CN108496668A - 一种黄皮果的育苗方法 - Google Patents

一种黄皮果的育苗方法 Download PDF

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CN108496668A
CN108496668A CN201810137608.7A CN201810137608A CN108496668A CN 108496668 A CN108496668 A CN 108496668A CN 201810137608 A CN201810137608 A CN 201810137608A CN 108496668 A CN108496668 A CN 108496668A
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刘小斌
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Li Riverside County Wanjiaxing Fruit And Vegetable Cooperatives
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Abstract

本发明属于农业种植技术领域,具体公开了一种黄皮果的育苗方法。本发明的黄皮果育苗方法包括以下步骤:(1)黄皮种子选择:采收8‑9成熟的黄皮果,去掉果皮果肉后得到黄皮种子;(2)种子处理:依次对所述黄皮种子进行晾晒、烘烤和防虫剂喷涂处理后沙藏;(3)种子催芽:依次采用无菌水、催芽剂对黄皮种子进行浸泡处理;其中,所述催芽剂主要由一定重量份的磷酸三钠、磷酸二氢钾、尿素、鸡血藤、三加皮、萘乙酸钠、赤霉素和微量元素等制成;(4)播种育苗:将催芽后的种子播种于芽床中。本发明黄皮果的育苗方法可有效提高种子的出芽率,其育苗得到的黄皮果幼苗定植后成活率高且生长速度快。

Description

一种黄皮果的育苗方法
【技术领域】
本发明涉及农业种植技术领域,具体涉及一种黄皮果的育苗方法。
【背景技术】
黄皮果色泽金黄、酸甜可口,黄皮果肉中含有丰富的氨基酸、维生素以及较丰富的钾、钙等矿质元素,还具有增强人体免疫力以及抗氧化的多糖、黄酮等,营养丰富,具有消食健胃、理气健脾、行气止痛、生津解渴等功效,是食用和药疗的佳品。
但是由于在天然条件下,黄皮种子的生活力仅为26-45%,在自然状态下的萌发率仅为6.1-17%,且萌发得到的幼苗在定植后死亡率高且生长速度慢,不利于黄皮果的繁殖。
因此,提供一种种子萌发率高且幼苗成活率高、生长健壮的黄皮育苗方法对于黄皮果的种植扩繁具有重要意义。
【发明内容】
本发明的发明目的在于:针对上述存在的问题,提供一种黄皮果的育苗方法。本发明黄皮果的育苗方法可有效提高种子的出芽率,其育苗得到的黄皮果幼苗定植后成活率高且生长速度快。
为了实现上述目的,本发明采用的技术方案如下:
一种黄皮果的育苗方法,进一步的,包括以下步骤:
(1)黄皮种子选择:在8月采收8-9成熟的黄皮果,去掉果皮果肉后得到黄皮种子;8月是黄皮果成熟的高峰期,在这个月采收黄皮果的质量好,且选择8-9成熟黄皮果利于避免过熟的黄皮出现虫叮腐烂等影响种子质量;
(2)种子处理:先将所述黄皮种子置于阴凉处晾干表面,然后将晾干的黄皮种子置于38-41℃下烘至种子含水量为62-65%,再采用防虫剂对黄皮种子进行均匀喷涂后晾干,最后用沙藏法进行贮藏;所述防虫剂按重量份计,包括下列原料组分:南瓜子2-5份、川楝子1-4份、白苏叶2-4份、马桂花3-5份、羧甲基壳聚糖3-6份、大豆分离蛋白1-2份和海藻酸纳0.2-0.5份;首先,先将种子表面晾干利于避免在后续烘烤过程中黏连导致烘烤不均匀,其次,相对于直接室外晒干或晾干,采用38-41℃的温度进行烘烤,一方面利于提高黄皮种子的晾晒均匀度,一方面利于缩短晾晒时间,避免了黄皮种子营养成分的大量损失,以便在后续催芽中提高出芽率,而使种子的含水量为62-65%,可避免种子在后续贮藏过程中失活或腐烂,在该含水量下,种子贮藏的完好率达到95.4%以上;最后,采用防虫剂进行喷涂,在种子表面形成一层保护膜,可有效避免在贮藏过程中滋生病虫,从而提高了种子贮藏的完好率至99.2%以上,其中,南瓜子、川楝子、白苏叶和马桂花协同作用,大大提升了防虫剂的防虫效果,防虫效果可达89.5%,添加的海藻酸纳可以使羧甲基壳聚糖的抑菌效果提升5.3-5.5%,此外,海藻酸钠、羧甲基壳聚糖和大豆分离蛋白共同作用,不仅可以增强以上中药组分的稳定性,而且使得本防虫剂喷涂后形成的膜具有良好的物理性质,从而很好的抑制的种子的呼吸速率,降低了营养消耗,经过试验证明,本发明防虫剂形成的膜的抗拉强度为18.45-19.14MPa、水蒸气透过系数为0.45±0.03X10-12g/(cm·s·Pa),氧气透过率为1.93±0.02X10-5cm3/(m2·d·Pa);
(3)种子催芽:将贮藏后的种子先于40-43℃下烘35-40min,然后在超声波的辅助下,于30-35℃的无菌水下浸泡15-20min后,捞出;将无菌水浸泡过的种子浸入催芽剂中,先采用超声波辅助处理30-40min,再继续自然浸泡2-3h,捞出,于光照下放置2-3h;将种子先烘烤可使防虫剂膜出现裂痕,而后在超声波的辅助下温水浸泡可使种子表面喷涂的防虫剂膜连同种子自身表面的胶质层一同脱落,相对于依次热烫处理后再冷处理除掉种子的胶质层,本发明的方法有效不会对种子产生伤害,而且还可活化种子,种子的出芽率提高了3.1-3.5%;然后将种子在超声波的辅助下使用催芽剂浸泡,使种子充分吸收催芽剂的有效成分,有效促进了种子的萌芽;
(4)播种育苗:将催芽后的种子播种于铺设基质的芽床中,且种子埋藏深度为2-2.5cm;播种后,每天采用强度为850-870lx的光照12-14h,且控制所述芽床的含水率为60-65%直到种子出芽后,继续培育至长成12-15cm高的幼苗,即可得到黄皮果苗;该条件为黄皮种子营造了一个适宜的生长环境,利于促进种子的萌芽;
其中,所述催芽剂按重量份计,包括下列原料组分:磷酸三钠4-8份、磷酸二氢钾1-2份、硝酸钾1-2份、尿素0.5-1份、鸡血藤2-5份、三加皮2-5份、透骨草1-3份、山茱萸1-2份、萘乙酸钠0.1-0.5份、赤霉素0.2-0.4份、微量元素0.1-0.2份、甜菜碱0.03-0.06份、天冬氨酸0.2-0.5份和葡萄糖1-2份;首先,磷酸三纳、磷酸二氢钾、硝酸钾、尿素和微量元素合理搭配,使得所述催芽剂含有丰富、协调的矿质元素,可有效促进黄皮种子的酶活性,尤其是POD同工酶和SOD同工酶酶的活性可分别提高7.4%和5.8%以上,从而提升了黄皮种子的活力且持续时间长,促进了种子的新陈代谢,从而提升了黄皮种子出芽的速度和出芽率;其次,磷酸三纳、鸡血藤、三加皮、透骨草和山茱萸搭配,结合了抑菌、抗病毒、防虫这三种功效,且组合的功效比单一组分增强了8-12%,从而使得所述催芽剂具有强的防护功效,降低了病虫害对黄皮种子的影响,利于促进黄皮种子的健康生长,且提高了所得幼苗的抗病力,相对于未添加以上组分的催芽剂,本发明的催芽剂可使幼苗高发的根腐病和小地老虎病的发病率降低12.3%和10.7%以上;再次,萘乙酸钠和赤霉素搭配作为生长调节剂,可有效促进黄皮种子的抽芽、生根和成长,相对于仅添加萘乙酸钠或赤霉素的催芽剂,本发明催芽剂处理黄皮种子的发芽率可提高4.8-5.3%,平均生根数增加了3.2-3.5根,且主根的长度增长了2.5-2.8cm;最后,以甜菜碱、天冬氨酸和葡萄糖搭配作为渗透调节剂,可以有效的保持种子细胞与环境的渗透平衡,利于种子细胞稳定的吸收本发明的催芽剂,还可以与黄皮种子细胞内的化合物形成类似亲水胶体的聚合物,保水作用好,利于在后续播种过程中保持种子内部具有充足的水分,同时,该渗透调节剂还可以稳定黄皮种子内的酶活性,避免酶活性过高、新陈代谢过快导致的种子老化,从而促进了种子稳定、快速的生长;综上,本发明催芽剂中的各个组分相互搭配作用,具有营养充分合理、病虫害防护作用强、生长调节和渗透调节效果好的特点,从而可有效提升了黄皮种子的出芽速度、出芽率、出芽后的生长速度和健壮程度;
所述芽床的基质按重量份计,包括下列原料组分:河沙20-25份、蛭石4-7份、草炭3-6份、水晶泥3-5份、椰粉纤维3-5份、锯末1-3份、马粪3-6份、鸡粪1-3份、过磷酸钙1-2份、尿素1-1.5份、硝酸钾1-1.5份、中草药2-4份和有益微生物1.5-2份;其中,所述中草药按重量份计,主要由川楝子1-3份、白苏叶2-5份、马桂花2-5份和三加皮3-7份经过粉碎混合制成;首先,河沙和蛭石搭配排水透气性好,避免芽床积水导致种子腐烂的现象,水晶泥和椰粉纤维搭配保水保肥性好,利于保持芽床的湿度以及营养的缓慢均匀释放,提高了养分的利用率,以上四种组分搭配作为本发明芽床的基本物质,协同作用,使得本发明的基质具有良好的孔隙度和气水比;其次,草炭、锯末、马粪和鸡粪搭配为农家肥,营养元素丰富,肥效释放缓慢持久,该农家肥和以上基本物质搭配,使得本发明的基质具有良好的饱和含水率和pH,并且,该农家肥和过磷酸钙、尿素、硝酸钾搭配的速效肥结合,肥效释放有慢有快,使得在整个育苗过程中,肥效释放量平稳,利于为整个育苗阶段提供充足的营养来源;再次,由川楝子、白苏叶、马桂花和三加皮合理搭配制成的中草药具有好的防虫、抑菌效果,进一步降低了病虫害对黄皮种子以及萌发得到的幼苗的生长,降低了幼苗的发病率;最后,添加的有益微生物不仅代谢产生大量的植物内源酶,可以明显提高黄皮种子及其幼苗对基质中营养元素的吸收率,而且还可分解有毒有害物质,进而提高了基质的洁净程度,大大降低了黄皮种子从基质中吸收到有毒有害物质的几率,利于提高黄皮种植的价值;综上,本发明基质中各个组分相互搭配作用,使得本发明的基质具有化学稳定性好、物理性质好,利于促进黄皮种子的发芽以及芽的生长,其中,经过实验测定得到,本发明基质的一些性质如下:总孔隙度62.6-65.3%、气水比0.48-0.5、pH5.8-6.3、饱和含水率72-75%、电导率0.9-1.1mS/cm、碳氮比258:1-264:1,在该性质下,极好的促进了黄皮种子的生长。
进一步的,步骤(1)中,所述防虫剂的制备方法为:将所述南瓜子、川楝子、白苏叶和马桂花混合粉碎过60目筛后,加入乙醇进行提取、过滤得滤液,将所述滤液旋蒸、浓缩至密度为1.26-1.32,得提取剂;将所述提取剂和溶解后的羧甲基壳聚糖、大豆分离蛋白、海藻酸纳与95-100份的无菌水混合均匀后、真空排气,即可得到所述防虫剂。
进一步的,步骤(2)中,所述沙藏法为:将黄皮种子与经过消毒洗净且含水率为55-60%的河沙以体积比1:2混合均匀后,于0-2℃下贮藏。
进一步的,步骤(3)中,所述光照强度为730-750lx。
进一步的,步骤(3)中,所述超声波辅助处理的功率为500W、频率为25kHz。
进一步的,步骤(4)中,所述播种至出芽期间,控制所述芽床温度为25-28℃,芽床周围的空气含氧量为12%以上。
综上所述,由于采用了上述技术方案,本发明的有益效果是:
本发明黄皮果的育苗方法从选种、种子处理、种子催芽和种子育苗这四个方面入手,结合防虫剂、催芽剂和育苗基质这三种特质的物质,为黄皮种子提供均衡、充足、长效的营养来源,有效降低了病虫害和认为操作对黄皮种子的影响,有效促进了黄皮种子的萌发和生长,出芽时间短且出芽率高,同时出芽后生长速度快、幼苗健壮。
【具体实施方式】
下面将结合具体实施例来对本发明作进一步的说明。
实施例1
1.育苗前准备
1)防虫剂的制备
(1)按重量份计,称取下列原料组分:南瓜子2份、川楝子1份、白苏叶2份、马桂花3份、羧甲基壳聚糖3份、大豆分离蛋白1份和海藻酸纳0.2份;
(2)将称取好的南瓜子、川楝子、白苏叶和马桂花混合粉碎过60目筛后,加入乙醇进行提取、过滤得滤液,将所述滤液旋蒸、浓缩至密度为1.26,得提取剂;将所述提取剂和溶解后的羧甲基壳聚糖、大豆分离蛋白、海藻酸纳与95份的无菌水混合均匀后、真空排气,即可得到所述防虫剂,备用。
2)催芽剂的制备
(1)按重量份计,称取下列原料组分:磷酸三钠4份、磷酸二氢钾1份、硝酸钾1份、尿素0.5份、鸡血藤2份、三加皮2份、透骨草1份、山茱萸1份、萘乙酸钠0.1份、赤霉素0.2份、微量元素0.1份、甜菜碱0.03份、天冬氨酸0.2份和葡萄糖1份;
(2)将称取好的原料组分经过提取、混合、充分溶解后,即可得到所述催芽剂,备用。
3)芽床基质的制备
(1)按重量份计,称取下列原料组分:河沙20份、蛭石4份、草炭3份、水晶泥3份、椰粉纤维3份、锯末1份、马粪3份、鸡粪1份、过磷酸钙1份、尿素1份、硝酸钾1份、中草药2份和有益微生物1.5份;其中,所述中草药按重量份计,主要由川楝子1份、白苏叶2份、马桂花2份和三加皮3份经过粉碎混合制成;
(2)将称取好的原料组分经过粉碎、混合发酵和干燥,即可得到所述芽床基质,备用。
2.将上述制备好的防虫剂、催芽剂和芽床基质按以下步骤应用于本发明黄皮果的育苗中:
(1)黄皮种子选择:在8月采收8-9成熟的黄皮果,去掉果皮果肉后得到黄皮种子;
(2)种子处理:先将所述黄皮种子置于阴凉处晾干表面,然后将晾干的黄皮种子置于38℃下烘至种子含水量为62%,再采用防虫剂对黄皮种子进行均匀喷涂后晾干,最后将黄皮种子与经过消毒洗净且含水率为55%的河沙以体积比1:2混合均匀后,于0℃下沙藏;
(3)种子催芽:将贮藏后的种子先于40℃下烘35min,然后在功率为500W、频率为25kHz的超声波的辅助下,于30℃的无菌水下浸泡15min后,捞出;将无菌水浸泡过的种子浸入催芽剂中,先采用功率为500W、频率为25kHz的超声波辅助处理30min,再继续自然浸泡2h,捞出,于强度为730lx的光照下放置2h;
(4)播种育苗:将催芽后的种子播种于铺设基质的芽床中,且种子埋藏深度为2cm;播种后,每天采用强度为850lx的光照12h,控制所述芽床的含水率为60%、温度为25℃,且保持芽床周围的空气含氧量为12%以上,直到种子出芽后,继续培育至长成12cm高的幼苗,即可得到黄皮果苗。
实施例2
1.育苗前准备
1)防虫剂的制备
(1)按重量份计,称取下列原料组分:南瓜子3份、川楝子3份、白苏叶2.5份、马桂花4份、羧甲基壳聚糖5份、大豆分离蛋白1.3份和海藻酸纳0.4份;
(2)将称取好的南瓜子、川楝子、白苏叶和马桂花混合粉碎过60目筛后,加入乙醇进行提取、过滤得滤液,将所述滤液旋蒸、浓缩至密度为1.30,得提取剂;将所述提取剂和溶解后的羧甲基壳聚糖、大豆分离蛋白、海藻酸纳与98份的无菌水混合均匀后、真空排气,即可得到所述防虫剂,备用。
2)催芽剂的制备
(1)按重量份计,称取下列原料组分:磷酸三钠7份、磷酸二氢钾1.5份、硝酸钾1.3份、尿素0.7份、鸡血藤3份、三加皮3份、透骨草2份、山茱萸1.3份、萘乙酸钠0.4份、赤霉素0.3份、微量元素0.14份、甜菜碱0.05份、天冬氨酸0.4份和葡萄糖1.5份;
(2)将称取好的原料组分经过提取、混合、充分溶解后,即可得到所述催芽剂,备用。
3)芽床基质的制备
(1)按重量份计,称取下列原料组分:河沙24份、蛭石5份、草炭5份、水晶泥4份、椰粉纤维3.5份、锯末2份、马粪5份、鸡粪2份、过磷酸钙1.8份、尿素1.3份、硝酸钾1.2份、中草药3.5份和有益微生物1.9份;其中,所述中草药按重量份计,主要由川楝子1.4份、白苏叶4份、马桂花3份和三加皮5份经过粉碎混合制成;
(2)将称取好的原料组分经过粉碎、混合发酵和干燥,即可得到所述芽床基质,备用。
2.将上述制备好的防虫剂、催芽剂和芽床基质按以下步骤应用于本发明黄皮果的育苗中:
(1)黄皮种子选择:在8月采收8-9成熟的黄皮果,去掉果皮果肉后得到黄皮种子;
(2)种子处理:先将所述黄皮种子置于阴凉处晾干表面,然后将晾干的黄皮种子置于39℃下烘至种子含水量为64%,再采用防虫剂对黄皮种子进行均匀喷涂后晾干,最后将黄皮种子与经过消毒洗净且含水率为57%的河沙以体积比1:2混合均匀后,于1℃下沙藏;
(3)种子催芽:将贮藏后的种子先于42℃下烘38min,然后在功率为500W、频率为25kHz的超声波的辅助下,于33℃的无菌水下浸泡18min后,捞出;将无菌水浸泡过的种子浸入催芽剂中,先采用功率为500W、频率为25kHz的超声波辅助处理35min,再继续自然浸泡2.5h,捞出,于强度为740lx的光照下放置3h;
(4)播种育苗:将催芽后的种子播种于铺设基质的芽床中,且种子埋藏深度为2.5cm;播种后,每天采用强度为860lx的光照13h,控制所述芽床的含水率为63%、温度为27℃,且保持芽床周围的空气含氧量为12%以上,直到种子出芽后,继续培育至长成14cm高的幼苗,即可得到黄皮果苗。
实施例3
1.育苗前准备
1)防虫剂的制备
(1)按重量份计,称取下列原料组分:南瓜子5份、川楝子4份、白苏叶4份、马桂花5份、羧甲基壳聚糖6份、大豆分离蛋白2份和海藻酸纳0.5份;
(2)将称取好的南瓜子、川楝子、白苏叶和马桂花混合粉碎过60目筛后,加入乙醇进行提取、过滤得滤液,将所述滤液旋蒸、浓缩至密度为1.32,得提取剂;将所述提取剂和溶解后的羧甲基壳聚糖、大豆分离蛋白、海藻酸纳与100份的无菌水混合均匀后、真空排气,即可得到所述防虫剂,备用。
2)催芽剂的制备
(1)按重量份计,称取下列原料组分:磷酸三钠8份、磷酸二氢钾2份、硝酸钾2份、尿素1份、鸡血藤5份、三加皮5份、透骨草3份、山茱萸2份、萘乙酸钠0.5份、赤霉素0.4份、微量元素0.2份、甜菜碱0.06份、天冬氨酸0.5份和葡萄糖2份;
(2)将称取好的原料组分经过提取、混合、充分溶解后,即可得到所述催芽剂,备用。
3)芽床基质的制备
(1)按重量份计,称取下列原料组分:河沙25份、蛭石7份、草炭6份、水晶泥5份、椰粉纤维5份、锯末3份、马粪6份、鸡粪3份、过磷酸钙2份、尿素1.5份、硝酸钾1.5份、中草药4份和有益微生物2份;其中,所述中草药按重量份计,主要由川楝子3份、白苏叶5份、马桂花5份和三加皮7份经过粉碎混合制成;
(2)将称取好的原料组分经过粉碎、混合发酵和干燥,即可得到所述芽床基质,备用。
2.将上述制备好的防虫剂、催芽剂和芽床基质按以下步骤应用于本发明黄皮果的育苗中:
(1)黄皮种子选择:在8月采收8-9成熟的黄皮果,去掉果皮果肉后得到黄皮种子;
(2)种子处理:先将所述黄皮种子置于阴凉处晾干表面,然后将晾干的黄皮种子置于41℃下烘至种子含水量为65%,再采用防虫剂对黄皮种子进行均匀喷涂后晾干,最后将黄皮种子与经过消毒洗净且含水率为60%的河沙以体积比1:2混合均匀后,于2℃下沙藏;
(3)种子催芽:将贮藏后的种子先于43℃下烘40min,然后在功率为500W、频率为25kHz的超声波的辅助下,于35℃的无菌水下浸泡20min后,捞出;将无菌水浸泡过的种子浸入催芽剂中,先采用功率为500W、频率为25kHz的超声波辅助处理40min,再继续自然浸泡3h,捞出,于强度为750lx的光照下放置3h;
(4)播种育苗:将催芽后的种子播种于铺设基质的芽床中,且种子埋藏深度为2.5cm;播种后,每天采用强度为870lx的光照14h,控制所述芽床的含水率为65%、温度为28℃,且保持芽床周围的空气含氧量为12%以上,直到种子出芽后,继续培育至长成15cm高的幼苗,即可得到黄皮果苗。
对比例1:贮藏之前没有采用本发明的防虫剂进行喷涂,其余步骤均与本发明实施例3相同。
对比例2:催芽过程没有采用本发明的催芽剂进行处理,而采用的现有的催芽剂,其余步骤均与本发明实施例3相同。
对比例3:催芽过程中没有采用本发明的基质进行育苗,而是采用现有的基质,其余步骤均与本发明实施例3相同。
空白对比例:整个育苗过程均采用现有的育苗方法。
在其余条件一致的情况下,每组选择100粒种子进行育苗,统计育苗过程中种子的出芽情况和出芽后的生长情况,结果见下表:
表1各组黄皮种子的出芽情况
组别 实施例3 对比例1 对比例2 对比例3 空白对比例
播种到出芽的时间(d) 5 6 8 9 12
出芽率(%) 96 86 84 85 71
由表1可知,出芽时间天数:实施例3<对比例1-3<空白对比例,出芽率:实施例3>对比例1-3>空白对比例,说明本发明的育苗方法可有效缩短黄皮种子的出芽时间且出芽率高,同时,本发明的防虫剂、催芽剂和基质对黄皮种子的出芽速度和出芽率均具有一定的促进作用。
表2各组种子出芽后培育至幼苗阶段的成活率及生长情况
由表2可知,成活率和平均径粗均为:实施例3>对比例1-3>空白对比例,说明本发明的育苗方法可有效促进黄皮芽的成活和生长速度,成活率高且生长健壮,同时,本发明的防虫剂、催芽剂和基质对黄皮芽的的成活和生长速度均具有一定的促进作用。
上述说明是针对本发明较佳可行实施例的详细说明,但实施例并非用以限定本发明的专利申请范围,凡本发明所提示的技术精神下所完成的同等变化或修饰变更,均应属于本发明所涵盖专利范围。

Claims (6)

1.一种黄皮果的育苗方法,其特征在于,包括以下步骤:
(1)黄皮种子选择:在8月采收8-9成熟的黄皮果,去掉果皮果肉后得到黄皮种子;
(2)种子处理:先将所述黄皮种子置于阴凉处晾干表面,然后将晾干的黄皮种子置于38-41℃下烘至种子含水量为62-65%,再采用防虫剂对黄皮种子进行均匀喷涂后晾干,最后用沙藏法进行贮藏;所述防虫剂按重量份计,包括下列原料组分:南瓜子2-5份、川楝子1-4份、白苏叶2-4份、马桂花3-5份、羧甲基壳聚糖3-6份、大豆分离蛋白1-2份和海藻酸纳0.2-0.5份;
(3)种子催芽:将贮藏后的种子先于40-43℃下烘35-40min,然后在超声波的辅助下,于30-35℃的无菌水下浸泡15-20min后,捞出;将无菌水浸泡过的种子浸入催芽剂中,先采用超声波辅助处理30-40min,再继续自然浸泡2-3h,捞出,于光照下放置2-3h;
(4)播种育苗:将催芽后的种子播种于铺设基质的芽床中,且种子埋藏深度为2-2.5cm;播种后,每天采用强度为850-870lx的光照12-14h,且控制所述芽床的含水率为60-65%直到种子出芽后,继续培育至长成12-15cm高的幼苗,即可得到黄皮果苗;
其中,所述催芽剂按重量份计,包括下列原料组分:磷酸三钠4-8份、磷酸二氢钾1-2份、硝酸钾1-2份、尿素0.5-1份、鸡血藤2-5份、三加皮2-5份、透骨草1-3份、山茱萸1-2份、萘乙酸钠0.1-0.5份、赤霉素0.2-0.4份、微量元素0.1-0.2份、甜菜碱0.03-0.06份、天冬氨酸0.2-0.5份和葡萄糖1-2份;
所述芽床的基质按重量份计,包括下列原料组分:河沙20-25份、蛭石4-7份、草炭3-6份、水晶泥3-5份、椰粉纤维3-5份、锯末1-3份、马粪3-6份、鸡粪1-3份、过磷酸钙1-2份、尿素1-1.5份、硝酸钾1-1.5份、中草药2-4份和有益微生物1.5-2份;其中,所述中草药按重量份计,主要由川楝子1-3份、白苏叶2-5份、马桂花2-5份和三加皮3-7份经过粉碎混合制成。
2.根据权利要求1所述一种黄皮果的育苗方法,其特征在于,步骤(1)中,所述防虫剂的制备方法为:将所述南瓜子、川楝子、白苏叶和马桂花混合粉碎过60目筛后,加入乙醇进行提取、过滤得滤液,将所述滤液旋蒸、浓缩至密度为1.26-1.32,得提取剂;将所述提取剂和溶解后的羧甲基壳聚糖、大豆分离蛋白、海藻酸纳与95-100份的无菌水混合均匀后、真空排气,即可得到所述防虫剂。
3.根据权利要求1所述一种黄皮果的育苗方法,其特征在于,步骤(2)中,所述沙藏法为:将黄皮种子与经过消毒洗净且含水率为55-60%的河沙以体积比1:2混合均匀后,于0-2℃下贮藏。
4.根据权利要求1所述一种黄皮果的育苗方法,其特征在于,步骤(3)中,所述光照强度为730-750lx。
5.根据权利要求1所述一种黄皮果的育苗方法,其特征在于,步骤(3)中,所述超声波辅助处理的功率为500W、频率为25kHz。
6.根据权利要求1所述一种黄皮果的育苗方法,其特征在于,步骤(4)中,所述播种至出芽期间,控制所述芽床温度为25-28℃,芽床周围空气的含氧量为12%以上。
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CN109601357A (zh) * 2019-01-25 2019-04-12 湖南省森林植物园 一种黑老虎种子育苗方法
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