Adaptability and stability of canola hybrids in different sowing dates

Abstract

Canola is an important crop in the world market, mainly for its oil being used for human consumption and biodiesel production, being a great economical option for the farmer, which are the reasons to the increase in its cultivation in Brazil. This study aimed to evaluate the adaptability and stability of canola hybrids, depending on the sowing dates. The canola hybrids (Hyola 61, Hyola 76, Hyola 411 and Hyola 433) were evaluated in three sowing dates (04/10, 04/25 and 05/10) in the agricultural years of 2013 and 2014, under a randomized complete block design with five replications. The response variables analyzed were seed yield and oil content. Adaptability and stability of the hybrids were evaluated by three methods: Wricke's ecovalence (1962); confidence index (ANNICCHIARICO, 1992) and method of maximum ideal deviation (LIN; BINNS, 1988). The methodology proposed by Wricke (1962) highlighted as stable the hybrids Hyola 61 for seed yield and Hyola 411 for oil content. In the methodology proposed by Lin and Binns (1988) and Annicchiarico (1992), the hybrids with higher general adaptability and stability were Hyola 411 and 433. These hybrids presented the highest means for seed yield and oil content with predictable and responsive behavior to changes in sowing dates tested in the region of Maringá-PR.

Effects of Sowing Date, Cultivar and Chitosan on Quality and Quantity of Rapeseed (Brassica napus L.) Oil

“…The factors interaction means that the sowing dates produced a differential effect on the response of cultivars for many traits. The similar significant interaction was found between sowing date and canola hybrid for seed yield and oil content (Lima et al 2017). The interaction between sowing date and chitosan was significant (P<0.05) only for a number of pods per plant.…”

MULTI-ENVIRONMENT TRIAL ANALYSIS BY PARAMETRIC AND NON-PARAMETRIC STABILITY PARAMETERS FOR SEED YIELD IN WINTER RAPESEED (Brassica napus L.) GENOTYPES

“…When studies conducted on the GEI for seed yield in the rapeseed are examined, it was seen that in the studies conducted by Shafii et al (1992); Wright et al (1995) Oghan et al (2016); Sharma and Sardana (2016); Lima et al (2017), the GEI was determined to be significant and various stability analyses were carried out.…”

Research Article Phenotypic stability of strawberry cultivars assessed in three environments

“…Evaluation of stability by using the Annicchiarico method has been reported by several authors and in several species, such as maize (Schmildt et al 2011;Possatto Júnior et al 2017a;Silva et al 2017), canola (Lima et al 2017), and soybean (Barros et al 2012). Recommendation of phenotypes based on an analysis of stability by Annicchiarico is reliable and has results that are similar to those of other methods (Schmildt et al 2011;Barros et al 2012).…”