Microspore developmental stage and anther length ...

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Title Microspore developmental stage and anther length influence the induction of tomato anther callus
Author(s) W. L. Summers, J. Jaramillo, Trina R. Bailey
Journal HortScience
Date 1992
Volume 27
Issue 7
Start page 838
End page 840
Abstract Anthers of L680A, Licato and Ailsa Craig tomato (Lycopersicon esculentum) were plated on Doy's basal medium 1 to determine whether microspore developmental stage and anther length influence anther callus production. Although calli were induced at all stages of anther development, anthers containing prophase I-stage microspores produced the highest frequency of calli. Fewer calli were produced as microspores approached the uninucleate and binucleate pollen stage. Callus diameter also decreased as anther development progressed. Significantly larger calli were produced from prophase I than later-stage anthers. Time of anther harvest (morning vs. afternoon) did not significantly affect callus number or diameter. Anther and flower bud length were both significantly correlated with anther developmental stage, the number of anthers producing calli, and mean calli diameter. In each case, anther length exhibited a significantly better correlation than bud length..

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