Peppers （Capsicum annuum L.） are an important horticultural crop and are used fresh and processed. Several physical and mechanical properties of five pepper varieties （Yellow Bell, Red Bell, Green Bell, Red Chilli ...Peppers （Capsicum annuum L.） are an important horticultural crop and are used fresh and processed. Several physical and mechanical properties of five pepper varieties （Yellow Bell, Red Bell, Green Bell, Red Chilli and Green Chilli） have been investigated. The results showed that there were important significant differences among the varieties in most of the parameters that were measured. The physical characteristics included moisture content, length, width, thickness, projected area, surface area, sphericity, aspect ratio, mass and volume. The coefficients of static and dynamic friction were obtained on stainless steel, galvanic iron, glass and plastic. The aim of this study was to measure some physical and mechanical attributes of five pepper fruit varieties. Among the varieties, Red Bell variety had the highest average fruit mass （217.99 g） and followed by Yellow Bell （122.28 g） and Green Bell （I 12.80 g）. The highest geometric, arithmetic, square, equivalent mean diameter values were observed for Red Bell. The projected and surface areas of varieties were between 52.47-108.29 cm2 and 103.56-227.42 cm2, respectively. In the current study, researchers investigated the mentioned attributes of peppers and then established a convenient reference table for pepper mechanization and processing.展开更多
Chili pepper (Capsicum spp.) fruit color is an important agronomical trait. It has been known that a large deletion in the 5' upstream region of the Ccs gene generates non-red fruit color in pepper, but the accura...Chili pepper (Capsicum spp.) fruit color is an important agronomical trait. It has been known that a large deletion in the 5' upstream region of the Ccs gene generates non-red fruit color in pepper, but the accurate size and position of the deletion and whether all the non-red cultivars had the same large deletion or not were unclarified. In this study, to identify the Ccs upstream large deletion, we carried out diagnostic PCR using six forward primers at 300 - 900 bp intervals in the 5' untranslated region of Ccs with a fixed reverse primer for a yellow fruit pepper “Sonia Gold”. Then it was revealed that 4430 bp from -3234 bp position in upstream region to 1196 bp position in exon was deleted in Ccs of “Sonia Gold”. The allele having this deletion was named ccs-del. Probably this allele is substantially the same as ccs-p1 having 4879 bp deletion reported previously. Based on the sequence determined, we developed a PCR marker to distinguish ccs-del. Genotyping of 16 cultivars of C. annuum showed that 14 had ccs-del and the remaining two had another mutant allele ccs-3. This result indicates that ccs-del is the most common allele and widely shared in non-red fruit cultivars in C. annuum. Genotyping of 16 cultivars of C. chinense clarified that one cultivar each possessed ccs-del and ccs-3. These results indicate that major alleles responsible for non-red fruit color in C. annuum were shared across species throughout interspecific introgression.展开更多
基金Supported by Fund of Taif University,Kingdom of Saudi Arabia
文摘Peppers （Capsicum annuum L.） are an important horticultural crop and are used fresh and processed. Several physical and mechanical properties of five pepper varieties （Yellow Bell, Red Bell, Green Bell, Red Chilli and Green Chilli） have been investigated. The results showed that there were important significant differences among the varieties in most of the parameters that were measured. The physical characteristics included moisture content, length, width, thickness, projected area, surface area, sphericity, aspect ratio, mass and volume. The coefficients of static and dynamic friction were obtained on stainless steel, galvanic iron, glass and plastic. The aim of this study was to measure some physical and mechanical attributes of five pepper fruit varieties. Among the varieties, Red Bell variety had the highest average fruit mass （217.99 g） and followed by Yellow Bell （122.28 g） and Green Bell （I 12.80 g）. The highest geometric, arithmetic, square, equivalent mean diameter values were observed for Red Bell. The projected and surface areas of varieties were between 52.47-108.29 cm2 and 103.56-227.42 cm2, respectively. In the current study, researchers investigated the mentioned attributes of peppers and then established a convenient reference table for pepper mechanization and processing.
文摘Chili pepper (Capsicum spp.) fruit color is an important agronomical trait. It has been known that a large deletion in the 5' upstream region of the Ccs gene generates non-red fruit color in pepper, but the accurate size and position of the deletion and whether all the non-red cultivars had the same large deletion or not were unclarified. In this study, to identify the Ccs upstream large deletion, we carried out diagnostic PCR using six forward primers at 300 - 900 bp intervals in the 5' untranslated region of Ccs with a fixed reverse primer for a yellow fruit pepper “Sonia Gold”. Then it was revealed that 4430 bp from -3234 bp position in upstream region to 1196 bp position in exon was deleted in Ccs of “Sonia Gold”. The allele having this deletion was named ccs-del. Probably this allele is substantially the same as ccs-p1 having 4879 bp deletion reported previously. Based on the sequence determined, we developed a PCR marker to distinguish ccs-del. Genotyping of 16 cultivars of C. annuum showed that 14 had ccs-del and the remaining two had another mutant allele ccs-3. This result indicates that ccs-del is the most common allele and widely shared in non-red fruit cultivars in C. annuum. Genotyping of 16 cultivars of C. chinense clarified that one cultivar each possessed ccs-del and ccs-3. These results indicate that major alleles responsible for non-red fruit color in C. annuum were shared across species throughout interspecific introgression.
