Growth, gas exchange and yield of peanut in frequency of irrigation

Sousa, Geocleber Gomes de; Azevedo, Benito Moreira de; Fernandes, Carlos Newdmar Vieira; Viana, Thales Vinícius de Araújo; Silva, Maria Lilian Santos

doi:10.1590/s1806-66902014000100004

Cited by 12 publications

(12 citation statements)

References 17 publications

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“…The irrigation frequency, defined by the interval between two successive irrigations should be used in a way so as not to compromise the water needs of the plants in their different phenological stages (Sousa et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Irrigation and fertigation frequencies with nitrogen in the watermelon culture

et al. 2014

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This study evaluates the influence of different irrigation frequencies and different nitrogen fertigation frequencies on the growth performance of the watermelon (Citrullus lanatus) culture. Two experiments were conducted at the Paraguay farm in the Cruz municipality, Ceará, Brazil. They was randomized blocks design with six treatments and four replications. The irrigation frequency experiment consisted of the application of different irrigation frequencies. The treatments were: DM -daily irrigation in the morning with 100% daily dosage; DT -daily irrigation in the afternoon, with 100% daily dosage; DMT -twice daily irrigation, with 50% daily dosage in the morning and 50% daily dosage in the afternoon; 2D -irrigation every two days; 3D -irrigation every three days and 4D -irrigation every four days. To the experiment with different nitrogen fertigation frequencies, the treatments used were: 2F -2 fertigations in a cycle; 4F -4 fertigations in a cycle; 8F -8 fertigations in a cycle; 16F -16 fertigations in a cycle; 32F -32 fertigations in a cycle and 64F -64 fertigations in a cycle. We evaluated the marketable yield (PC), fruit weight (M), polar diameter (DP), equatorial diameter (DE), shell thickness (EC) and soluble solids (SS). The irrigation frequency treatments influenced all variables significantly, with twice daily irrigation (DMT, 50% in the morning and the 50% in the afternoon) promoting the highest productivity (69.79 t ha Key words: Citrullus lanatus, irrigation management, chemigation, nitrogen fertilizing. Frequências de irrigação e fertirrigação com nitrogênio na cultura da melancia ResumoCom o objetivo de avaliar a influência de diferentes frequências de irrigação e fertirrigação nitrogenada no desempenho produtivo da cultura da melancia (Citrullus lanatus), realizaram-se dois experimentos no sítio Paraguai, município de Cruz, Ceará. O delineamento adotado foi o de blocos ao acaso com seis tratamentos e quatro repetições. No experimento com irrigação, os tratamentos consistiram na aplicação de diferentes frequências de irrigação, sendo: DM -diariamente (100% de manhã); DTdiariamente (100% a tarde); DMT -diariamente (50% de manhã e 50% a tarde); 2D -a cada dois dias; 3D -a cada três dias; e 4D -a cada quatro dias. No experimento com diferentes frequências de fertirrigação nitrogenada, os tratamentos empregados foram: 2F -2 fertirrigações no ciclo; 4F -4 fertirrigações no ciclo; 8F -8 fertirrigações no ciclo; 16F -16 fertirrigações no ciclo; 32F -32 fertirrigações no ciclo; e 64F -64 fertirrigações no ciclo. Avaliaram-se: produtividade comercial (PC); massa média do fruto (M); diâmetro polar (DP) e equatorial (DE); espessura da casca (EC); e teor de sólidos solúveis (SS). Os tratamentos com frequência de irrigação influenciaram significativamente todas as variáveis, sendo que a irrigação diária (50% de manhã e 50% a tarde) foi responsável pela maior produtividade (69,79 t ha -1 ). As diferentes frequências de fertirrigação também influenciaram significativamente todas as variáveis, com exceçã...

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Section: Introductionmentioning

confidence: 99%

Irrigation and fertigation frequencies with nitrogen in the watermelon culture

et al. 2014

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“…Com relação à altura das plantas, não houve interferência dos fatores em estudo, com altura média de 35,9 cm, valores próximos aos encontrados por Sousa et al (2014) trabalhando com amendoim ereto na mesma região, no município de Fortaleza-CE, em função da frequência de irrigação, obtiveram maiores valores de altura para o intervalo de dois dias entre as irrigações, com altura de aproximadamente 38 cm. Na Tabela 2, verifica-se que a única variável que apresentou diferença significativa para todos os fatores foi o número de vagens por planta para os fatores sistema de plantio e adubação (p<0,01), e cultivar (p<0,05).…”

Section: Resultsunclassified

Resposta À Adubação De Duas Cultivares De Amendoim Em Dois Sistemas De Semeadura

Costa¹,

Silva²,

Filho³

et al. 2017

Agrarian

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“…Subramaniam and Maheswari (1990) reported that leaf water potential, transpiration rate and photosynthetic rate decreased progressively with increasing duration of water stress in peanut. The gas exchange variables at 60 DAS were affected by various frequency of irrigation and the best results for gaseous exchange characteristics were gained by highest irrigation frequency tested (every 2 days) in peanuts (Sousa et al 2014). The transpiration efficiency (TE) is the WUE int (the ratio of instantaneous CO 2 assimilation (A) to transpiration at leaf level.…”

Section: Discussionmentioning

confidence: 99%

Photosynthetic characteristics of peanut genotypes under excess and deficit irrigation during summer

Kalariya

Singh

Goswami

et al. 2015

Physiol Mol Biol Plants

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In a field experiment three irrigation treatments were given to twelve peanut genotypes through drip. At 80 days after sowing (DAS) the amount of irrigation applied was 20 % higher than the evaporative demand (ET) in T 1 , 25 % less than ET in T 2 and 48 % less than ET in T 3 against the cumulative evaporative demand of 412 mm. The relative water content (RWC) of peanut leaves reduced by cutting irrigation from 93.5 % in T 1 to 91.1 % in T 2 and 77.2 % in T 3 but, net photosynthetic rate (P N ) was higher in T 2 (29.6 μmol m -2 s ) which was statistically at par with GG 20, ICGV 86590, TAG 24, SB XI, TMV 2 and TPG 41. The nonphotochemical quenching (NPQ) varied with different irrigation treatment with lowest in T 2 and highest in T 3 . The deepoxidation state (DeS) was 38 % in T 1 and T 2 but, increased to 47 % in T 3 due to the sever water deficit stress. Applying 20 % higher irrigation than the ET demand (T 1 ) does not warrant any extra benefits in terms of higher photosynthesis in peanut at 75-80 DAS. Further, a reduction of 25 % of the ET (T 2 ) in peanut seems to be the ideal condition for photosynthesis and desirable chlorophyll fluorescence parameters at 80 DAS. Girnar 3 and ICGV 91114 showed NPQ value above 2.2 and higher de-epoxidation state, maintained least deviation in Fv/Fm and Fv'/Fm' under severe water deficit condition are promising peanut genotypes.

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Growth, gas exchange and yield of peanut in frequency of irrigation

Cited by 12 publications

References 17 publications

Irrigation and fertigation frequencies with nitrogen in the watermelon culture

Irrigation and fertigation frequencies with nitrogen in the watermelon culture

Resposta À Adubação De Duas Cultivares De Amendoim Em Dois Sistemas De Semeadura

Photosynthetic characteristics of peanut genotypes under excess and deficit irrigation during summer

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