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Weiping Zhong, Zhoujun Zhu, Fen Ouyang, Qi Qiu, Xiaoming Fan, and Deyi Yuan

and male inflorescence development, which could serve as baseline knowledge for future investigations of chinquapin reproduction. Materials and Methods Plant materials. Staminate catkins of Castanea henryi ‘Huali 4’ growing in Rucheng County (Hunan

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Ying Gao, Hao Liu, and Dong Pei

). Fig. 1. External morphology of walnut staminate catkins: A–F and H are the seven stages of staminate flower. ( A ) Stage 1, the catkins were oblate, only squama externally visible. ( B ) Stage 2, the catkins began to elongate and the bract became

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Xiaobo Song, Shengke Xi, Junpei Zhang, Qingguo Ma, Ye Zhou, Dong Pei, Huzhi Xu, and Jianwu Zhang

.5–13.5 cm × 2.5–5.0 cm. The margins are serrate, the apex is narrowly acuminate, and the terminal leaflets are well-developed. Terminal buds are conic and flattened. Few flowers and fruits are present. Staminate catkins are 5.0–9.0 cm. Fruits are subglobose

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Bruce W. Wood

of pistillate flowers. The number of pistillate flowers was reduced to 16% of the control by NAA and 79% of the control for BA, yet there was a 1.8-fold increase by TIBA + BA. The number of staminate catkin triads per terminal shoot was unaffected by

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M. Taylor Perkins, Anna Claire Robinson, Martin L. Cipollini, and J. Hill Craddock

week before anthesis. We collected staminate catkins from male parents, placed catkins on glass panes overnight to promote anther dehiscence, collected pollen in vials, and stored pollen at 3 °C until pollination was performed. We applied pollen to

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L.J. Grauke, Bruce W. Wood, and Marvin K. Harris

at different times (dichogamy). Male flowers are borne on staminate catkins in fascicles of three, with catkin groups formed on opposite sides of each vegetative bud, sometimes with a second pair above, borne opposite each other, at 90° to the first