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Peter M. Hirst and David C. Ferree

In each of 3 years, vegetative spurs were sampled from l-year-old wood of `Starkspur Supreme Delicious' apple trees (Malus domestica Borkh.) growing on B.9, M.26 EMLA, M.7 EMLA, P.18, and seedling rootstocks. Mineral concentrations of spur leaves and bud apical meristems were determined, and related to spur bud development. The spur leaf P concentration decreased during the growing season each year, hut was unaffected by rootstock. Spur leaves of trees on B.9 rootstock had 30% higher Ca concentrations than trees on M.26 EMLA or seedling rootstocks. In each year, trees growing on M.26 EMLA rootstocks had the highest leaf Mg concentrations. Mineral concentrations were generally unrelated to spur leaf number, leaf area, leaf dry weight, or specific leaf weight. Phosphorus concentrations in spur bud apical meristems declined during two of the three growing seasons of the study and were unaffected by rootstock. Bud P concentration was weakly negatively related to bud diameter and bud appendage number in one year of the study. More vigorous spurs (as indicated by higher spur leaf number, leaf area, and leaf dry weight) had higher bud K levels during each year. No relationships between bud development and either spur leaf mineral concentration or bud apical meristem mineral levels were evident, suggesting that a direct role of mineral nutrition influenced by rootstock at the site of flower formation was unlikely.

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Yuxin Chen, Zishuo Zhang, Kexin Wang, Lijin Ou, and Yan Ao

flowers are wide and large; those near the center are narrow and small. The pistil, stamens, and golden hornlike appendages mutate into petals, making ‘Yan Xia’ a nonfruiting cultivar ( Fig. 2A ) ( Ao, 2016b ). The sacs on the inner small petals are

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Stephen N. Wegulo and Miguel Vilchez

. ranunculi in a lath house and in the field. Erysiphe aquilegiae var. ranunculi was identified on the basis of singly produced conidia and mycelioid appendages on ascocarps ( Braun, 1995 ). The cultivars were Belladona, Bellamosum, Blue Bird, Blue Shadow

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Lisa Keith, Tracie Matsumoto, Kate Nishijima, Marisa Wall, and Mike Nagao

cultural characteristics (i.e., size of the conidia, color and length of median cells, length and number of apical appendages, and length of basal appendage) to those described in Guba's (1961) monograph of Monochaetia and Pestalotia . Lasmenia

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Natalia R. Dolce, Ricardo D. Medina, Luis A. Mroginski, and Hebe Y. Rey

shown in the fresh pollinia for this species. It is interesting to consider here that orchids in general possess pollen tetrads collected into highly organized waxy pollinia with appendages. The pollen are tightly packed in the pollen sac and embedded in

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Eleanor W. Hoffman, Dirk U. Bellstedt, and Gerard Jacobs

-like appendages ( Fig. 3 ) that developed just above the upper intercalation on reverted shoots. Floral reversion may be related to the large number of axillary buds that sprouted with the BA application (data not presented). Diversion of resources away from the

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Sullivan Lynch, Rachel K. Johnston, Ron O. Determann, Jennifer M. Cruse-Sanders, and Gerald S. Pullman

·m −2 ·s −1 . Germination responses were evaluated at 3 weeks. Fig. 1. Symphyotrichum georgianum : ( A ) Cypsela (fruit containing a seed) showing the large pappus appendage presumed to aid in dispersal. Two seeds are examined with strong light. Cypsela

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Chen Xingwei, Thohirah Lee Abdullah, Sima Taheri, Nur Ashikin Psyquay Abdullah, and Siti Aishah Hassan

basal coalescence with five petaloid staminodes or petaloid appendages; each stamen consisted of five cordiform anthers and a filament encircling the gynoecium at the base with the corolla. Each of the five epipetalous stamens was located opposite of a

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

. Amer. Soc. Hort. Sci. 143 95 100 Zhang, D. Chen, Q. Liu, Q. Liu, F. Cui, L. Shao, W. Wu, S. Xu, J. Tian, D. 2019 Histological and cytological characterization of anther and appendage development in Asian lotus ( Nelumbo nucifera Gaertn.) Intl. J. Mol

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Carrie A. Radcliffe, James M. Affolter, and Hazel Y. Wetzstein

, inversion, and appendages Amer. J. Bot. 87 934 957 Heslop-Harrison, Y. 1981 Stigma characteristics and angiosperm taxonomy Nord. J. Bot. 1 401 420 Heslop-Harrison, Y. Shivanna, K.R. 1977 The receptive surface of the angiosperm stigma Ann. Bot. (Lond.) 41