Efectos genéticos para características fisiológicas y de rendimiento en tomate (Solanum lycopersicum L.)
DOI:
https://doi.org/10.59741/agraria.v18i3.55Keywords:
genetic effects, heterosis, physiological traits, yieldAbstract
In this study defined genetic effects in traits in mean of fruit weight (MFW), yield (YIELD) in tons hectare, photosynthesis (PHOTO, μmol CO2 m-2 s-1) and water use efficiency (WUE, g CO2 m-2 s-1 por 10 L-1 de H2O m-2 s-1). An experiment with three crosses the cultigen from six populations (P1, P2, F1, F2, RC1P1, RC2P2) was established under irrigation by dripping and mulch plastic, they were planted in randomized complete block design at two locations. The results indicated in MFW the effect were the highest magnitude that dominance (d), additive x additive (aa), additive x dominance (ad) and dominance x dominance (dd) that value heterosis negative. In YIELD additive (a), dominance (d) and additive x additive (aa) effects, were the highest magnitude, with heterosis values from -19.05 to 12.56%. In FOTO was just present the dominance effect (d) with heterosis values from 35.28 to 86.70&%, and effects on WUE were additive (a), dominance (d) and dominance x dominance (dd) with heterosis values from 33.62 to 91.45%. In crosses with highest non additive value effects we suggest the genotype selection on advanced generations. The goals of this study were determine the genetic action type and heterosis of tomato (Solanum lycopersicum L.).
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