Variability of agronomic characters in winter oil-seed rape
Henryk Bujak
henryk.bujak@upwr.edu.plKatedra Hodowli Roślin i Nasiennictwa, Akademia Rolnicza we Wrocławiu (Poland)
Andrzej Kotecki
Katedra Szczegółowej Uprawy Roślin, Akademia Rolnicza we Wrocławiu (Poland)
Marcin Kozak
Katedra Szczegółowej Uprawy Roślin, Akademia Rolnicza we Wrocławiu (Poland)
Władysław Malarz
Katedra Szczegółowej Uprawy Roślin, Akademia Rolnicza we Wrocławiu (Poland)
Abstract
Fourteen cultivars of winter oil-seed rape (Baldur F1, Californium, Capio, Carina, Cazek, Contact, Digger, Kronos F1, Liclassic, Lirajet, Lisek, Mazur F1Z, Pomorzanin F1Z, Titan F1, and Viking) were sown in a split-block design at Pawłowice near Wrocław in the growing season 2003/2004. Two systems of husbandry were used: standard and intensive. In the standard system crop protection was carried out according to guidelines of the Institute of Plant Protection in Poznań and mineral fertilization was as follows: 140 kg N·ha-1, 60 kg P2O5·ha-1 and 120 kg K2O·ha-1. The intensive variant of cultivation, in comparison with the standard system, differed by a 50 kg·ha-1 higher level of nitrogen fertilization, foliar sprays with micronutrients (bud stage), full disease control (fungicide sprays at dropping of petals and at green maturity of pods stage). High estimates of heritability were obtained for seed yield (0.79), crude fat yield (0.78) seed weight per pod (0.76), crude fat content (0.74) and crude protein yield (0.74). Low coefficients of variability (less than 5%) were calculated for crude fat content in seeds, 1000 seed weight, no of seeds per pod and total protein content. Viking was the best cultivar in respect of seed yield, crude fat yield and total protein yield. It was also characterized by high no. pods per plant, no. of seeds per pod, seed weight per pod and its crude fat content in seeds was the highest.
Keywords:
coefficient of variability, cultivars, heritability, winter oil-seed rapeReferences
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Authors
Henryk Bujakhenryk.bujak@upwr.edu.pl
Katedra Hodowli Roślin i Nasiennictwa, Akademia Rolnicza we Wrocławiu Poland
Authors
Andrzej KoteckiKatedra Szczegółowej Uprawy Roślin, Akademia Rolnicza we Wrocławiu Poland
Authors
Marcin KozakKatedra Szczegółowej Uprawy Roślin, Akademia Rolnicza we Wrocławiu Poland
Authors
Władysław MalarzKatedra Szczegółowej Uprawy Roślin, Akademia Rolnicza we Wrocławiu Poland
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