Desempenho de clones elite de batata para caracteres agronômicos e de qualidade industrial

Abstract

Desempenho de clones elite de batata para caracteres agronômicos e de qualidade industrialO objetivo deste trabalho foi verificar o desempenho de clones elite de batata, em relação a caracteres agronô-micos e de qualidade industrial. Os experimentos foram realizados em Pelotas, RS, Canoinhas, SC, e Londrina, PR. Foi avaliado um conjunto de clones elite, pertencentes ao Programa de Melhoramento Genético de Batata, da Embrapa. O delineamento experimental foi o de blocos casualizados, com três repetições para Pelotas e Londrina e quatro para Canoinhas. Foram avaliados os caracteres massa total de tubérculos, massa comercial de tubérculos, número de tubérculos comerciais, percentagem de massa de tubérculos comerciais, massa média de tubérculos comerciais, peso específico, cor de fritura e ciclo vegetativo. A partir dos dados obtidos foram realizadas as análi-ses de variância para cada local e teste de agrupamento de médias para cada caráter. Para identificação de clones apropriados ao mercado 'in natura', em que é fundamental o elevado potencial produtivo e precocidade, os clones mais promissores foram F80-03-06 e CL02-05, quando comparados à cultivar testemunha Ágata. Para o processamento industrial, em que o peso específico, a cor de fritura e o rendimento de tubérculo são caracteres importantes, destacou-se o clone F81-01-06, que apesar de não apresentar os maiores rendimentos totais, apresentou tubérculos grandes, ciclo vegetativo intermediário e boa aptidão para fritura, quando comparando-se ao cultivar testemunha Asterix.Palavras-chave:Solanum tuberosum L., ciclo vegetativo, rendimento, peso específico, cor de palitos fritos. Giovani Olegario da Performance of elite potato clones for agricultural and industrial quality traitsThe objective of this study was to evaluate the performance of elite potato clones for agricultural and processing quality traits. The experiments were carried out in Pelotas, State of Rio Grande do Sul, Canoinhas, State of Santa Cantarina, and Londrina, State of Paraná. A set of elite clones of the Embrapa Potato Breeding Program was evaluated. The experimental design was a randomized complete block, with three replications to Pelotas and Londrina, and four to Canoinhas. This experiment evaluated total mass of tubers, commercial mass of tubers, number of commercial tuber, mass percentage of commercial tuber, average mass of commercial tuber, specific gravity, frying color and vegetative cycle. Analysis of variance for each site and mean grouping test of each trait were performed from the data obtained in the experiment. By examining the results from the perspective of identifying the most suitable clones for fresh market, where high yield potential and early maturity are essential, compared to the control cultivar Ágata, the clones that appeared as the most promising were F80-03-06 and CL02-05. For processing, for which the specific weight, frying color, tuber yield are important traits clone F81-01-06 stood out, despite not having the highest yields, it has large tubers, intermediate ve...

New national potato genotypes: yield response to different doses of 4-14-8 NPK fertilizer

“…The present study corroborates data from previous studies that observed higher quantity of marketable tubers produced by clone CL 02-05 over cultivar Ágata (Silva et al, 2012(Silva et al, , 2015). However, other authors observed higher production of marketable tubers of cultivar BRS Camila (clone F63-01- 06) in comparison to cultivar Ágata, disagreeing from the results of the present study (Silva et al, 2015).…”

“…The present study corroborates data from previous studies that observed higher quantity of marketable tubers produced by clone CL 02-05 over cultivar Ágata (Silva et al, 2012(Silva et al, , 2015). However, other authors observed higher production of marketable tubers of cultivar BRS Camila (clone F63-01- 06) in comparison to cultivar Ágata, disagreeing from the results of the present study (Silva et al, 2015). A study with cultivar Ágata found the dose of maximum technical efficiency of the same fertilizer for the production of marketable tubers to be 4.6 t ha -1 (Queiroz et al, 2013), a value close to the one found on the present study in crop season 2013/14.…”

“…This result corroborates previous results that verified higher yield of the clone CL 02-05 in comparison to the cultivar Ágata (Silva et al, 2012(Silva et al, , 2015. We highlight the yield potential of clone CL 02-05, that produced around 50% more than cultivars Ágata and BRS Camila in crop season 2013/14 (Table 1).…”

“…These data corroborate with data from previous studies in which higher marketable yields of clone CL 02-05 in relation to cultivar Ágata were observed (Silva et al, 2012(Silva et al, , 2015. On the other hand, there are reports of higher marketable yield on cultivar BRS Camila (clone F63-01-06) in relation to cultivar Ágata in two out of three experiments held (Silva et al, 2015), differing from the result of the present study.…”

“…However, clone CL 02-05 produced a large quantity of cracked tubers (non-quantified data), accounted as marketable tubers, evidencing the difficulty of allying high yield with tuber quality (Bisognin et al, 2008). On the other hand, Silva et al (2015) observed higher total yield of the cultivar BRS Camila (clone F63-01-06) in comparison to Ágata in Pelotas-RS and Canoinhas-SC, and similar yield in Londrina-PR.…”