ABSTRACT:The flowering stage, directly influences the satisfactory yield of the crop, because the number of pods per plant depends on the number of open flowers, which, in turn, is very susceptible to climatic and management factors. The objective of this study was to evaluate the effect of different water replenishments on the number of flowers per inflorescence and on the number of pods in the bean cultivars Napoli and Contender. The study was conducted at the Universidade Estadual de Goiás, Câmpus Ipameri, beans were planted in May 2015, and the experimental design of randomized blocks was analyzed in a 5x2 sub-divided plots scheme, in three blocks. The plots were constituted of the irrigation levels determined by the water replenishment (RH) corresponding to 25; 50; 75; 100 and 125% of the evaporation of the Pichet evaporimeter, the subplots the pod bean, Napoli and Contender. The number of flowers per inflorescence, the color of the flowers, the average length of the inflorescences and the number of pods per inflorescence were determined. The cultivar Contender showed earlier flowering than the Napoli, regardless of the applied water depth. The period for pod formation was 8 and 14 for Contender and Napoli, respectively, but the highest number of pods was observed in the Napoli variety. KEYWORDS FLORAÇÃO, INFLORESCENCIA E NÚMERO DE VAGENS NAS CULTIVARES DE FEIJÃO VAGEM NAPOLI E CONTENDER
The effect was studied of the irrigation blades on the physiological quality and uniformity of the seeds of bean, cultivars Napoli and Contender, harvested in may 2016 in an area belonging to 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 on three sheets of paper germitest moistened with demineralized water. Them, they were taken to germinator regulated at 25°C. The germination indexes, germination speed, hard seeds, dormant and dead, seedlings with small defect index, seeds with secondary infection, and intact seedlings were evaluated. The experimental design was a completely randomized design in a 2 x 5 factorial scheme (cultivars x irrigation blades), with 4 replicates. The physiological quality of the seeds was evaluated by means of the germination and vigor test, and the results measured in percentage. The means were compared by the Tukey test at 5% probability. The seeds that presented the highest physiological quality and uniformity in germination were from the Contender cultivar, in the 100% and 125% irrigation blades. For cultivar Napoli, the rates were 80.5% to 90% in the irrigation blades of 25% and 125%. Seeds with higher indexes showed better performance in both cultivars studied for both quality and vigor.
Hancornia speciosa is a fruit tree that is in the process of domestication. This time the propagation in vitro when well developed can promote conditions for the production of quality seedlings for this fruit. In vitro culture technologies are of great importance for conservation programs of genetic resources and genetic improvement of mangabeira. The objective of this study is to establish a methodology the micropropagation of Hancornia speciosa, Gomes, of three varieties (cuyabensis, gardneri and pubescens) by in vitro germination of seeds under different growth regulators. Fruits were collected at School of Agronomy of the Federal University of Goiás, transported to the Laboratory of Biotechnology, Federal Institute Campus Urutaà - Goiás, inoculated for germination in test tubes containing MS growth medium with 50% of salts concentrations, with five different concentrations of IBA. It was observed that the in vitro germination of cuyabensis, gardneri, and pubescens were 66.00 %, 64.05 % and 76 %, respectively. The beginning of germination occurred from three days for gardneri variety, six days for pubescens variety, and eigh day for cuyabensis variety, extending to the 16 days for gardneri variety, and 28 days for the other varieties. Explants of different varieties differ in their manifestations when cultured in vitro. The aseptic method was effective for the control of fungal agents
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.
It is of great interest the development of research that subsidizes its cultivation in protected environment in the different climatic regions of the country, especially those necessary for the proper management of irrigation. There fore, the objective of this study was to evaluate the effect of water stress caused by the reduction of water availability in the soil on lettuce development and production in a protected environment. The experiment was conducted in a greenhouse at the State University of Goiás -UEG, Camps Ipameri. The treatments were composed of the combination of cultivars (Lettuce Americana Delicia and Lettuce Rainha de PALAVRAS-CHAVE:Estresse hídrico; lâmina de água; manejo da irrigação.
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