Foliar application of potassium improves fruit quality and yield of tomato plants

• Autorzy: Afzal I. , Hussain B. , Basra S. M. A. , Ullah S. H. , Shakeel Q. , Kamran M.

Warianty tytułu

PL

Dolistne zastosowanie potasu poprawia jakość owoców i plon roślin pomidora

• Języki publikacji: EN

Abstrakty

EN

Tomato is well known regarding its quality and nutritional value in all over the world but imbalances of fertilizer nutrients severely affect the quality of tomato. To investigate the specific contribution of potassium to yield and quality of tomato, a field experiment was conducted on two tomato cultivars, Nagina and Roma. Foliar application with varying levels (0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9 and 1.0%) of potassium solutions was applied to the plants and compared with control (without K). Exogenous application of 0.6% K significantly improved plant height, lycopene content, potassium, fruit weight and diameter. Exogenous application of 0.5, 0.6 and 0.7% K maximally improved ascorbic acid contents of both tomato cultivars whereas 0.4 and 0.8% did not improve ascorbic acid contents. Due to positive correlation between K nutrition and fruit quality attributes, exogenous application of an appropriate K level can contribute to higher yield and better quality of tomato fruits. Among all potassium levels, 0.5–0.7% K maximally improved performance of tomato plants of both cultivars.

PL

Pomidor to dobrze znane na całym świecie źródło składników odżywczych, ale brak równowagi substancji odżywczych w nawozach wpływa na jego jakość. Doświadczenie polowe przeprowadzono na dwóch odmianach pomidora, Nagina i Roma, w celu zbadania wpływu potasu na plon i jakość pomidora. Roztwory potasu w różnych dawkach (0,1; 0,2; 0,3; 0,4; 0,5; 0,6; 0,7; 0,8; 0,9 oraz 1,0%) zastosowano dolistnie i porównano z kontrolą (bez K). Egzogenne zastosowanie 0,6% K istotnie poprawiło wysokość roślin, zawartość likopenu, zawartość potasu, a także wagę i średnicę owoców. Egzogenne zastosowanie 0,5, 0,6 i 0,7% K maksymalnie poprawiło zwartość kwasu askorbinowego w obydwu odmianach, natomiast zastosowanie 0,4 i 0,8% nie wywołało takiego efektu. Ze względu na pozytywną korelację między odżywianiem K a jakością owoców, egzogenne zastosowanie właściwego poziomu K może przyczynić się do wyższego plonu i lepszej jakości owoców pomidora. Spośród wszystkich poziomów potasu, 0,5–0,7% K w sposób maksymalny poprawiał wydajność roślin pomidora obu odmian.

Słowa kluczowe

EN

potassium fertilization; foliar application; fruit quality; fruit; yield; tomato plant; Lycopersicon esculentum

• Wydawca: -
• Czasopismo: Acta Scientiarum Polonorum. Hortorum Cultus
• Rocznik: 2015
• Tom: 14
• Numer: 1
• Opis fizyczny: p.3-13,fig.,ref.

Twórcy

autor

Afzal I.

• Seed Physiology Lab, Department of Crop Physiology, University of Agriculture, Faisalabad, Pakistan

autor

Hussain B.

• Seed Physiology Lab, Department of Crop Physiology, University of Agriculture, Faisalabad, Pakistan

autor

Basra S. M. A.

• Seed Physiology Lab, Department of Crop Physiology, University of Agriculture, Faisalabad, Pakistan

autor

Ullah S. H.

• Seed Physiology Lab, Department of Crop Physiology, University of Agriculture, Faisalabad, Pakistan

autor

Shakeel Q.

• Ayub Agricultural Research Institute, Faisalabad, Pakistan

autor

Kamran M.

• Seed Physiology Lab, Department of Crop Physiology, University of Agriculture, Faisalabad, Pakistan

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