Cruzamentos entre linhagens tropicais de milho doce e testadores com introgressão de germoplasma temperado

Pós-graduação em Agronomia (Horticultura) - FCA

Diversidade fenotípica e molecular de cultivares brasileiras de soja portadoras de gene RR

Pós-graduação em Agronomia (Genética e Melhoramento de Plantas) - FCAV

Sobrevivência de Fusarium tucumaniae, agente causal da podridão vermelha da raiz da soja, em condições de campo

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Culturas de cobertura em região de inverno seco para semeadura direta de soja

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Avaliação de variedades de mandioca no nordeste do Estado do Pará

Pós-graduação em Agronomia (Agricultura) - FCA

Interferência da comunidade de plantas daninhas na cultura da soja em função do espaçamento de semeadura

Pós-graduação em Agronomia (Agricultura) - FCA

Comportamento de genótipos de feijão (Phaseolus vulgaris L.) na época das águas em São Manuel - SP

Pós-graduação em Agronomia (Agricultura) - FCA

Variabilidade espacial de atributos do solo e sua relação com características agronômicas de genótipos de uvaieira (Eugenia pyriformis, Cambess)

Pós-graduação em Agronomia (Ciência do Solo) - FCAV

Estudo genético e influência de caracteres na seleção de genótipos superiores de soja

Pós-graduação em Agronomia (Genética e Melhoramento de Plantas) - FCAV

Influência do Extrato Pirolenhoso no desenvolvimento e crescimento de plantas de milho

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Caracterização de genótipo de cajazeiras

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Identificação de raças de Bremia lactucae no Estado de São Paulo e desenvolvimento de linhagens de alface-crespa resistentes

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Estimativas de heterose e capacidades de combinação em cebola para resistência a raiz rosada

Pós-graduação em Agronomia (Proteção de Plantas) - FCA

Popping expansion and yield responses of popcorn cultivars under different row spacings and plant populations

The objective of this work was to evaluate the agronomic traits and the popping expansion index of three Brazilian popcorn cultivars under different row spacings and plant populations. The trials were performed during two crop seasons, under field conditions. The experimental design used was a randomized complete block, in a split-split plot, with 27 treatments and four replicates. Treatments were represented in a triple factorial arrangement: three row spacings (0.40, 0.60, and 0.80 m), three plant populations (40,000, 60,000, and 80,000 plants per hectare), and three popcorn cultivars (IAC-TC 01, IAC 12, and Zelia). The increase in plant population causes a reduction in the number of grains per ear, lower prolificacy, and grain weight loss. Cultivar grain yield is affected by row spacing and popcorn plant population. Cultivar IAC 12 shows highest grain yield under row spacings of 0.40 and 0.60 m and plant population between 60,000 and 80,000 plants per hectare. The popping expansion index is not affected by row spacing or plant population.

Corn productivity in function of surface application of lime in differents management systems and cultural preparation

The evaluation of technologies employed at the agricultural production system such as crop rotation and soil preparation, both associated with crop-livestock integration, is crucial. Therefore, the aim of the present study was to evaluate the incorporation of lime for three no-tillage systems and cultural managements in system of crop-livestock integration, with emphasis on corn grain yield. The experiment was conducted from January 2003 to April 2005 at Selvíria city, MS, in Dystroferric Red Latosol, clay texture. The experimental design was randomized blocks with split plots consisted of three main treatments, aimed the soil physics conditioning and the incorporation of lime: PD - No-no-tillage; CM - minimum no-tillage, and PC - conventional no-tillage; and of two secondary treatments related to the management: rotation and crop succession, with four replications. Data on agronomic traits of maize were analyzed: plant height, stem diameter, height of the first spike insertion, 100 grains weight and grain yield. The results showed that the maize produced under the system of crop-livestock integration is quite feasible, showing that grain yields are comparable to averages in the region and the different soil physical conditioning and incorporation of lime did not influence the corn yield as well as the cultural managements, rotation and succession, did not affect the maize crop behavior after two years of cultivation.