Articles
STUDY ON THE ANATOMICAL CHARACTERISTICS OF PISTIL ABORTION OF DAVID GROUP OF ORNAMENTAL PEACH
Article number
977_31
Pages
265 – 268
Language
English
Abstract
Flower bud differentiation on three cultivars of David group of ornamental peach (Prunus persica × Prunus davidiana), which are the pistil abortion cultivar Baihua Shanbitao, and two low-yield cultivars Pinxia and Pinhong, were studied by the paraffin method.
The high fruit yield cultivar Jiangtao was the control.
The results showed that pistils of the three studied cultivars developed normally at the initial stage of flower bud differentiation, however, compared with the control cultivar, different types of pistil abortion occurred at the stage of sex cell differentiation, including a thin and deformed style, the stigmatic surface was depauperate and ovule primordial hypoevolutism.
It was concluded that the pistil abortion period of Baihua Shanbitao, Pinxia, and Pinhong started at the sex cell differentiation stage after the formation of the ovary. Pinxia and Pinhong are the F1 progeny of Baihua Shanbitao as their pollen parent, and both inherited the characteristics of pistil abortion from their male parent.
The high fruit yield cultivar Jiangtao was the control.
The results showed that pistils of the three studied cultivars developed normally at the initial stage of flower bud differentiation, however, compared with the control cultivar, different types of pistil abortion occurred at the stage of sex cell differentiation, including a thin and deformed style, the stigmatic surface was depauperate and ovule primordial hypoevolutism.
It was concluded that the pistil abortion period of Baihua Shanbitao, Pinxia, and Pinhong started at the sex cell differentiation stage after the formation of the ovary. Pinxia and Pinhong are the F1 progeny of Baihua Shanbitao as their pollen parent, and both inherited the characteristics of pistil abortion from their male parent.
Authors
J.Q. Fu, D.Y. Hu, Y.Y. Zhou, S.W. Zhao
Keywords
David group, ornamental peach, pistil abortion, paraffin section
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