The present study aimed to evaluate the productinty status of panicum
turgidum (Thumam) under the environmental conditions of the eastern
province of Kingdom of Saudi Arabia. Forty eight experimental sites (each of
25 m2, i.e. 1*25 m) were randoml
y selected from three locations (Roads of
Riyadh, Ogair and Damam), which represent the micro-environment of
thumam. Obtained results showed that the dominated plant species associated
with thumam were Eragrostis barrelieri, Haloxylon salicornicum, Leptadenia
pyrotechnica, Plantago ovata and Zygophyllum coccineum. The forage
production of thumam was 57 kg dry matter/ha. However, the nutrient value of
it was relatively low due to the low protein content (4.2 %) and high crude fiber
(30.2 %). Moreover, neutral detergent fiber was 62.4 %, acid detergent fiber
was 65.4 % and lignin was 11.70 % which indicate low nutritional forage value,
compared with traditional forage crops, i.e. Rhodesgrass (Chloris gayana) and
Alfalfa ( Medicago sativa). Macronutrient contents (Na, K, Ca and Mg) were in
the range of sheep and camel requirements, while P was very low as well as
micronutrients (Zn, Cu and Mn).
البروتين
Protein
المادة الجافة
Dry Matter
المملكة العربية السعودية
المنطقة الشرقية
الثمام
Eastern province
Soil drought and salinity
جفاف التربة و ملوحتها
إنتاجية علف الثمام
محتوى الثمام من العناصر الكبرى و الصغرى
نوعية علف الثمام
Thumam
Panicum turgidum
Sandi Arab Kingdom
Thumam forage production
Macro and micro nutrients confent
Thumam forage quality
المزيد..