The Breeding of Thornless“ Crown of Thorns” (Euphorbia spp.)

碩士 === 國立中興大學 === 園藝學系所 === 97 === The flowering seasons of Euphorbia spp. were investigated. Beside E. millotii blossomed from September to May, E. milii‘Olympus’, E. geroldii, and Euphorbia sp. ‘Thornless’ blossomed year round. The optimum sucrose concentration in medium for pollen germination wer...

Full description

Bibliographic Details
Main Authors: Gi-Iau Wu, 吳俊瑤
Other Authors: Chien-Young Chu
Format: Others
Language:zh-TW
Online Access:http://ndltd.ncl.edu.tw/handle/56982214415698882778
id ndltd-TW-097NCHU5378016
record_format oai_dc
spelling ndltd-TW-097NCHU53780162016-04-29T04:20:03Z http://ndltd.ncl.edu.tw/handle/56982214415698882778 The Breeding of Thornless“ Crown of Thorns” (Euphorbia spp.) 無刺麒麟花(Euphorbiaspp.)雜交育種 Gi-Iau Wu 吳俊瑤 碩士 國立中興大學 園藝學系所 97 The flowering seasons of Euphorbia spp. were investigated. Beside E. millotii blossomed from September to May, E. milii‘Olympus’, E. geroldii, and Euphorbia sp. ‘Thornless’ blossomed year round. The optimum sucrose concentration in medium for pollen germination were tested. The medium containing 20% sucrose was suitable for E. geroldii pollen germination and 10% for E. milii ‘Olympus’, E. millotii and Euphorbia sp.‘Thornless’. Moreover, the optimum temperature for pollen germination of all treated ones was 25℃. The seed harvested from the cross of E. milii ‘Olympus’× Euphorbia sp. ‘Thornless’ were more than other cross combinations. The immature embryos of E. milii ‘Olympus’ × E. geroldii and E. milii ‘Supo Roek’ × E. geroldii were taken from ovaries after 7 days of crossing and could be rescued in the medium of 1/4 MS formula with better radical elongation rate. The thorns from the cross of E. milii ‘Olympus’× Euphorbia sp.‘Thornless’ progenies were less and softer. In cross of E. geroldii × E. milii ‘Olympus’, thorns of progenies were toothed but not harmful. Thorns from E. milii ‘Supo Roek’× E. geroldii progenies became softer and broken easily. Chien-Young Chu 朱建鏞 學位論文 ; thesis 58 zh-TW
collection NDLTD
language zh-TW
format Others
sources NDLTD
description 碩士 === 國立中興大學 === 園藝學系所 === 97 === The flowering seasons of Euphorbia spp. were investigated. Beside E. millotii blossomed from September to May, E. milii‘Olympus’, E. geroldii, and Euphorbia sp. ‘Thornless’ blossomed year round. The optimum sucrose concentration in medium for pollen germination were tested. The medium containing 20% sucrose was suitable for E. geroldii pollen germination and 10% for E. milii ‘Olympus’, E. millotii and Euphorbia sp.‘Thornless’. Moreover, the optimum temperature for pollen germination of all treated ones was 25℃. The seed harvested from the cross of E. milii ‘Olympus’× Euphorbia sp. ‘Thornless’ were more than other cross combinations. The immature embryos of E. milii ‘Olympus’ × E. geroldii and E. milii ‘Supo Roek’ × E. geroldii were taken from ovaries after 7 days of crossing and could be rescued in the medium of 1/4 MS formula with better radical elongation rate. The thorns from the cross of E. milii ‘Olympus’× Euphorbia sp.‘Thornless’ progenies were less and softer. In cross of E. geroldii × E. milii ‘Olympus’, thorns of progenies were toothed but not harmful. Thorns from E. milii ‘Supo Roek’× E. geroldii progenies became softer and broken easily.
author2 Chien-Young Chu
author_facet Chien-Young Chu
Gi-Iau Wu
吳俊瑤
author Gi-Iau Wu
吳俊瑤
spellingShingle Gi-Iau Wu
吳俊瑤
The Breeding of Thornless“ Crown of Thorns” (Euphorbia spp.)
author_sort Gi-Iau Wu
title The Breeding of Thornless“ Crown of Thorns” (Euphorbia spp.)
title_short The Breeding of Thornless“ Crown of Thorns” (Euphorbia spp.)
title_full The Breeding of Thornless“ Crown of Thorns” (Euphorbia spp.)
title_fullStr The Breeding of Thornless“ Crown of Thorns” (Euphorbia spp.)
title_full_unstemmed The Breeding of Thornless“ Crown of Thorns” (Euphorbia spp.)
title_sort breeding of thornless“ crown of thorns” (euphorbia spp.)
url http://ndltd.ncl.edu.tw/handle/56982214415698882778
work_keys_str_mv AT giiauwu thebreedingofthornlesscrownofthornseuphorbiaspp
AT wújùnyáo thebreedingofthornlesscrownofthornseuphorbiaspp
AT giiauwu wúcìqílínhuāeuphorbiasppzájiāoyùzhǒng
AT wújùnyáo wúcìqílínhuāeuphorbiasppzájiāoyùzhǒng
AT giiauwu breedingofthornlesscrownofthornseuphorbiaspp
AT wújùnyáo breedingofthornlesscrownofthornseuphorbiaspp
_version_ 1718252423726759936