纳罗克非洲狗尾草种子产量构成因子分析

中国畜牧兽医 ›› 2013, Vol. 40 ›› Issue (8): 207-210.

纳罗克非洲狗尾草种子产量构成因子分析

段新慧^1,2, 李乔仙², 钟声², 薛世明², 黄梅芬², 杨国荣², 黄必志²

1. 云南农业大学动物科学技术学院, 云南昆明 650201;
2. 云南省草地动物科学研究院, 云南昆明 650212

收稿日期:2013-01-05 出版日期:2013-08-20 发布日期:2013-08-16
通讯作者: 黄必志 E-mail:hbz@ynbp.cn
作者简介:段新慧(1975- ),女,云南人,硕士,助理研究员,研究方向:草业科学。
基金资助:
云南省面上项目(2009CD141);现代农业产业技术体系建设专项。

Analysis on Seed Yield Components of Setaria sphacetata cv.Narok

DUAN Xin-hui^1,2, LI Qiao-xian², ZHONG Sheng², XUE Shi-ming², HUANG Mei-fen², YANG Guo-rong², HUANG Bi-zhi²

1. College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China;
2. Yunnan Academy of Grassland and Animal Science, Kunming 650212, China

Received:2013-01-05 Online:2013-08-20 Published:2013-08-16

摘要/Abstract

摘要： 为了解纳罗克非洲狗尾草单株种子产量构成因子,探索提高种子产量的解决途径,试验选择7个纳罗克非洲狗尾草单株种子产量构成因子;另取4个单株穗子10等分,从基部依次编为1—10号,试验中脱落的种子为11号。单株种子产量构成因子相关性分析结果表明,纳罗克非洲狗尾草单株种子产量(W)与生殖枝数(X₃)呈极显著正相关(P<0.01),与分蘖数(X₂)呈显著正相关(P<0.05);多元逐步回归单株种子产量W=-16.59156+0.42479X₃-0.03082X₅+0.04923X₆。对穗子不同部位的种子分析结果表明,试验中脱落的种子11号质量最好,其次为7号种子。不同部位的种子产量以1、3、8号种子产量较高,而9、10号种子产量最低。提示,纳罗克非洲狗尾草穗子中部的种子产量较为稳定,产量也较高,而穗尾1/3部的产量最低,收种时应确定以穗子中部的种子成熟为最佳收种时机。

关键词: 纳罗克非洲狗尾草; 种子产量; 构成因子

Abstract: To understand the seed yield component factors of Setaria sphacetata cv.Narok, and explore solutions for improving the seed yield, 7 strains of Setaria sphacetata cv.Narok were analyzed, and 4 plant grains were selected with dividing into 10. In turn made up of 1 to 10 from the base part shed seeds, and falling seeds of the trial was for No.11. Results showed that seed yield per plant (W) of Setaria sphacetata cv.Narok was significantly positive correlated with reproductive branch number (X₃)(P<0.01),and significantly correlated with tiller number (X₂)(P<0.05). Multiple stepwise regression analysis on the seed yield per plant (W) were carried out, and the equation was W=-16.59156+0.42479X₃-0.03082X₅+0.04923X₆. Seed quality analysis on seeds of different sites showed that falling seeds of the No.11 had the best quality, and the second was No.7, and seed yield of No.1, No.3 and No.8 were higher than others, while No.9 and No.10 were the lowest. Research results found that middle ear showed high and stable production, 1/3 of tail ear was low production. Best harvest time should be selected when seeds in middle ear were fully maturation.

Key words: Setaria sphacetata cv.Narok; seed yield; component factors

中图分类号:

S817.8⁺5

段新慧, 李乔仙, 钟声, 薛世明, 黄梅芬, 杨国荣, 黄必志. 纳罗克非洲狗尾草种子产量构成因子分析[J]. 中国畜牧兽医, 2013, 40(8): 207-210.

DUAN Xin-hui, LI Qiao-xian, ZHONG Sheng, XUE Shi-ming, HUANG Mei-fen, YANG Guo-rong, HUANG Bi-zhi. Analysis on Seed Yield Components of Setaria sphacetata cv.Narok[J]. , 2013, 40(8): 207-210.

参考文献

1 王晓光,贾玉山,格根图.畜产品与粮食安全及牧草型全混日粮技术的研究进展[J].中国畜牧兽医,2011,38 (3): 42~46.

2 汉弗莱斯L R,里弗莱斯F. 李淑安,赵俊权译.牧草种子生产——理论及应用[M].昆明:云南科技出版社,1989.

3 罗泉, 邓菊芬,尹俊.纳罗克非洲狗尾草种子生产技术研究概况[J].草业与畜牧,2007(2):16~18.

4 罗富成,蒋德芸.提高纳罗克非洲狗尾草种子发芽率的研究[J]. 草业科学,2001,18(1):25~26,29.

5 奎嘉祥,钟声,匡崇义,等.纳罗克非洲狗尾草引种试验报告[J].中国草地,2001,23(3): 22~25.

6 奎嘉祥,钟声,匡崇义.云南牧草品种与资源[M].昆明:云南科技出版社,2003.

7 赵俊权,李淑安.氮磷钾对非洲狗尾草纳罗克种子产量和干物质的影响[J]. 草业科学, 1991,8(2):64~68.

8 钟声.纳罗克非洲狗尾草结实性及适宜收种时间的研究[J].种子,2007,26(4):32~35.

9 唐昊,韩学琴,邓菊芬,等.施肥量、刈割期对纳罗克非洲狗尾草株高、分蘖数的影响[J]. 西南农业大学报, 2006,19(9):210~213.

10 柴继宽,赵桂琴,师尚礼,等. 燕麦种子产量构成因子与产量的关联性分析[J].草地学报,2012,20(1):49~53.

11 海棠,韩国栋.不同条件下蒙古冰草种子产量及产量构成因子的分析[J]. 内蒙古农业大学学报(自然科学版),2004,25(1):109~113.

12 Bahnisch L M,Humphreys L R. Urea application and time of harvest effects on seed production of Setaria anceps cv. Narok[J].Australian Journal of Experimental Agriculture and Animal Husbandry,1977,17(87): 621~628.

13 Boonman J G. Experimental studies on seed production of tropical grasses in Kenya 6 the effect of harvest date on seed yield in varieties of Setaria sphacelata, Chloris gayana and Panicum coloratum[J]. Netherlands Journal of Agricultural Science,1973,21(1): 3~8.