16 Plant Genetics and Breeding Laboratory Kazuhiro NEMOTO Assistant Professor, Ph.D. Plant genetic resources, Evaluation and genetic improvement of minor crops, Conservation genetics, Gain amaranths, Seed system In the world, there are many useful crops to solve the problem of food and nutrition in developing countries, to enrich our life, even though it is still minor or underutilized crop. We are focusing these crops. Genetic improvement and molecular analysis of grain amaranths is now our major research topics. Field works through national and international research is also important for our Lab. Theme1 Genetic improvement and molecular analysis of grain amaranths including under utilized crops A B C D A B C 写真、図 Grain amaranths are one of our target crops. We have revealed their genetic diversity, phylogenetic relationships, molecular analysis of GBSS genes etc. 写真、図 From the field study, we can find new challenges. Upper left: Burukina Faso, Lower left: Nepal, right: Nagano, Japan Theme2 Conservation genetics of local varieties; now we are focusing on Brassica vegetables such as turnip and radish using S haplotypes. Theme3 Evaluation and characterization of plant genetic resources/ Bioresource Science Division Laboratory of the management for the biological production in the high-cool zone Kanako SUZUKI Assistant Professor, Ph.D. Research keywords: Green manure Soil fertility Club root Cabbage Runner bean P uptake Our laboratory is located at Nobeyama (an altitude 1,351 m) in Nagano. We focus on use of green manures, e.g., sorghum and hairy vetch, to decrease the damages of cabbages by clubroot disease. Effect of green manures on soil fertility, and chemical, physical and biological properties will be also identified. The results in this study can contribute to develop the useful method for protecting cabbages from clubroot disease without use of high amount agrochemicals. In addition, we focus on other study themes as well (please refer the below). All studies in our lab have the same target. It is to identify the solutions for providing safer agricultural products sustainably. Bio-resource Science Division Study theme 1 Identification of the effect of green manures on decrease of clubroot in cabbage Study theme 2 Identification of the effect of in-organic or organic fertilizer application on cabbage growth and taste Study theme 3 Identification of the root function of phosphorus uptake in runner bean Good growth condition of cabbage root (left) and infected root by clubroot disease (right). Cabbages under co-application of green manure and in-organic fertilizer (left) and in-organic fertilizer sole (right). They were planted in May (above) and June (below). Green manure can help to reduce the damage by clubroot disease. 16
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