促进多用途树种Combretum molle种子萌发的研究

S. M. Andrew
{"title":"促进多用途树种Combretum molle种子萌发的研究","authors":"S. M. Andrew","doi":"10.4314/tjs.v48i4.7","DOIUrl":null,"url":null,"abstract":"Combretum molle R. Br. ex G. Don (Combretaceae) is a highly valued indigenous multipurpose tree species that has gained considerable attention in recent times due to its importance as a medicinal plant as well as an alternative species for wood and charcoal production. However, we lack adequate information on simple and appropriate methods that could be used to break its distinct seed dormancy to support domestication of wild populations apparently undergoing over exploitation and the negative impacts of deforestation. Eight pre-treatment methods involving complete removal of wing, complete removal of mesocarp, overnight soaking in cold water (24 °C) and partial removal of wing by scorching with fire, and their combinations were tested against the seed dormancy. Of all, the complete removal of mesocarp and overnight soaking in cold water followed with additional soaking in cold water for 24 h took the shortest imbibition (2 days) and germination (7 days) periods, highest germination value (76) and germination energy (80%). Similarly, the same treatment scored significantly (P < 0.05) higher cumulative germination of 72%. To obtain best germination traits, C. molle seeds should be pre-treated by removing the mesocarp and overnight soaking in cold water followed with additional soaking in cold water for 24 h, before sowing. These results have wide implications including supporting domestication and forest landscapes restoration in Tanzania. \nKeywords: Domestication; Restoration; Indigenous species; Dormancy; Lesser known species \n ","PeriodicalId":22207,"journal":{"name":"Tanzania Journal of Science","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Enhancing Germination of Seeds of a Multipurpose Tree Species Combretum molle\",\"authors\":\"S. M. Andrew\",\"doi\":\"10.4314/tjs.v48i4.7\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Combretum molle R. Br. ex G. Don (Combretaceae) is a highly valued indigenous multipurpose tree species that has gained considerable attention in recent times due to its importance as a medicinal plant as well as an alternative species for wood and charcoal production. However, we lack adequate information on simple and appropriate methods that could be used to break its distinct seed dormancy to support domestication of wild populations apparently undergoing over exploitation and the negative impacts of deforestation. Eight pre-treatment methods involving complete removal of wing, complete removal of mesocarp, overnight soaking in cold water (24 °C) and partial removal of wing by scorching with fire, and their combinations were tested against the seed dormancy. Of all, the complete removal of mesocarp and overnight soaking in cold water followed with additional soaking in cold water for 24 h took the shortest imbibition (2 days) and germination (7 days) periods, highest germination value (76) and germination energy (80%). Similarly, the same treatment scored significantly (P < 0.05) higher cumulative germination of 72%. To obtain best germination traits, C. molle seeds should be pre-treated by removing the mesocarp and overnight soaking in cold water followed with additional soaking in cold water for 24 h, before sowing. These results have wide implications including supporting domestication and forest landscapes restoration in Tanzania. \\nKeywords: Domestication; Restoration; Indigenous species; Dormancy; Lesser known species \\n \",\"PeriodicalId\":22207,\"journal\":{\"name\":\"Tanzania Journal of Science\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2022-12-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Tanzania Journal of Science\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.4314/tjs.v48i4.7\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Tanzania Journal of Science","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4314/tjs.v48i4.7","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

摘要

Combretum molle R. Br。Don (combreacaceae)是一种非常有价值的多用途本土树种,近年来由于其作为药用植物以及木材和木炭生产的替代物种的重要性而获得了相当大的关注。然而,我们缺乏足够的信息,可以使用简单和适当的方法来打破其独特的种子休眠,以支持驯化明显遭受过度开发和森林砍伐的负面影响的野生种群。研究了完全去翅、完全去中果皮、24℃冷水过夜、火灼部分去翅8种预处理方法及其组合对种子休眠的影响。其中,完全去除中果皮,冷水浸泡24 h后,吸胀期最短(2 d),萌发期最长(7 d),萌发值最高(76%),萌发能最高(80%)。相同处理的累计发芽率显著提高(P < 0.05) 72%。为获得最佳发芽性状,播种前应先去除中果皮,用冷水浸泡一夜,再用冷水浸泡24 h。这些结果具有广泛的意义,包括支持坦桑尼亚的驯化和森林景观恢复。关键词:驯化;恢复;土著物种;休眠;鲜为人知的物种
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Enhancing Germination of Seeds of a Multipurpose Tree Species Combretum molle
Combretum molle R. Br. ex G. Don (Combretaceae) is a highly valued indigenous multipurpose tree species that has gained considerable attention in recent times due to its importance as a medicinal plant as well as an alternative species for wood and charcoal production. However, we lack adequate information on simple and appropriate methods that could be used to break its distinct seed dormancy to support domestication of wild populations apparently undergoing over exploitation and the negative impacts of deforestation. Eight pre-treatment methods involving complete removal of wing, complete removal of mesocarp, overnight soaking in cold water (24 °C) and partial removal of wing by scorching with fire, and their combinations were tested against the seed dormancy. Of all, the complete removal of mesocarp and overnight soaking in cold water followed with additional soaking in cold water for 24 h took the shortest imbibition (2 days) and germination (7 days) periods, highest germination value (76) and germination energy (80%). Similarly, the same treatment scored significantly (P < 0.05) higher cumulative germination of 72%. To obtain best germination traits, C. molle seeds should be pre-treated by removing the mesocarp and overnight soaking in cold water followed with additional soaking in cold water for 24 h, before sowing. These results have wide implications including supporting domestication and forest landscapes restoration in Tanzania. Keywords: Domestication; Restoration; Indigenous species; Dormancy; Lesser known species  
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信