Effects of Irrigation and Nitrogen Rates on Growth, Yield, and Quality of Muskmelon in Semiarid Regions

Kırnak, Halil; Higgs, David; Kaya, Cengiz; Taş, İ̇smail

doi:10.1081/pln-200052635

Cited by 76 publications

(90 citation statements)

References 20 publications

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“…Rates above this amount produce excessive vegetative growth, with no effect or with a negative effect on the fruit growth. The different growth behaviours with regard to N observed in the vegetative (leaf and stem) and reproductive parts (fruit) is in agreement with Kirnak et al (2005) for melon. This is due to the fact that heavy N applications can stimulate the vegetative growth at the expense of fruit yield (Mills and Jones, 1979;Hartz and Hochmuth, 1996).…”

Section: Resultssupporting

confidence: 64%

“…The curvilinear relationship between relative yield and leaf N concentration was significant and showed low R 2 (0.63). The optimum N concentrations are lower than those obtained by Kirnak et al (2005) in galia melon, who obtained less fruit yield than we obtained. In accordance to our results, Marr and Lamont (1992) obtained mean values of leaf N concentration of 20.0 g kg -1 .…”

Section: Resultscontrasting

confidence: 47%

“…Different functions were obtained to relate yield to the amount of applied fertilizer. Unlike Kirnak et al (2005), who obtained a good second-degree function, in our case, the fruit yield shows a different behaviour when the optimum N amount has not been reached and when this amount has been exceeded. In these cases, the use of symmetrical functions, such as a second-degree polynomial, usually show a worse adjustment and also the behaviour of the crop is less explained than when two different functions are obtained.…”

Section: Resultsmentioning

confidence: 72%

“…Kirnak et al (2005) et al (2006) 165.75 g m -2 for total aerial dry biomass, with similar N amounts in relation to ours, 120 and 98 kg ha -1 , respectively. These variations could be due to the different cultivar used and different edaphoclimatic conditions.…”

Section: Resultsmentioning

confidence: 83%

“…The uptake of N and its accumulation in the parts of melon plants over the growing season have been studied by researchers for some cultivar groups of melon such as Reticulatus (Purqueiro et al, 2003;Kirnak et al, 2005), Cantalupensis (Pérez-Zamora and Cigales-Rivero, 2001;Fagan et al, 2006), and the results are different and sometimes contradictory. In most cases, these researchers show experiments located in greenhouses and in greenhouse hydroponics (Fukutoku et al, 2000;Fogaça et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Growth dynamics and yield of melon as influenced by nitrogen fertilizer

Castellanos

Cabello

Cartagena³

et al. 2011

Sci. agric. (Piracicaba, Braz.)

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Nitrogen (N) is an important nutrient for melon (Cucumis melo L.) production. However there is scanty information about the amount necessary to maintain an appropriate balance between growth and yield. Melon vegetative organs must develop sufficiently to intercept light and accumulate water and nutrients but it is also important to obtain a large reproductive-vegetative dry weight ratio to maximize the fruit yield. We evaluated the influence of different N amounts on the growth, production of dry matter and fruit yield of a melon 'Piel de sapo' type. A three-year field experiment was carried out from May to September. Melons were subjected to an irrigation depth of 100% crop evapotranspiration and to 11 N fertilization rates, ranging 11 to 393 kg ha -1 in the three years. The dry matter production of leaves and stems increased as the N amount increased. The dry matter of the whole plant was affected similarly, while the fruit dry matter decreased as the N amount was increased above 112, 93 and 95 kg ha -1 of N are sufficient for adequate plant growth, development and maximum production. To obtain fruit yield close to the maximum, the leaf N concentration at the end of the crop cycle should be higher than 19.5 g kg -1 . Key words: LAI, LAD, dry matter accumulation, production functions, leaf nitrogen concentration Dinâmica do crescimento e da produtividade do melão em resposta ao fertilizante nitrogenado RESUMO: O nitrogênio (N) é um nutriente importante para a produção de melão (Cucumis melo L.), porém existe pouca informação sobre a quantidade necessária para se obter um balanço entre o crescimento e a produtividade. Os órgãos vegetativos do melão precisam se desenvolver suficientemente para interceptor luz, acumular água e nutrients, mas também é importante alcançar uma grande relação de massa seca produtiva-vegetativa para maximizar a produção de frutos. Investigou-se a influência de quantidades de N no crescimento, na produção de matéria seca e na produtividade do melão tipo 'Pele de sapo'. Foi conduzido experimento com três anos de duração, de maio a setembro, com irrigações de 100% da evapotranspiração e 11 doses de adubação de N, no intervalo de 11 a 393 kg ha -1 em três anos. A produção de massa seca de folhas e caules aumentou com o aumento das doses de N. A matéria seca da planta toda foi afetada de maneira semelhante, enquanto a dos frutos decresceu com o aumento de N acima de 112, 93 e 95 kg ha A dose mais baixa de N reduziu a produtividade de frutos em 21%, enquanto a dose mais alta aumentou o crescimento vegetative, LAI e a duração de área foliar (LAD), mas reduziu a produtividade em 24% em relação ao tratamento N 93 . Aplicações excessivas de N aumentam o crescimento vegetativo às expensas do crescimento vegetativo. Para este tipo de melão, doses da ordem de 90-100 kg ha -1 de N são suficientes para crescimento adequado e produção máxima. Para obter produções próximas ao máximo, a concentração de N na folha no final do ciclo da cultura não deve ser maior que 19.5 g kg -1 . Palavras chave...

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Section: Resultssupporting

confidence: 64%

Section: Resultscontrasting

confidence: 47%

Section: Resultsmentioning

confidence: 72%

Section: Resultsmentioning

confidence: 83%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Growth dynamics and yield of melon as influenced by nitrogen fertilizer

Castellanos

Cabello

Cartagena³

et al. 2011

Sci. agric. (Piracicaba, Braz.)

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Nitrogen‐use efficiency traits of mini‐watermelon in response to grafting and nitrogen‐fertilization doses

Colla

Rouphael

Mirabelli

et al. 2011

Z. Pflanzenernähr. Bodenk.

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Two experiments were conducted to study the effect of grafting on nitrogen-use efficiency (NUE) in mini-watermelon plants. In the first study, mini-watermelon plants (Citrullus lanatus [Thumb.] Matsum. and Nakai cv. Minirossa) either ungrafted or grafted onto Macis, Vita (Lagenaria siceraria [Mol.] Standl.), PS1313, and RP15 (Cucurbita maxima Duchesne × Cucurbita moschata Duchesne) rootstocks grown in hydroponics were compared in terms of shoot dry biomass, leaf area, root-to-shoot ratio, SPAD index, shoot N uptake, and nitrate reductase (NR) activity 40 d after transplantation in response to nitrate concentration in the nutrient solution (0.5, 2.5, 5, 10, 15, or 20 mM of NO 3 ). In the second experiment, the suitability of a selected rootstock with high NUE (Vita) to improve crop performance and NUE of grafted mini-watermelon plants was evaluated under field conditions. In the hydroponic experiment mini-watermelon grafted onto Vita rootstock needed the lowest nitrate concentration (1.31 mM of NO3) in the nutrient solution to reach half maximum shoot dry weight. Total leaf area, SPAD index, and shoot N uptake increased in response to an increase of N concentration in the nutrient solution. At 2.5 mM NO 3 , mini-watermelon grafted on either Vita or RP15 had the highest NR activity whereas no significant difference was observed at 10 mM NO 3 . The open-field study indicated that increasing N-fertilization rates from 0 to 100 kg ha–1 improved total and marketable yields of mini-watermelon plants while decreasing NUE. When averaged over N levels, the marketable yield, NUE, N-uptake efficiency, and N-utilization efficiency were significantly higher by 39%, 38%, 21%, and 17%, respectively, in Minirossa grafted onto Vita compared to ungrafted Minirossa plants. Therefore, grafting miniwatermelon plants onto selected rootstocks can be used as a quick and effective method for improving productivity and NUE

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