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用大国肖作中间砧嫁接红星苹果,具有树体矮化、结果早、丰产、果实品质优良等特征。经８年的试验：大国光作中间砧嫁接红星比对照甜茶基砧上嫁接的红星,树体矮化明显;早果丰产性强;果实可深性固形物含量高于对照,且外形美观,品质优良。 相似文献
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GM256与山丁子砧和龙冠、龙丰、金红等苹果品种嫁接的矮化中间砧树于1993年春定植，以山丁子砧嫁接的龙冠、龙丰、金红等苹果为对照。经过4年的栽培比较试验，结果表明矮化中间砧树具有如下三个显著特点：①树体校矮小，短枝较多；②早结果、早丰产；③矮砧树的果实，其单果重、着色程度、可溶性固形物含量均有所增长。矮化中间砧密植栽培是果树获得优质、高产、高效的好途径，应大力推广。 相似文献
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为了给‘泰山嘎拉’苹果的优质生产理论和技术提供基本资料,研究探讨了M26中间砧对‘泰山嘎拉’果实品质和味感的影响。结果表明:以八棱海棠为基砧,采用M26中间砧嫁接‘泰山嘎拉’,与未采用M26中间砧嫁接的对照相比,果实单果重由208.06g增加到232.83g,差异极显著,果皮花青苷、可溶性固形物和维生素C含量显著升高,果肉硬度显著增加,但果形指数没有显著性变化;在采用和未采用M26中间砧嫁接的‘泰山嘎拉’果实中均检测到3种糖与6种有机酸组分,其中糖组分均以果糖含量较高,葡萄糖、蔗糖次之,有机酸组分含量均以苹果酸最高,琥珀酸、草酸、乙酸、柠檬酸、酒石酸较低;采用M26中间砧嫁接的‘泰山嘎拉’果实果糖、葡萄糖含量及糖总量显著高于对照,其果实甜味指数绝对值与风味指数值分别为1 759和3 999,也显著高于对照值。上述结果表明,M26中间砧对提高‘泰山嘎拉’的果实品质和味感具有促进作用。 相似文献
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为给完善核桃芽接繁育技术提供参考,选用山东地方品种‘鸡爪绵’核桃实生苗为砧木,采用大方块芽接方法嫁接早实核桃品种‘香玲’和‘元林’,利用扫描电镜观测其砧穗组合体愈伤形成和嫁接口愈合过程。结果表明:2个早实核桃品种嫁接愈合过程相似,嫁接后第6天砧穗嫁接体愈合完成。第1天,嫁接口接穗上有愈伤组织细胞产生,同时有少量无机、有机分泌物或晶体;第2天,嫁接口处产生大量愈伤组织细胞,‘香玲’和‘元林’接穗愈伤组织细胞直径分别为17.5~35.0和14.1~33.3μm,‘元林’接穗愈伤细胞数量明显多于‘香玲’;第4天,愈伤细胞延伸分化出明显的愈伤组织,愈伤组织不断分裂;第5天,砧穗愈伤组织相互交叉连接;第6天,接穗和砧木间的维管束已重新连接,嫁接愈合完成。 相似文献
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对浙江东阳市30年来香榧早实丰产栽培生产实践的调查表明:香榧可以通过多种途径实现早实丰产.当地已经形成5种模式:野生砧就地嫁接模式,野生砧异地嫁接模式,实生大苗多头嫁接模式,嫁接大苗工程造林模式和嫁接壮苗加强管理模式;提出了获得早实丰产的9项技术措施:坚持适地适树;选用早实品种;坚持壮苗浅栽;摘顶修枝整形;间种抚育管理;合理正确施肥;年年深挖促根;及时防治病虫;适时调控结实.该市现已建成约75 hm2早实丰产香榧试验园,年产榧蒲103 t,产生高达1 500多万元的经济效益. 相似文献
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以河北省迁西县板栗品种‘燕山早丰’为试验材料,芽苗和1 a苗为砧木,进行单砧和双砧嫁接试验,研究了不同砧木类型对嫁接成活的影响、菌根化处理对不同砧木类型嫁接苗新梢生长、生物量、SPAD值及光合特性的影响。结果表明:(1)1 a幼砧嫁接成活率高达91.1%,愈合快,显著优于芽砧嫁接,但双芽砧显著优于单芽砧嫁接。(2)双芽砧嫁接苗新梢生长量与SPAD值最大,生物量亦与1 a砧嫁接苗相当。(3)菌根化处理后三种砧木类型嫁接苗的形态指标均有提高。(4)不同处理净光合速率差异显著,以菌根化双芽砧嫁接苗(24.86μmol·m-2s-1)最大。(5)芽砧嫁接苗水分利用效率RWUE显著高于1 a砧嫁接苗,菌根化嫁接苗水分利用效率显著高于无菌根嫁接苗。 相似文献
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《林业科学》2017,(5)
【目的】通过研究‘富有’甜柿中间砧嫁接苗苗期生长、解剖等表现,筛选出早期亲和的嫁接组合,并探讨中间砧嫁接的亲和性机制。【方法】以浙江柿作基砧,‘兰溪大红柿’、‘南通小方柿’、‘次郎’和‘西村早生’作中间砧(设置10 cm和25 cm 2种长度),嫁接‘富有’接穗,对其苗期生长等表型性状和生理生化指标进行对比分析和综合评价;采用石蜡切片法和光学显微镜技术,观测各嫁接组合基砧-中间砧、中间砧-接穗嫁接口愈合情况。【结果】‘富有’甜柿嫁接苗因中间砧种类和长度不同,在苗期生长指标和解剖结构特征上存在明显差异。浙江柿直接嫁接‘富有’甜柿(对照)成活率、株高等表型性状和生理生化指标较差,且嫁接口存在明显的膨大(膨大指数R=0.980)、隔离层(隔离层产生比例G=88.9%)和导管堵塞(导管堵塞率D=16.3%)现象。4种中间砧中,以‘南通小方柿’和‘西村早生’作中间砧的2年生‘富有’甜柿嫁接苗株高、叶绿素总量、瞬时光合速率、叶片可溶性糖含量、根系可溶性糖含量和根系活力均极显著大于对照(P0.05),成活率、茎段直径、叶片面积大于对照,且这2种中间砧明显降低植株嫁接口的R值、G值和D值。相同长度下,不同中间砧的嫁接苗生长指标综合评价值Q排序:‘南通小方柿’‘西村早生’‘次郎’‘兰溪大红柿’。相同中间砧下,10 cm长度中间砧的组合成活率、株高、茎段直径、叶片面积和Q值大于25 cm中间砧的组合,R值、G值和D值则小于25 cm中间砧的组合。G值、D值与Q值极显著负相关(相关系数分别为-0.910,-0.977,P0.01),表明嫁接口愈合情况直接影响嫁接苗早期表型生长和生理生化特性。【结论】浙江柿直接嫁接‘富有’甜柿早期不亲和。利用‘南通小方柿’和‘西村早生’作中间砧能改善嫁接口愈合情况,促进浙江柿嫁接‘富有’甜柿亲和;且以10 cm长度‘南通小方柿’作中间砧的‘富有’甜柿嫁接苗早期亲和性最好(Q=2.71,G=11.1%,D=0)。 相似文献
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《中南林业科技大学学报(自然科学版)》2017,(12)
以4个油茶新品种为材料,开展了芽苗砧嫁接砧穗组合的亲和性研究。研究结果表明,在以‘朝霞’为接穗的4个组合中,砧木为‘晚霞’时,砧穗亲和性最高,嫁接成活率、抽梢率、苗高、地径及新梢长均达到最大值;以‘晚霞’为砧木的4个组合中,接穗为‘秋霞’时嫁接成活率最高,为96.95%,接穗为‘朝霞’时,苗高、地径和新梢长仍达到最高值,分别为26.79 cm、3.51 mm和9.27 cm;以‘晚霞’为砧木时,砧穗亲和性最好,适合做砧木品种,‘秋霞’+‘晚霞’的组合嫁接成活率最高,‘朝霞’+‘晚霞’的组合苗木生长最旺盛;非本砧嫁接亲和性优于本砧嫁接。 相似文献
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Sangvanich P Kaeothip S Srisomsap C Thiptara P Petsom A Boonmee A Svasti J 《Fitoterapia》2007,78(1):29-31
Crude proteins obtained by Mg/NP-40 extraction from Thai medicinal plants of the Curcuma species exhibited agglutination activity against rabbit erythrocytes. A crude extract from Salingalinthong, a Thai Curcuma specie, exhibited the strongest hemagglutinating activity, 2 x 10(-5) mg/ml. 相似文献
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Light-mediated activities of some Thai medicinal plant teas 总被引：1，自引：0，他引：1
Forty-one types of commercially available Thai medicinal teas were tested for their light-mediated activities against Bacillus subtilis, Staphylococcus aureus K147 methicillin-sensitive (Ms), Escherichia coli DC10, E. coli (wild), Pseudomonas aeruginosa 187 (wild), Candida albicans and Aspergillus fumigatus. The results represent a first report of the light-mediated antimicrobial activities of Thai medicinal teas and suggest that phytochemical investigations may be warranted. 相似文献
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《Fitoterapia》2013
Phytochemical investigation on the constituents of Thai propolis led the isolation of a new phenylallylflavanone, (7″S)-8-[1-(4′-hydroxy-3′-methoxyphenyl)prop-2-en-1-yl]-(2S)-pinocembrin (1) and (E)-cinnamyl-(E)-cinnamylidenate (2) from methanolic extract of Thai propolis. Their structures were determined on the basis of extensive NMR spectroscopic analysis. In addition to this, 19 compounds (3–21) belonging to flavonoids and phenolic esters were isolated and identified. 相似文献
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北部原始林区是中国集中连片、面积最大、保存最为完好的寒温带针叶林原始林区,是欧亚泰加林带东西伯利亚泰加林在我国境内唯一延伸部分。经过20多年的休养生息,北部原始林区野生兽类呈显著增长态势,从而结合2018年北部原始林区野生动物调查情况和过往的文献资料,归纳出北部原始林区野生兽类资源的组成和分布状况。 相似文献
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Antiproliferative activity of Thai medicinal plant extracts on human breast adenocarcinoma cell line 总被引：2，自引：0，他引：2
Ethanolic extracts of selected nine Thai medicinal plants were tested for antiproliferative activity against SKBR3 human breast adenocarcinoma cell line using MTT assay. Garcinia mangostana showed the most potent activity. However, all plant extracts showed activity in potential range for further investigation on cancer cells. 相似文献
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Extracts of ten Thai indigenous medicinal plants having ethnomedical application in the treatment of dysuria were tested for their Na(+),K(+)-ATPase inhibitory activity. The hexane extracts of Cyperus rotundus and Orthosiphon aristatus showed high potent inhibitory activity on crude enzyme Na(+),K(+)-ATPase from rat brain. 相似文献
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The effects of Butea superba on the reproductive system in male Wistar rats were investigated. The animals were fed daily with the powdered crude drug suspended in distilled water by a gastric tube at the dose of 2, 25, 250 and 1250 mg/kg body weight for 8 weeks. Rats fed with 1 ml of distilled water were used as a negative control. The weights of all vital organs in all treated groups were not different from the control. The percentage weight ratios of body weights of seminal vesicles and prostate glands were not different from the control, except that the testis of the group fed with 1250 mg/kg was significantly different from the control and the other treated groups. In addition, the sperm counts in this group showed about 16% more than the control group. Hematology as well as the liver and kidney function of all treated groups showed no difference from the control. B. superba, drug at 250 mg/kg which was 100 times more than the Thai FDA recommended dose for humans appeared to be safe in rats. The crude drug has demonstrated an increase tendency on testis weight and sperm counts in rat. The information from the present study can be used to explain the Thai folklore application of this plant in Thailand. 相似文献
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Mullika Traidej Chomnawang Suvimol Surassmo Karn Wongsariya Nuntavan Bunyapraphatsara 《Fitoterapia》2009
Methicillin-resistant Staphylococcus aureus (MRSA) is a major nosocomial pathogen which causes severe morbidity and mortality worldwide. Seventeen Thai medicinal plants were investigated for their activity against MRSA. Garcinia mangostana was identified as the most potent plant, and its activity was traced to the prenylated xanthone, α-mangostin (MIC and MBC values of 1.95 and 3.91 µg/ml, respectively). 相似文献
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Cytotoxic activity screening of some indigenous Thai plants 总被引：1，自引：0，他引：1
The 50% ethanolic extracts from 14 plant species used in Thai traditional folklore were screened for cytotoxic activity against a malignant human hepatoma (HepG2) cell line and a normal African green monkey kidney (Vero) cell line. The extracts of Polyalthia evecta and Erythroxylum cuneatum showed potent anticancer activity in the HepG2 cell line with IC(50) of 70+/-3 microg/ml and 64+/-4 microg/ml, respectively. P. evecta demonstrated more selectivity to the HepG2 than the Vero cell (selectivity index>14.3) indicating its potential for biopharmaceutical use. 相似文献