Adaptability of tartary buckwheat (Fagopyrum tataricum) to environmental factors

苦荞麦与普通荞麦相比，具有产量高、耐寒耐旱等优点。然而，苦荞麦的研究工作是幸运的。本研究旨在阐明苦荞的生理生态特性及其变异规律，为苦荞的进一步开发利用和推广栽培提供理论依据。对237个苦荞麦的开花生长习性、生产力和形态株型进行了田间条件下的生态变异和性状分析。从上述性状与采样点地理性状的关系出发，概述了苦荞生态性状的变异。在接下来的一年里，对主要的20个菌株进行了更详细的调查。根据所获得的结果，包括对播期的反应，苦荞品系被划分为几个类群。种子性状分析：应用图像分析方法中的傅立叶分析方法，对苦荞种子形态变异进行分类，明确采样点之间的差异。并从采集点的栽培利用情况分析了种子形态的变化。用色度计测定种子颜色，进行定量分析。在获得尼泊尔品系的数据之前，建立了获得准确数据的测量程序，尼泊尔品系显示出非常大的颜色变化。用高效液相色谱法对芦丁进行了定量分析，揭示了芦丁在种子和叶片中含量的品系间和品系内差异。并对种子苦味成分进行了化学分析。这些数据和关于种子蛋白质组分的数据有待进一步收集，这些数据和数据对种子组分性状的育种具有重要意义，已经积累了较好的数据。

Tartary buchwheat is regarded as more productive and tolerant to cold and drought, etc. when compared with common buckwheat. However, research works on tartary buckwheat is lucking. The aim of this study is to contribute to further utilization and widespread cultivation of tartary buckwheat by clarifying its physico-ecological traits and variation.Analysis of ecological variation and traits : Flowering and growth habits, productivity and morphological plant type were investigated for 237 strains in the field condition in the first year. Variation of ecological traits in tartary buckwheat was outlined from the relationship of the above characters and geographical characters of collection sites. Major 20 strains were investigated more minutely in the next year. From the results obtained, including the response to seeding time, tartary buckwheat strains were classified into several groups. When detailed data collected on the shoot elongation are analyzed, adaptability of tartary buckwheat to environmental factors will be much more clarified.Analysis of seed characters : Seed shape variation was classified and difference among collection sites was clarified by applying Fourie analysis in image analysis method. Seed shape variation was also analyzed from cultivation and utilization situations in the collection sites. Seed color was measured by using color meter for quantitative analysis. Measurement procedure for getting precise data was established before obtaining data for Nepalese strains, which showed very large color variation. Quantitative analysis for rutin conducted by HPLC method revealed inter- and intra-strain variation of rutin content in seed and leaf. Components of bitterness of seed were also chemically analyzed. These data and data on protein components in seed to be further collected which are fundamentally important in breeding of seed component property has been fairly well accumulated.