The objective of this study was to evaluate the behavior of three hybrids of the genus Eucalyptus and Eucalyptus camaldulensis cultivated at Fazenda Buritis, Sorriso municipality, Mato Grosso State, Brazil, using DAP, height, bark volume, IMA, stem quality and survival. It was done a DIC, distributing 4 plots of 343m2, 49 trees per plot, in each of the 4 cultivated materials in a spacing of 3.5 x 2m, and 3 data collections were carried out, from January 2013 to January 2014 The results show that clones I144 and H13 have higher mean DAP, height, volume with IMA bark, higher percentage of trees with straight stem and higher survival rates indicating that the soil and climatic conditions of the city of Sorriso-MT are presented as suitable for the cultivation of these genetic materials

The combine harvest for soybean crops market are currently available two types of combine with header or platform, one of conventional with revolving reel with metal or plastic teeth to cause the cut crop to fall into the auger header and the other called "draper" headers that use a fabric or rubber apron instead of a cross auger, there are few test about performance of this combine header for soybean in Mato Grosso State. The aim of this work was to evaluate the soybean harvesting quantitative losses and performance using two types combine header in four travel speed. The experiment was conducted during soybean crops season 2014/15, the farm Tamboril in the municipality of Pontes e Lacerda, State of Mato Grosso. The was used the experimental design of randomized blocks, evaluating four forward harvesting speeds (4 km h-1, 5 km h-1, 6 km h-1 and 7 km h-1), the natural crops losses were analyzed, loss caused by the combine harvester (combine header, internal mechanisms and total losses) and was also estimated the  field performance of each combine. Data were submitted to analysis of variance by F test and compared of the average by Tukey test at 5% probability. The results show the draper header presents a smaller amount of total loss and in most crop yield when compared with the conventional cross auger.

Millet is an important summer grass used as forage grass due to good bromatological characteristics and easy adaptation to Brazilian environmental conditions. However, when sowing the crop early in the southern region, situations may occur where low temperatures affect germination and seedling development. Thus, the present work had the objective of evaluating the germination and initial development of millet using Biozyme TF® biostimulant as a way to attenuate the effects of different temperatures. The experimental design was completely randomized, in a factorial scheme 3 x 5 (temperatures x doses) with four replicates each. The temperatures used were 15 °C, 20 °C and 25 °C and the doses used were: 0 (control); 0.25; 0.5; 0.75 and 1 ml kg-1. After the treatment, the seeds were evaluated by: germination test, germination speed index, shoot and root length and seedling dry mass. The data obtained were submitted to analysis of variance with Sisvar® software and, when found significant, the regression analysis was performed. The germination of millet seeds is favored, under low temperature stress conditions, with seed treatment at the dose of 0.50 ml kg-1 of biostimulant. The biostimulant does not influence millet germination speed index. Under low temperature thermal stress the biostimulant minimally increases the length and dry mass accumulation of millet seedlings and attenuates the negative effects on root growth. The accumulation of dry mass of the roots decreased with increasing dose of the biostimulant under thermal stress condition.

Water contamination is much more common than imagined, because it is practically impossible today to have an ecosystem that has not suffered directly or indirectly from humans. Studies with the aim of genotoxicity and mutagenesis use bioindicators as the basis of tests, the most used are from the Allium ssp family. When we mention cytogenetic damage, the intensity depends mainly on the degree of exposure, quantity, chemical nature and of the possible combinations between the contaminants, also influenced by the characteristics and conditions of the environment in which the organisms considered bioindicators are submitted. The present work has the objective of analyzing the cytotoxic, genotoxic and mutagenic effects induced by contaminating material that cause chromosomal alterations by means of mitotic index analysis using as bioindicator Allium sativum (garlic). The experiment was carried out at the Laboratory of Cytogenetics and Culture of Vegetable Tissues at the University of the State of Mato Grosso (UNEMAT) at the Alta Floresta Campus - MT. The soil was collected and stored separately using 200 grams of each sample with three treatments: surface, 20 cm and 40 cm deep, making a tea with 200 ml of distilled water and then measuring the pH. Using a direct method where the bioindicator is submitted directly to the tea solution, awaiting the emission of roots, and the indirect method, where the bioindicator is submitted first, the stimulation of root formation for 72 hours and then is submitted to contaminating solution. The plates readings to observe the interior of the cell using crushing techniques were performed in 24, 48 and 72 hours of experiment (indirect method) and 24 hours (direct method, also measuring the roots). With the results, we can state that the material used as pollutant (soil sample) has a cytotoxic and genotoxic potential in the bioindicator material, presenting high potential in the cell cycle induction, provoking various chromosomal aberrations.

The Lagerstroemia indica L. is a representative of the family Lythraceae, is popularly known as extreme, resedá rosa or madness. It is a small tree with dense and deciduous canopy, measuring from 2 to 4m high, resistant to dry climate and environmental conditions of cities. The present work aimed to evaluate the pollen feasibility of the Lagerstroemia indica L., through the dyes of 1% Green Malignant, Lugol 2% and Alexander Reactive and 2,3,5 Triphenyl tetrazolium chloride (TTC) at the dilutions of 0.075% and 0.030%. In order to verify the pollen fertility, we used closed flowers from three populations of Lagerstroemia indica L., following the methodology of Guerra & Souza (2002), submitting the treatments. In the application of the TTC dye, anthers of fresh buds were arranged in two concentrations: 0.075% and 0.30%, being evaluated in the periods of 6:00 a.m., 12:00 a.m., 6:00 p.m. and 24:00 a.m. The use of R. dyes from Alexander, V. Malachite 1% and Lugol 2% and from TTC to determine pollen feasibility proved to be efficient in differentiating the fertile and infertile pollen from the species. In the use of TTC it is recommended to use in the 0.30% solution during 12h of fixation of the pollen granules, period in which a higher coloring average was obtained.Â

In tissue culture it is necessary to use seeds of good quality and free of pathogens in order to avoid damages in the work to be carried out in the laboratory. Therefore, strict cleaning of the seeds intended for in vitro cultivation is essential. Thus, the objective of this study was to evaluate fruit biometry, germination and morphogenesis of 'Cravo' (Citrus limonia Osbeck) and Persia Lima (Citrus aurantium) seeds in vitro submitted to different concentrations of NaClO for asepsis. Fruits of 'Cravo' lemon and Lima of Persia. Subsequently, they were transported to the Biotechnology Laboratory of the Goiano Federal Institute Campus Urutaí-GO, where they performed the biometric characterization of the fruits. The seeds of these fruits were submitted to treatment with sodium hypochlorite solution in different concentrations: 0,0; 1.0; 1.5; 2.0 and 2.5% for 10 minutes, constituting then five treatments for each variety and placed in an acclimatized growth room to analyze the results. The variables evaluated were: biometry of fruits and seedlings; oxidation indexes; germination; contamination; and types of contamination. NaClO doses were compared from 95% confidence intervals. The analyzes were performed using the glm () function of software R version 3.4.1. It was verified that the aseptic treatment with NaClO for lime and lemon was promising for the morphological processes of germination and development of seedlings, as well as for the control of contaminating agents in vitro.

The elements cobalt (Co) and molybdenum (Mo) are micronutrients of great importance for legumes, since they play a fundamental role in the fixation of atmospheric nitrogen assimilated by bacteria of the genus Bradyrhizobium. The objective of the present study was to evaluate the yield components of soybean as a function of different doses and time of application of cobalt and molybdenum via leaf. The experiment was conducted in the municipality of Vera - Mato Grosso. The treatments consisted of the combination of five doses of the micronutrient (0, 50, 100, 150 and 300 mL ha-1) with two phenologicals stages of application periods (V5, fifth node and fourth trifoliate flower and R2, full flowering)). The characteristics evaluated: dry mass of the nodules, number of nodules, number of pods per plant, grains per pod, mass of 100 grains and productivity. It is concluded that under the conditions of this experiment, the application of cobalt and molybdenum via leaf in V5 and R2 does not alter soybean nodulation. The application in the reproductive period (R2) provides a greater number of pods per plant and number of grains per pod, but does not affect productivity

Intrinsic genetic potential of each cultivar of sugarcane may determine the absorption intensity and nitrogen assimilation. It is possible to occur a lower expression of the productive potential by limitations related to low nitrate reductase (NR) activity, since this enzyme is "key" of the N metabolism. The objectives were to compare cultivars of sugarcane as the level of NR activity and its relationship to productive and nutritional variables. The experiment was conducted under condition of a greenhouse, where were grown ten sugarcane cultivars in pots of 4 dm3, filled with sand and vermiculite plus nutrients as indicated for the crop. The variables evaluated were: plant height, NR activity, dry matter (shoot and roots), N content and N accumulation and N uptake and utilization efficiency, moreover, the correlation between the variables was evaluated. The results showed that NR activity varies with the cultivar and further, that NR activity in sugarcane leaves does not correlate with the N uptake efficiency, but is positively correlated with N content and negatively with N utilization efficiency. The NR activity is not a good physiological parameter to discriminate N efficient use sugarcane genotypes

Soybeans are one of the most produced grains in the world, and because of the high cost of nitrogen fertilizers, new technologies in the inoculation of diazotrophic bacteria have been developed. The objective of this study was to evaluate the effect of Bradyrhizobium-based inoculant doses and Lipo-chito-oligosaccharide molecules (LCOs), together with bacterial protector as an additive, compared to a conventional inoculant in the inoculation of soybean seeds. The experiment was carried out in a greenhouse, with soil from a Red Oxissol of sandy texture. The experimental design was in randomized blocks with 3 replicates, the treatments being distributed in a 5 x 2 factorial scheme (2 inoculants and 5 inoculant doses). The seeds of the soybean cultivar M8866 were inoculated and seeded in the pots containing 11 L of substrate, where two plants remained for 45 days. Nine biometric-productive parameters were evaluated. Increasing the dose, regardless of the inoculant, provided an increase in root length and probably active nodules. In general, it was possible to observe statistical superiority of the inoculant with technologies integrated in relation to the conventional one, independent of the dose, when comparing the inoculants with respect to these two variables. Furthermore, the inoculant with integrated technologies provided a higher mass of fresh and dry matter of the nodules with the application of the highest inoculant dose (3.6 billion UFC mL-1). It was noted that increasing the dose of conventional inoculant did not cause the increase of fresh and dry matter mass of the nodules such as the inoculant with integrated technologies, suggesting the beneficial action of the bioprotectant and of the LCOs molecules.

The effect of water replenishment on the physiological quality and seed uniformity of Napoli and Contender bean cultivars harvested in May 2015 was studied; Contender and Japanese Yellow collected in the 2016 and 2017 harvests in the experimental area of the State University of Goiás - UEG. The experiment was installed in the Laboratory of Vegetable Production of UEG-GO. The sowing was done using four replicates of 50 seeds, distributed among three sheets of germitest paper, moistened with demineralized water. The rolls were taken to the germinator regulated at 25ºC. The experimental design was completely randomized with different cultivars, collection times and water replenishment, with 4 replicates. The germination indexes were evaluated; speed of germination; hard seeds; dormant and dead; index of seedlings with small defect; with secondary infection and intact seedlings. The physiological quality of the seeds was evaluated by means of the germination and vigor test and the results in percentage and the statistic using software R. Seeds from the different water replaces, cultivars and production times presented as promising for the cultivation in Ipameri-GO.