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Qi Zhou and Juan Carlos Melgar

, processing, and tissue analysis. The total amount of fresh weight (FW) removed at each nutrient removal event was recorded to calculate the total amount of nutrients removed annually and the percentage partitioned to each organ. Samples of the following

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Cary J. Hebert, Darren H. Touchell, Thomas G. Ranney, and Anthony V. LeBude

organogenesis and somatic embryogenesis in white ash ( Fraxinus americana L.) Plant Cell Tissue Organ Cult. 31 21 29 Comai, L. 2005 The advantages and disadvantages of being polyploid Nat. Rev. Genet. 6 836 846

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Todd C. Einhorn, Debra Laraway, and Janet Turner

address this question and determine the effects of crop load on vegetative and reproductive development of ‘Sweetheart’/‘Mazzard’ trees. Materials and methods Plant material and experimental design. Nine-year-old ‘Sweetheart’/‘Mazzard’ sweet cherry trees

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Chao Gao, Rui Yang, and Deyi Yuan

). Based on the sections of the apical and intermediate positions of ovules, a complete structure of female reproductive organs was found in the embryo sac: The two synergid cells appeared pear shaped, and the chalazal end of the ovule contained large

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Alisson P. Kovaleski, Jeffrey G. Williamson, James W. Olmstead, and Rebecca L. Darnell

was used to create a scale describing inflorescence bud development. The scale ranged from 1 (completely vegetative) to 5 (complete formation of all floral organs) and development of the scale is fully described in the presentation of Figure 1 . A

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Ming-Chung Liu and Der-Ming Yeh

for double-flowered amaryllis was first reported by McCann (1937) . Additional tepal-like structures in double-flowered amaryllis apparently result from transformations of both male and female reproductive structures ( Bell, 1977 ). Double

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Lu Zhang, You-biao Hu, Hua-sen Wang, Sheng-jun Feng, and Yu-ting Zhang

reproductive organs are the ones to be harvested, then the growth of vegetative organs considerably influences the growth of the reproductive organs because most of the nutrients needed for the formation and development of reproductive organs are supplied by

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Suphasuk Pradubsuk and Joan R. Davenport

‘Concord’). In addition, size and seasonal duration of vegetative, reproductive, and storage sinks might vary with vine age ( Borchert, 1976 ), cultivars ( Colugnati et al., 1995 ), and variable weather conditions ( Robinson, 2005 ). The goal of ‘Concord

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Hongli Wei, Chao Gao, Jie Qiu, Li Long, Biao Wang, Lu Yang, and Yang Hu

and fruit quality and can provide relevant information to reveal the systematic relationships of species groups ( Tucker, 1996 ). Studies on the development of floral organs help clarify plant reproductive processes, which may lay a foundation for

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C. Yang, D.Y. Jiao, Z.Q. Cai, H.D. Gong, and G.Y. Li

throughout a growing season. Mean values with a different letter indicate significant differences at P < 0.05. As a wind-dispersed species with well-developed reproductive organs (i.e., flower and fruit numbers; Jiao et al., 2012 ), seed production in P