摘要
以温室内宁杞1号、宁杞7号新梢为试验材料,测定其生长速率及始蕾节位,同时采用石蜡切片技术观察研究宁夏枸杞新梢花芽分化情况。结果表明,在温室特定环境下盆栽宁杞1号新梢比宁杞7号提前10 d停止生长,且平均生长速率达到0.73 cm/d。宁杞1号新梢生长63 d、宁杞7号生长83 d时,65%的枝条停止生长。对始蕾节位的调查发现宁杞1号较宁杞7号的始蕾节位低。对宁夏枸杞整个枝条进行石蜡制片后,确定枸杞花芽分化基本经历4个时期,即萼片原基分化期、花冠原基分化期、雄蕊原基分化期、雌蕊原基分化期。
Taking“Ningqi”No.1 and“Ningqi”No.7 in greenhouse as test materials whose growth rate and joint position of early bud were determined,and shoot growth quantity and floral bud differentiation of Lycium bararum L.by paraffin section were observed.The result showed that the shoots of potted“Ningqi”No.1 in greenhouse stopped growing 10 days ahead than“Ningqi”No.7,and average growth rate of“Ningqi”No.1 was 0.73 cm/d.The shoots of“Ningqi”No.1 and“Ningqi”No.7 grew for 63 days and 83 days respectively,and then 65%of them stopped growing.The joint position of early bud of“Ningqi”No.1 was lower than that of“Ningqi”No.7.The paraffin section of the whole branch of Lycium bararum L.showed that floral bud differentiation included 4 primordium differentiation stages of sepal,corolla,stamen and pistil.
作者
张波
秦垦
戴国礼
何昕孺
ZHANG Bo(Wolfberry Engineering Technology Institute,Ningxia Academy of Agriculture and Forestry Sciences,Yinchuan,Ningxia 750002)
出处
《宁夏农林科技》
2018年第3期14-15,64,共3页
Journal of Ningxia Agriculture and Forestry Science and Technology
基金
宁夏农林科学院科技先导资金项目(NKYJ-16-10)
宁夏自然科学基金项目(NZ16101)
一二三产业融合发展科技创新示范项目(YES-16-05)
关键词
宁夏枸杞
新梢
花芽分化
Lycium bararum L.
Shoots
Floral bud differentiation
作者简介
张波(1984-),女,宁夏中宁人,助理研究员,主要从事枸杞育种研究。;通讯作者:秦垦(1971-),男,陕西永寿人,研究员,研究方向:林木遗传育种。
