Selection of red clover (Trifolium pratense L.) with regard to length and number of flower heads
Halina Góral
khrin@urk.edu.plKatedra Hodowli Roślin i Nasiennictwa, Akademia Rolnicza w Krakowie (Poland)
Jadwiga Przypadek
Stacja Hodowli Roślin, Nieznanice (Poland)
Ludwik Spiss
Katedra Hodowli Roślin i Nasiennictwa, Akademia Rolnicza w Krakowie (Poland)
Abstract
Two types of red clover breeding forms of different length and number of flower heads were developed by 1–3 backcrosses of cv. Nike with long-head clover. Progenies N were obtained by backcrossing F1 to Nike, and progenies D — to long-head genotypes. Index selection for seed yield among progenies included negatively correlated traits: flower head length and their number. Compared to cv. Nike all the progenies gave higher seed yield and on average showed longer heads, a greater number of seeds per head with a lower number of heads. Although the head length and seed number per head in progenies D were much higher than in progenies N, their seed yield was comparable due to much smaller number of heads. Their green and dry matter yield were lower that those of progenies N. One of the progenies N exhibited a higher level of seed and forage yield, as well as of other agronomic traits, as compared to cv. Nike. It is concluded that forage and seed yield of red clover can be improved by intercrossing forms of different flower head length and head number followed by appropriate selection.
Keywords:
length flower head, number of heads, red clover, seed yield, selectionReferences
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Authors
Halina Góralkhrin@urk.edu.pl
Katedra Hodowli Roślin i Nasiennictwa, Akademia Rolnicza w Krakowie Poland
Authors
Jadwiga PrzypadekStacja Hodowli Roślin, Nieznanice Poland
Authors
Ludwik SpissKatedra Hodowli Roślin i Nasiennictwa, Akademia Rolnicza w Krakowie Poland
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Copyright (c) 2003 Halina Góral, Jadwiga Przypadek, Ludwik Spiss
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