A Study of Reproductive Growth Characteristics and Seed Germination of <i>Eucalyptus dunnii</i> Introduced in Sichuan Province

HUANG Zhen; CHEN Zhi; LI Jia-man; GUO Hong-ying

doi:10.16779/j.cnki.1003-5508.2017.03.002

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Volume 38 Issue 3

Nov. 2019

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Article Navigation > Journal of Sichuan Forestry Science and Technology > 2017 > 38(3): 6-10

HUANG Zhen, CHEN Zhi, LI Jia-man, GUO Hong-ying. A Study of Reproductive Growth Characteristics and Seed Germination of Eucalyptus dunnii Introduced in Sichuan Province[J]. Journal of Sichuan Forestry Science and Technology, 2017, 38(3): 6-10. doi: 10.16779/j.cnki.1003-5508.2017.03.002

Citation:

HUANG Zhen, CHEN Zhi, LI Jia-man, GUO Hong-ying. A Study of Reproductive Growth Characteristics and Seed Germination of Eucalyptus dunnii Introduced in Sichuan Province[J]. Journal of Sichuan Forestry Science and Technology, 2017, 38(3): 6-10. doi: 10.16779/j.cnki.1003-5508.2017.03.002

A Study of Reproductive Growth Characteristics and Seed Germination of Eucalyptus dunnii Introduced in Sichuan Province

doi: 10.16779/j.cnki.1003-5508.2017.03.002

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Sichuan Forestry Academy, Chengdu Sichuan 610081, China

Received Date: 2017-02-28

Abstract

Studying the flowering development and seed germination of introduced Eucalyptu dunnii and mastering its reproductive growth law can provide a theoretical basis for seed garden.In this study,a blooming plant growing in Zitong County was selected as the experiment subject.The results were as follows:florescence date of Eucalyptu dunnii being from Mid and late February to mid and late October.Depending on morphologic change,flowering could be divided into 6 phases:Flower bud differentiation stage,inflorescence formation stage,opercle color change stage,opercle enlargement and shedding ring formation stage,flowering period,seed development stage.The development process of the buds on the same inflorescence was basically the same,and the growth of buds near the base of the same branch was faster than that of the top buds.The development of flower buds in different positions showed a random trend.Opercle had 3 to 4 ovary cavities,the number of shriveled seeds was far more than the number of effective seeds,and on a average,each capsule containing five normal seeds could develop into seedlings.
- Eucalyptus;
- Reproductive growth;
- Flower bud differentiation;
- Pollen;
- Seed germination
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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A Study of Reproductive Growth Characteristics and Seed Germination of Eucalyptus dunnii Introduced in Sichuan Province

doi: 10.16779/j.cnki.1003-5508.2017.03.002

Sichuan Forestry Academy, Chengdu Sichuan 610081, China

Received Date: 2017-02-28

Key words:

Abstract: Studying the flowering development and seed germination of introduced Eucalyptu dunnii and mastering its reproductive growth law can provide a theoretical basis for seed garden.In this study,a blooming plant growing in Zitong County was selected as the experiment subject.The results were as follows:florescence date of Eucalyptu dunnii being from Mid and late February to mid and late October.Depending on morphologic change,flowering could be divided into 6 phases:Flower bud differentiation stage,inflorescence formation stage,opercle color change stage,opercle enlargement and shedding ring formation stage,flowering period,seed development stage.The development process of the buds on the same inflorescence was basically the same,and the growth of buds near the base of the same branch was faster than that of the top buds.The development of flower buds in different positions showed a random trend.Opercle had 3 to 4 ovary cavities,the number of shriveled seeds was far more than the number of effective seeds,and on a average,each capsule containing five normal seeds could develop into seedlings.