Monosporascus cannonballus, Rhizoctonia solani and Pythium aphanidermatum are the main causal agents of muskmelon vine decline disease in Oman. This study was conducted to examine the response of six cucurbit rootstocks grafted on four muskmelon scions to the causal agents and fruit quality and quantity. The response o …
The effect of tuber planting date on yield of potato cultivars was examined during three seasons. Planting date had a significant effect on yield, although cultivars showed significant variation in yield potential at the different dates. Varietal yield was significantly correlated with planting date and thus was probab …
Extracts of eight plants from the Omani flora were tested for their effects on oviposition, adult emergence from eggs and mortality of the pulse beetle, Callosobruchus chinensis. Observations were made on the number of eggs laid on kidney bean seeds treated with extracts, adult emergence from seeds and mortality of adu …
Extracts of eight plants local to Oman, namely Qarat (Acacia nilotica), Mustafal (Annona squamosa), Shereesh (Azadirachta indica), Luban (Boswellia sacra), Kheshkhash (Crotolaria juncea), Zebrot (Jatropha dhofarica) Yas, (Myrtus communis) and Suwwad (Suaeda aegyptiaca) were prepared by steeping shaded dried leaf/ seed …
Potato is new as a major crop in arid regions. Due to its food value, expanding production and increasing consumer demand, it is being considered as a strategic crop. Production is based on yearly import of seed potatoes from Europe. Productivity of potato could be increased by targeted selection of varieties for local …
This paper presents the first detailed study on pathogenic variability in Rhynchosporium secalis in Ethiopia. Twenty four isolates of R. secalis, collected from Arsi, Bale and Shoa, major barley growing locations in Ethiopia, were tested on ten differential host cultivars, with known genes for resistance to the disease …
Various factors influencing the amount of disease on the stem-base of wheat, when grown as a component of a bicrop, with white clover, are described. The amount of crop debris on the soil surface remained higher in monocrop than bicropped plots. Furthermore, the rate of debris decay was faster in bicrops than in monocr …
In a three-year field trial, the level of eyespot on cv. Hereward winter wheat was recorded from cereal monoerops and cereal-clover bicrops receiving standard farming practice and reduced levels of input. Disease incidence (for years one, two and three) and severity (years two and three only), increased with each seaso …