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Cary A. Mitchell

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Paul E. Read

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W. Mersie, T. Mebrahtu, and M. Rangappa

Plant introductions of Phaseolus vulgaris L. were grown from seed in a growth chamber and exposed to 0, at 0.6 μl·liter-1 for 2 hours. Plants were assessed for their response to O3 by evaluating percent leaf injury. Of the 410 introductions tested. 17 insensitive. 370 sensitive. and 23 highly sensitive plant introductions were identified.

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Paul Lyrene

An Introduction to Plant Breeding . Jack Brown and Peter Caligari. 2008. Blackwell Publishing, 9600 Garsington Road, Oxford OX4 2DQ, UK. 209 p. $69.00, paperback. ISBN: 978-1-4051-3344-9. I really wanted to like this book. Well-written books

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Benjamin L. Campbell, Julie H. Campbell, and Joshua P. Berning

the gap in the literature by examining the impact of GMO-free labeling on turfgrass labeling introductions—notably, on market share, demand, and revenue. We hypothesize that a large percentage of the market will prefer a non-GMO-labeled turfgrass. At

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Joseph N. Wolukau, Xiao-Hui Zhou, Ying Li, Yong-Bin Zhang, and Jin-Feng Chen

in plant introduction 140471 to be near immunity. On the contrary, McGrath et al. (1993) contends no sufficient resistance to GSB is available in melon. Furthermore, resistance in plant introduction 140471 has recently been described as variable

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W. Patrick Wechter, Amnon Levi, Kai-Shu Ling, Chandrasekar Kousik, and Charles C. Block

plates and grown for an additional 24 h for use in the described assays. Table 1. Acidovorax avenae subsp. citrulli isolates used for study. Plant material. Seeds of PIs were obtained from the USDA, ARS, North Central Regional Plant Introduction

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W. Patrick Wechter, Mark W. Farnham, J. Powell Smith, and Anthony P. Keinath

resistance that might be incorporated into improved cultivars of these species. Materials and Methods Plant materials. B. juncea and B. rapa accessions (Plant Introductions) were obtained from the USDA, ARS, North Central Regional Plant

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Zhang Zhiming

Due to the large area and the complex topography and climate. a great deal of wild ornamental plants are still hidden in the depth of forests and on the highland plateaus--places difficult to approach by man. In the Three N Regions only, there are 51 species of Rhododendron, 27 of Lilium, 83 of Rosa, 30 of Iris, 40 of Clematis, etc., yet to be explored and utilized. Aiming at this, we made extensive introduction of plants in general and intensive introduction of certain families and genera in particular, with good results. At present we have in our living collection 12 species of Clematis, 24 of Rosa, 13 of Lilium, 10 of Iris, 8 of Tulip, 6 of Aquilegia, 10 of Thalictrum, 20 of Gentiana, 80 of ferns, 40 of Begonia, 50 of the Araceae. Seed germination tests, micropropagation, breeding for new varieties and other experiments and researches have been carried out on many of these plant groups.

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Chandrasekar S. Kousik, Amnon Levi, Kai-Shu Ling, and W. Patrick Wechter

of plant introductions (PI) of bottle gourd ( Lagenaria siceraria ) for resistance to powdery mildew caused by Podosphaera xanthii z . Fig. 1. Frequency of distribution of the original screening of 234 bottle gourd ( Lagenaria