葡萄扦插育苗,在芽眼荫发之前或萌发的同时是否能生出根来,是成苗的关键。为提高育苗成苗率和育出壮苗,我们于1980年对11万根插条进行了阳畦催根,效果非常明显。一、原理和方法根据插条生根组织—中柱鞘活跃的温度高于芽眼萌发温度的特性,将插条倒放在阳畦内,使插条发芽端处于阳畦底部的低温条件下,以抑制芽眼萌发,插条的生根端处于阳畦上部,利用太阳的辐射热能提高温度,促使插条在扦插前形成根原基或幼根。 (一) 催根时期的确定:因为阳畦催根是利用太阳能增温,畦内温度直接受气候影响,所以插条催根时期,不但考虑气象因子,同时还要与田间栽插时间相联系,一般的育苗扦插时间是4月中旬,催根插条的栽插时间略晚,是4月中下旬。插条在阳畦内需经 Grape cuttings nursery, before the eye bud hair or germination can give birth to the root, is the key to seedlings. In order to improve seedling emergence rate and nurture strong seedlings, in 1980, we carried out the pricking up of 110,000 cuttings and the effect was very obvious. First, the principle and method According to cuttings rooting tissue - columnar sheath active temperature higher than bud germination temperature characteristics, the cuttings placed in the yang, the bud germination end of the yang at the bottom of the low temperature conditions, in order to inhibit the bud Germination, cuttings at the root of the yang in the upper part of the use of the sun’s radiant heat to raise the temperature, prompting the cuttings before the formation of root primordia or young roots. (A) to determine the period of reminder: Because the erection of solar eruption is the use of solar energy warming, temperature within the 畦 directly affected by the climate, so the cutting period, not only consider meteorological factors, but also with the planting time in the field linked, The general nursery cutting time is in mid-April, reminder root planted planting time slightly later, is mid to late April. Cuttings in the yang required by