草莓悬浮细胞原生质体培养再生愈伤组织   总被引：4，自引：0，他引：4  

周春江  李卫东  葛会波 《果树学报》2003,20(4):319-321

以草毒品种宝交早生的花药愈伤组织建立的悬浮细胞系为试材,对原生质体分离和再生进行研究。结果表明:酶液的渗透压、浓度和配比对悬浮细胞原生质体产量和活力有重要的影响。悬浮细胞在CPW+1.0％ Cellulase R-10+0.5 Macerozyme R-10+0.05％Pectolyase Y-23+0.6mol/L甘露醇+0.5％PVP的酶液中酶解12h,原生质体产量和活力最高,分别达16.35×10~6/g和84.6％。采用液体浅层培养法对原生质体进行培养获得了再生愈伤组织。  相似文献   

草莓摘叶处理对果实芳香物质的影响   总被引：3，自引：0，他引：3  

姜远茂  彭福田  刘松忠  束怀瑞  李可昌 《园艺学报》2004,31(2):230-232

 对草莓(Fragaria×ananassa Duch．)‘哈达’品种坐果后植株进行摘叶处理，对成熟果实的糖类和芳香物质含量进行了测定分析，结果表明：不摘叶、摘1/3叶和摘2/3叶3个处理果实GC/MS分析分别检测出43、33和37种芳香物质成分。随摘叶程度加重，芳香物质成分中酯类的相对含量呈下降趋势，而醛类的相对含量呈上升的趋势；2，5-二甲基-4-甲氧基-3(2H)-呋喃酮的相对含量明显降低；果糖和总糖含量显著降低。  相似文献   

草莓叶面积简易测定方法   总被引：16，自引：1，他引：16  

乔宝营  黄海帆  张信栓  马彩霞  李道德 《果树学报》2004,21(6):621-623

以透明方格法作对照,分别与叶面积的其他简易测定法(叶长度×叶宽度的系数法、叶长度与叶面积的回归法、叶宽度与叶面积的回归法)比较。结果表明吐德拉(Tudla)叶面积的每种测定方法,以叶宽度与叶面积回归法最精确,计算公式是=7.0918x-13.4784穴公式中的x是叶宽度,y是叶面积,以下相同雪;鬼怒甘(Kinuama)叶面积的测定法也是叶宽度与叶面积回归法最精确,公式是=7.3187x-14.3288。杜克拉(Dukela)叶面积的测定法,推荐用叶宽度与叶面积的回归法,公式是=6.6393x-10.6411。y=a+bx^y=a+bx^y=a+bx^  相似文献   

Strawberry Production in Central Europe     

《International Journal of Fruit Science》2013,13(1):91-105

Abstract

This paper focuses on the cropping systems in central European countries such as Belgium, The Netherlands, UK, Ireland, Germany, Switzerland and the northern part of France and Italy. During the last decade there has been a consistent increase in programmed “out-of-season” strawberry production in several central European countries. This is being achieved in part, by using cultivars with different cropping seasons, but mainly by sequential planting of cold-stored plants and by growing strawberries in greenhouses and plastic tunnels. These methods have made it possible to extend the strawberry production for 11 months, from the end of February until mid January in central European countries with moderate climates.  相似文献   

Effects of bark mulch and npk fertilizer on yield,leaf nutrient status and soil mineral nitrogen during three years of strawberry production     

Anita Sønsteby  Arnfinn Nes  Finn Måge 《Acta Agriculturae Scandinavica, Section B - Plant Soil Science》2013,63(3):128-134

The effects of bark mulch and NPK fertilizers on yield and leaf and soil nutrient status of ‘Korona’ strawberry plants (Fragaria×ananassa Duch.), were studied over a period of three years. A significant effect of mulching was found in the first harvest year, but additional fertilizer did not affect total yield. Bark mulch slightly decreased the level of leaf nitrogen, but increased the level of leaf phosphorus and potassium in all years. Bark had a significant, negative effect on soil nitrate and ammonium content in the two first seasons. Mulching increased the soil moisture content in all years.  相似文献   

中国草莓属( Fragaria) 植物的分类研究   总被引：15，自引：0，他引：15  

雷家军  代汉萍  谭昌华  邓明琴  赵密珍  钱亚明 《园艺学报》2006,33(1):1-6

 中国是世界上野生草莓种类最丰富的国家。近20年来, 从国内外收集保存了103份野生草莓资源, 鉴定出我国自然分布有11个种, 约占世界草莓属植物20个种的一半。这11个种包括8个二倍体种: 森林草莓(Fragaria vesca L. ) 、黄毛草莓( F. nilgrrensis Schlecht. ) 、五叶草莓( F. pentaphylla Lozinsk. ) 、纤细草莓( F. gracilis Lozinsk. ) 、西藏草莓( F. nubicola Lindl. ) 、绿色草莓( F. viridis Duch. ) 、裂萼草莓( F. daltoniana Gay) 、东北草莓( F. m andschurica Staudt) 和3个四倍体种: 东方草莓( F. orientalis Lozinsk. ) 、西南草莓〔F. m oupinensis ( Franch. ) Card. 〕、伞房草莓( F. corymbosa Lozinsk. ) 。对我国原产野生草莓种类进行了较系统的性状描述和分类研究, 并列出了我国野生草莓分种检索表。提出我国分布有11个种的结论比以前记载的8个种更全面和完整。  相似文献   

Relationship between light,fruit and leaf mineral content with albinism incidence in strawberry (Fragaria x ananassa Duch.)     

R.R. Sharma  V.B. PatelHare Krishna 《Scientia Horticulturae》2006

A study was conducted in strawberry to establish a relationship between shading, mineral nutrient of leaves and fruits with albinism incidence. Plants grown under shade produced albino fruits in higher proportion than those grown in open fields. Similarly, plants under shade produced smaller sized fruits and have lower fruit yield. Among cultivars, Etna had highest incidence of albinism (49.6%) and Sweet Charlie the lowest (14.4%). Dry matter content (%), concentration of five major nutrients, viz. N, P, K, Ca, Mg, S and N:Ca and K:Ca nutrient ratios did not differ significantly in the leaves of plants producing normal or albino fruits. However, in contrast, the concentration of K was notably higher (1.97 mg g⁻¹ fresh tissue weight) and that of Ca was lower (0.098 mg g⁻¹ fresh tissue weight) in albino fruits than normal ones. Consequently, the ratios of N:Ca (11.34) and K:Ca (20.08) were higher in albino fruits than normal ones. Cultivars also differed widely in respect to dry matter (%), mineral content and nutrient ratios. Thus, it appears that lower light intensity favours the development of albinism in strawberry, and it seems that calcium is not the basic cause of albinism, but increased vigour associated with overuse of N and K might be positively associated with it.  相似文献   

西藏墨脱野生草莓属植物的调查和分类研究     

王超 《黑龙江农业科学》2014,(1):88-89

为有效利用西藏野生草莓资源,通过对西藏墨脱境内公路沿线的野生草莓资源进行考察和材料收集,阐述其分布特点,对其植物分类学性状进行观察记载、对比分析、分类和鉴定。结果表明:西藏墨脱共自然分布2个种,包括西南草莓和西藏草莓,并更正《西藏植物志》中对草莓属植物的描述错误,补充其记载的草莓属植物分种记录,重新列出了2种草莓分种检索表,新的分种检索表比以往记载的更加全面和准确。  相似文献   

The impact of arbuscular mycorrhizal fungi on strawberry tolerance to root damage and drought stress   总被引：1，自引：0，他引：1  

Victoria A. Borowicz 《Pedobiologia》2010,53(4):265-270

Individually, arbuscular mycorrhizal fungi (AMF), drought stress, and root damage can alter terrestrial plant performance but the joint effects of these three factors have not been explored. Because AMF can improve water relations, colonization by these root symbionts may increase the host’s tolerance of drought especially when roots have been compromised by herbivory. This full factorial study examined effects of AMF, water deficit, and artificial root herbivory in three genotypes of wild strawberry, Fragaria virginiana Duchesne that originated from the same restored tallgrass prairie as the AMF inoculum. Drought stress and root damage altered allocation to roots vs. shoots but the effects were not additive and the interaction did not depend on AMF treatment. Effects of AMF were absent with one exception: root damage significantly reduced belowground mass only in plants inoculated with AMF. Although drought stress did not interact with the AMF treatment, both drought stress and root damage reduced the abundance of arbuscules, and especially vesicles, and colonization varied among genotypes. Failure to detect strong effects of AMF on host growth could be due to variable responses of individual AMF species summing to no net effects. Functionally, AMF were primarily commensals of strawberry in this study.  相似文献   

Factors influencing fruit size in the strawberry (Fragaria ananassa Duch.)     

J. A. Hortyński  J. Żebrowska  J. Gawroński  T. Hulewicz 《Euphytica》1991,56(1):67-74

Summary Fruit size is one of the most important characteristics of highly productive strawberry cultivars. The aim of the experiments was to establish the factors responsible for the expression of this trait. The total yield of large fruits correlates closely with the total yield of all fruits and depends mainly on the mean fruit weight of all fruits. The position of fruits on the inflorescence influences the decline of fruit size to a larger extent in small-fruited clones than in the large-fruited ones. The size of the fruit is controlled by the dimension of the receptacle and number of achenes. The stimulating effects of achenes are quite different in various genotypes and the fruit weight per achene declines with the inferior blossom position. The large-fruited clones have bigger leaves, a larger photosynthetic area, and thicker petioles and flower stalks. Their cells are larger, which is common for the giant genotypes. The results suggest that there exists a possibility for indirect selection of fruit size on the basis of some additional parameters, which can be useful particularily in the years of unsuitable weather conditions.  相似文献