rieties useful iu the northern United States, proved fullv hardv during 

 the winter of 1952-1953. Several selected seedlings are heing distributed 

 for further testing. More back-crossed seedlings are being grown for fur- 

 ther selection. 



The first New Hampshire winter-hardy rambler rose seedling from 

 our hardy rose-breeding project was distributed to other experiment sta- 

 tions for testing this year. A hybrid of the popular Memorial Rose often 

 used as a ground cover in warmer places, and the very hardy, double, 

 pink, bush rose. Betty Bland, it is expected that this single, pink-flowered 

 seedling rambler will be of value both for itself and as a parent of better 

 hardy roses. Many other seedling roses are being tested and will be in- 

 troduced if they prove worthy. 



Of interest to greenhouse men. a second generation of the attractive 

 pot callas described last year are being grown and interesting new flower 

 and leaf combinations are expected. 



E. B. RisLEY, E. Al. Mradek 



Hay-Mulch Pays 



Since 1943. hay-mulched Mcintosh apple trees, without additional 

 fertilizer, have out-yielded both sawdust-mulched trees and those growing 

 in sod without additional mulch. Also, the foliage has shown consistently 

 darker green color than trees under other treatments. The annual appli- 

 cation of nitrogenous fertilizer on such trees beginning in 1948 has. as 

 \et. failed to change the yield status ; but foliage color of trees under saw- 

 dust treatment has improved. 



E. P. Latimer 



Culture of the Durham Red Raspberry 



Durham red raspl)erries were grown under hav-sawdust and bark- 

 mulches, and without mulching. All were fertilized with two levels of 

 ammonium nitrate-sulphate (nitroprills) at the rate of 150 and 300 pounds 

 per acre. 



Both spring and fall crops were larger on the cultivated plots than 

 on any of the mulched plots. 



Picking of the fall crop started two weeks earlier on the cultivated 

 rows than on the mulched rows due to earlier development of the fruit 

 blossoms. 



Increasing the nitrogen fertilizer from 150 to 300 pounds did not 

 increase yields or size of fruit on any of the treatments. 



R. Eggert 



Storage Experiments on New Apple Varieties 



A study of the keeping quality of 35 varieties of apples in cold stor- 

 age has shown that the new varieties — Idared, Fireside and Webster — 

 stored exceptionally well up to May 1. However, it was also observed that 

 Mcintosh and Northern Spy also kept much better than usual, which 

 may have been due to the relatively dry growing season in 1952. The 

 varieties Idared and Fireside appear worthy of trial planting for the late 

 market. 



A. F. Yeager 



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