Effect of Uniforming Pattern and Density on Seed Germination and Seedling Growth of Wheat

doi:10.11924/j.issn.1000-6850.casb18040046

Abstract

Abstract: To research the effect of uniforming pattern and density on seed germination and seedling traits of wheat,‘Xinchun 31’was used as material. Two sowing ways were set up, which were uniforming and drilling pattern, the density of 25, 36, 49 and 64 plants/box were set (D1, D2, D3 and D4), indicators of the wheat radicle and seedling traits were studied. The results showed that compared with the drilling pattern, wheat seedling radicle number, branch number, root surface area and volume of uniforming pattern increased, seedling stem diameter and seedling height increased by 6.15% and 1.02%, respectively, and with the increase of planting density, seedling stem diameter and seedling height increased and then decreased. The radicle rapid elongation time under uniforming pattern was 1.16 days shorter than that of drilling pattern, the theoretical maximum length of radicle decreased by 2.95%, while root maximum elongation rate increased by 8.96%. Radicle length had significantly or extremely and significantly positive correlation with radicle weight and stem and leaf weight, and significantly negative correlation with the grain residue weight; radicle average diameter had significantly negative correlation with radicle weight, stem and leaf weight and seedling weight; radicle weight had significantly positive correlation with stem leaf weight and seedling weight. Among them, the planting pattern and density had significant effects on root dry weight of 23 days, had little effect on the other indexes of other times. The conversion rate and consumption rate of dry matter in grain in germination stage first increased and then decreased, the conversion rate reached the highest on the 15th day, and that of uniforming pattern was 0.26% higher than that of drilling pattern with non-significant difference. The consumption rate reached the highest on the 11th day, and that of uniforming method was 10.61% higher than that of drilling method with significant difference. Planting density had little effect on the conversion rate and the consumption rate.

References

[1]赵广才. 小麦立体匀播技术绿色节本高产高效?[J]. 农民科技培训,2016,(01):42-44.
[2]赵广才,?郝德有,?常旭虹,?等. 小麦立体匀播技术?[J]. 农业科技通讯,2015,(07):184-186.
[3]郝德有, 郝志青. 小麦机械化匀播无垄栽培理论与技术?[J]. 北京农业,2014,(21):15-17.
[4]温健,?郭振斌,?张常文,?等. 小麦宽幅匀播技术氮、磷、钾施肥效果及推荐施肥量研究?[J]. 中国农学通报,2016,32(18):17-22.
[5]李华伟,?司纪升,?徐月,?等. 耕层优化双行匀播对小麦产量及叶片光合特性的影响?[J]. 麦类作物学报,2014,34(06):802-807..
[6]张幸温,?付桂明,?刘松华,?等. 浅谈小麦精量匀播技术?[J]. 河北农机,2015,(06):25.
[7]刘双平,?周青. 种子萌发过程中呼吸代谢对环境变化的响应?[J]. 中国生态农业学报,2009,17(05):1035-1038.
[8]张红. 硝普钠、Ca2+浸种对盐胁迫下小麦的发芽及幼苗生长的影响[J]. 核农学报,2013,27(10):1597-1603.
[9]尚宏芹,刘兴坦. 表油菜素内酯对汞胁迫下小麦幼苗抗氧化系统的影响[J]. 核农学报,2016,30(11):2258-2264.
[10]Zhang J H, Maun M A. Seed size variation and its effects on seedling growth in agropyron psammophilum?[J]. Botanical Gazette,1990,151(1):108.
[11]Wenning S., Montagu M. V., Verbruggen N. Small heat shock proteins and stress tolerance in plants [J]. Biochimica et Biophysica Acta, 2002, 1577: 3.
[12]Douglas B·Elliotl . Root-An underground botany and foragers, guide the ueful wild?[J].Root Tuders Cornt and Rhisomes of North Amenriea.1976.
[13]金善宝. 中国小麦学[M]. 北京: 中国农业出版社, 1996: 19.
[14]马超,?孔蓓蓓,?张均,?等. 不同引发剂处理对水分胁迫下小麦发芽及幼苗生理特性的影响[J]. 核农学报,2017,31(02):357-363.
[15]刘晟宇,?杨力,?刘亚亮,?等.?收获时间对玉米单交种种子质量和萌发过程中贮藏物质运转的影响[J].东北农业大学学报，2011,42（10）:25-29.
[16]崔竹梅,?袁菲菲,?韩耀平.南瓜种子萌发时贮藏蛋白及其酶活力的动态变化[J].?安徽农业科学,2009,37(36):7937-7938+7953.
[17]杨文钰,?关华.?种子萌发生理研究进展(Ⅰ)[J]. 种子,2002,(05):31-32.
[18]傅家瑞.种子生理学[M].北京:科学出版社,1985,123.
[19]Gomez J M. Bigger is not always better:?Conflicting selective pressures on seed size in Quercusilex?[J]. Evolution, 2004, 58(1):74.
[20]Seiwa K. Effects of seed size and emergence time on tree seedling establishment: Importance of development constraints[J]. Oecologia, 2000, 123:211.
[21]廖荣伟,?刘晶淼.作物根系形态观测方法研究进展讨论[J].气象科技，2008,(04):429-435.
[22]司琳杰,赵垦田. 根系研究方法统计与问题探讨[J]. 科技创新与应用,2015,(26):294-295.
[23]Sanni A. I. Onilude A. A., Ibidapo O. T.?Physicochemical characteristics of weaning food formulated from different blends of cereal and soybean [J] . Zeitschrift für Lebensmittel-Untersuchung und-Forschung A . 1999,208(3):222.
[24]杨子光,?张灿军,?冀天会,?等. 小麦抗旱性鉴定方法及评价指标研究Ⅳ萌发期抗旱指标的比较研究[J]. 中国农学通报,2007,(12):173-176.
[25]张鹏,?霍燕,?马鸿翔. 外源添加物对小麦幼胚成苗质量的影响[J]. 麦类作物学报,2009,29(01):31-34.
[26]潘幸来. 小麦根系生长规律及其与产量关系的初步研究[J].?山西农业大学学报,1982,(01):36-51+131-133.
[27]陈丽培,?王国霞,??沈永宝. 油松种子萌发初始阶段的呼吸代谢[J]. 林业科学,2012,48(05):150-153.
[28]费亚利,?李嘉瑞. 休眠与萌发过程中苹果种子的呼吸代谢[J]. 西北植物学报,1992,12(02):125-130.