430 



EXPERIMENT STATION RECORD. 



the (inestion of the dui-atiou of the vitality of seeds the author took 20 

 lots of well-iiiature<l, fresh seed, and examined a portion of them each 

 year from 1883 to 1894. The unused portions were kept in i^aper bags 

 in a dry, airy room. The tabulated results of his examinations are 

 given below. In some cases but a single sample of seed was tested 

 each year, but in most the figures given are the average of 3 sami)les 

 tested. 



Result of 11 years' seed testing. 



Kind of seed. 



Percentage of vitality. 



12 3 4 

 yr. yr. yr. yr. 



Ked clover (Tri folium pratense) 90 



White clover {J'lifoliumrepens) 74 



Alsike clov(-r ( Tri/cliirm hyhrirlxim.) 73 



Esparcet ((hmhnirl'lti si(t,i-(n 92 



Serradella ( o,„ Ithi,/. »x mi fir iii<) 30 



Alfalfa {Medicu.io f.ativu) 94 



Kreucli oat grass (Avena elatior) 70 



Italian rye grass (Lolium italicnm) ' 67 



English iye grass (Lvliuvi perehiie) j 72 



Tall fescue {Fenivca 2rrateniiii) 83 



Sweet vernal grass (Anthoxanthvin o('or(niiiii) 70 



Meadow foxtail (Alopeciinis viatinnii) I 13 



- ■ -■- 95 



46 

 28 

 46 



Tiniotliy {I'hleniii pyatcnge) . 

 Orchard grass (Dactylis glonierata) .-. 



Blue grass (I'oa pirutensis) 



Crested dogst.'iil {('ynosurus cristatus) 



Fiorin {Agrustis- uttnonifera) 



Sheep fescue ( Festuca ovina) 



Hair grass (Aira flexuosa) 



Spuriy (Spergula arvensis) 



88 84 

 63 t 52 

 51 1 37 

 78 I 61 



5 6 7:8 

 yr. yr. yr. i yr. 



9 10 11 

 yr. yr. yr. 



74 68 



50 50 



15 i 7 



54 52 



14 11 



66 I 60 

 72 1 68 



39 29 



28 i 22 



57 4G 



9 7 



90 ! 88 



44 44 



48 42 35 



43 I 37 1 31 



7 5 I ,3 



86 79 ! 66 



38 29 i 21 



10 ' 3 

 26 ; 23 



63 ; 59 

 1 i 

 4 

 1 

 1 



31 i 22 



4 ! 3 



I 



25 I 21 



■ 2 



22 



3 



(') 

 

 54 

 

 1 

 

 

 4 

 

 





 1 



5 (■) 







1 

 20 I (1) 







I 



8 2 



'No seeds for examination, r.ll liaving been used up in tlie previous years. 



Impurities in clover .seed, -T. H.Panton {Ontario A</L College Bui 

 .W, 2U^- ^', ./f<7«. 10). — The author examined (JO sami)les of clover seed 

 received from various sources, testing it for its purity, genuineness, 

 and vitality. All samples were true to name. Fifty three contained 

 weed seeds in varying quantities, the most abundant being seeds of 

 white cockle (Lych)iis rcsjicrtina), sorrel {Rnmex acetoselld), campion 

 [SUcne inflata), chicory {Cichorium intyhiis), rib grass {Planiago laneco- 

 lata), ragweed {Amifro.sia artemiskvfoUa), smartweed {Poltjuonion pcnii- 

 .sylvanieum), chess {liromus sccaliitus), and black bindweed (J'oli/tjmium 

 couvolrnliis). Of these seeds enlarged and natural sized figures are 

 given. The number of weed seeds in h oz. and the probable proportion 

 of weeds to clover i)lants in a square yard seeded at the usual rate are 

 given. The vitality varied from 40 to 08 per cent, with an average of 

 all sami)les of over 00 per cent. 



Methods of planting and destroying Bermuda grass, C. T^ New- 

 man {ArMnsas Sia. Bui. 28, pj). 103-108). — Directions for planting are 

 given. In an experiment on methods of destroying this grass satisfac- 

 tory results were secured (1) by plowing with a heel sweep at intervals 

 of from 1 to 3 weeks throughout the season; (2) by growing a crop of 

 oats and afterwards.followiiig with the above treatmentfor the remainder 

 of the season ; (3) by growing a crop of oats and for the rest of the season 



