50 



In the second business year: 



Alnus glutinosa, Belgian origin 35% 

 32 



incana 3 



47 



24 



It was important for me to obtain the seed in early autumn, 

 as it was required from me then, and for this reason I received 

 at first year-old worthless seed. Already in the second year, after 

 I had discovered the trickery of the Mid-European seed merchants, 

 it became somewhat better, but I still had many bad germination 

 results for a number of years, so that I was often in doubt if the 

 seed or the seed testing Establishment was at fault. But for about 

 10 years the Seed-testing Institution has been working, in my opi- 

 nion, with absolute certitude, so that it is known after a few days 

 if the germination will proceed well and if the lot of seed in 

 question is good enough for use. 



ALNUS GLUTINOSA. Whilst the mean germinating capacity 

 over the whole twenty-five years, with 46 samples amounts to 

 24 %, it is 35 / for 19 samples in the last 10 years. The highest 

 germinating capacity during the last ten years is 73, the lowest 18 / . 



ALNUS INCANA, Central European seed, gave for 59 tests in 

 the course of 25 years, a mean germinating capacity of 31 / , 

 while that for the 20 samples of the last 10 years was 48 / , so 

 that we have passed the period of early troubles. The germination 

 now always goes rapidly and smoothly from the start. The best 

 and worse results for the two species have been as follows: 



Germination in per cent after 5 10 20 30 days 



Alnus glutinosa, Belgian seed 190203 ... 38 44 44 



190304... 16 22 25 25 



190405... 20 25 26 



190506... 20 23 28 28 



190607... 8 14 16 



190708... 68 71 73 



190809... 46 54 56 



191112.. 8 23 30 



