Adaptability and stability of papaya hybrids affected by production seasonality

Abstract

The present work aimed to estimate the adaptability and stability of new papaya hybrids. The experiments were carried out at the company Caliman Agrícola S/A, in the municipalities of Linhares-ES and Pureza-RN, with seven hybrids from inbred parents of the groups 'Solo' and 'Formosa' and three controls ('Golden', 'Calimosa', and 'Tainung 01'). The experiment consisted of a randomized block design with four replications and ten plants per plot. The variables mean fruit weight (MFW), number of commercial fruits (NCF), and production (PROD) were measured at 270, 360, 450, and 540 days after planting. Afterward, the adaptability and stability of the hybrids were estimated using the Lin and Binns, Eberhart and Russell, and Mixed Models. MFW was less affected by the evaluation periods and showed high behavior predictability. The hybrids UC10, UC12, UC14, UC15, and UC16 were the most adapted and predictable and can be recommended for the regions where the experiment took place.

Combining ability of recombined F4 papaya lines: a strategy to select hybrid combination

“…In this study, the CVe values for NMF, NDF and YLD were considered high, agreeing with Ramos et al (2014), Luz et al (2015), Barros et al (2017), and Luz et al (2018). High CVe values indicate low experimental precision.…”

Genetic variability and nitrogen response indices in common bean (Phaseolus vulgaris) cultivars under contrasting nitrogen environments

“…The use of the HMRPGV method allowed for cultivar selection based on N‐response indices, and cultivars were chosen according to adaptability and penalized for instability between environments (Rosado et al., 2019; Silva et al., 2019). This method has been used for the simultaneous selection of yield, adaptability, and stability in several crops such as common bean (Delfini et al., 2018), wheat (Coan et al., 2018), corn (Pinto et al, 2019), soybean (Freiria et al., 2018), and papaya (Luz et al., 2018). However, there had previously been no studies using the HMRPGV method based on responses to N‐response indices or in contrasting N top‐dressing environments.…”

‘UC14’: a new papaya cultivar with intermediate fruit size

“…OI: overall impression; EA: external appearance; IA: internal appearance; PI1: purchase intention assessed during tasting; PI2: purchase intention associated with external appearance; PI3: purchase intention associated with internal appearance. MG Pereira et al papaya-producing area in the Southeast, where the cultivar was evaluated (Luz et al 2018a).…”