天然群落枯枝落叶浸提液与其它处理对伯乐树种子发芽的比较研究
Comparative Study on Germination of Bretschneidara sinensis Seeds Treated with Solution Extracted from Forest Litter and Other Methods
-
摘要: 用天然群落枯枝落叶浸提液浸种与其它处理方法进行伯乐树种子发芽试验,试验分室内和大田萌发试验,室内又进行了不同浸提液、不同激素处理、不同温度处理对伯乐树种子发芽的影响。结果表明:(1)蒸馏水浸种发芽率＞伯乐树群落枯枝落叶浸提液浸种发芽率＞罗浮栲群落枯枝落叶浸提液浸种发芽率,但差异不大;其中蒸馏水处理的种子发芽率最高(69.2%)。(2)以200 mg·L-1 GA3浸种12 h发芽率最高,达到80.0%。GA3浸种的伯乐树种子发芽率＞蒸馏水浸种的发芽＞IAA浸种的发芽率。(3)大田试验的发芽率与室内试验发芽率基本接近;其中酒精浸提液处理的种子发芽率较高,达70.4%。(4)伯乐树发芽最适宜温度是20 25℃。发芽开始后第10 26天为发芽高峰期;发芽可持续32天。(5)在20 ℃条件下第7—14天腐烂率较高;随着温度的升高,高腐烂率出现的时间推迟,但发芽率相对降低。Abstract: Experiments of germination of Bretschneidara sinensis seeds were conducted by the methods of field and indoor experiments by which the seeds were soaked in different solutions extracted from late-leaves forest litter, or treated with different growth hormones, or treated under different temperatures. The results are as follows: (1)Based on comparison, there were differences in germination rate among different solutions extracted from forest litter, but it was not so obvious. The highest percentage (69.2%) of germination was made by distilled water. The order of germination rate is distilled water＞solution extracted from forest litter of Bretschneidara sinensis communities＞solution extracted from forest litter of Castanopsis fabri communities. (2)According to the results of all the experiments, the solution of 200 mg·L-1 GA3 made the highest germination rate (80.0%) in which the seeds were soaked for 12 h. (3)The germination rate of nursery was very close to the experiment result made in indoor, but the highest percentage (70.4%) of germination is made by the alcohol solution extracted from forest litter of Bretschneidara sinensis communities. (4) Analysis of experiments showed that the optimal temperature for seed germination was 20℃ 25℃ and the highest percentage of seeds germination appeared at the 10th day to 26th day; besides, the seed germinating continued for 32 days. (5) The rate of seed decay was the highest at the time 7th-14th day during germination, and the seed decay would be postponed with the temperature rising,but the germination rate would be also lower.
-
[1] 中国科学院植物研究所. 中国珍稀濒危植物[M]. 上海:上海教育出版社,1989 [2] 郑万钧. 中国树木志(第四卷)[M]. 北京:中国林业出版社, 2004 [3] 曾懋修,童宗伦. 伯乐树树干的解剖学研究[J]. 西南农业大学学报,1984(1): 26-32 [4] 吕 静,胡玉熹. 伯乐树茎次生木质部结构的研究[J]. 植物学报:英文版,1994, 36(6):76-85 [5] 刘燕国. 种子萌发过程中水分与温度的作用[J]. 农机化研究, 2005(3):33-37 [6] 尹华军,刘 庆. 种子休眠与萌发的分子生物学的研究进展[J].植物学通报,2004,21(2):156-163 [7] 王 娟,刘仁林,廖为明. 伯乐树生长发育节律与物候特征研究[J]. 江西科学,2008, 26(4):552-634 [8] 姜 凌,白书农. 植物科学进展(第四卷) [M]. 北京:高等教育出版社,2001 [9] Rice E L. Allelopathy.[M]. 2nd edi. Academic Press Inc, 1984 [10] Kershaw K A. Association and covariance analysis of plant communities[J]. J Ecol, 1961,49:634-654 [11] Cruz Ortega R. Effects of allelopathic compounds of corn pollen on respiration and cell division of water melon[J]. J Chem Ecol, 1988, 14(1): 71-86 [12] 宋永昌,王祥荣. 浙江天童国家森林公园的植被和区系[M].上海:上海科学技术文献出版社,1995 [13] 贾鲜艳,张晓峰,海 棠,等. 紫花苜蓿浸提液对受体牧草种子发芽的影响[J]. 中国草地学报, 2011,33(6):107-112 [14] 柏明娥,洪利兴,姚 嫔,等. 紫花苜蓿浸提液对美丽胡枝子等3 种灌木的他感作用研究[J]. 山东林业科技,2009,182(3): 1-4 [15] 陈圆圆,郭水良,娄玉霞,等. 大金发藓和小蛇苔化学他感作用的生物测定[J]. 植物研究, 2009, 29 (1) : 108-112 [16] 于洪娟,侯喜林,季俊杰,等. 秸秆浸提液漂浮栽培对不结球白菜产量及相关品质特性的影响[J].植物资源与环境学报, 2011,20( 4): 83-87 [17] 时丽冉,白丽荣,李会芬. 火炬树叶浸提液对小麦根尖细胞的遗传毒性[J]. 麦类作物学报, 2012, 32(1):127-130 [18] 靳月华,尹忠馥,姚 缓. 组织培养在化学生态他感作用研究中的应用[J].生态学杂志, 1986, 5(5):61-63 [19] 中国科学院上海植物生理研究所. 现代植物生理学试验指南[M]. 北京:科学出版社,1999 [20] 国家标准委员会. GB/T3543中华人民共和国国家标准-农作物种子检验规程[M]. 北京:中国标准出版社,1995 [21] 胡 晋.种子生物学[M].北京:高等教育出版社,2006 [22] 彭凤梅, 董文汉,寸湘琴,等. 温度和药剂处理对盾叶薯蓣实生种子萌发的影响[J]. 种子, 2002(1):28-29 [23] 司亚平,何伟明,陈殿奎. 赤霉素对茄子种子活力的影响[J]. 中国蔬菜,1996(2):22-23,27 [24] 王广印. 落葵种子的发芽特性[J]. 中国蔬菜, 1997(5):13-16 [25] 史晓华,徐本美,黎念林,等. 银钟花种子休眠和萌发的初步研究[J]. 种子,2002(4):7-9 -
点击查看大图
计量
- 文章访问数: 3249
- HTML全文浏览量: 233
- PDF下载量: 1470
- 被引次数: 0
下载:
