论文部分内容阅读
山西省于1956年即引入了英国的苹果矮化砧木,但大量的应用发展主要是在七十年代,现在全省约有40余万株,主要砧号为M2、M4、M7、M9及 MM 系104、106、109、111。一般作为中间砧应用,中间砧段长度为20厘米左右,基砧为山丁子。行株距采用4×3米及4×2米,但也有少数采用5×3或3×2米的。现仅将 M2、M4、M7、及 M9的生长结果情况综述于下。
Shanxi Province introduced dwarf apple stock in England in 1956, but a large number of applications mainly developed in the 1970s. There are now about 400,000 strains in the province. The main antivirus species are M2, M4, M7, M9 and MM Department 104,106,109,111. Generally used as an anvil, the middle anvil length of about 20 cm, the root anvil for the mountain Dingzi. Row spacing of 4 × 3 meters and 4 × 2 meters, but also a small number of 5 × 3 or 3 × 2 meters. Now only the M2, M4, M7, and M9 growth results are summarized below.