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Doctoral Thesis
DOI
https://doi.org/10.11606/T.11.1994.tde-20230818-145324
Document
Author
Full name
Sérgio Ari Ribeiro
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
Piracicaba, 1994
Supervisor
Title in Portuguese
Comparação entre cultivo de plantas em vasos e no campo
Keywords in Portuguese
CRESCIMENTO VEGETAL
CULTIVO DE PLANTAS
CULTIVO EM VASO
Abstract in Portuguese
O presente trabalho teve por finalidade a comparação entre cultivo de plantas em vasos e no campo, avaliando-se quantitativamente as possíveis diferenças através de atributos relacionados aos fatores determinantes do desenvolvimento de plantas em vasos e no campo. O delineamento experimental utilizado foi inteiramente ao acaso, com quatorze tratamentos e cinco repetições. Cultivaram-se plantas de milho (Zea mays, L.) em vasos de cerâmica de três tamanhos diferentes, contendo solo peneirado (malha 2 mm) e não peneirado, colocados na superfície do solo e enterrados que, num esquema fatorial, totalizaram doze tratamentos. O cultivo de milho em covas também realizou-se em solo peneirado e não peneirado, correspondendo a dois tratamentos adicionais. Os resultados obtidos permitem concluir que: 1. O cultivo de plantas em vasos apresenta diferenças em comparação ao cultivo de plantas no campo. As plantas cultivadas em covas (no campo) apresentam melhor desenvolvimento vegetal e produção comparadas às cultivadas em vasos, que sofrem limitação de espaço físico, água e nutrientes. 2. O tamanho do vaso empregado (volume) tem efeito sobre o desenvolvimento da planta, pois o volume de terra contido no vaso determinará as condições físicas e químicas para as plantas, que poderão ser tão próximas às do campo quanto maior for o tamanho do vaso. 3. O cultivo de plantas com solo peneirado tem efeito sobre o comportamento das plantas. O peneiramento da terra modifica a estrutura natural da terra e, consequentemente, a movimentação do ar e da água, e do sistema radicular das plantas. Poderá, portanto, favorecer o comportamento das plantas em relação ao solo natural.
Title in English
Comparison between plants cultivated in pots and in the field
Abstract in English
This study was done with the purpose of obtaining information on the comparison between the behavior of plants grown in pots and in the field, through the quantitative measurement of selected plant morphological attributes. The experiment was conducted according to a randomized block design complete with fourteen treatments and five replications. Maize plants (Zea mays, L.) used as the test plant were grown in ceramics pots of three sizes (2, 4 and 6 liters’ capacity), containing either screened soil (2 mm mesh) or non-screened soil. One complete set of pots was placed on the terrain’s surface and another was placed in holes dug in the ground. Thus a total of 12 pot treatments plus 2 additional field treatments (screened soil and undisturbed soil) brought the total to 14 treatments with five replications each. The results obtained and the interpretation of the statistical analysis led to the following conclusions: 1. The cultivation of plants in pots exhibit differences in comparison with plants grown in the field which exhibit the best vegetative and yield performance as compared with plants cultivated in pots, which are hindered by physical limitations (space, water and nutrients). 2. The pot-size employed (capacity) effects the development of the plant because the volume of soil in the pot determines the physical and chemical conditions for plants, which will be closer to field conditions the larger the pot-size. 3. Screened soil as growing medium for plants affects the normal growth of the plants. Screening of the soil modifies its original physical structure, and consequently the movement of air and water, and the growth of the plant’s root system into the soil. It may, therefore, favor plant growth and development in relation to natural soil.
 
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Publishing Date
2023-08-18
 
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