叶面喷施磷酸二氢钾对翠菊幼苗生长的影响

以"吉农大粉翠菊"为试材,采用单因素随机区组试验设计,研究了叶面喷施0%(CK)、0.1%、0.2%、0.3%4个不同浓度磷酸二氢钾对翠菊幼苗生长的影响,以探索翠菊幼苗对叶面施用磷肥的响应。结果表明:翠菊幼苗期叶面喷施磷酸二氢钾可以有效的促进翠菊幼苗的生长;其中以喷施0.2%浓度磷酸二氢钾溶液的试验处理效果最为明显,翠菊幼苗的形态与生理指标与其它处理相比均达到显著水平。     

"吉农大粉"翠菊选育报告

"吉农大粉"翠菊是对混色翠菊群体中的自然杂交单株进行连续6个世代的系谱法选育和连续多年的品比与栽培试验,选出的翠菊新品种。该品种平均株高35cm、平均花朵数量47.67个、平均花朵直径6.86cm、舌状花粉色(RGB值为255、182、255)、色泽鲜艳、初花期平均提前3.5d、终花期平均延后6.5d、观赏期增加了10d。适宜吉林省各地区在无霜期露地栽培或保护地栽培。     

保水剂在翠菊移栽中的应用研究

为解决翠菊移栽后缓苗期长、幼苗生长发育缓慢等问题，试验通过幼苗移栽时蘸根、穴施等方法，进行了保水剂在翠菊移栽中应用效果的研究。试验结果表明：翠菊移栽时使用保水剂，可使缓苗时间缩短2～3d，光合速率提高33．87％～53．23％，叶片水势降低-9．794～-4．897bar。两种处理中，穴施保水剂比用保水剂蘸根效果好。由此可见，在翠菊移栽时适当使用保水剂，是缩短缓苗期、促进翠菊生长发育以及提高抗旱能力的有效途径，值得推广应用。     

翠菊新品种''吉农大蓝翠菊''

‘吉农大蓝翠菊’是经过对混色翠菊群体中的自然杂交单株进行连续6个世代的系谱法选择育成的翠菊新品种。植株高度35 cm左右, 地上部多分枝, 头状花序蓝色单生于枝顶, 花朵直径8 cm左右。     

不同浓度氮素对翠菊幼苗质量的影响

以硝酸钙为氮源,采用单因素随机区组试验设计,设5个氮素浓度,研究氮肥对翠菊幼苗生长的影响。结果表明:硝酸钙用量为125 mg/kg基质时,翠菊幼苗的干重与其它处理间呈极显著差异;硝酸钙用量在1001、25 mg/kg基质水平时,翠菊幼苗的茎粗达到最大值;硝酸钙用量水平为125 mg/kg基质的处理壮苗指数达到最大;氮素用量对翠菊幼苗植株高度影响不明显。     

洗涤剂处理对翠菊种子萌发及根尖的影响

研究了5种浓度和2个不同时间处理的白猫洗涤剂对翠菊种子萌发、根生长、细胞分裂和染色体畸变的影响。结果表明:4～64mL/L处理的翠菊种子和对照组的种子相比,萌发率及根长都比对照组低,且随着处理浓度和处理时间的增加,洗涤剂对翠菊种子的萌发和根长的生长抑制作用增强;根尖细胞有丝分裂指数随洗涤剂浓度的增高和处理时间的延长而递减;洗涤剂处理能引起不同程度的染色体畸变,其中32mL/L处理6h作用效果最明显。     

不同基质对翠菊容器育苗的影响

以翠菊种子为试验材料,采用容器育苗的方法,研究不同基质、不同配比对翠菊育苗的影响。结果表明:不同基质、不同配比对翠菊发芽以及幼苗生长差异显著;从生长情况和基质成本上看,泥炭∶蛭石=3∶1和腐殖质∶蛭石=3∶1最适宜翠菊容器育苗。     

翠菊养殖技术

翠菊（Callistephus chinensis．）又名八月菊、江两腊、姜心腊、蓝菊等。菊科，翠菊属。原产中国，花色丰富，花型多变，颜色鲜艳，是庭园中重要花卉之一。翠菊性强健。为浅根性植物，     

6月花事

翠菊 中耕除草，浇水施肥和病虫防治工作应及时做好。     

翠菊

翠菊为菊科翠菊属一年生草本植物．茎直立,株高20—80厘米．茎的中部发出6－10个分枝．每分枝的顶端着生一朵花,花色多样。有单瓣、重瓣两种。     

辣椒雄性不育三系品种江淮8号的选育

江淮8号是以辣椒雄性不育系A-921为母本、甜椒雄性不育恢复系C-097为父本配制的辣椒一代杂交新品种。该品种早中熟,植株高度约65 cm,植株开展度约60 cm,株型紧凑,首花节位10~11节,挂果集中,果实牛角形,青果绿色,果面光滑,果长度12 cm左右,果肩宽度6 cm左右,平均单果质量约65 g,辣味中等。667 m2产量约3 800 kg,抗疫病、炭疽病等病害,耐热耐湿,适应性强。     

Adaptation of the tropical hybrid Euphorbia × lomi Rauh to the exposure to the Mediterranean temperature extremes

Poysean (Euphorbia × lomi Rauh) has been introduced in the Mediterranean countries as an ornamental plant for indoor uses. When used outdoor, few information is available about its ability to withstand the Mediterranean temperature extremes. An experiment in an open stand was performed to evaluate poysean tolerance to the winter and summer temperatures of the thermo Mediterranean climate and its ornamental value for urban greening. Two genotypes of poysean (Nguen Muang, NM; and Soi Budsanin, SB) with similar bracts and flower colours were grown at either 2 or 3 plants per pot during 23 months. Number of flower racemes and leaves per plant and plant height were recorded monthly. Overall ornamental value of each pot was scored by means of a panel test (PT) performed by independent examiners. Score assignment was homogeneous between examiners. On average, NM showed a 36% lower number of flower racemes, but a 30% higher ornamental value than SB. During fall and beginning of the winter, NM showed a higher number of flower racemes per plant than SB. Increasing plant density from 2 to 3 plants per pot did not influence flower racemes and leaves per plant. From March to November of the second year, number of flower racemes in NM was similar to the first year, whereas SB flower production was markedly higher, which can be due to a genotypic difference to Mediterranean temperature tolerance. Correlation between number of flower racemes per pot and ornamental value was higher in SB than NM, which suggest that in NM flower abundance contribute less to the pot ornamental value. The present data suggest that poysean is able to withstand the Mediterranean temperature extremes and still produces flower racemes during winter, which indicate it as a suitable ornamental plant in outdoor applications.     

昆明地区盆栽苹果诱导二次开花试验研究

盆栽苹果二次开花能提高观赏价值,延长观赏期,从而促进苹果盆景产业的发展.本试验显微观察了苹果花芽的形态分化进程,并通过全株脱叶和喷施单氰胺溶液对昆明地区不同品种的盆栽苹果进行了二次开花试验.结果表明:8月中旬,嘎拉、富士、红色之爱的花芽分化分别处于萼片形成期、花蕾分化期和花瓣形成期,神砂和皮诺娃则处于雄蕊形成期;10月...     

易丰收与赤霉素对切花洋桔梗生长发育的研究

研究了不同浓度易丰收、赤霉素对切花洋桔梗生长发育及开花的影响。结果表明:易丰收使植株高度增加7.34～17.45cm,茎粗增加0.32～0.62mm,花径增大0.18～2.98cm,根量增加2.7～17.8条,花枝高度60cm以上的切花比例达到32.8%～91.9%,而且浓度越高花径越大,并且当易丰收浓度在0.050mL/L时现蕾期提前了8d;25～50mg/L赤霉素使植株高度增加8.1～11cm,茎粗增加0.2～0.4mm,花径增大2.2～2.7cm,花枝高度60cm以上的切花比例达到95.8%～98.0%,明显提高了洋桔梗切花质量。     

Strawberry fruit yield and quality responses to flower bud removal: A simulation of damage by strawberry blossom weevil (Anthonomus rubi)

Summary

The effect of flower bud severing (with scissors) on the yield and fruit quality of strawberry (cv. Elsanta) grown on raised, polythene-mulched beds varied with plant size and numbers of flower buds per plant. On very small plants (with an average of seven flower buds and yielding 105 g of fruit per plant) severing reduced yield in direct proportion to the proportion of flower buds severed, irrespective of whether severing included or did not include removal of the primary (first node) flower bud. There was no evidence of crop compensation. On larger plants (with 24, 70 and 117 flower buds and yielding 0.34 kg, 0.73 kg and 1.16 kg of fruit per plant respectively) severing up to 12 buds per plant did not significantly affect yield: mean berry weight increased by up to 11% and the percentage fruit (by number) in quality class I increased from 67% to 72% in response to severing. Two mechanisms of yield compensation were, apparent i) an increase in mean berry weight, and ii) the maturing of alternative replacement flower buds. Severing slightly delayed by 1–2 d the date by when 10% and 25% of fruit was picked. Implications for the economic damage threshold for flower bud severing by the strawberry blossom weevil are discussed.     

金农糖橘的特征特性及配套栽培技术

金农糖橘是柑橘新品种,肉质脆嫩,汁多味浓甜,有香味、口感好、品质极优。该品种果实挂树期长,采摘上市时间弹性大,耐贮藏,市场发展前景好。本文概述了金农糖橘的特征特性,并分别从肥水管理、花果管理、病虫害防治等几个方面总结了该品种的栽培管理措施,以期为金农糖橘的品种推广提供依据。     

蜂窝型切花菊观赏性状综合评价与筛选

对54个大花蜂窝型切花菊株系,以株高、节间长、茎粗、茎充实度、叶长、叶宽、叶柄角度、花径、花高/花径、舌状花数和管状花数共11个观赏性状作为评价因子,利用层次分析法建立综合评价体系,并开展株系的筛选。研究确定了各性状的权重值,其中花高/花径影响最大,权重为0.241,其次是舌状花数和管状花数,权重为0.155和0.111。通过K-Means聚类分析将54个株系分为3个等级,优13个,占24.07%;良30个,占55.56%;差11个,占20.37%。通过层次分析法及K-Means聚类分析可以有效地对蜂窝型切花菊株系观赏性状进行综合评价,并选出符合育种目标的优良后代,为新品种选育提供重要材料。     

切花菊“神马”日光温室栽培技术研究

根据在大连地区的研究结果，提出切花菊“神马”目光温室栽培技术，主要包括定植准备、定植、摘心定干、张网、剥除侧蕾副芽、肥水管理、花期调控、B9处理、病虫害防治和采收上市等，供生产者参考。     

细叶百合的生殖特性和繁育规律研究

 研究结果表明, 栽培条件下2年生细叶百合实生苗中不抽茎、抽茎不开花和开花的比例分别为: 38.79% , 47.66%和13.55%。3年生和4年生细叶百合全部开花, 且开花比例随栽培年龄增加而增大。花粉和胚珠比为: 栽培164.9～175.2; 野生284.4～315.6, 其繁育系统为兼性自交。全光栽培下, 相对生殖成功率随植株年龄增加而增大, 2年生植株, 全光条件的相对生殖成功率是林下的7.5倍; 野生与全光下的相对生殖成功率相差无几。在开花前5 d其柱头即有可授性, 花前1 d授粉的结实率最高。细叶百合无多父本效应, 单一父本结实率和种子产量反而较高。人工同株异花、自花授粉坐果率为自然传粉坐果率的1 /2左右, 毛百合及松叶百合的花粉对其生殖有很强的干扰作用。