小麥品種(系)及雜交組合F2籽粒戊聚糖含量的研究.pdf

1、安徽農(nóng)業(yè)大學(xué)碩士學(xué)位論文小麥品種（系）及雜交組合F2籽粒戊聚糖含量的研究姓名：崔文禮申請學(xué)位級別：碩士專業(yè)：作物遺傳育種指導(dǎo)教師：姚大年20090601IIAbstract In the paper，the teen main pushed wheat varieties were selected to normally cultivate under the same ecological envir

2、onment. Then measured and analysised the correlation of the total, water- soluble and insoluble Pentosan contents in wheat grain. water- soluble and water- insoluble Pentosan contents in 28 kinds o

3、f Anhui wheat varieties was tested..Choosed the 138- different sources wheat varieties (lines) to determine the total， water- soluble and water- insoluble Pentosan contents and related analysis and c

4、luster analysis among these. It also studied the total，water- soluble and water- insoluble Pentosan distribution in different Pentosan contents population F2 of Zhengmai9405/Wanmai19 hybrid seeds. Main resu

5、lts listed as follows: 1. pentosan contents and agronomic traits of grain in 10 wheat varieties was testd by controlling the impact of environmental factors. The results showed that the water- s

6、oluble pentosan content，plant height，ear length，total small ears as well as thousand- grain weight reached a significant level. Correlation analysis results indicated that the total pentosan content and w

7、ater- insoluble pentosan content were positively correlated with the plant height, total small spike, grains per spike. Water- soluble pentosan content was positively correlated with the plant height， ear l

8、ength， sterile small spike，thousand- grain weight. 2. The average content of total，water- soluble and insoluble Pentosan in 28 kinds of Anhui wheat varieties were 7.35%,1.02% and 6.33% respectively ,

9、 and its coefficient of variation were 11.56%, 15.59%,13.22% respectively.The average content ration of water- soluble pentosan to total pentosan content was 14.01%, the distribution of protein conten

10、t was 9.4% - 16.4%.the average and coefficient of variation was 14.0% and 10.9%. Correlation analysis results showed that water- soluble pentosan content was positively correlated with protein content, we

11、t gluten and sedimentation value, and significant positively correlated with hardness. Pentosan contents，protein content and other traits on 28 wheat varieties (lines) of Anhui was studied by the

12、 most long- distance Cluster analysised . It was showed that it divided into four categories. 3. The total，water- soluble and water- insoluble Pentosan content means of 138 different sources of wh

13、eat varieties were 7.62%， 1.08% and 6.54%， 5.76%， standard deviation were 0.89，0.21 and 0.87，coefficients of variation were 11.66%，18.98% and 13.30%，respectively. The average proportion of water- solub