PJB-2021-444
PHYSICOCHEMICAL DIVERSITY IN GUAVA (PSIDIUM GUAJAVA L.) GERMPLASM OF SINDH
Waqas Joyia
Abstract
Seventeen elite strains of two guava cultivars viz. Round (Gola) and Pyriform (Surahi) were collected from main guava producing regions of Sindh to estimate the extent of diversity for physicochemical attributes. Great variability was found in different genotypes and among two collection sites. Fruit weight and size were greater in strains collected from Hyderabad whereas higher total soluble solids (TSS), ratio TSS:TA and less number of seeds were found in strains collected from Larkana. Among Pyriform strains, Long Surahi (S1) from Larkana could be selected for better fruit weight, fruit size, low acidity and seedlessness. Maximum TSS (>14 °Brix) was found in Benazir Surahi (S6) and maximum sugars were found in Larkana Surahi (S10). Likewise, among Round (Gola) strains Allahbadi (G5) was found better for fruit weight, fruit size and low seeds. Exceptionally higher TSS (>17 °Brix), TSS:TA and sugars (8.58%) were noted in Red Skinned Gola (G1). Desi Gola (G6) has greater amount of anthocyanins and ascorbic acid. Principal component analysis plot based on first two factors showed great variability and most of the strains of cv. Pyriform collected from Larkana were clustered together in the dendrogram. These findings highlight greater extent of variability present in the guava germplasm. The promising selections shall be used as candidate varieties for further clonal propagation and utilization as parental material in the breeding programs.
To Cite this article:
Download
