甘蔗健康种子发芽率影响因素分析
该研究主要通过温室沙培试验,分析了甘蔗健康种子单芽材料各因素(单芽长度、不同芽位、泡水时间)及甘蔗基因型、种衣州及保存天数三种因素对甘蔗健康种子发芽率的影响。结果表明:不同浸泡时间、不同单芽长度和芽位对健康种子单芽发芽率的影响极显著。随着单芽长度的增加,发芽率有明显的提高:随着泡水时间的增加,发芽率不断降低,但各处理之间差异不显著:顶部芽位的发芽率较高,但其他芽位之间发芽率的差异不明显。甘蔗健康种子发芽率具有明显的基因型差异,其中GT28和ROC22的发芽率较高,发芽率在70%左右。种衣削包衣处可显著提高甘蔗健康种子的发芽率,与其他种衣剂相比扑力猛包衣处理的甘蔗健康种子发芽率最高,且差异显著。...
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| Published in | 广西植物 Vol. 36; no. 3; pp. 267 - 272 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
广西农业科学院 甘蔗研究所/中国农科院甘蔗研究中心/农业部甘蔗遗传改良生物技术重点实验室/广西甘蔗遗传改良重点实验室,南宁,530007%广西大学 农学院,南宁,530004
2016
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1000-3142 |
| DOI | 10.11931/guihaia.gxzw201405001 |
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| Summary: | 该研究主要通过温室沙培试验,分析了甘蔗健康种子单芽材料各因素(单芽长度、不同芽位、泡水时间)及甘蔗基因型、种衣州及保存天数三种因素对甘蔗健康种子发芽率的影响。结果表明:不同浸泡时间、不同单芽长度和芽位对健康种子单芽发芽率的影响极显著。随着单芽长度的增加,发芽率有明显的提高:随着泡水时间的增加,发芽率不断降低,但各处理之间差异不显著:顶部芽位的发芽率较高,但其他芽位之间发芽率的差异不明显。甘蔗健康种子发芽率具有明显的基因型差异,其中GT28和ROC22的发芽率较高,发芽率在70%左右。种衣削包衣处可显著提高甘蔗健康种子的发芽率,与其他种衣剂相比扑力猛包衣处理的甘蔗健康种子发芽率最高,且差异显著。随着保存天数的增加,甘蔗健康种子的发芽率不断下降,且差异显著,当保存时间超过8d时,发芽率低于60%。 |
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| Bibliography: | 45-1134/Q This study was mainly carried out to investigate single buds properties, sugarcane genotype, chemical seed coating and storage period effected on clean cane seed germination rate. An orthogonal experiment with three factors and four levels was designed to investigate the effects of single bud length ( 1, 2, 3, 4 cm), axillary bud position ( top 2nd position, middle-upper 3rd position, middle-lower 3rd position and bottom 2nd position) and the time of single buds cane immersed in the clean water (0, 12, 24 and 48 h) on clean cane seed germination rate. The germination rate of 4 sugarcane varieties (GT21, B8, GT28 and ROC22) clean seed which was coated by 8 different eight chemical seed coatings with different storage time (2, 4, 6, 8 and 10 d) was determined after 45 d planted in sandy pot in greenhouse. The result showed that single bud length, different intemodes and immersion period significantly influenced clean cane seed germination rate. The longer seed single bud obtained the higher germination |
| ISSN: | 1000-3142 |
| DOI: | 10.11931/guihaia.gxzw201405001 |