Assessment of genetic variability among different genotypes of Cape gooseberry (Physalis peruviana L.) in India

Abstract

The field experiment was carried out at the research farm of Horticulture Garden, Bihar Agricultural College, Sabour, Bhagalpur during 2014-15 for assessment of genetic variability among different genotypes of cape gooseberry in India. The experiment was laid out in Randomized Block Design with three replications having twelve genotypes. Analysis of variance revealed significant differences among genotypes for all the traits studies which suggesting sufficient variability for yield and quality parameters. The overall values of phenotypic coefficient of variation (PCV) were higher than those of genetic coefficient of variation (GCV). Higher magnitude of GCV and PCV were recorded for fruit per plant percent (33.30 and 36.61) followed by fruit diameter, fruit weight and flowers per branch. The maximum GCV (33.30) and PCV (36.61) were recorded in fruits/plant respectively. The high values of GCV are the indication of excess variability among the genotypes and thus the scope for crop improvement depends on the selection of superior parents for crossing to get better parents for hybridization. In present study, the magnitude of heritability ranged from 37% to 98% indicating that these traits are controlled by additive gene action which is very useful in selection. The traits like plant girth, plant height, inter nodal length, appearance of 50% of flowering, bud break to full bloom, number of flowers per branch, number of fruits set per branch, duration of fruit set to maturity, fruit weight, fruit diameter and number of fruits per plant with high GCV, PCV, heritability and genetic advance as percentage of mean, indicating that these characters are under additive gene effects and more reliable for effective selection.

Dialell Analysis for Morphoagronomic Descriptors in Physalis Angulata L. Hybrids

“…We found broad-sense heritabilities 0.53 and 0.41 for PH and TSS, respectively (Table 1). Kumar et al (2017) found a similar heritability for PH (0.51) in P. peruviana, and Leiva-Brondo et al ( 2001) found heritabilities of 0.53 and 0.87 for TSS in P. peruviana evaluated in glasshouse and outdoors, respectively. The heritability coe cients are measures that vary depending on the genetic variability in the genotypes, the environment conditions and the nature of the trait.…”

“…High genetic variation for yield traits have been found in P. peruviana (Herrera et al 2011;Kumar et al 2017), indicating a potential to produce more than 15 t.ha -1 (Herrera et al 2011) . Using the maximum value of WFP found in our studies, we found that some plots reached potential yields of 16 t.ha -1 of fruits, with the hybrid Can x Laj reaching 9.3 t.ha -1 , on average, reinforcing the potential of P. angulata to be a Brazilian crop.…”

Seleksi Kegenjahan dan Hasil Tinggi pada Ciplukan (Physalis angulata L.) Berdasarkan Nilai Kemajuan Genetik

“…Nilai KVG dan KVF yang sama-sama tinggi merupakan indikator adanya variabilitas yang cukup besar pada karakter tersebut. Hal tersebut sesuai dengan pendapatKumar et al, (2017) bahwa karakter dengan nilai KVG dan KVF yang tidak berbeda secara signifikan menunjukkan bahwa karakter tersebut tidak mendapat pengaruh yang kuat oleh faktor lingkungan. Kegiatan seleksi akan lebih efektif karena variasi diantara genotipe sebagian besar dikendalikan oleh faktor genetik.Tabel 4.…”