EVALUATION OF MORPHOLOGICAL AND GENETIC DETERMINANTS OF FODDER YIELD AS A SELECTION CRITERION IN F2, F3 AND F4 GENERATIONS OF OAT (AVENA SATIVA L.)
POOJA DEVI*, V. K. SOOD AND RAJNI DEVI
Department of Crop Improvement,
CSK Himachal Pradesh Krishi Vishvavidyalaya,
Palampur, 176062, India
*(e-mail : poojakalsi6242@gmail.com)
(Received : 28 May 2018; Accepted : 20 June 2018)

SUMMARY

A field experiment was conducted as Fodder Section Farm of Department of Crop Improvement, CSK HPKV, Palampur during 2015-27 to estimate the direct and indirect effects of twelve morphophysiological traits towards fresh fodder yield in F2, F3 and F4 generations of oat cross PLP-1 x HJ-8 which revealed that tillers per plant, leaves per plant, dry matter yield per plant and crude protein yield per plant plays chief role as major forage yield component in both early and late generations, therefore selection of these traits would offer the scope for improvement in fresh fodder yield and also the significant correlation between these traits in F2, F3, and F4 generations indicated that these traits are mostly governed by additive gene action and also the suitability of these traits for selection on individual plant basis in the advanced generations of segregating populations which would ultimately help to achieve higher total green fodder yield in oats. In the evaluation of F2, F3 and F4 generations along with parents, about 14.33, 18.44, and 22.89% transgressive segregants, respectively, were obtained for most of the traits which indicated the importance of PLP-1 and HJ-8 as parents in the future breeding programme for improving fodder yield in oats.

Key words:Segregating populations, forage traits, direct and indirect effects, transgressive segregants, selection, fodder yield, oat

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