【作者】 秦芳；

【导师】 薛进军；

【作者基本信息】 广西大学 ， 植物营养学， 2004， 硕士

【摘要】 对罗汉果砧木的选择，砧木种子萌发条件，嫁接技术及不同罗汉果苗生长动态的观察进行了比较系统的研究和探讨，以期充分利用砧木特性为解决罗汉果生产上普遍存在的病虫害、提高罗汉果产量和质量及扩大栽培区域提供理论和实践依据。主要结论如下： 1、瓜萎嫁接成活率（65.0％）明显高于南瓜、丝瓜、苦瓜、葫芦砧木，其成活率分别为20.0％，35.0％，30.0％，27.5％。 2、培养基质处理瓜蒌砧木：蚯蚓粪处理的平均株高为34.16cm，平均真叶数为10.42张叶均明显大于接菌种地表、摩西、根内、对照；30％蚯蚓粪含量的培养基质处理瓜蒌砧木出苗数最多为24。40％蚯蚓粪培养基质含量的处理瓜蒌砧木平均株高最高为6.16cm。 3、嫁接方法试验表明：瓜蒌砧低位嫁接成活率高于高位嫁接，其分别为A 30％25％；B 42.5％ 32.5％；C 35％30％；D 57.5％47.5％；E 22.5％20％。劈接用牙膏皮固定的成活率较高；时间上以4月、6月、11月的嫁接成活率较高。 4、瓜蒌种子先破壳再浸种，75mg／kgABT₃处理的发芽率，平均根数和平均根长均为最高的。而75mg／kgABT₃处理瓜萎胚根，平均根数最高为5.79条，50mg／kgABT3处理胚根平均根长最高达2.40cm；植物生长调节物质处理中，10mg／kg、15mg／kgIBA，10mg／kgNAA，10mg／kg6-BA，羊毛脂能显著提高嫁接成活率；接穗生长情况较好。广西大学硕士学位论文 5、嫁接苗的生长势比组培苗和薯块苗要强;而且嫁接苗结果数比较多，为125.4个琳，果实以大、中果为主，其中大果占26.47%，中果占47.06%，小果占14.71%，外果占11 .76%。更多还原

【Abstract】 In this dissertation, the rootstock option, rootstock seeds geronintion , grafting technology and the rigorous growth of grafted seeding are studied. Expected using the characteristic of rootstock in order to solving the Siraitia producing widespreadly esse of diseases and insect, increasing Siraitia’s the yield and the quantity and expend plant district provide the basis of theories and practice. The main conclusions as follows:1. Trichosanthes grafting Survival rate (65%) is significantly higher than Squash, Sponge tocvel, Bitter nelou,Gourd, their survival is respectivly 20.0%, 35.0%, 30.0%, 27.5 %.2. That plant height, euphylis total growth of Trichosanthes rootstock treating with earthworm cast is 34.16cm, 10.42; It is distinctly higher than treating rootstock with Glomus epigaeum, Glomus mosseae, Glomus intraradices and CK. The same of Glomus epigaeum is second(25.25cm,9.45); The number of germination treating Trichosanthes’s seeds with 30% earthworm cast is the highest( 24.0), but the average plant height of treating Trichosanthes with 40% earthworm cast is the highest (6.16cm).3. Result of grafting method trial shows: Trichosanthes’s lower-grafting Survival rate is better than the same treatment highter’s, Their survival rate is respectivly A 30.0%, 25.0; B 42.5%, 32.5%; C 35.0%, 30.0%; D 57.5%, 47.5%; E 22.5%, 20.0%; The Survival rate of cleft grafting and toothpaste’s hull is higher than that of other way; In April, Jun, November, the Survival rate is higher than that in other grafting month.4. The average percentage of germination, the average root number and the average root length treating Trichosanthes’s seeds with 75mg/kg ABT3 are the highest, split is 88.0%, 5.26, 4.86cm; But the average root number of treating Trichosanthes radicle with 75mg/kg ABT3 is the best( 5.79). the average root length treating radicle with 50mg/kg ABT3 is the best( 2.40cm). Treating with plant-growth regulator 10mg/kg, 15mg/kg IBA, 10mg/kg NAA, 10mg/kg 6-BA and lanolin can distinctly survival rate and their scions growth is better.5. The grafting seedings of rigorous growth is more quickly than tissue culture seeding and sprout seedling. The bearing number of grafting seedings is 125.4. The size of fruit is mostly big, intermediate fruit. Big fruit is 26.4%, intermediate fruit is 47.06%, small fruit is 14.71% , smaller fruit is 11.76%.更多还原