井冈山大学学报(自然科学版)
井岡山大學學報(自然科學版)
정강산대학학보(자연과학판)
JOURNAL OF JINGGANGSHAN UNIVERSITY(SCIENCE AND TECHNOLOGY)
2014年
2期
101-106
,共6页
周兵%蒋拥军%闫小红%王宁%刘文阳
週兵%蔣擁軍%閆小紅%王寧%劉文暘
주병%장옹군%염소홍%왕저%류문양
地理种群%紫茉莉%种子萌发%扦插
地理種群%紫茉莉%種子萌髮%扢插
지리충군%자말리%충자맹발%천삽
geographical population%Mirabilis jalapa%seed germination%cutting
为探索紫茉莉不同地理种群间繁殖特性的差异,本研究以11个不同地理总群的紫茉莉为研究对象,通过室内生物测定的方法对不同地理种群紫茉莉种子萌发及茎秆扦插繁殖特性进行了比较研究,并分析了两者之间的关系。结果表明,不同地理种群紫茉莉种子萌发特性存在差异,江苏(JS)地理种群种子萌发率和发芽势最高,分别为77.50%和72.00%,福建(FJ)地理种群种子的萌发率和广西(GX)地理种群种子的发芽势最低,分别为22.50%和3.50%。不同地理种群紫茉莉茎秆扦插繁殖特性也存在差异,北京(BJ)等8个地理种群的扦插成活率相对较高,均高于90%,而JS种群的最低,为46.67%;GX种群插穗平均生根数最大(69.83根),显著高于其它地理种群(P<0.05),重庆(CQ)种群的最低(6.57根);GX种群插穗平均根长最大,为2.74 cm,上海(SH)的最小,为1.04 cm。种子萌发率与茎秆扦插成活率间存在负相关,但没有显著性,表明紫茉莉的无性繁殖与有性繁殖间可能存在一定的权衡。本研究不仅揭示了紫茉莉的繁殖表型可塑性,也为制定更具针对性的防控措施提供了指导作用。
為探索紫茉莉不同地理種群間繁殖特性的差異,本研究以11箇不同地理總群的紫茉莉為研究對象,通過室內生物測定的方法對不同地理種群紫茉莉種子萌髮及莖稈扢插繁殖特性進行瞭比較研究,併分析瞭兩者之間的關繫。結果錶明,不同地理種群紫茉莉種子萌髮特性存在差異,江囌(JS)地理種群種子萌髮率和髮芽勢最高,分彆為77.50%和72.00%,福建(FJ)地理種群種子的萌髮率和廣西(GX)地理種群種子的髮芽勢最低,分彆為22.50%和3.50%。不同地理種群紫茉莉莖稈扢插繁殖特性也存在差異,北京(BJ)等8箇地理種群的扢插成活率相對較高,均高于90%,而JS種群的最低,為46.67%;GX種群插穗平均生根數最大(69.83根),顯著高于其它地理種群(P<0.05),重慶(CQ)種群的最低(6.57根);GX種群插穗平均根長最大,為2.74 cm,上海(SH)的最小,為1.04 cm。種子萌髮率與莖稈扢插成活率間存在負相關,但沒有顯著性,錶明紫茉莉的無性繁殖與有性繁殖間可能存在一定的權衡。本研究不僅揭示瞭紫茉莉的繁殖錶型可塑性,也為製定更具針對性的防控措施提供瞭指導作用。
위탐색자말리불동지리충군간번식특성적차이,본연구이11개불동지리총군적자말리위연구대상,통과실내생물측정적방법대불동지리충군자말리충자맹발급경간천삽번식특성진행료비교연구,병분석료량자지간적관계。결과표명,불동지리충군자말리충자맹발특성존재차이,강소(JS)지리충군충자맹발솔화발아세최고,분별위77.50%화72.00%,복건(FJ)지리충군충자적맹발솔화엄서(GX)지리충군충자적발아세최저,분별위22.50%화3.50%。불동지리충군자말리경간천삽번식특성야존재차이,북경(BJ)등8개지리충군적천삽성활솔상대교고,균고우90%,이JS충군적최저,위46.67%;GX충군삽수평균생근수최대(69.83근),현저고우기타지리충군(P<0.05),중경(CQ)충군적최저(6.57근);GX충군삽수평균근장최대,위2.74 cm,상해(SH)적최소,위1.04 cm。충자맹발솔여경간천삽성활솔간존재부상관,단몰유현저성,표명자말리적무성번식여유성번식간가능존재일정적권형。본연구불부게시료자말리적번식표형가소성,야위제정경구침대성적방공조시제공료지도작용。
To investigate the difference of the reproductive characteristics among 11 different geographical populations of Mirabilis jalapa, characteristics of seed germination and stem cutting of different populations were comparatively studied, and the relationship between them was analyzed. The results showed that, there were differences in the characteristics of the seed germination among different populations, the seed germination rate and germinative force of Jiangsu (JS) population were the highest, with the values of 77.50 and 72.00%respectively, but lowest seed germination rate (22.50%) for Fujiang (FJ) population and lowest gerninative force (3.50%) for Guangxi (GX) population. There were differences in the characteristics of stem cutting reproduction among different populations also, cutting survival rates of eight populations as Beijing (BJ) etc. were relatively high, with the values over 90%, but lowest for JS population (46.67%);the rooting number of the cutting slips for GX population was the highest (69.83 pieces), significantly higher than the others (P<0.05), the lowest for Chongqing (CQ) population (6.57 pieces);the root length of the cutting slips for GX population was the highest (2.74 cm), and the lowest for Shanghai (SH) population (1.04 cm). There was negative correlation between seed germination rates and stem cutting survival rates, without significance, which showed there perhaps was some trade-off between asexual reproduction and sexual reproduction of M. jalapa. The study not only reveals the reproductive phenotypic plasticity of M. jalapa, but also provides guiding function for specific strategies in its control.