Estimativa de plastocrono em crambe

Toebe, Marcos; Lopes, Sidinei José; Storck, Lindolfo; Silveira, Tatiani Reis da; Milani, Marília; Casarotto, Gabriele

doi:10.1590/s0103-84782010005000054

Cited by 16 publications

(13 citation statements)

References 19 publications

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“…Crambe is considered a cold-tolerant crop with potential for biodiesel industrial production due to its high lubricating potential and oil content in its composition, corresponding 30 and 45 % in seeds (Toebe et al, 2010). In addition, crambe has the advantage of being able to be cultivated in the off-season.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Seed Vigor Tests for Crambe abyssinica

Soares¹,

Freitas²,

Filho³

et al. 2018

JAS

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Vigor tests are important mainly to identify differences associated to lots performance in field conditions. The objective of this study was to define the most appropriate tests to evaluate the crambe (Crambe abyssinica) seeds vigor. Seven seed lots of crambe were subjected to the standard germination (on the first and last count), germination speed index (GSI), primary root protrusion speed index (PRPSI), seedling length dry and weight seedling, water stress test using PEG 6000 at -0.2 MPa, electrical conductivity and cold test without soil. Crambe lots studied had germination percentages varying from 54 to 80.5%. The GSI, on the first count of water stress and electrical conductivity test ranked lots between two vigor classes The PRPSI, seedling length, seedling dry weight and last count of water stress tests were less sensitive to evaluate vigor for crambe seed. The cold test without soil and the first count of standard germination test were capable to dishtinguish lots more efficiently than the standard germination test on last count by ranking four of the seven seed lots studied.

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Section: Introductionmentioning

confidence: 99%

Assessment of Seed Vigor Tests for Crambe abyssinica

Soares¹,

Freitas²,

Filho³

et al. 2018

JAS

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“…Fries) is an oilseed crop native to the Mediterranean region and is cultivated in the United States, Canada and Europe (Adamsen & Coffelt, 2005). Its seeds contain 30 to 45 % oil, making it a promising crop for industrial use or as biofuel (Adamsen & Coffelt, 2005;Souza et al, 2009;Toebe et al, 2010). In Brazil, this oilseed crop is rather unknown, but cultivation has steadily expanded since the establishment of the first cultivar in the country in 2007 (Roscoe & Delmontes, 2008).…”

Section: Introductionmentioning

confidence: 99%

Effect of fertilization at sowing on nutrition and yield of crambe in second season

Soratto

Souza-Schlick

Fernandes

et al. 2013

Rev. Bras. Ciênc. Solo

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SUMMARYThe interest in crambe (Crambe abyssinica) cultivation in Brazil is on the rise, whereas information on the nutrient requirements for this crop is scarce. The objective of this work was to evaluate the effect of nitrogen-phosphorus-potassium (N-P 2 O 5 -K 2 O formula 8:28:16) fertilization (0, 150, and 300 kg ha -1 ) on crambe shoot biomass production, grain and oil yields, and nutrient extraction and exportation in the second growing season after soybean. The experiment with a Haplorthox (Dystroferric Red Latosol) was carried out for two years in Botucatu, São Paulo State, Brazil. A randomized complete block design with eight replications was used. Fertilization with NPK at sowing increased the shoot biomass production, grain yield, grain oil content, as well as nutrient extraction and exportation at harvest. In the fertilized treatments, the average amounts of nutrients extracted per hectare were 91 kg K, 71 kg N, 52 kg Ca, 9.4 kg P, 9.4 kg Mg, 7.9 kg S, 2,348 g Fe, 289 g Zn, 135 g Mn, and 18.2 g Cu; while the average values of nutrient exportation per hectare were 54 kg N, 20 kg K, 12.3 kg Ca, 10 kg P, 6.6 kg S, 3.2 kg Mg, 365 g Zn, 60 g Fe, 50 g Mn, and 7.3 g Cu, with NPK fertilizer application.

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“…É considerada cultura tolerante ao frio com potencial para produção industrial de biocombustíveis, pelo elevado potencial lubrificante e teor de óleo em sua composição, com valores entre 30 e 45% da semente (WEISS, 2000). Na cultura de crambe, pesquisas quanto ao tamanho e forma de parcela (MEIER; LESSMAN, 1971), às relações entre caracteres (LESSMAN, 1975;MASTEBROEK et al, 1994) e às estimativas de temperatura base (Kmec et al, 1998), de área foliar (TOEBE et al, 2010a) e de plastocrono (TOEBE et al, 2010b) têm sido realizadas. Também, estudos sobre: ocorrência de Alternaria brassicicola ( C ARNEIRO et al, 2009); caracterização química de sementes e tortas (SOUZA et al, 2009); análise energética (JASPER, et al, 2010); e delimitação de áreas adequadas (FALASCA et al, 2010) têm sido desenvolvidos na cultura de crambe.…”

Section: Introductionunclassified