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Study on Adaptability of Onobrychis Viciaefolia Scop.cv. "Gan Su" in Different Ecological Regions

Author: LiuXiuMei
Tutor: ZhangZuo；ShiShangLi
School: Gansu Agricultural University
Course: Grassland
Keywords: Sainfoin Ecological regions Production performance Quality
CLC: S541.4
Type: Master's thesis
Year: 2010
Downloads: 54
Quote: 1
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Abstract


Sowing year sainfoin and sainfoin winter survival rate of the second year of growth, growth stages, growth height, growth rate, number of branches, stems and leaves than fresh and dry than the regeneration rate, fresh yield, hay yield different ecological regions yield traits and nutritional quality, seed yield, number of mowing system, a comprehensive evaluation and application of gray system theory yield and quality factor, the main results are as follows: (1) the same growth years of the different ecological zones sainfoin wintering rate stability point of the highest, Yongdeng points, followed by the lowest point of collaboration. The cooperation point sainfoin sown when only grow to bud period, other points can complete the entire growth period. The growth of the second year of the three test points can be done throughout the growing period. The same ecological region sainfoin with increased growth years, the growth period presents the trend of gradually shortened. Different ecological regions the same growth years cooperation Point fertility days between the longest and shortest stability point. (2) the same growth years of the different ecological zones sainfoin plant height at the same growth stages there are significant differences (p lt; 0.05). The maximum cooperation points followed by stability point of minimum Yongdeng point. A high growth rate of the same ecological region from the branching stage to early flowering, sainfoin plants faster growth gradually slows down after the flowering stage stop growing until maturity. (3) The growth rate of different ecological regions sainfoin Yongdeng highest sowing year and the second year 0.427cm / d and 1.278 cm / d, respectively, than the average growth rate of three point respectively 5.7% and 6.4% higher, stability point slowest 0.395cm / d and 1.12cm / d, cooperation points, respectively, 0.424 cm / d and 1.205 cm / d. Sainfoin growth rate of the growth of the second year of the same ecological region is significantly higher than the growth rate of sowing year sainfoin Yongdeng, cooperation and stability, respectively, higher than 199.30%, 184.20% and 183.54%, respectively. (4) different cutting during the different sainfoin regeneration speed bud of mowing the fastest regeneration rate, flowering slowest. Different ecological regions the same growth period mowing fastest the Yongdeng point regeneration rate, the slowest point of stability. (5) The number of branches of sainfoin rising from the branching stage to early flowering, early flowering stage reaches a maximum, and then decreased. The second year of growth sainfoin number of branches was significantly higher than the sowing year sainfoin number of branches. Different ecological regions, followed by number of branches to the Yongdeng point the highest stability point, the lowest point of collaboration. (6) the same years in the same ecological regions sainfoin leaf ratio increases gradually with the growth and development of sainfoin difference significant (p lt; 0.05), branching of stems and leaves than the lt; bud Phase lt; early flowering lt; flowering. Sowing Year sainfoin differences between the different eco-regions of the same growth stages leaf ratio is not significant (p gt; 0.05), the second year of growth sainfoin leaf ratio between the different ecological zones of the same growth stages was significantly different (p lt; 0.05). (7) sainfoin fresh and dry than with phenophase after shift gradually decline, is the bud of the fresh and dry gt; the early flowering gt; flowering stage. Different ecological regions sainfoin first crop of fresh grass stem difference significant (p lt; 0.05), the second crop of grass the difference was not significant (p gt; 0.05). (8) the same growth years of the same ecological regions sainfoin swath cut for the later the higher the first crop of grass forage yield; the stubble grass production depends on the crop of grass mowing period, the stubble grass production bud of mowing high cut at early flowering mow the early flowering stage mowing above flowering swath cut. The the different mowing period, the growth of the second year sainfoin forage yield significantly higher than the seeding year. Between ecological regions, the annual output of a significant difference (p lt; 0.05). (9) different ecological regions the same years of sainfoin seed yield significantly different (p lt; 0.05). Sainfoin seed yield the same ecological regions of the second year of growth significantly higher than sowing sainfoin seed yield. Different ecological regions the same growth years sainfoin grain weight difference significant (p lt; 0.05), the Yongdeng point the highest point of collaboration, followed by stability point minimum. (10) different ecological regions of red beans stem, leaf nutrient content trend is consistent with the growth period goes on diminishing CP content, the CF content increments. Sainfoin whole plant nutrients manifested as the CP content decreased with the growth and development of sainfoin CF content increased, the CP decreased the amplitude and the amplitude of CF rose gradually decreasing trend. CP, CF content in the same growth stages of different ecological regions significant difference (p lt; 0.05). The best mowing during the flowering stage for sainfoin highest nutrient production. (11) with the theory of gray system associated degrees of different ecological regions sainfoin yield traits and quality comprehensive evaluation. Obtained for each trait associated hay yield in descending order: plant height gt; the the CP gt; fresh dry than gt; CF gt; the leaf ratio gt; growth rate gt; branch number. Each trait in order of the size of the protein content associated degrees plant height gt; growth rate gt; fresh dry than gt; hay yield gt; the CF gt; leaf ratio gt; branch number. Each trait in order of the size of the crude fiber content associated degrees leaf ratio gt; growth rate gt; fresh dry than gt; plant height gt; the the CP gt; hay yield gt; branch number.

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CLC: > Agricultural Sciences > Crop > Fodder crops,pasture > Perennial legume > Donkey eat beans ( sainfoin )
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