Abstract

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Title:: Cytological Study of Embryo and Endosperm Abortion in Two Seedless Grape Varieties

Author(s):: LIU Qiao; ZHANG Lihua; WANG Yuejin; ZHANG Jianxia; （College of Horticulture，Northwest Agriculture and Forestry University/State Key Laboratory of Crop Stress Biology in Arid Areas/Key Laboratory of Horticultural Plant Germplasm Resource Utilization in Northwest China/Ministry of Agriculture，Yangling，Shaanxi 712100）

Keywords:: seedless grapes; embryo abortive; endosperm abortive; paraffin section; embryo rescue; sampling period

Abstract:: Stenospermocarpic seedless grape cultivars ‘Jupiter’ and ‘Neptune’ were taken as materials，using paraffin section technique and iron vitriol hematoxylin staining，cytological observation was performed on abortion and development of ovules，endosperms and embryos in 2 stenospermocarpic seedless grapes cultivars，so as to determine the best sampling time when the cultivars were used as the embryo rescue female parents.The result showed that the embryo of ‘Jupiter’ and ‘Neptune’ abortive began to occur when 38 days and 36 days after full bloom respectively.The optimal sampling time of ‘Jupiter’ and ‘Neptune’，which were as female parents of seedless grape embryo rescue were 38 days and 36 days after full bloom respectively.