Tests for the Selection of Forage Turnip Progeny to Order the Vigor and Longevity of Seeds

Abstract

-Forage turnip (Raphanus sativus L. var. oleiferus Metzg.) progeny with seeds of higher physiological quality are of importance for farmers and seed producing companies. The objective of this work was to identify tests to be used in laboratories for the selection of turnip progeny having seeds of higher germination, vigor, seedling emergence in the field, and storage potential. Seeds of 100 turnip progeny of paternal half-sibs were evaluated as to water content, 1,000-seed mass, first count of the standard germination test, accelerated aging, and seedling emergence in the field. The seeds were subjected to storage for 12 months in unifoliate paper bags kept under room conditions and then evaluated by means of the standard germination test, first count of the standard germination test, and water content. The data were examined as to variance and genetic and phenotypic correlations, heritability, coefficients of genetic variation, and selection gain. The standard germination test, first count of germination, and the accelerated aging test can be used to select forage turnip progeny for seed physiological quality and storage potential. None of the tests used were efficient at selecting progeny with high field emergence.

Physiological quality of parsley seeds in function of size

“…Genetic materials with low initial vigor would be more affected by classification of seed by size, as was probably the case of Portuguesa Cultivar. Vigor is not only influenced by the morphological and physiological characteristics of seeds, because genotype can also affect the physiological quality (Oliveira, Martins, Pereira, Lopes, & Torres, 2017).…”

Selection of snap beans progenies to improve physiological quality of seeds

“…Similar heritability results were observed in studies with: i) seeds from three cultivars and fourteen lineages of soybean that were selected for germination and seedling emergence in sandy soil from regions in Minas Gerais (Vasconcelos et al, 2012); ii) 94 bean lineages in relation to seed dry mass (Maia et al, 2011); iii) carrot half-siblings for the first germination count, germination, and accelerated aging tests (Martins et al, 2014); and iv) for forage turnip seeds in relation to germination, seedling vigor classification, accelerated aging test, seedling emergence in the field (S. S. C. Oliveira et al, 2014), and seedling emergence speed index in the field (S. S. C. Oliveira et al, 2017).…”

“…Research evaluating germination and seed vigor (e.g., germination first count, germination, accelerated aging tests, emergence of seedlings in the field, and storage potential) has indicated that breeding programs combined with selection methods based on the index theory can improve the quality of seeds (Maia, Silva, Ramalho, & Abreu, 2011;Vasconcelos, Reis, Sediyama, & Cruz, 2012;Machado, 2014;S. S. C. Oliveira, Martins, Cruz, & Silva, 2014;S. S. C. Oliveira, Pereira, Lopes, & Torres, 2017).…”

“…Studies of genetic breeding in plants that aim to improve physiological qualities of bean seeds (Maia et al, 2011;Mambrin, Ribeiro, Henning, Henning & Bokert, 2015), soybean (Vasconcelos et al, 2012;Martins, Unêda-Trevisoli, Vitti Môro, & Vieira, 2016), carrot (Martins et al, 2014), and forage turnip (S. S. C. Oliveira et al, 2014;S. S. C. Oliveira et al, 2017) to provide high heritability ( > 70%) and genetic variability.…”