四翅滨藜的引种试验及栽培技术研究     

王建林  崔国忠 《防护林科技》2004,(Z1):27-29

在气候干燥、寒冷的西北地区 ,引进具有耐干旱、贫瘠 ,抗寒冷 ,抗盐碱等多种优良特性的常绿或准常绿饲料灌木四翅滨藜 ,经过 2a生长全过程的栽培试验 ,观测结果表明 :在不同土壤类型下 ,新梢生长量、扦插育苗的成活率、保存率都表现出差异性。但移栽苗的成活率、保存率差异不大 ,表现出较强的适应性。而在中、强盐碱性土壤、(粗 )砂土中仍能正常生长 ,但新梢生长量低 ,分枝减少  相似文献   

Effect of Mediterranean saltbush (Atriplex halimus) ensilaging with two developed enzyme cocktails on feed intake,nutrient digestibility and ruminal fermentation in sheep          下载免费PDF全文

Haidy Alsersy  Abdelfattah Z. M. Salem  Borhami E. Borhami  Jaime Olivares  Hany M. Gado  Maria D. Mariezcurrena  Mohamed H. Yacuot  Ahmed E. Kholif  Mounir El‐Adawy  Saul R. Hernandez 《Animal Science Journal》2015,86(1):51-58

The aim of this study was to assess the effects of feeding Atriplex halimus (AH) silage treated with two developed enzyme cocktails to sheep on feed intake, nutrient digestibility and ruminal fermentation. The AH silage was treated without or with 2 L of ZAD1^® or ZAD2^®/1000 kg with 5% molasses and ensiled for 30 days. Barley grain (300 g/head/day) was fed as an energy supplement once daily at 10.00 hours and AH silage with or without enzyme treatment was offered ad libitum to animals twice daily at 09.00 and 16.00 hours. Sheep were fed on four experimental forage diets comprised of AH silage and barley (D1), AH silage treated with ZAD1^® and barley (D2), AH silage treated with ZAD2^® and barley (D3) and AH silage treated with a combination of ZAD1^® and ZAD2^® (1:1) and barley (D4). Ensiling AH with enzymes reduced its contents of neutral detergent fiber and acid detergent fiber. The dry matter intake of AH of D2, D3 and D4 decreased (P < 0.001) as compared to D1. However, enzyme‐treated diets had greater total digestible nutrients intake (P < 0.001) as compared to D1. The nutrients digestibility for D2, D3 and D4 were higher than those for D1 (P < 0.001), and were higher for D3 as compared to both D2 and D4. Sheep fed on D3 had highest (P < 0.001) ruminal total volatile fatty acids concentration, ammonia nitrogen concentration and microbial protein yield. It could be concluded that AH silage treated with ZAD1^® or ZAD2^® improved digestibility and rumen fermentation in sheep.  相似文献   

引进大洋洲滨藜对盐碱适应性研究     

李志英  毛桂莲  许兴  虎德钰 《西北农业学报》2014,23(3):101-106

采用室内模拟大田的试验方法,以引进大洋洲滨藜为试材,研究不同浓度的碱性盐NaHCO3胁迫下生物量、叶绿素含量、光合参数、Na+、K+、Ca2+等离子的动态变化。结果表明,随着NaHCO3胁迫浓度的升高,生物量、叶绿素质量分数、叶绿素a/叶绿素b的比值、净光合速率(Pn)、蒸腾速率(Tr)、气孔导度(Gs)呈现先升后降的趋势,即低浓度(150mmol·L-1)时最高,胞间CO2体积分数(Ci)呈现先降后升的趋势,Na+、Na+/K+的比值和Na+/Ca2+的比值呈现升高趋势,K+、Ca2+呈现降低趋势;随着时间的变化,14d时大洋洲滨藜生长状况最好;在300mmol·L-1胁迫下,加入脱硫废弃物后,生物量、叶绿素质量分数、叶绿素a/叶绿素b的值、Pn、Tr、Gs、K+和Ca2+质量分数等均高于处理。说明大洋洲滨藜在低浓度时(150mmol·L-1)较适宜生长;同时也说明脱硫废弃物在一定程度上可减缓碱胁迫对大洋洲滨藜的伤害。  相似文献   

Genetic diversity of natural populations of Atriplex halimus L. in Morocco: An isoenzyme-based overview     

A. Haddioui  M. Baaziz 《Euphytica》2001,121(1):99-105

Based on polyacrylamide gel electrophoresis, nine natural populations of Atriplex halimus L., a perennial shrub, collected in different regions of Morocco, were studied for their genetic variation using isoenzyme polymorphism of the highly active enzyme systems: esterases (EST), acid phosphatases (ACP) and glutamate oxaloacetate transaminase (GOT). Different allozyme frequencies from 7 different loci were obtained for all populations of this halophyte species. High levels of genetic diversity were revealed. The mean number of alleles per locus (A = 1.9–2.0), the percentage of polymorphic loci (p = 71.4–85.7) and the mean expected heterozygosity (H_e = 0.339–0.385) showed an important variability in all populations. Gene diversity was essentially explained by the within population component. The between populations differentiation accounted for 8% of the whole diversity (F_ST, averaged over all loci, is 0.08). The relationships among the 9 populations were inferred from the Nei’s genetic distances. Four major groups were formed. The northern population ‘Tanger’, forming a unique group, was highly divergent from the other groups. It appeared that the genetic distance between all groups was related to the geographic distance that separates them. This revised version was published online in August 2006 with corrections to the Cover Date.  相似文献   

Determination of Ploidy Level and Nuclear DNA Content in Tunisian Populations of Atriplex halimus L.     

Kheiria Hcini  David J. Walker  Sadok Bouzid  Elena González  Nora Frayssinet  Enrique Correal 《Genetic Resources and Crop Evolution》2006,53(1):1-5

Atriplex halimus L. (Chenopodiaceae) (Saltbush) is a perennial species used as a fodder shrub for livestock in arid and semi-arid areas, particularly in North Africa. The aim of this work was to determine whether differences in ploidy level and/or nuclear DNA content exist among populations from widely-separated sites in Tunisia. We determined nuclear DNA content and chromosome numbers for populations of A. halimus from seven different locations (Gabes, Medenine, Tataouine, Monastir, Tunis, Sidi Bouzid, Kairouan). The chromosome counts showed that all the Tunisian populations, plus a population from Eraclea (Italy), were tetraploid (2n = 4x = 36) whereas a population from Cala Tarida (Spain) was diploid (2n = 2x = 18). With respect to nuclear DNA, the 2C DNA content of population Cala Tarida was estimated to be 2.41 pg. There was no significant difference among the tetraploid populations (or among plants within populations), whose 2C DNA content ranged from 4.92 to 4.97 pg.  相似文献   

培养基对四翅滨藜茎段离体培养的影响     

杨育红 《安徽农学通报》2008,14(10):96-97

该文阐述了以四翅滨藜1a生茎段为实验材料,比较研究了不同的基本培养基对四翅滨藜茎段的离体培养的诱导效果,通过正交试验结果认为,四翅滨藜最佳的初代培养基为MS＋BA0.5＋NAA 0.05。  相似文献   

四翅滨藜引种试验   总被引：1，自引：0，他引：1  

董希文  王丽敏  闫敦良 《东北林业大学学报》2007,35(2):31-32

对引种的四翅滨藜(Atriplex canescens)树形(分成匍匐型、半匍匐型、直立型)、树高、地径、分枝数与冻害程度进行多元回归分析,确定了树形是影响其冻害程度的主要因子。因此可判定,四翅滨藜在半干旱地区引种产生冻害的主要原因是春季风大,易产生生理干旱;匍匐型的由于贴近地面,受风小,冻害程度最轻,大部分可在试验地越冬;直立型的冻害程度最高。同时,对四翅滨藜的耐旱性、耐盐碱性及在试验地的生物量、物候等进行了系统测定,为今后高寒风沙、盐碱地区引种四翅滨藜提供了借鉴。  相似文献   

四翅滨藜播种育苗试验研究     

苗银  滕玉凤  董慧玲 《中国园艺文摘》2012,(10):15-16

通过不同药剂处理四翅滨黎,并进行播种育苗试验,结果表明,对种子的萌芽影响大小顺序依次为:0.5%碧护>0.0033%赤霉素>0.005% ATP3>0.005% GGR生根粉=0.2%磷酸二氢钾>清水对照;采用浓度为0.5%碧护和0.0033%赤霉素处理种子,可显著提高种子发芽率;采用浓度为0.005% GGR和0.005% ATP3生根粉浸种对苗木生长有显著促进作用.  相似文献   

灰毛滨藜引种试验研究初报     

李广毅  吕悦来 《西北林学院学报》1994,9(3):26-30

对灰毛滨藜生物学特性和生长规律等方面的系统观测研究表明,引种后的灰毛滨藜基本保持了原产地的性状,在引种地表现出很强的适应性,引种是成功的,并具有推广价值。  相似文献   

四翅滨藜的表现性状及其在青海省的发展潜力   总被引：17，自引：5，他引：12  

郑淑霞  王占林 《陕西林业科技》1999,(3):10-13

介绍了准常绿饲料灌木－－四翅滨藜（Ａｔｒｉｐｌｅｘ ｃａｎｅｓｃｅｎｓ）的生态习性与形态特性及其在国内外的引种栽培和推广利用情况,阐述陈秦作为饲料的诸多优良特性和在青海畜牧业中的发展潜力,及其在西北地区农业中的发展方向。  相似文献