Genetic Improvement through Standard Heterosis for fodder yield in Single cut of forage Sorghum [Sorghum Bicolor (L.) Moench]

A. K. Dehinwal, S. K. Pahuja and M. Shafiqurrahaman

CCS Haryana Agricultural University, Hisar - 125 004.

Corresponding Author E-mail: ashokdehinwalccshau@gmail.com

DOI : http://dx.doi.org/10.13005/bbra/2457

ABSTRACT: A study was made in Sorghum bicolor with line x taster (6 females x 4 males) to estimate the magnitude of heterosis among different cross combinations for yield and its component traits. For this purpose, 24 specific cross combinations were developed by using 10 diverse parents during kharif season in 2014-15. These hybrids along with 10 parents and two standard checks (SSG 59-3and MFSH 4) were evaluated at two locations with two dates of sowing (Early and late sowing) during kharif season in 2015-16. The analysis of variance indicated the presence of variability among hybrids and their parents. Among male parents, HJ 541 and G 46 and among female parents, 467A and 56A showed maximum green and dry fodder yield. Maximum heterosis for green fodder yield as comparison with all the four environments over both the checks (SSG 59-3 and MFSH 4) was showed by 9A × IS 2389 (81.1 % and 75.3 % respectively). Alongwith green fodder yield this hybrid is also better for dry fodder yield (46.4 % and 41.4 % respectively) and leaf breadth (60.6 % and 41.9 % respectively). Hybrid 465A × HJ 513 demonstrate better heterosis for green fodder yield (80.7 %) as well as for dry fodder yield (57.7 %). Hybrid 467A × G 46 show better heterosis for green fodder yield (64.7 %) as well as for dry fodder yield (29.6 %). This is also better for plant height, leaf length, leaf breadth and stem diameter.

KEYWORDS: green and dry fodder yield heterosis; Sorghum bicolor; quantitative traits;

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