Abstract
This paper aims to assess the competition between the priority (major) crops and the non-priority (minor) crops. Competition between crops is defined as the significant major differences between two crops in terms of production costs and their performance. Data were collected using a questionnaire administered to a random sample of 226 small-scale crop producers including 94 onion producers and 132 potato producers. The T-test was conducted to state whether there is a significant difference of mean land sizes, mean crop yields, mean selling prices, and mean net farm incomes between the two groups of crop producers. Results showed non significant difference between the mean land size allocated to onion production and that allocated to potato farming. Results also indicate that onion yield is significantly greater than potato yield, onion selling price is significantly greater than that of potato, and the net income from onion production is far away greater than the income from potato production. It is remarkable that, in some circumstances, the authorities may prioritize and thus propose to farmers the crops that are less competitive considering their price, yield or income, if the current climatic conditions and economic settings are maintained in the medium or long term. Referring to these findings, policy efforts should encourages to the farmers to shift from potato farming to onion production, or simply inclusion of crop diversification via adopting onion may be the best option to maximize the potentials of the selected crops.
Highlights
The flora of the kingdom of Saudi Arabia (KSA) is among the richest areas of ecosystems and represents a major valuable genetic resource of plants and medicinal herbs [1]
start codon-targeted (SCoT) marker assay produced a total number of bands of 132 with an average of 11 bands per primer, where scorable PCR fragments were generated from all primers (Fig. 1 and Table 4)
This study revealed that, the phylogenetic tree constructed using sequence-related amplified polymorphism (SRAP) data was successful to differentiate between micro-propagated plants and mother plant (Fig. 4)
Summary
The flora of the kingdom of Saudi Arabia (KSA) is among the richest areas of ecosystems and represents a major valuable genetic resource of plants and medicinal herbs [1]. The KSA is distinguished by its large area, showing climatic variability due to height differences, resulting in broad flora variations. Plants of the Saudi flora are highly known for their use in folk and herbal medicine, those of the Sarat and Hejaz mountains, which are characterized by their highly efficient constituent contents [2]. Ashwagandha (W. somnifera) is one of the known plant species that distinguish the Saudi flora. For over 3,000 years it has been a significant herb in the Ayurvedic and indigenous medicinal systems of india [4]. The antimicrobial capabilities of such a plant species were recorded extensively in the literature [3]
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