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2006—2008年,在四川省板栗重点产区开展乡土板栗优良种质资源的选择工作。按坚果品质、外观和单株丰产性等板栗优树选择的主要指标,进行优树的初选、复选和决选。通过实地调查并参照板栗国家标准(GB 10475—89)、板栗丰产林国家标准(GB/T 9982—1988)及部分地方标准制定四川省板栗优树选择标准,经多性状综合评定,最终筛选出8份优良种质材料。
From 2006 to 2008, the selection of local chestnut excellent germplasm resources was carried out in key chestnut producing areas in Sichuan Province. According to the main index of chestnut superior tree selection, such as nut quality, appearance and individual plant yield, we conducted the primaries selection, selection and selection. Through field investigation and reference to national standard of chestnut (GB 10475-89), national standard of chestnut high yield forest (GB / T 9982-1988) and some local standards, the selection criteria of excellent chestnut trees in Sichuan Province were formulated. After comprehensive evaluation of multi-traits, the final screening 8 excellent germplasm materials.