为了降低生产成本,不少栽培者自己制三级菌种。但是常因制种技术环节掌握不妥而造成损失。笔者经过调查发现有这样几个易被忽视的问题。 (一)含水量的掌提问题 一般采用手握料测水法,以指缝有水不满为标准。这样因用力的大小、手握料的多少和料的粗细与质地的不同,所测得的含水量差异较大,往往是含水量偏高。由于含水量高菌丝生长慢,易引起污染,制出的菌种质量低劣,或错过适宜的,播种期而造成损失。据我们的实践,以每百公斤干料 In order to reduce production costs, many cultivated their own system of three species. However, often due to improper production of technical aspects of the resulting loss. After investigation, I found that there are several easily overlooked issues. (A) of the palm of the hand the problem of water content The general method of measuring the water using hand grip, to fingerprinting water dissatisfaction as the standard. This is due to the size of the force, the amount of hand-held material and material thickness and texture of the different, the measured water content greater differences, often high water content. Due to the high water content of mycelial growth slow, easy to cause pollution, poor quality of the strains produced, or missed the appropriate, sowing period and loss. According to our practice, dry material per one hundred kilos