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Yeh-Jin Ahn and Grace Qianhong Chen

(day/night) photoperiod with light supplemented by metal halide lighting at a photon flux density of 1000 to 1250 μmol·m −2 ·s −1 . Transparent plastic covers were placed over the plantlets for the first 2 weeks for acclimatization. Histological

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Jenny L. Bolivar-Medina, Camilo Villouta, Beth Ann Workmaster, and Amaya Atucha

) uprights were tagged in the field according to the corresponding bud width sizes studied: large (L; >1.0 mm); medium (M; 0.6–1.0 mm); and small (S; ≤0.5 mm). No large buds were found on fruiting uprights (FL), represented by the “X” symbol. Histological

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Qing Xu, Shi-Rong Guo, He Li, Nan-Shan Du, Sheng Shu, and Jin Sun

, and cucumber seedlings were used as the scion. Histological aspects, antioxidant enzyme activities, phenylpropanoid contents, and chlorophyll (Chl) fluorescence in the early developmental stages of grafted or nongrafted seedlings were measured to

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Zhiyong Hu, Min Zhang, Qigen Wen, Jie Wei, Hualin Yi, Xiuxin Deng, and Xianghua Xu

the average number of pollen grains per anther ( Chen et al., 2004 ). Histological analysis. Both the wild-type and the mutant flower buds were fixed overnight in 5 formalin : 5 acetic acid : 90 alcohol [FAA (by volume)] at 4 °C. Fixed flower

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I-Ling Lai, Chih-Wan Lin, Tsai-Yu Chen, and Wei-Hsin Hu

regeneration. Medium containing half-strength MS supplemented with 2 μM BA and 0.8 μM NAA after 8 weeks of culture. Historesin sections and SEM. Histological studies showed that morphogenesis gradually changed after the initiation of the culture in 1/2 MS

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Caixi Zhang, Kenji Tanabe, Hiroko Tani, Hiromitsu Nakajima, Minori Mori, and Emi Sakuno

, 32, 42, 52, 62, 72, 87, 102, 117, 137, 157, 177, and 210 DAA for measurement of fresh fruit weight, histological examination of fruit, and GA analysis. Immediately after collection, the samples were frozen in liquid N 2 and kept in sealed plastic

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Nittaya Chookoh, Yi-Tien Chiu, Chen Chang, Wei-Hsin Hu, and Ting-En Dai

the culture period. After 16 weeks of culture, PLB induction rate, necrotic explant rate, and the number of PLBs per explant were recorded. Cultures were examined and photographed with a stereozoom microscope (SZH; Olympus, Tokyo, Japan). Histology of

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Gyeong Ran Do, Ju Hee Rhee, Wan Soon Kim, Yun Im Kang, In Myung Choi, Jeom Hwa Han, Hyun Hee Han, Su Hyun Ryu, and Han Chan Lee

. So, little research has been conducted on the histological visualization and localization on triploid pollen morphological features or their developmental process after the irregular distribution of chromosomes at meiosis. There is no palynological

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K.R. Maluea, R.W Holton, S.E. Schlarbaum, E.T. Graham, and R.N. Triaiano

Cornus florida L. floral development was monitored using standard paraffin histological techniques and light microscopy. Terminal buds (putative floral buds) were collected over 6 weeks from mature landscape trees located on The Univ. of Tennessee Agricultural Campus, Knoxville. Examination of samples taken at 3- to 7-day intervals revealed variations in development representing 1- to 2-week differences between florets in a single inflorescence, florets on the same tree and florets from different trees. Floral initiation occurred before July 19th in the 2 years of this study. Floral development followed typical angiosperm stages. Florets, although small, appeared morphologically mature by early September in both years.

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Kathleen M. Bourke and Robert E. Lyons

Gaillardia pulchella is an annual wildflower with ornamental potential native to the South and Southern West part of the U. S. This experiment attempted to further describe the long day (LD) flowering requirement, approximate the length of the juvenility phase, and characterize apical events during floral initiation. Plants were transferred from short day to LD at various leaf numbers and the time to first flower was recorded from the onset of LD. A quadratic response described the data and indicated that a minimum of 19-20 expanded leaves were needed to flower most rapidly (49 days) once placed in LD. Histological results characterizing apical events will also be discussed.