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1.
77—34是辽宁省果树研究所在1977年以M9为母本、小黄海棠为父本，采取有性杂交育成的苹果矮化砧木。1999年经专家鉴定认为达到国际先进水平，2000年获得辽宁省政府科技进步二等奖。一、主要生物学性状1.矮化性明显用山定子做砧木，77—34做中间砧，10年生国光树树高290厘米，冠径323厘米×293厘米，矮化程度同半矮化砧木M7相近，表明77—34属于半矮化砧木。2.亲和性特好在不同地区用山定子(辽宁)、丽江山定子(四川)、黄海棠(内蒙古)、八楞海棠(山西)和新疆野苹果(新疆)做基砧嫁接77—34，中间砧平均成活率高达97.7%;用77—34做中间砧，在辽… 相似文献
2.
77—34是辽宁省果树所通过有性杂交途径选育出的苹果抗寒矮化砧木,于1995年11月通过省农作物品种委员会审定。77—34比M系砧木有较强的抗寒性,在1985～1986年和1993～1994年两次大冻害中,均没有发生冻害;在北纬43.3°,年均气温为5℃的吉林公主岭地区能安全越冬。77—34比M系砧木有较 相似文献
3.
77-34是由辽宁省果树科学研究所以M9为母本,以小黄海棠为父本,采取有性杂交方法育成的新型苹果矮化砧木,具有矮化、早果、丰产、苗木整齐、出圃率高、亲和性好、抗逆性强、适应性广等诸多优点,达到国际先进水平,已通过辽宁省农作物品种审定. 相似文献
4.
77—34是由辽宁省果树科学研究所以M9为母本，以小黄海棠为父本，采取有性杂交方法育成的新型苹果矮化砧木，具有矮化、早果、丰产、苗木整齐、出圃率高、亲和性好、抗逆性强、适应性广等诸多优点，达到国际先进水平，已通过辽宁省农作物品种审定。 相似文献
5.
辽宁省果树研究所选育出的苹果矮化砧木77-34,矮化性能与M7相近,属于半矮化砧木.用77-34与山定子、海棠、国光、富士等品种嫁接,成活率都在90%以上,尚未发现劈裂、折断、树体早衰等不亲和现象,有很好的亲和力.以77-34做中间砧的苹果树3 a开始结果,6 a进入盛果期,产量高于对照M7及M26为中间砧的树.77-34有较好的生根性能.组培生根率为87%～90%,略低于M26.77-34有比M26砧木更强的抗寒能力.在1月份平均气温达-16.2℃以上的地区均能露地安全越冬,用枝条电导法测定该砧木休眠枝条的半致死低温达-53℃.77-34在长江以北(北纬35°～45°)的广阔的地域,均能正常生长发育,显示出对自然条件很强的适应能力. 相似文献
6.
77—34是由辽宁省果树研究所在1977年以M_9为母本,用小黄海棠做父本,通过有性杂交,育成的新型苹果矮化砧木。它具有矮化、早果、丰产、苗木整齐、出圃率高、亲和性好、抗逆性强和适应性广等特点。已于1995年通过辽宁省农作物品种审定委员会审定,1999年经专家鉴定认为达到国际先进水平。 相似文献
7.
多年来笔者对矮化砧和矮化中间砧印象不好,主要是不抗旱、不抗风.如以77-33、77-34作中间砧的树越长越歪,结果树雨季还容易倒伏.但是以77-34作中间砧的'麦艳B'却能早产、丰产、稳产.
2003年笔者引进'麦艳B'苹果接穗,6月份嫁接在77-34中间砧上,2004年定植600株,面积0.67 hm2.同时栽植乔砧'麦艳B'苗木50株,对比砧木对'麦艳B'苹果产量的影响.…… 相似文献
8.
1 辽宁省苹果矮化砧木利用现状
1.1 苹果矮砧栽培现状
辽宁省苹果矮砧栽培开始于1965年,曾在大连、营口、葫芦岛等地尝试发展,但由于冻害、适应性及管理因素等原因,没有形成栽培规模.目前,辽宁省苹果矮砧栽培总面积约为0.97万hm2,占全省苹果栽培总面积的3.81％.其中10年生以上矮砧果园不足20 hm2,4～6年生矮砧果园0.05万hm2,3年生以下矮砧果园0.9万hm2,主要集中在沈阳市及周边地区.辽宁省应用的矮化砧木主要有GM256、77-34、辽砧2号、MAC9、M26等,利用方式均为中间砧,基砧为山定子.嫁接方法以芽接为主,苗木为2年出圃的快苗,栽培株行距为2～3 m×3～4 m. 相似文献
9.
正1锦绣海棠灯塔市位于辽宁中部,试栽地位于灯塔市最北边的沈旦镇,与沈阳市苏家屯区交界,北纬41°36',东经122°51'。年平均气温8.5℃,1月份平均气温-12.5℃,极端最低温-32.9℃,年降雨量772.9 mm,≥10℃积温3 400℃以上。因气候条件不适,辽宁省中北部地区没有中晚熟的优质苹果品种,2010年春笔者从通辽林科所引进乔砧‘锦绣海棠’苗50株,以株行距3 m×3 m栽植于沈旦镇沈旦村的示范园。通辽年平均气温5.8℃,1月 相似文献
10.
不同砧穗组合对苹果苗木生长的影响 总被引：1，自引：0，他引：1
《中国果树》2020,(4)
对辽宁省果树科学研究所选育的苹果品种'岳冠'岳阳红'望山红'与4种矮化砧木嫁接后的苗木生长情况进行调查。测定2年生矮化自根砧苗木的侧根数、苗木粗度、分枝情况、苗木高度、成活率等指标,并参考苹果苗木国家标准进行苗木等级划分。综合对比各矮化自根砧苗木,岳冠/GM256、岳阳红/GM256、岳阳红/M9T337、望山红/GM256 4个砧穗组合的苗木高度、苗木粗度、分枝情况、成活率及成苗情况优于同期的其他砧穗组合。 相似文献
11.
AIM: Although endovascular radiotherapy inhibits neointimal hyperplasia, the exact alterations induced by β-particles irradiation remain to be elucidated. The objective of this study was to investigate the ability and the cellular mechanism of local β-particles emission from 188Re to inhibit vascular smooth muscle cells (SMCs). METHODS: The SMCs in vitro were irradiated by 188Re with single doses of 2.6 Gy-25.8 Gy. The effects of β-particles on SMCs, such as effective irradiate doses, the period of inhibition for SMCs proliferation, the changes of cell proliferation rate and DNA synthesis rate, cell cycle progression and related gene expression, were investigated by cell count, [3H]-TdR incorporation, cell cycle progression analysis, cell viability and immunocytochemistry, respectivecy. RESULTS: β-particles irradiation with dose of 5.2 Gy could inhibit significantly SMCs proliferation. At dose of 20.6 Gy DNA synthesis inhibitory rate was 92%, SMCs proliferation rate was only 3%. Renoval of 188Re did not abolish the inhibitory effects of β-particles on SMCs proliferation. The expression of P53 was up regulation and PCNA was down regulation after irradiation. CONCLUSION: β-particles from 188 Re was significantly effective and permanent in inhibiting SMCs proliferation, and inhibitory effect was in dose-dependet manner ED50was 5 Gy, the best dose to inhibit SMCs proliferation was 20 Gy. β-particles irradiation induced SMCs to occur G0/G1 arrest, damaged the ability of SMCs reproliferation and led to cell clonogenic death. P53 and PCNA had regulatiory effects on SMCs proliferation after β-particles irradiation. 相似文献
12.
AIM:To study the effect of L-Arg on plasma content of endothelin (ET) and the expression of proto-oncogene c-fos mRNA in the left ventricle of rats with renovascular hypertensive hypertrophy. METHODS: The level of c-fos mRNA were measured by in situ hybridization. The ET in plasma were measured by radioimmunoassay. RESULTS:After eight weeks of treatment with L-Arg, the expression of c-fos decreased markedly (P＜0.01). The ET content in plasma also decreased significantly by L-Arg(P＜0.01).CONCLUSION: Plasma ET content and the expression of c-fos in the left ventricle of rats with renovascular hypertensive hypertrophy could be decreased by L-Arg administration. 相似文献
13.
Zusammenfassung Die Leistungsprüfungen wurden im Zeitraum 1997 bis 2003 mit den Unterlagen Gisela 4 und 5, den Klonnummern 195/20 und 497/8 aus der Gisela-Serie sowie Weiroot 10, 13, 53, 72 und 158 durchgeführt. Dabei dienten Sämlinge von P1 (bulgarische Selektion aus Prunus mahaleb) als Kontrolle. Alle Unterlagen waren mit der Sorte Stella veredelt und im Dezember 1996 in der Versuchsanlage der Agraruniversität in Plovdiv, Bulgarien, im Abstand von 6 m×4,5 m gepflanzt worden. Dabei erfolgte ein Pflanzschnitt. Nach Abschluss der natürlichen Kronenentwicklung wurde jedes Jahr ein Winterschnitt vorgenommen. Der Boden wurde durch mechanische Bearbeitung offen gehalten und nach dem 4. Standjahr wurden die Baumstreifen mit Herbiziden behandelt. Die Wasserversorgung erfolgte durch eine dem natürlichen Gefälle folgende Überflutung, allerdings nicht immer zum optimalen Zeitpunkt, da keine eigene Wasserquelle zur Verfügung stand.Basierend auf den Ergebnissen bis zum Anfang des 7. Standjahres können die untersuchten Unterlagen in zwei Gruppen differenziert werden: starkwüchsig—Weiroot 10, P1 und Weiroot 13; mittelstarkwachsend bis schwachwüchsig—Gi 497/8, Gisela 4, Weiroot 53, Weiroot 158, Gi 195/20, Weiroot 72 und Gisela 5. Letztere zeichnete sich durch besondere Schwachwüchsigkeit aus. Die meisten Wurzelschosser bildeten Gisela 4, Weiroot 10 und Weiroot 13. Weiroot 53, Weiroot 72 und Weiroot 158 entwickelten deutlich weniger und P1, Gisela 5, Gi 195/20 sowie Gi 497/8 keine Wurzelschosser. Den frühesten Blühbeginn induzierte Gisela 4. Die anderen Unterlagen führten, in Abhängigkeit von den Temperaturbedingungen des jeweiligen Jahres, zu einer Verspätung der Blüte: P1 und Weiroot 10 um 1–2 Tage; Gi 497/8, Weiroot 13 und Weiroot 158 um 2–4 Tage; Weiroot 72 um 2–7 Tage; Gi 195/20 um 3–6 Tage; Weiroot 53 um 3–8 Tage und Gisela 5 um 3–10 Tage. Die Reifezeit der Früchte war bei den Bäumen auf Gisela 5 im Vergleich zu den anderen Varianten um 2–3 Tage verspätet. Gisela 5, Weiroot 72 und Gisela 4 induzierten bei der aufveredelten Sorte die höchsten Ertragsleistungen, P1 die geringsten. Bei den Bäumen auf Gisela 5 war die Fruchtgröße geringer als bei den anderen Unterlagen. Bäume auf Gisela 5 brauchen intensive Pflege. Nur wenn alle Produktionsfaktoren und kulturtechnischen Maßnahmen optimiert werden, kann das hohe Ertragspotenzial dieser Unterlage ausgeschöpft werden. 相似文献
14.
《International Journal of Fruit Science》2013,13(3):101-120
Abstract Saskatoon berry (Amelanchier alnifolia Nutt., Rosaceae) and blueberry (Vaccinium corymbosum L., Ericaceae) are substantially equivalent in all characteristics that are important to the consumer, including fruit color, shape, size, nutrition, texture, and uses. In addition, both fruits are native to North America and they have practically identical historical uses and known health benefits. Their composition, processing, nutritional value and metabolism, intended uses, and levels of undesirable substances are compared. 相似文献
15.
多效唑对猕猴桃离体试管苗生长及内源激素的影响 总被引：18，自引：0，他引：18
多效唑（ＰＰ３３３）处理猕猴桃试管苗，降低了其生长强度；植株体内的ＧＡ３、ＩＡＡ和ＺＴ含量下降，ＡＢＡ的含量上升，乙烯释放率增加；并且能降低外源的ＧＡ３和ＩＡＡ促进生长的作用，而外源的ＧＡ３和ＩＡＡ又能不同程度地逆转多效唑的抑制作用，使植株恢复生长。 相似文献
16.
HU Zhi-cheng ZHU Jia-yuan ZHU Bin GUO Dong CHEN Bin ZHANG Kai HU Kun-hua LI Ming-tao TANG Bing 《园艺学报》2011,27(9):1802-1806
AIM: To investigate and screen the sensitive proteins in the formation mechanism of pathological scars by comparing the results of differential proteomic analysis between pathological scars and normal skin.METHODS: Two-dimensional gel electrophoresis was used to detect the protein expression profiles in 8 keloid patients, 8 hypertrophic scar patients and 3 matched normal skin patients.The proteins that showed differential expression of over 4-fold change were cut and analyzed by MALDI-TOF/TOF mass spectrometry.RESULTS: A two-dimensional protein profiling comparison between pathological scars and normal skin was successfully established.On average, 2 978 spots in keloid, 2 975 spots in hypertrophic scar and 3 053 spots in normal skin were identified using gel analysis software.Compared with normal skin, there were totally 36 differentially-expressed proteins in keloid and hypertrophic scar identified from the spots of over 4-fold change, including 16 proteins in both keloid and hypertrophic scar (8 up-regulated and 8 down-regulated), 11 only in keloid (9 up-regulated and 2 down-regulated) and 9 only in hypertrophic scar (4 up-regulated and 5 down-regulated).CONCLUSION: Proteomic analysis can identify the proteins with variance of pathological scars versus normal skin, thus providing probable new clues to reveal the formation mechanism of pathological scars. 相似文献
17.
The objective of this study was to establish a cryopreservation protocol for hawthorn shoot apices (Crataegus pinnatifida Bge.). Cryopreservation was carried out via encapsulation–dehydration, vitrification, and encapsulation–vitrification on shoot apices excised from in vitro cultures. We began by showing that cold-acclimation enhanced the regrowth of cryopreserved apices from 10.0 to 65.5% in encapsulation–dehydration. We then decided that the encapsulation–dehydration method was an optimal cryopreservation method for hawthorn shoot apices in terms of its high recovery after cryopreservation as well as its ease of use compared with vitrification and encapsulation–vitrification. In encapsulation–dehydration, the protocol leading to optimal regrowth was as follows: after cold-acclimation at 5 °C in the dark for 2 weeks, excised shoot tips were pretreated for 24 h at 25 °C on hormone-free Murashige and Skoog [Murashige, T., Skoog, F., 1962. A revised medium for rapid growth and bioassays with tobacco tissue culture. Physiol. Plant. 15, 473–497] (MS) basal medium with 0.4 mol/L sucrose, then encapsulated and precultured in liquid MS medium with 0.8 mol/L sucrose for 16 h at 25 °C. Precultured beads were dehydrated for 6 h at 25 °C in the dessicator containing 50 g silica gel to a moisture content of 15.3% (fresh-weight basis) before cryostorage for 1 h. In addition, we examined the effect of adding glycerol to both the alginate beads and loading solution to enhance regrowth after cryopreservation in encapsulation–dehydration. In the present study, it was shown that adding 0.5 mol/L glycerol resulted in high regrowth percentages (82.5–90.0%) in four Crataegus species. 相似文献
18.
AIM:To investigate the effect of metallothionein(MT) on proliferation of rat vascular smooth muscle cells (VSMCs) stimulated by homocysteine and its mechanism. METHODS:VSMCs proliferation was measured by [3-H]-TdR incorporation, mitogen-activated protein kinase(MAPK)activity were determined by immunoprecipitation method, the intracellular contents of MT and malondialdehyde (MDA)were assayed by -hemoglobin saturation method and TBA reaction, respectively, and lactate dehydrogenase (LDH) leakage was measured by NADH oxidation. RESULTS:Hcy(10-6-10-4 mmol/L) stimulated [3-H]-TdR incorporation by the VSMCs in a concentration-dependent manner. Compared with control, [3-H]-TdR incorporation in VSMCs treated with 0.1 mmol/L Hcy was increased by 4.2 fold (P＜0.01). Meanwhile, Hcy enhanced MAPK activity, MDA formation and LDH release (P＜0.01)in a concentration-dependent manner. Treatment of VSMCs with MT alone did not change above parameters, compared with control. However, MT (10-6-10-4 mol/L)attenuated significantly Hcy-stimulated proliferation of VSMCs (P＜0.01)in a concentration-dependent manner. And MT inhibited obviously Hcy-induced activation of MAPK activity, MDA formation and LDH release. Preincubation of VSMCs with 0.5 mmol/L ZnCl2 for 6 h induced an increase cellular MT content by 5.7-fold (P＜0.01). The MT-overexpressed VSMCs resisted Hcy-stimulating action on MAPK activity, MDA formation and LDH leakage (P＜0.01). CONCLUSION:These results show that MT has an inhibitory effect on Hcy-induced VSMCs proliferation, and that MT could inhibit Hcy-stimulated MAPK activity and lipid peroxidation. 相似文献
19.
Duncan Brean W. Boyle Shannon Breininger David R. Schmalzer Paul A. 《Landscape Ecology》1999,14(3):291-309
Historic landcover dynamics in a scrubby flatwoods (Tel-4) and scrub landscape (Happy Creek) on John F. Kennedy Space Center were measured using aerial images from 1943, 1951, 1958, 1969, 1979, and 1989. Landcover categories were mapped, digitized, geometrically registered, and overlaid in ARC/INFO. Both study sites have been influenced by various land use histories, including periods of range management, fire suppression, and fire management. Several analyses were performed to help understand the effects of past land management on the amount and spatial distribution of landcover within the study sites. A chi-squared analysis showed a significant difference between the frequency of landcover occurrence and management period. Markov chain models were used to project observed changes over a 100-year period; these showed current management practices being effective at Tel-4 (restoring historic landscape structure) and much less effective at Happy Creek. Documenting impacts of past management regimes on landcover has provided important insight into current landscape composition and will provide the basis for improving land management on Kennedy Space Center and elsewhere. 相似文献
20.
AIM: Previous studies performed with XBP-01 in vitro indicated that XBP-01 could inhibit vascular smooth muscle cells from being transformed into foam cell and could eliminate the atherosclerotic plaque in C57BL/6J mouse. This experiment is to investigate its mechanism of eliminating plaques in vitro. METHODS: The cultured porcine artery smooth muscle cells incubated with XBP-01 of 0.1 mg/L for 24 h after preincubated with oxidized low density lipoprotein of 15 mg/L for 72 h in vitro. The samples were analyzed by fluorescence microscope, confocal microscope system and flow cytometry. RESULTS: Apoptosis was triggered by being incubated with oxidized low density lipoprotein and this process was accelerated additionally by being incubated with XBP-01. CONCLUSION: XBP-01 can be effective in eliminating atherosclerotic plaque by accelerating the process in which oxidized low density lipoprotein induced smooth muscle cell apoptosis. 相似文献