The effect of cutting height on the number of China and new varieties of forage sorghum yield in the region of Sistan
ahmad mehraban
1
(
Vice Minister Azad University of Zahedan
)
afsaneh kamalideljoo
2
(
null
)
Omid Azizian Shermeh
3
(
Master of phytochemistry
)
Keywords: Cutting height, Sorghum cultivars, Wet yield, Dry yield,
Abstract :
To study the effects of cutting height on the harvest times and forage yield of some new sorghum cultivars, an experiment was conducted at Zahak agricultural research station (30ํ’54” N, 61’46” W; 483 m above sea level) in the spring season of 2014. The experimental design was a split plot arrangement in RCBD with four replications.Three sorghum cultivars viz A1=speed feed, A2=pegah and A3=indian(local cultivar) were assigned as main plots and four cutting heights including B1=0(control), B2=5cm, B3=10cm and B4=15cm were randomized in sub plots. Analysis of variance showed that both cultivar and cutting height had significant effect on the wet forage yield of Sorghum. Interaction effect of cultivar and cutting height was significant on the plant height in second and third cutting times, but it was non-significant in the first cutting time. Generally individual and interaction effects of cultivar and cutting height were significant on the dry forage yield of sorghum. On the basis of results, Sorghum had the most(108.3t/ha) and the least(59.48t/ha) wet forage yield in the second and third cutting times respectively. Meanwhile the most(30967.5kg/ha) and the least(10607.5kg/ha) dry forage yield was observed in the second and first cutting times respectively.