MOISTURE LOSS DYNAMICS IN SOME INBRED LINES, PARENTAL FORMS OF MAIZE HYBRIDS, CREATED AT ARDS TURDA PUBLISHED

Al. GHEŢE, Ana COPÂNDEAN, I. HAŞ, M. DUDA, Voichița HAȘ, Emilia TINCA, Roxana E. CĂLUGĂR, A. VARGA, Cristina MOLDOVAN
The main purpose of the research was to characterize the inbred lines from the capacity of moisture loss point of view, in the shortest amount of time after the cob reached maturity. Recently the search for hybrids that have the capacity to lose a lot of moisture in a short amount of time has increased, the research in the field being more focused in the favor of harvest and storage at lower costs. The originality and the degree of novelty of the research made are derived from the lack of research on the dynamics of moisture loss in maize inbred lines, from the existent germplasm at ARDS-TURDA. The limiting factor of research was represented by the weather conditions that can negatively influence the experience. The biological material taken into the study was represented by five inbred maize lines, parental forms, created at ARDS Turda , current lines used to obtain hybrids that show a high potential in creating new hybrids. The experiment was conducted in the form of an observation field. The determination of moisture loss was made in dynamic after 5 measurements were made at different time dates. Moisture loss in the biological material studied was measured using the Granomat device. The date obtained from the determination was analyzed and interpreted using a specialized software. Three different lines were noted that presented a good moisture loss rhythm, one being an early line and another a late line compared to the average of the studied inbred lines. The obtained results can be useful, especially in the improvement of maize lines and in creating new hybrids that can reach a high level of competitiveness on the agricultural market. Creating new hybrids that have a good moisture loss rhythm is very important because a high rate of drying in the field can reduce the costs of production for farmers and growers, meaning reduced costs in artificial drying and reducing economic loss due to late harvest. Alongside the economic loss there is also the added loss of impairments in seed quality.
inbred lines, maize, hybrids, moisture loss, dynamics
Presentation: oral

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