102 Bulletin 78 



it produces most abundantly extending from the first of April to 

 the first of June. The fruiting season of the Lady Thompson is a 

 little earlier than the Everbearing and not quite so early as that of 

 Michel or Excelsior, being much the same as that of Texas. 



The blossoms are injured by temperatures below 30° at the 

 ground, but the young fruit endures temperatures as low as 24°at 

 the ground and 28° in the government shelter without injury; 

 and green fruit protected by the fohage endures temperatures sev- 

 eral degrees below this. The ripening fruit endures less cold, 

 being injured by temperatures below 25° at the ground. A good 

 picking was taken from Excelsior plants December 24, 1903, 

 although the mercury had fallen at the ground to from 22°to 26°dur- 

 ing ten nights of the month. Some green fruits well protected with 

 fohage survived January, 1904, the mercury falling to 14° at the 

 ground one night, 16° one night, 17° two nights, 18° one night, 

 and 19° three nights; and a few berries ripened during the early 

 part of the month. 



SUDAN GRASS 



Sudan grass belongs to the nonsaccharine sorghums and is well 

 adapted to Arizona conditions. It is very resistant to drought 

 and makes a very valuable forage crop for dry-farming. It responds 

 to moisture and can be groVn luxuriantly in the irrigated valleys 

 of the State. 



Sudan grass is closely related to Johnson grass. In fact, it is 

 difficult to distinguish one from the other without examining the 

 root system. Sudan has no underground stems and is an annual. 

 It will not become a weed pest as Johnson grass does in the irrigated 

 sections. 



Sudan grass seed should be sown in the spring, as early as frost 

 will allow. Under dry farming, if the moisture is insufficient for 

 spring planting, planting should be done in July after the summer 

 rains begin. 



Sudan can be planted in rows and cultivated like other grain 

 sorghums, or sown broadcast. When planted in rows, under dry 

 farming, seeding should be at the rate of 4 to 6 pounds per acre. 

 Broadcasted or drilled seed under irrigation should be at the rate 

 of 16 to 25 pounds per acre. It is best to plant in rows under dry- 

 farming conditions. Sudan grass is limited in its growth by cold 

 weather. Hot weather is favorable to its best development. 



SWEET CLOVER 



Sweet clover can be grown in all parts of the State, but will be a 

 better economic crop for the dry-farming districts. Where irrigation 

 water is abundant alfalfa will prove far more profitable. 



