论文播期和密度对冬小麦普冰151籽粒灌浆特性产量影响是关于冬小麦方面的的相关大学硕士和相关本科毕业论文以及相关冬小麦春小麦播种时间论文开题报告范文和职称论文写作参考文献资料下载。
摘 要：选用优质强筋小麦普冰151为试验材料,设置10月3日、10月8日、10月13日3个播期和基本苗135萬、195万、255万、315万/hm2 4个密度,研究播期和密度对普冰151籽粒灌浆特性及产量的影响.结果表明：播期和密度对其群体茎蘖消长和各个生育时期叶面积指数有很大影响.不同处理灌浆进程符合三次正交多项式Cubic方程.籽粒灌浆期的最大灌浆速率、平均灌浆速率以及快增期的平均灌浆速率随播期的推迟而降低,随密度的增加而升高.播期推迟会降低普冰151的有效穗数和千粒重,不利于产量的提高,而穗粒数则随着播期的推迟先增后减.不同密度对普冰151的产量、穗数、穗粒数、千粒重也有极显著影响,穗数随密度的增加而增加,而穗粒数、千粒重都随密度的增加而降低.播期、密度以及两者之间的互作效应对普冰151的产量和产量构成三因素的影响均达到极显著或显著水平.籽粒产量以A1B2最高,为8 150.33 kg/hm2,除和A1B1和A2B3差异不显著外,和其它处理差异均达极显著水平.因此,普冰151可选择10月3日播种、密度为135万～195万/hm2或者10月8日播种、密度为255万/hm2.
关键词：小麦；普冰151；播期；密度；灌浆特性；产量
中图分类号：S512.1+10.1文献标识号：A文章编号：1001-4942（2017）06-0041-07
AbstractTaking high-quality strong-gluten wheat cultivar Pubing 151 as test material,setting 3 sowing dates, October 3,October 8,October 13, and 4 planting densities, 1 350 thousand seedlings per hectare, 1 950 thousand seedlings per hectare,2 550 thousand seedlings per hectare,3 150 thousand seedlings per hectare,the effects of sowing date and planting density on the grain filling characteristics and yield of Pubing 151 were researched. The results showed that the sowing date and planting density had significant impacts on population growth and decline of stems and leaf area index at various growth stages. The filling process was in line with the orthogonal polynomials Cubic equation in different treatments. The maximum grain-filling rate and average grain-filling rate at the grain-filling stage and the average grain-filling rate at the rapid increasing stage decreased with the delay of sowing date, and increased with the increase of planting density. With the delay of sowing date, the spike number per hectare and thousand-grain weight of Pubing 151 reduced,the yield could not be improved,and the grains per spike increased first and then decreased. The different density had very significant impacts on yield,spike number per hectare,grains per spike and thousand-grain weight. The spike number per hectare increased with the increase of planting density,while the grains per spike and thousand-grain weight decreased with the increase of planting density. The sowing date, planting density and the interaction effects had very significant or significant influence on yield and yield components of Pubing 151.Treatment A1B2 had the highest grain yield of 8 150.33 kg/hm2,which were very significant different with the other treatments except A1B1 and A2B3. Therefore,the suitable sowing date and planting density of Pubing 151 was October 3 with 1 350 to 1 950 thousand seedlings per hectare or October 8 with 2 550 thousand seedlings per hectare.
总结:本论文可用于冬小麦论文范文参考下载，冬小麦相关论文写作参考研究。
参考文献：
1、 播期对吉林省中部春玉米生长发育、产量与品质的影响 摘要：选择玉米杂交种银河62品种进行试验，共分为5个播期A、B、C、D、E，分别于2014年4月21日、5月2日、5月13日、5月23日、6月2。
2、 栽培密度对优质鲜食型甘薯农艺性状产量影响 摘 要 为了探讨不同密度处理对优质鲜食型甘薯农艺性状和产量的影响，选用优质鲜食型甘薯品种广薯87和福薯8号开展研究。结果表明：不同密度水平对2个。
3、 不同种植密度对桥玉8号穗部性状产量影响 摘要：研究了桥玉8号种植密度对其产量及产量构成因素的影响。结果表明：密度对桥玉8号的行粒数和千粒重影响较大，尤其当密度大于9 00万株 hm2时。
4、 播期和种植密度对冬小麦节水新品种衡S29产量相关因素影响 摘要：明确国审冬小麦新品种衡S29的配套高产高效栽培技术措施，可为该品种大面积应用提供理论依据，为此特进行不同播期和种植密度对该品种产量及其构成。
5、 播期对两种桃园绿肥生长养分积累特性影响 摘要：在肥城桃核心种植区，利用田间试验研究了二月兰、毛苕子两种桃园绿肥在不同播期条件下的鲜草产量、养分含量及积累量等特征。结果表明，9月25日播。