油桃果实发育规律分析

Analysis on the Development of Nectarine Fruit

对16个不同熟期油桃不同时期果实大小进行跟踪测定,并绘制了不同熟期油桃的果实发育规律图,为生产上因种栽培提供依据。结果表明:特早熟油桃果实发育速度呈直线型,早熟油桃呈近"S"型,中熟油桃呈"S"型。特早熟期油桃在整个结果期仅出现1个生长高峰期,早熟、中熟整个结果期出现2个生长高峰期。所有的油桃品种均需在定果期施追肥,早熟品种的壮果肥在5月中旬施入,中熟品种的壮果肥在5月下旬施入。

The study tracingly observed and tested different maturity fruits of 16 nectarine varieties,outlined their fruits,development rule to provide foundation for cultivation of different nectarine varieties.The results showed that the development speed of the special early-maturing nectarine was linear and the early-maturing nectarine was near‘S＇.The medium-maturing nectarine was‘S＇type.The special early-maturing nectarine showed only one growth peak in the whole fruit period.The early-maturing nectarine,medium-maturing nectarine showed two growth peaks.All the varieties of nectarine were required topdressing in the fruit period.Early-maturing varieties of strong fruit fertilizer were applied in mid-May,and mid-maturing varieties of strong fruit fertilizer were applied in late May.