^Ew York Ageicultukal Experiment Station. 369 



the clusters which failed to set fruit. It is best to make such rec- 

 ords early in the season because late in the season it may be im- 

 possible to decide whether the absence of a cluster means that it 

 failed to set fruit or that the cluster was accidentally broken off. 

 After the fruit ripened each cluster was rated on the scale of 100 

 according to the percentage of a full cluster of fruit which ^vas 

 found, as has already been stated under " Plan of Work." The 

 detailed records are here given for each variety together with the 

 records which the same variety has made in previous years when 

 tested as to its self -fertility. Unless otherwise stated the tests here 

 reported were made in 1899. 



The results are summarized and presented graphically on the 

 pages following the discussion of the separate varieties. 



AMINIA. 



Aminia self-pollinated. — In 1892, 2 clusters of Aminia which 

 were kept covered during blooming season gave no fruit; in 1898, 

 9 clusters which were likewise tested gave no fruit. In 1899, 

 6 clusters of Aminia at Highlands were hand-pollinated" with 

 Aminia pollen brought from the Station, but no fruit set; 10 clus- 

 ters which were kept covered during the blooming season were 

 rated 0, 0, 0, 0, 0, 0, 0, 0, 0, 12 respectively. Average rating 1.2. 

 So far as tested Aminia is practically self-sterile. 



Aminia pollinated with Brighton. — Six clusters tested at High- 

 lands were rated respectively 0, 0, 0, 0, 0, 10. Average rating 1.7. 



Aminia pollinated with Wyomiiig. — Five clusters tested at 

 Highlands were rated respectively 0, 0, 0, 0, 20. Average rat- 

 ing 4. 



^Aminia pollinated with Niagara. — One cluster tested at High- 

 lands rated 80. 



2Bj'' "hand pollinating," is here meant brushing the clusters with the open 

 flowers from another vine of the same kind, and then inclosing the pollinated 

 cluster together with the cluster which furnished the pollen in a bag accord- 

 ing to the method followed in the 1899 experiments in cross-pollinating, as de- 

 scribed on a preceding page. 



24 



