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Research on the Rule of Abloom and Seed Growth of Hazel

Author: LiNing
Tutor: SuShuZuo
School: Beijing Forestry University
Course: Forest cultivation
Keywords: Hazelnut Phenophase Pollen Fruit growth law Mineral nutrient elements
CLC: S664.4
Type: Master's thesis
Year: 2008
Downloads: 347
Quote: 2
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Abstract


Hazelnut (Corylus) is a the nuts A high-value economic species. Intensive production in Europe has been achieved, but the hazelnut industry development is at its infancy, many basic research not yet begun or not yet in-depth. Hazelnut sales in the Chinese market mainly wild collection, in addition, there are a lot of issues around the introduction and cultivation. Improve the yield and quality of hazelnut hazelnut cultivation in the country is the focus of the work. For such a phenomenon, drawing on the research and improve the way of other fruit trees in this area, hazelnut flowering and fruiting throughout the growing process of law. Period, the pollen growth appropriate temperature and humidity, effective pollination and fertilization of flowering phenology, fruit growth law, the content of mineral nutrients in leaves five European hazel hybrid hazel, flat hazel three kinds. Observe the whole process of the florescence of three kinds, respectively statistics phenology and flowering length of the male and female flowers, and the comprehensive analysis of the temperature conditions of the test places. Studies, hazelnuts flowering optimum temperature is about 10 ℃; female flower buds sprout temperature 4 ℃, Europe of hazelnut and hybrid hazel male flower buds sprout temperature for about 4 ℃ level hazel for about 6 ℃. Daily low temperature is less than -5 ° C the hazelnut male flower buds prone to frost damage. The three kinds female flowers flowering length hazelnut similar to 12d-13d, staminate flowering slight differences. Control the temperature and humidity conditions, hazelnut pollen growth and development process of observing pollen viability. By species, temperature, humidity, three three-factor orthogonal experimental research. Different kinds of hazelnut pollen viability. The temperature is the main factor affecting pollen viability, there are significant differences between the different levels in the temperature, the optimum temperature of 10 ℃ degrees for pollen germination. The effects of different strains of hazelnut or less. Provides a basis for the determination of effective fertilization time. The use of artificial pollination, to control pollination time investigation fruiting rate. Found that three kinds of the hazelnut effective pollination time consistency, 24h to 48h after flowering, three kinds of the hazelnut effective fertilization period is slightly different. In addition, different interspecific fruiting rate significant difference, artificial pollination can effectively improve the fruit set rate. Fertilized fruit to mature at this time on the quality of the volume of the fruit, nuts quality measurements to the hormone, while the application liquid chromatograph measured drawn: the volume and mass of the three kinds hazelnut fruit growth laws are \- fast \The Kernels growth change with time increasing. Addition of auxin (IAA), gibberellin (GA3), abscisic acid (ABA) three hormones in the growth process of the fruit was some change in the law and confirmed hormone has an important role in the growth of the fruit. Determination of mineral elements content in the fruit growing season, collecting leaves, mapping and statistical analysis found: 3 hazelnut the European hazel and hybrid hazel mineral nutrients levels close to flat hazel has several elements were significantly lower than the previous two, so we can see the level Hazel's growing slightly behind the hybrid hazel and European hazel. 3 kinds of hazelnuts in mineral elements content similar trend. And Zn 2 , Ca 2 , Mn 2 , antagonistic relationship between Cu 2 , Mn between 2 , Ca 2 , K, Zn 2 between, K Mn 2 between a synergistic relationship.

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CLC: > Agricultural Sciences > Gardening > Fruit trees gardening > Nuts (shell fruit ) > Hazelnut
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