首页|芒果小孢子发育时期与花器形态的相关性

芒果小孢子发育时期与花器形态的相关性

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通过对芒果小孢子发育时期细胞学、小孢子不同发育时期花蕾形态和花药颜色等的观察,直接从花蕾或花药的形态特征来判断小孢子的发育时期.结果表明,芒果小孢子发育时期与花器外部形态变化密切相关.供试芒果品种的小孢子处于单核靠边期时,花蕾纵径为2.58~3.48 mm.花蕾横径为2.30~3.32 mm.花药长度为0.71~O.90 mm,花药宽度为O.56~0.72 mm.结果为通过观察芒果花蕾外观形态来确定花药发育时期,从而确定花药培养最佳时期所对应的选蕾标准,进而为花药单倍体培养奠定基础.
Correlation of Cytological Development Period of Mango(Mangifera indica L.) Microspore with the Morphology of Floral Organ
The cytological development of mango microspore, bud morphology at various microspore development stages, and the color of anther were observed to identify the period of microspore development directly from the morphological characteristics of buds and anther of mango. The results showed that mango microspore development was closely correlated with the change of external morphological appearance of flower organ. The flower buds were 2.58~3.48 mm in longitudinal diameter and 2.30~3.32 mm in transversal diameter, and the anthers 0.71~0.90 mm in length and 0.56~0.72 mm in width when the microspores of mango developed at the late uninuclear stage. The pollen development stage can be identified based on observation of mango external appearance of floral bud so as to define the standard of bud selection in relation with the optimal stage for anther culture. This might establish foundation for culture of anther haploid.

Mangifera indica Lmicrosporedevelopmental stageshape of floral organs

魏军亚、刘德兵、张越阳、李飞、高爱平、陈业渊

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中国热带业科学院热带作物品种资源研究所,农业部热带作物种质资源利用重点开放实验室,海南儋州,571737

海南大学园艺园林学院,海南儋州,571737

芒果 小孢子 发育时期 花器形态

农业部公益性行业(农业)科研专项经费中央级公益性科研院所基本科研业务费专项资金资助项目中国热带农业科学院引进人才科研启动项日

3-44PZS028Pzsh0801

2009

热带作物学报
中国热带作物学会

热带作物学报

CSTPCDCSCD
影响因子:0.807
ISSN:1000-2561
年,卷(期):2009.30(10)
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