剂,发酵26h制得蛋白质溶液;其中所述的发酵菌剂,其中乳酸菌:枯草杆菌质量配比为3:2。
步骤(2)所述的防护液,其中维生素C:维生素E:叶酸质量配比为3:3:1,其质量浓度为13%;所述的诱变剂溶液,其为重氮丝氨酸,质量浓度为1.9%。
步骤(3)所述的温室育苗,其育苗方法为:诱变种子播种至育苗床后,播种后前12天,温度29℃,湿度57%,播种后12天之后,温度为36℃,湿度68%。
对比1:
本对比1与实施例1比较,未进行步骤(1)种子软化,其他步骤实施例1相同。
对比2:
本对比2与实施例1比较,未进行步骤(2)中两种磁化频率交替方法,只使用5.4MPa磁化频率,其他步骤与实施例2相同。
对比3:
本对比3与实施例1比较,未进行步骤(2)中恒温培养,其他步骤与实施例1相同。
对比4:
本对比4与实施例2比较,未进行步骤(3)中温室育苗条件,其他步骤与实施例2相同。
对比5:
本对比5与实施例2比较,未进行步骤(4)中培养至3代收集种子,其他步骤与实施例2相同。
对照组:
本对照组对以未诱变前小叶芫荽为参照,未使用种子软化、两种磁化频率交替、恒温培养、温室育苗条件和收集3代种子。
对实施例1、实施例2、对比1、对比2、对比3、对比4、对比5及对照组实验方案,统计芫荽的平均亩产、最高耐受温度、维生素含量、口感香味评价进行比较。
口感香味评价:其中﹢﹢﹢﹢﹢为很好,﹢﹢﹢﹢为较好,﹢﹢﹢为一般,﹢﹢为差,﹢为很差;各评价样本容量均为130个,以超样本2/3评价结果为准。
实验数据:
综合结果:本发明所培育的小叶芫荽,与对照组比较,其平均亩产提高270kg,高温耐受温度提高11℃,维生素C含量提高18mg/100g,并具有较好的口感和香味。使用两种磁化频率和恒温培养,平均亩产提高84kg、50kg,最高耐受温度提高5℃、3℃,维生素C含量提高6mg/100g、4mg/100g,并可保持小叶芫荽较好口感和香味;而使用温室育苗和3代收集种子,可提高平均亩产62kg、55kg,维生素C含量提高5mg/100g、2mg/100g。
Claims (5)
1.一种耐高温高产小叶芫荽育种的方法,其特征在于,包括以下步骤:
(1)种子软化:先将小叶芫荽种子浸入有机酸溶液中进行恒温培养,再浸入蛋白质溶液中在4-6℃温度下浸渍5-6天,得软化种子;
(2)磁化育种:使用平板轻轻对软化种子下压,得破壳种子,先将破壳种子浸入防护液中在24-28℃温度、压力0.2-0.3MPa下浸泡1-2h,然后在浸入诱变剂溶液中浸泡1-2h,再将破壳种子浸入防护液中进行磁化育种,温度30-34℃,二氧化碳体积浓度为0.1%-0.14%,氧气体积浓度为26%-28%,分别使用频率为2-3MPa和5-6MPa每1次/20min交替切换频率,循环进行4-5次,并且在30-34℃恒温条件培养3-4h,再进行磁化育种,循环进行磁化育种和恒温培养3-4次,制得诱变种子;
(3)温室育苗:对温室育苗床土壤分别喷洒有机酸溶液和蛋白质溶液,覆盖薄膜后在40-45℃温度下静置1天,然后将诱变种子播种进行温室育苗,培养至出苗,得小叶芫荽幼苗;
(4)大棚种植:将小叶芫荽幼苗进行大棚栽种,温度32-37℃,每2-3天喷洒1次蛋白质溶液,每5-6天喷洒1次有机酸溶液,挑选生长速度快的植株收集种子,将培养至第3代的小叶芫荽种子在15-20℃条件下培养一季,去除生长缓慢植株,并对剩余植株进行培养收集种子,进行规模化种植。
2.如权利要求1所述耐高温高产小叶芫荽育种的方法,其特征在于,步骤(1)所述的有机酸溶液,其中各配制成分质量计份为:水75-82份、柠檬酸7-9份、苹果酸4-6份、酒石酸3-5份、咖啡碱1-3份。
3.如权利要求1所述耐高温高产小叶芫荽育种的方法,其特征在于,步骤(1)所述的蛋白质溶液,其配制方法为:
按照质量计份称取鲜豆浆27-33份、玉米浆19-24份、鲜牛奶12-16份,混合后加入总质量1%-2%的蛋白酶,在28-32℃温度下酶解2-3h,然后加入总质量3%-4%的发酵菌剂,发酵24-27h制得蛋白质溶液;其中所述的发酵菌剂,其中乳酸菌:枯草杆菌质量配比为2-3:1-2。
4.如权利要求1所述耐高温高产小叶芫荽育种的方法,其特征在于,步骤(2)所述的防护液,其中维生素C:维生素E:叶酸质量配比为3:2-3:1,其质量浓度为11%-14%;所述的诱变剂溶液,其为重氮丝氨酸,质量浓度为1%-2%。
5.如权利要求1所述耐高温高产小叶芫荽育种的方法,其特征在于,步骤(3)所述的温室育苗,其育苗方法为:诱变种子播种至育苗床后,播种后前12天,温度27-30℃,湿度53%-58%,播种后12天之后,温度为32-37℃,湿度65%-70%。
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