新型苹果矮化砧木——SH_1的选育

Breeding of a new apple dwarfing rootstock——SH_1

SH1苹果矮化砧是从国光×河南海棠的杂交实生苗中选育而成。经30 a的田间调查及区试鉴定表明,其做中间砧与基砧八棱海棠、山定子和红星、红富士等苹果品种亲和性好、树体矮化、结果早,尤其是果实着色、风味品质、耐贮性及抗逆性等主要经济性状均超过了M26。SH1矮化砧适宜在黄土高原或气候类似的苹果产区栽培。

SH1 apple dwarfing rootstock was derived from the cross of Ralls JanetxMa/us honanensis by Pomology Institute, Shanxi Academy of Agricultural Sciences. The results of 30-year investigation showed it had good compatibility with the root- stocks [Malus baccata （L.）, Malus micromalus] and the commercial apple cuhivars （Delicious, Fuji）. SH1 presented good dwarfing characteristic, similar to M26. Fruits of Fuji on SH1 had high soluble solids content and appropriate acid content, covered with 100% color, which were superior to on M26, as well as excellent texture, early maturity period, long storage stage, etc. The cold resistance of SH1 was stronger than that of M26, so it was adapted to the Loess Plateau or the region with similar climate.