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

, naturally released pollens and difficulty in pollen germination were responsible for the seedlessness of the mutant ‘Ougan’ mandarin. However, the development of mature pollen grains from the microspore mother cell (MMC) in the seedless mutant ‘Ougan

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Jiefang Wu, Danwen Fu, Jiezhen Chen, Changhe Cai, Qian Yan, and Liangxi Ou

pollen grains deposited on the stigma depends on the number of pollinator visits received by a floret during a certain period (visit rate) and the proportion of viable pollen in the pollen loads carried by the pollinators ( Dafni et al., 2005 ). Litchi is

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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

, dehisced anthers were prepared by the standard acetolysis method ( Erdtman, 1960 ) and stored at −70 °C in deep freezer. Table 1. Flow cytometric analysis and fertility of the investigated Lilium lancifolium pollen grains. Light microscopy and TEM. The

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Cevriye Mert

among walnut species and between genotypes within a given species. Each catkin may produce as many as two million pollen grains ( Forde, 1981 ). The pollen grains have a definite shape, size, color, and structure for each species, genus, and family

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Shujuan Yang, Li Peng, Han Bao, and Huiqiao Tian

center of each anther locule surrounded by four different cell layers: the epidermis, the endothecium, the middle layer, and the tapetum from the outer to the inner. The successful development of pollen grains within the anther requires active cooperation

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Dongmei Wei, Huimin Xu, and Ruili Li

) based on the periodic acid-Schiff (PAS) reaction for 30 min at room temperature as previously described by Hu and Xu (1990) . Polysaccharides and starch grains, in particular, were stained red. Sections were then counterstained with 0.3% (w/v) Sudan

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Ricardo Goenaga, Adolfo Quiles, and A. Graves Gillaspie

in the study ( Tables 4 and 5 ). The genotype × year interaction was significant ( P ≤ 0.001) for grain yield, midbloom, days to maturity, plant height, and pod length. Table 4. Grain yield of 12 cowpea genotypes grown in Isabela, PR

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Luiz A. Biasi and Patrick J. Conner

formal work on pollinizer placement has been conducted and pollinizer placement recommendations have not changed ( Krewer et al., 2000 ). Muscadine flowers have nectar glands, compact stigmas, waxy pollen grains, and a strong sweet odor, all features

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Teresa Eileen Snyder-Leiby and Shixiong Wang

. 2001 and 1 Aug. 2005 when chlorotic symptoms were present in all treatments regardless of fruit thinning method. Normal starch grains are present in chloroplasts early in the season in most treatments ( Fig. 2A–E ). Lipid bodies appear in the

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Rita de Cássia Félix Alvarez, Aline Cordeiro Taveira, Sebastião Ferreira de Lima, Larissa Pereira Ribeiro Teodoro, Job Teixeira de Oliveira, Adriano dos Santos, Erina Vitório Rodrigues, Gessi Ceccon, and Paulo Eduardo Teodoro

Cowpea [ Vigna unguiculata (L.) Walp.] is one of the most important and strategic food sources for tropical and subtropical regions of the world. Cowpea grain contains a high proportion of protein (19% to 35%) and carbohydrates (63%), with low fat