不同菠萝品种的叶色比较分析     

陆镜平 《中国园艺文摘》2014,(9):18-20

为了利用色素比较评价不同菠萝品种的农艺性状,选取定植在江门地区的4个菠萝品种叶片为试验材料。结果表明,‘金菠萝’的SPAD值和类胡萝卜素最高,显著高于其他3个品种。‘巴厘’的花青苷含量显著高于其他3个品种,‘卡因’的花青苷含量显著高于‘黄金菠萝’。对于绿色叶片而言,高叶绿素含量品种的叶色深绿,低含量的叶色黄绿;对于彩色叶片植株而言,花青苷含量起主导作用。4个品种在色素含量方面有较大差异,色素可以作为进行菠萝品种评价和鉴别的重要指标。  相似文献   

包装对菠萝黑心病和品质的影响     

徐函兵  马克群  张鲁斌  弓德强  洪克前 《热带作物学报》2014,35(11):2303-2306

以国内主栽品种巴厘的夏季果为试材,研究不同包装材料对菠萝黑心病及相关品质指标的影响。结果表明:0.02 mm聚乙烯、0.03 mm聚氯乙烯、0.05 mm聚氯乙烯包装均可降低贮藏菠萝的失重率,减少黑心病的发生率。贮藏15 d时,不同包装菠萝的可溶性固形物、维生素C、可滴定酸、可溶性蛋白含量无显著差异,但0.05 mm聚氯乙烯薄膜包装可维持可溶性总糖含量,因此,0.05 mm聚氯乙烯包装菠萝能更好地保持其品质。  相似文献   

Fungal abundance and diversity in earthworm casts and in uningested soil   总被引：1，自引：0，他引：1  

S. C. Tiwari  R. R. Mishra 《Biology and Fertility of Soils》1993,16(2):131-134

Earthworm casts and adjacent uningested soil from 30 different locations were compared to determine the abundance and diversity of fungal species. The casts contained larger fungal populations (g^-1 dry soil weight) and numbers of fungal species than the soil. Variations in these parameters between casts and soil were statistically significant (P=0.05). Fungal populations and the number of fungal species in casts and soil also varied significantly (P=0.05) between samples from different locations. A total of 27 fungal species were recorded from the casts and soil. Indices of dominance (0.084 casts; 0.14 soil) and general diversity (2.53 casts; 2.02 soil) demonstrated that the casts displayed more diverse fungal flora than the soil. The diversity of fungal species increased in earthworm casts after passing through the earthworm gut.  相似文献   

海南岛菠萝气候生产力的估算   总被引：1，自引：0，他引：1  

周兆德  胡耀华 《热带作物学报》1989,10(2):107-112

本文在系统分析海南岛菠萝生物学特性和生态环境的基础上,采用联合国粮农组织(FAO)介绍的气候生产力“农业生态方法”,计算了海南岛各地菠萝的气候生产力,用以表示海南岛菠萝生产的最好水平。结果表明用此方法计算的气候生产力与实际趋势吻合,从而为该方法的应用提供了良好的可行性论证。  相似文献   

The effects of concentrate added to pineapple (<Emphasis Type="Italic">Ananas Comosus linn. Mer.</Emphasis>) waste silage in differing ratios to form complete diets,on digestion,excretion of urinary purine derivatives and blood metabolites in growing,male, Thai swamp buffaloes     

Jetana T  Suthikrai W  Usawang S  Vongpipatana C  Sophon S  Liang JB 《Tropical animal health and production》2009,41(4):449-459

Four, male, growing Thai swamp buffaloes (197 ± 5.3 kg and all 1 year old) were used to evaluate the effects of concentrate added to pineapple waste silage in differing ratios, to form a complete diet, studying in vivo digestion, the rate of passage, microbial protein synthesis and blood metabolites. Animals were fed ad libitum with 4 diets, using four combinations of pineapple waste silage (P) and concentrate (C), in the proportions (on a dry matter basis) of 0.8:0.2 (P80:C20), 0.6:0.4 (P60:C40), 0.4:0.6 (P40:C60) and 0.2:0.8 (P20:C80). The results showed that the intakes of dry matter (DM), organic matter (OM), nitrogen (N), the N-balance, urinary purine derivatives (PD) excretion, the ratios of allantoin to creatinine (CR), PD to CR, the plasma urea-N (PUN) and insulin increased in the animals, but the intake of neutral detergent fiber (NDF), the coefficient of whole tract, apparent digestibility of NDF, the transit time (TT) and the mean retention time (TMRT) decreased, when the proportion of concentrate in the diet increased. This study indicated that the proportion of P40:C60 in the diet produced the best efficiency of urinary PD excretion (mmol) per digestible OM intake (kg DOMI).  相似文献   

菠萝叶基愈伤组织诱导体细胞胚   总被引：6，自引：1，他引：6  

何业华  罗吉  吴会桃  王瑞霞  高爱平  赵春香  余小玲  叶自行  王泽槐  韩景忠  刘和平 《果树学报》2007,24(1):59-63

以菠萝[Ananascomosus(L.)Merr.]吸芽上的叶基部组织为材料,研究了2,4-D、NAA、BA、TDZ在菠萝愈伤组织诱导体细胞胚过程中的影响。结果表明,2,4-D在体细胞胚诱导过程中起着极为重要的作用,其适宜浓度为5mg/L,适当浓度(1mg/L)的BA在降低畸形胚比例和增加体细胞胚发生率方面有重要作用,但BA也会促进愈伤组织分化不定芽;低浓度的TDZ与BA效果相似,在不同生长调节物质处理组合中,MS+0.01mg/LTDZ+5mg/L2,4-D培养基的体细胞胚发生率最高(97%)。低浓度NAA(2￣5mg/L)利于非胚性愈伤组织的增殖,而高浓度的NAA虽能促进体细胞胚发生,但这种体细胞胚很难继续增殖,在萌发时只生根不发芽。成熟体细胞胚在MS+0.2%活性炭上30d时的转株率为22.7%。  相似文献   

The use of CPPU for efficient propagation of pineapple   总被引：4，自引：0，他引：4  

Shinichi Adaniya  Koya Minemoto  Zenichi Moromizato  Keiji Molomura 《Scientia Horticulturae》2004,100(1-4):7-14

The use of forchlorfenuron (N-(2-chloro-4-pyridyl)-N′-phenylurea) (CPPU) for efficient propagation of pineapples was investigated. About 85% of axillary buds can be forced to sprout by soaking defoliated stem pieces (12 cm in length) in a 2.5 or 5.0 mg l⁻¹ CPPU solution for more than 3 h. The use of old stems taken from the third or fourth ratoon plants had the advantage of less liability to fungal decay, as compared to young stems from the first crop plants. The CPPU treatment combined with the removal of shoots from stems at monthly intervals significantly increased the number of shoots per stem piece (about 15 shoots per piece at 5.0 mg l⁻¹ CPPU), and resulted in a more uniform shoot size (the percentage of shoots within a range of 5–15 cm in length was about 90% at 5.0 mg l⁻¹ CPPU). The rooting of shoots was easily promoted within 1 month by treating the basal portion of shoots with 20 mg l⁻¹ indole-3-butyric acid (IBA) for 15 min. The CPPU method required about 5 months for plantlet propagation. From these results, we found that pineapple plantlets could be efficiently propagated by the following method: (1) soaking defoliated stems in a 2.5–5.0 mg l⁻¹ CPPU solution for more than 3 h; (2) harvest of developed shoots from the stems at regular intervals; and (3) promotion of rooting on the shoots at 20 mg l⁻¹ IBA for 15 min.  相似文献   

菠萝果肉颜色的形成与类胡萝卜素组分变化的关系   总被引：4，自引：0，他引：4  

杨祥燕  蔡元保  孙光明 《果树学报》2010,(1)

为了分析不同类型菠萝果实成熟过程中果肉类胡萝卜素成分的变化特点及其外观颜色差异形成的因素,以深黄色果肉的巴厘种和浅黄色果肉的卡因种菠萝为材料,应用高效液相色谱(HPLC)技术分析了菠萝果实不同发育阶段果肉类胡萝卜素成分及含量的变化。结果表明,随着果实的成熟,两菠萝品种果肉β-胡萝卜素、玉米黄质和β-阿朴-δ’-胡萝卜醛成分均呈上升趋势,尤其是β-胡萝卜素从青果期急剧增加到完熟期,而叶黄质却呈下降趋势。两品种的β-胡萝卜素含量都显著高于其他3种色素,而且在完熟期巴厘种的β-胡萝卜素含量是卡因种的2倍以上。因此,β-胡萝卜素是造成两品种菠萝果肉类胡萝卜素积累量及外观色泽差异的主要因素之一。  相似文献   

干物质浓度对菠萝叶渣干式厌氧发酵产沼气的影响     

邓怡国  王金丽  孙伟生  焦静  郑勇  王刚 《安徽农业科学》2010,38(32):18607-18610

在C/N为25∶1,温度为（35±1）℃,接种量为30%的条件下,试验设计了A、B、C、D 4个试验组,其干物质浓度分别为15%、20%、30%、40%,以废弃的菠萝叶渣为原料,在自行设计的沼气发酵装置上进行了干式厌氧发酵试验,对菠萝叶渣干式厌氧发酵的可行性及干物质浓度对发酵过程的影响进行了研究。结果表明,菠萝叶渣用干式厌氧发酵工艺处理是可行的;干物质浓度为20%的试验组的产气量为556.9 L,明显优于其他3组;原料产气率和池容效率也优于其他3组;而干物质浓度对CH4含量的影响不大。该项研究对菠萝叶渣的资源化利用提供了有益的参考。  相似文献   

菠萝茎尖玻璃化法超低温保存及植株再生   总被引：2，自引：0，他引：2  

傅翠娜  肖远辉  曾继吾  彭抒昂  易干军 《西南农业学报》2011,24(5)

以菠萝为试材,建立试管无性系,进行玻璃化法超低温保存及植株再生研究,结果表明,约2.0 ～3.0 cm的菠萝茎尖于含有0.Smol/L蔗糖的培养基上预培养l～2d,剥取含1～2片叶原基(1.0～2.5 mm长)的茎尖,室温(25℃)下用LS装载液预处理50min,再用PVS2溶液于0℃下处理40 min,换入新鲜的PVS2溶液后迅速投入液氪,保存24h后在40℃水浴中迅速化冻90 s,用1.2 mol/L的蔗糖培养液洗涤2次,每次10 min,然后转入含0.3 mol/L蔗糖的MS培养基上,暗培养48 h后转入含BA 0.5 mg/L的MS培养基上,暗培养1周后转移到正常光下,4个菠萝品种(澳大利亚卡因、夏威夷、巴厘、台农16号)的成活率分别为96.5％、95.3％、78.6％、87.7％,再生率分别为93.2％、92.6％、76.7％、87.7％.再生植株生长和分化正常,其形态上与对照一致,生根后可移栽成活.  相似文献