Shoot growth, tuber yield and quality of two potato cultivars as affected by prohexadione-calcium application
| Autor: | Luan Santos de Oliveira, Adalton Mazetti Fernandes, Rogério Peres Soratto, Daniela Han, Rudieli Machado da Silva |
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| Jazyk: | English<br />Portuguese |
| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Revista Ceres, Vol 68, Iss 5, Pp 411-419 (2021) |
| Druh dokumentu: | article |
| ISSN: | 2177-3491 0034-737x |
| DOI: | 10.1590/0034-737x202168050006 |
| Popis: | ABSTRACT This study evaluated the effects of the rates and timings of prohexadione-calcium (prohexadione-Ca) application on shoot growth, tuber yield, and quality of two potato cultivars (Agata and Mondial). An experiment with each cultivar was carried out in a greenhouse using a randomized block design with four replications. Treatments consisted of a control and single or sequential foliar applications of prohexadione-Ca at the rate of 50 or 100 g ha-1 (50 g ha-1 applied once, 50 g ha-1 applied twice, 50 g ha-1 applied three times, 100 g ha-1 applied once, 100 g ha-1 applied twice, and 100 g ha-1 applied three times). Prohexadione-Ca application changed the distribution pattern of tuber size in both cultivars. A rate of 100 g ha-1 prohexadione-Ca was applied three times between the stages of tuber initiation and tuber bulking, making the haulm length of the plants short for a long time. Prohexadione-Ca application did not alter the tuber yield and quality of the cultivar Agata, but 50 g ha-1 applied three times or 100 g ha-1 applied twice increased tuber yield in the cultivar Mondial. Only in the cultivar Mondial, 50 g ha-1 prohexadione-Ca applied three times increase tuber dry matter, starch, and protein contents. |
| Databáze: | Directory of Open Access Journals |
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