Abstract:
A field experiment was carried out at Sudan University
of Science and Technology, College of Agricultural Studies, in
the experimental farm, Shambat, during the period from 30-
12- 2010 to 25-10- 2011.The objective of this research was to
study the effect of frequency of cutting intervals in three
alfalfa cultivars for some growth, yield, seeds yield and
quality characters. The experiment design was a randomized
complete block design with four replications. The treatments
were arranged in spilt plot arrangements. The treatments
consisted of three alfalfa cultivars (Hegazi, Sirivar and
Cuf101) and three cutting intervals (20, 25 and 30 days).
Cutting intervals were assigned as main plots and alfalfa
cultivars were assigned as sub plots. Seven successive cuts
were conducted and from them nine growth, yield, seeds yield
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and quality characters were measured. The characters
included (plant height, number of leaves\plant, forage fresh
yield, forage dry yield, number of pods\plant, number of
seeds\pod, seeds yield\plant, crude protein and crude fiber.
The statistical analysis of variance revealed significant effect
for cutting intervals, cultivars and their interaction for most of
studied characters. For forage fresh yield significant results
were attained in the 5th cut for cutting intervals and in 5th, 6th,
7th, 8th cuts for the cultivars. For forage dry yield significant
results were attained in the 5th cut for cutting intervals and in
5th and 6th cuts for the cultivars. The cultivar (Hegazi) scored
the highest fresh (5.13T\Ha) and dry (1.81T\Ha) forage yield
for the 25 days and 30 days cutting intervals, respectively.
المستخل
