ycrsity of California Experiment Station trials, the sour- The 



orange stock has been found to be decidedly hardier, and Cultivation of 



, , i A Citrus Fruits 



in every way better than the sweet-orange stock. Among 



its other good qualities, it is resistant to alkali. 9 



But the pomelo is deservedly becoming the favourite 

 stock in southern California. Its laterals are found at a 

 greater depth than the laterals of the sweet orange; it pro- 

 duces more fibrous roots than does either of the other stocks, 

 and the tree is consequently a ravenous feeder. It has suc- 

 ceeded better at the Experiment Station of the University 

 of California than has the sour stock, which seems to lack 

 uniformity of root growth, sometimes having but few lat- 

 erals, in which case the crops are small. 



Pomelo seedlings are said also to have made the best 

 growth in the nursery. 



Seedlings are grown either in boxes or in the open 

 ground; in either case a rich sandy loam, which will not 

 bake, should be secured. 



The seedlings appear in about six weeks, and with good 

 care in weeding and in keeping sufficiently but not ex- 

 cessively moist, they will make a growth of about a foot 

 in the first season. 



Planting out in the nursery should be done so soon as 

 the ground is thoroughly warmed in the spring, when the 

 seedlings will be about a year old. 



The distance between the rows in the nursery should 

 be at least four feet, to allow of horse cultivation. A dis- 

 tance of 1 8 inches between the plants in the rows will per- 

 mit of the roots being sacked, or otherwise protected, when 

 the plants are to be removed to the plantation. 



In taking the seedlings from the seed bed, a few should 

 be lifted at a time, and it is essential that their roots be kept 

 shaded and moist until the ground closes on them in the 

 nursery row. 



It is important to have an even stand in the nursery, 

 and weak plants should be rejected. The seedling trees 

 are very susceptible of injury by frost, and it is wise to give 

 them some sort of protection during the winter. 



The young plants are usually budded after being one 

 or two years in the nursery, or at two to three years from the 

 sowing of the seed. At a convenient time in the winter, 

 the lower shoots and thorns are removed, so as to leave a 



