Vol. 12, Issue 12 (2023)

Author(s):
Kalpana V Rathava and RR Acharya

Abstract:
A study was conducted to estimate the extent of relative heterosis, heterobeltiosis and inbreeding depression for various quantitative and qualitative traits using generation mean analysis from four crosses of eight diversified cultivars of brinjal (Solanum melongena L). The present study revealed high magnitude of heterobeltiosis in desirable direction in cross ABSR 2 × NSP 1 for plant height, cross KS 224 × CHBR 1 for fruit yield per plant and total soluble solids, cross JBGR 1 × GP BRJ 204 for number of fruits per plant, total soluble sugar, days to first picking and days to first flowering as well as in cross DOLI 5 × PN 1) for total phenol content. These crosses also had better overall performance in respect of important attributes related to yield. Hence, these hybrids could be commercially exploited after due investigation. Similarly, significant and positive inbreeding depression was exhibited in fruit yield per plant in cross KS 224 × CHBR 1 followed by cross ABSR 2 × NSP 1 and cross JBGR 1 × GP BRJ 204, number of fruits per plant in cross JBGR 1 × GP BRJ 204 followed by cross KS 224 × CHBR 1, fruit weight in cross ABSR 2 × NSP 1, total phenol content in cross DOLI 5 × PN 1 indicating the early generation selection for all these traits in brinjal, whereas highly significant heterosis with low inbreeding depression was exhibited for total soluble sugar in cross KS 224 × CHBR 1 and cross JBGR 1 × GP BRJ 204.