山西特色资源植物数据库的建立     

侯东颖  郭常莲  党德宣  赵磊  李兆斌 《农业网络信息》2016,(1):53-56

本文通过搜集山西省资源植物的基本资料和查阅相关文献,结合植物的经济用途和传统植物分类方法,将山西省资源植物分为十五类。利用现代信息技术,创建了山西资源植物数据库,实现了山西资源植物的信息共享,为今后更合理地开发利用资源植物提供科学依据。  相似文献   

Some Agronomic Strategies for Organic Quinoa (Chenopodium quinoa Willd.)          下载免费PDF全文

S.‐E. Jacobsen  J. L. Christiansen 《Journal of Agronomy and Crop Science》2016,202(6):454-463

Quinoa is a potential new seed crop for protein feed and human consumption in Europe, with tolerance to a range of abiotic stresses. For this purpose the study was planned to analyse the effect of important agronomic strategies like nitrogen level, N application strategy, row spacing and harvest time on yield and quality of quinoa. The experiments took place in the field of the experimental station of the Faculty of Science, University of Copenhagen. Three levels of organic nitrogen from slurry was used (60, 120 and 180 kg N ha^?1), supplied either all at once at sowing, or split between sowing and beginning of the reproductive phase. The effect of row spacing and harvest time was studied by harvesting seeds at seed maturity, which occurred 2–3 weeks prior to the mechanical harvest by threshing, and a couple of months after. Yield increased significantly (P ≤ 0.05) with an application up to 180 kg N ha^?1, reaching 2200 kg ha^?1. Increasing N also caused a significantly increased seed weight (up to 3.3 mg) and protein content (up to 17 %). N level did not affect number and amount of weeds. Split application with part of the N applied at bud formation did not have a significant effect on yield. Delayed harvest had a negative influence on seed weight, whereas protein content was stable after harvesting even a month after seed maturity. A late harvest significantly reduced seed germination, being reduced by 50 % after a 2‐month delay. A conclusion from this study is that both yield and protein content of seed can be manipulated by N level and application strategy. Harvest time is important for securing a high seed quality measured as seed germination, seed weight and protein content. A fast germination of quinoa is an important characteristic demonstrating that the crop has good possibilities for being well‐established in the field when free from weeds at the time of sowing. The choice of row spacing is important and depends on weed control method. Weed control strategy should be developed based on modern precision tools.  相似文献   

球花石楠种子育苗技术   总被引：1，自引：0，他引：1  

白平 《福建林业科技》2011,38(1)

从采种及种子处理、苗圃地选择、整地方式、播种方法及苗期管理、病虫害防治等方面阐述了球花石楠种子育苗技术,可为生产应用提供参考。  相似文献   

海口主要公园香花植物资源调查与分析     

王海玄  杨东梅 《江西林业科技》2016,(6)

香花植物在园林景观中满足了人们视觉感官与嗅觉感官的双重要求，有着独特的应用价值。本文对海口市5所大型综合性公园的香花植物进行调查，为推动其在海口市园林景观中的应用提供参考。研究发现，所调查的公园有香花植物45种（含1变种，2栽培品种），隶属于29科39属，以乡土植物为主，木本植物居多；多集中于夏季开花，花色以白色为主；花香从微香型到浓香型，以芳香型为主；主要有闻香主景式、点缀配景式两种配置形式。另外，香花植物种类偏少、种植面积小、花色单调等问题突出，针对以上问题提出相应对策。  相似文献   

论韶关地区道路绿化植物的科学选择与配置     

潘志坚 《广东园林》2011,33(5):66-71

韶关地区道路绿化树种大多数是从南部珠三角地区和北部湖南地区引进，可能存在所引进树种是否适应韶关气候的问题。因此，如何运用科学的方法选择与配置道路绿化植物和确定合适的种植位置就成为道路绿化工程的关键。  相似文献   

刺槐无性系种子园老龄母树截干矮化试验   总被引：2，自引：1，他引：1  

文彦忠 《防护林科技》2017,(5)

利用刺槐萌蘖力强的特性,对刺槐无性系种子园老龄化后的树体进行截干试验,促使其萌蘖形成新的树冠,并进行整形修剪,结果表明:老龄母树截干矮化,效果良好,达到预期目标。解决了原母树树体高大釆种困难的问题,为提高刺槐种子园老龄化后种子产量和质量进行了有益的探索。  相似文献   

河北植物新记录——臭荠属(Coronopus Zinn)     

万萍萍  沈风娇  王丹  王荣  贾冬子  梁红柱  石硕  赵建成 《河北林果研究》2016,(4):430-431

报道了河北种子植物新记录属臭荠属(Coronopus Zinn)及新记录种臭荠[Coronopus didymus(L.)J.E.Smith]。  相似文献   

Development of IP and SCAR markers linked to the yellow seed color gene in Brassica juncea L.     

Zhen Huang  Lu Liu  Hong Lu  Lina Lang  Na Zhao  Juan Ding  Aixia Xu 《Breeding Science》2016,66(2):175-180

Previous studies showed that the yellow seed color gene of a yellow mustard was located on the A09 chromosome. In this study, the sequences of the molecular markers linked to the yellow seed color gene were analyzed, the gene was primarily mapped to an interval of 23.304 to 29.402M. Twenty genes and eight markers’ sequences in this region were selected to design the IP and SCAR primers. These primers were used to screen a BC₈S₁ population consisting of 1256 individuals. As a result, five IP and five SCAR markers were successfully developed. IP4 and Y1 were located on either side of the yellow seed color gene at a distance of 0.1 and 0.3 cM, respectively. IP1, IP2 and IP3 derived from Bra036827, Bra036828, Bra036829 separately, co-segregated with the target gene. BLAST analysis indicated that the sequences of newly developed markers showed good collinearity with those of the A09 chromosome, and that the target gene might exist between 27.079 and 27.616M. In light of annotations of the genes in this region, only Bra036828 is associated with flavonoid biosynthesis. This gene has high similarity with the TRANSPARENT TESTA6 gene, Bra036828 was hence identified as being the gene possibly responsible for yellow seed color, in our research.  相似文献   

大兴安岭地区兴安落叶松种子园球果花蝇防治技术     

王书 《吉林林业科技》2015,(4)

利用综合防治方法对加格达奇兴安落叶松种子园落叶松球果花蝇进行防治,结果表明:防治效果达到90%时,种子园出种率提高了10%,大幅度减少良种种子损失,增加良种供给率。  相似文献   

低碳节约型园林的探索     

张祖普 《北京农业》2011,(12):18-19

随着社会经济和城市建设的迅速发展，自然资源和生态环境等面临着巨大压力，矛盾日益突出，本文主要结合目前非常流行的低碳经济讨论了建设节约型的园林。  相似文献