论文部分内容阅读
采用春季催育母株,取4—8厘米的嫩梢作插穗,并用吲哚丁酸(IBA)-滑石粉进行处理,再置喷雾或弥雾下生根,然后将已生根的插条栽植在不加温温室中直到生长季结束,这样便可在一年内生产出苹果砧木.4月和5月间分别从1年生和2年生母株上取插条,插床密度为800根/m~2和1400根/m~2。生根率和根量均以早春取自母株上的第一批插条为高(‘MM106’和‘M28’的生根率分别达90%和70%),其后几批插条的生根率下降。用1.0%IBA-滑石粉处理的效果优于不处理的和用2.0%浓度处理的,每插条上产生的根数也多于0.5%浓度。可出售砧木(径粗>6mm)的最高百分率是5月取插条并以50—70株/m~2密度栽植的生根插条。到当年生长季结束,大约65%的‘MM106’插条和45%的‘M26’插条达到了商售规格.
The female parent plants were bred in spring and young shoots 4-8 cm were taken as cuttings and treated with indole butyric acid (IBA) -calcium. Roots were also sprayed or misting followed by rooting of cuttings Not heating the greenhouse until the end of the growing season, so that in one year to produce apple rootstocks in April and May, respectively, from 1-year-old and 2-year-old mother plant cuttings taken, planting bed density 800 / m ~ 2 And 1400 / m ~ 2. The rooting rate and root volume were all high in the first batch of cuttings taken from the mother plant in early spring (the rooting rates of ’MM106’ and ’M28’ were 90% and 70%, respectively) decline. The treatment with 1.0% IBA-talc was superior to non-treated and treated with 2.0% concentration with more than 0.5% of the number of roots per cut. The highest percentage of salable rootstocks (diameter> 6mm) was the rooted cuttings that were planted in May and planted at 50-70 plants / m ~ 2 density. By the end of the growing season, about 65% of the MM106 cuttings and 45% of the M26 cuttings reached the commercial specification.