共查询到20条相似文献，搜索用时 216 毫秒
1.
^3H—BA在脐橙果实内的吸收与残留研究 总被引：2，自引：0，他引：2
用３Ｈ－ＢＡ＋ＧＡ３处理枳（Ｐｏｎｃｉｒｕｓｔｒｉｆｏｌｉａｔａ）砧‘清家’脐橙（Ｃｉｔｒｕｓｓｉｎｅｎｓｉｓ）幼果。果实对３Ｈ－ＢＡ的积累速度以处理后２４ｈ内最快。此后，随时间的延长而趋缓。至９月１日，果实内３Ｈ放射活性累积量达峰值。之后果实内３Ｈ放射活性累积出现负增长。成熟期间，果实内３Ｈ放射活性累积量比峰值减少约４０％。３Ｈ－ＢＡ浓度在处理后２４ｈ即达０．４５μｇ／ｇＦＷ，４天后达峰值０．５６μｇ／ｇＦＷ，然后逐渐降低，成熟期仅为０．００５μｇ／ｇＦＷ，且此时果肉中检测不到３Ｈ－ＢＡ残留。１１月１日，检测与处理果不同距离处着生的不同时期叶片以及枳砧根系，均未发现３Ｈ－ＢＡ残留。 相似文献
2.
桔对^3H—PP333的吸收运转 总被引：3，自引：0，他引：3
＾３Ｈ－ＰＰ３３３处理枳砧华盛顿脐橙不同时期春、夏耠成熟叶片，幼嫩秋梢，半个月后，共吸收量一般仅占处理量的０．２％左右，被吸收的＾３Ｈ－ＰＰ３３３在大部分情况下主要滞留在处理部位。向外转运时，越远离处理部位，被转远的量越少，能运至根系的极少。土施时，根系对ＰＰ３３３吸收缓慢，其吸收率随时间的延长而缓慢增加，２个月后仅占处理量的０．０２５％。吸收转移至地上部的量也随时间的延长而增加。根系对ＰＰ３３３ 相似文献
3.
4.
旱地龙等药剂提高柑橘品质的试验 总被引：3，自引：0，他引：3
旱地龙营养液具有多种矿质营养和１６种氨基酸，本试验探讨该营养液对柑橘生长和橘果品质的影响。现将试验结果小结如下：１ 试验材料及方法１．１ 试验材料 试验设在路桥区金清镇上塘橘园内．在１１年生早熟温州蜜柑园中应用．使用药剂为旱地龙、Ｂ液、ＧＡ３、ＫＨ２ＰＯ４。１．２ 处理 ①旱地龙５００倍；②旱地龙５００倍＋ＧＡ３２０×１０－６；③旱地龙５００倍＋Ｂ液１０×１０－６＋０．３％ＫＨ２ＰＯ４；④对照。１．３ 试验方法①每处理３株，３个重复：②喷药时间，第一次在６月９日，第二次为７月２４日，第三次为９月… 相似文献
5.
无核枇杷生产技术研究 总被引：13，自引：0，他引：13
用２５０×１０＾－６,５００×１０＾－６和１０００×１０＾－６ＧＡ对“霸红”枇杷花穗进行喷雾均可诱导无核果实,花前处理效果好于其他时间处理。对ＧＡ诱导的无核枇杷幼果用ＣＰＰＵ＋ＧＡ处理可促进其膨大并减少脱落,多次使用效果更好。花后每月一次用３０×１０＾－６ＣＰＰＵ＋５００×１０＾－６ＧＡ喷雾４次获得了商品果大小的无核枇杷。 相似文献
6.
几种植物生长调节剂对葡萄果实大小品质的效应 总被引：3，自引：1，他引：2
对ＣＰＰＵ、ＧＡ３ＰＤＪ和Ｓ－ＡＢＡ等几中植物生长调节剂组合对葡萄果实大小和品质的影响进行了研究，结果表明：在盛花期前１０天ＧＡ３５０×１０＾－６配合盛花后１０天ＣＰＰＵ１０×１０＾－６和ＧＡ３１０×１０＾－６混合处理，增大白香蕉葡萄果穗和果粒重量的效果明显，同时增加了果实可溶性固形物含量和着色度。在盛花后１５天ＣＰＰＵ５×１０＾－６配合果实着色始期ＰＤＪ２５０×１０＾－６的处理，可明显增大藤稔葡 相似文献
7.
GA3对乙烯利抑制黄瓜苗生长的逆转效应 总被引：1，自引：0，他引：1
黄瓜幼苗经过５００×１０＾－６乙烯利喷苗处理，严重抑制了黄瓜幼苗的生长，并趋向老化；用ＧＡ３三种浓度（５×１０＾－６、１０×１０＾－６、２０×１０＾－６）喷叶处理后，有效地逆转了乙烯利对黄瓜幼苗的影响，使其趋向于壮苗。在三种浓度或以１０×１０＾－６处理的效果最好。 相似文献
8.
外源ABA和GA3处理对人工控制条件下柑桔抗冻力的影响 总被引：1，自引：0，他引：1
在植物人工气候箱条件下，研究了叶面喷布１００×１０＾－６ＡＢＡ和ＧＡ３对锦橙实生苗抗冻力的影响。结果表明，ＡＢＡ可在非锻炼条件（昼２０℃／夜１０℃）下提高抗冻力１．２６℃（处理后第５天）和２．２６℃（处理后第１０天）；而ＧＡ３则在锻炼条件（昼１０℃／夜５℃）下降低抗冻力１．２４℃（处理后第５天）和２．００℃（处理后第１０天）。 相似文献
9.
利用塑料大棚进行桃树促成栽培时,可以采用接芽苗建园,其技术要点如下。１ 苗木质量及栽前处理选用无病虫害的优质接芽苗,芽体饱满,不翘皮,砧木基径１．５～２．０ｃｍ,品种可选曙光,瑞光－３,瑞光－５,早红珠等。定植前１天剪根,凡大于０．３ｃｍ以上的根全部截去０．３～０．５ｃｍ,使其露出新茬,用清水浸泡１２～２４小时,使苗木充分吸水。定植前再用１００×１０－６的ＡＢＴ－３号生根粉液浸泡根部６～８小时。２ 选地定植选ｐＨ值６．５～７．０、土壤深厚、富含有机质的砂壤土,棚内开定植沟,沟距２ｍ,深宽各５０ｃ… 相似文献
10.
苹果离体新梢在继代培养过程中，以２０００一３０００ｌｘ光照１０ｈ对增殖、生长较好，而以２０００ｌｘ、１０ｈ效果更为理想；昼夜变温２８℃／２４℃与恒温（２６℃）处理增殖和生长无显著差异，但在昼夜２６℃／２２℃、２４℃／２０℃变温下降低了增殖量与有效新梢数；长富２号增殖和生长以ＭＳ＋ＢＡ１ｍｇ·ｌ￣（－１）＋ＩＢＡ０．１ｍｇ·ｌ￣（－１）＋ＣＨ２００ｍｇ·ｌ￣（－１）效果较好，但依继代次数和新梢状态可在ＢＡ０．７一１．０ｍｇ·ｌ￣（－１），ＩＢＡ（或ＩＡＡ）０．１一０．２ｍｇ·ｌ￣（－１）（Ｈ３０一２００ｍｇ·ｌ￣（－１）范围内变动。 相似文献
11.
为了促进巴梨果实膨大,用BA(细胞分裂素)和GA(赤霉素,指GA4 7,下同)进行了试验。结果表明,在盛花期喷布20mg/L～30mg/L的BA显著促进果实增大,对果实品质影响很小;喷布20mg/LBA 20mg/LGA促进果实增大的效果最好,但由于产生了部分特大果和变形果,影响果实商品价值。从综合效果考虑,认为以20mg/L的BA在盛花期处理比较适宜。 相似文献
12.
温度、节位和BA对蝴蝶兰花茎腋芽生长的影响 总被引：6，自引：0，他引：6
蝴蝶兰腋芽进行试管培养。在一定温度范围内。高温有利于形成营养枝，低温有利于形成花枝。高节住腋芽不易萌发，倾向休眠。从0到5mg/kg(毫克／公斤)浓度范围内，较高温度下。高浓度BA有利于腋芽萌发成营养枝。 相似文献
13.
The Growth of Apple Central Fruits as Affected by Thinning with NAA,BA and Naphthenic Acids 总被引：1，自引：0，他引：1
Biserka Milić Jelena Tarlanović Zoran Keserović Lana Zorić Bojana Blagojević Nenad Magazin 《Erwerbs-Obstbau》2017,59(3):185-193
Plant growth regulators such as α?naphthylacetic acid (NAA) or 6?benzyladenine (BA) are commonly used for thinning apple fruits. NAs exhibits an auxin- and gibberellin-type biological activity, stimulate the uptake and translocation of auxins in plant tissue, as well as IAA synthesis and act as surfactants. It was assumed that NAs applied at the stadium of early fruit growth might cause fruit abscission in apple, similarly to NAA. The goal of the research was to test the presumed thinning effect of naphthenic acids on apple cultivars ‘Golden Delicious’ and ‘Red Delicious’. Three treatments were applied on both apple cultivars including 16.5?μL L?1 NAA, 200?μL L?1?BA and 2.63?mg L?1?potassium salts of NAs. Cortical cell size and the number of cell layers were measured in order to determine the contribution of cell size and cell division in early fruit growth, as affected by chemical thinning treatments. The effects of plant growth regulators NAA, BA and NAs on fruit set, fruit size and the anatomy of the fruit cortex highly depend on varietal differences. In ‘Golden Delicious’ fruit set reduction by chemical thinning increases both the number of cell layers and cell size of apple fruit, while in ‘Red Delicious’ NAA inhibits fruit growth, while BA is ineffective. Cell growth promoting activity of NAA and NAs, accompanied by the decrease in fruit set and reduced competition among fruits within the canopy, results in a significant fruit weight increase at harvest. The research confirms the auxinic properties of NAs, and their assumed thinning activity. 相似文献
14.
《International Journal of Fruit Science》2013,13(4):93-101
Abstract BA 29 and EMA (Cydonia oblonga L.) plants were grown in a 1:1 sand:perlite mixture and irrigated with nutrient solutions containing two B concentrations (0.025 and 0.2 mM) combined with two salinity (electrical conductivity, EC) levels (0.75 and 4 dS-m-1). The lowest growth of plants was recorded when 0.2 mM B was combined with 4 dS-m-1 in the nutrient solution. As salinity (EC) level increased from 0.75 to 4 dS-m-1, P, Ca and Fe concentrations of leaves decreased. The potassium concentration of leaves of both rootstocks increased, as salinity levels (induced by KCl) increased. The two quince genotypes respond differently for the same treatments, indicating a genotypic effect. 相似文献
15.
16.
17.
《Scientia Horticulturae》2005,104(3):237-247
In order to initiate cell and embryo suspensions, embryogenic calluses derived on NN solid medium with 2,4-D and BA from petioles of in vitro grown plants of three interspecific grapevine hybrids were cultured in three versions of liquid NN medium: (1) without growth regulators, (2) 0.1 mg l−1 IAA and (3) 0.5 mg l−1 BA. Cell and embryo suspensions were incubated two and three times in these versions of liquid media in various combinations. Incubating suspensions two times in hormone-free media and/or with 0.1 mg l−1 IAA led to formation of globular embryos in the three cultivars studied and small numbers of heart-stage embryos in ‘Podarok Magaracha’ and ‘Intervitis Magaracha’. Numerous heart-stage embryos developed in ‘Intervitis Magaracha’ and ‘Podarok Magaracha’ when the suspensions had been initiated in medium with 0.5 mg l−1 BA, and in ‘Bianca’ this was achieved after two incubations in the above medium. Torpedo-stage embryos were formed after subculturing heart-stage embryo suspensions in medium with 0.1 mg l−1 IAA in all study cultivars. If only small numbers of embryos of a certain developmental heart- or torpedo- stage were formed, such cell and embryo suspensions need to be repeatedly subcultured in liquid medium with specific growth regulators to enable this process. 相似文献
18.
《Scientia Horticulturae》2001,87(1-2):65-76
Four days of 90% shading at the time of fruit setting (1–5 days after petal fall, DAPF) of mature ‘Jonagold’/M.9 apple trees was combined with the application of thinning agents to establish the possible interaction of both main treatments on fruit retention, and the effects of the main treatments on fruitlets CO2 exchange and their carbohydrate concentration. Shading alone reduced yield by up to 35%. When shading was followed by the application of 15 ppm 1-naphthaleneacetic acid (NAA) or 50 ppm 6-benzyladenine (BA), the interaction between shading and chemical thinners was on the border of significance. Following the assumption that abscission was induced by shading before the application of chemical thinning agents, the same process of diminished dark respiration rate (Rd) was found on fruitlets sampled 3 days after the end of shading and 7 days after NAA and BA spraying, i.e. in the fruitlets that were considered prone to drop. A week after the end of shading the abscission of fruitlets due to shading was completed and on the remaining fruitlets that were not prone to abscission any more, larger negative net CO2 assimilation rates (A) and enhanced Rd were recorded. Fruitlets prone to abscission sampled 2 days after the end of shading showed a lower concentration of glucose and ascorbic acid and a higher concentration of starch. Eight days after the end of shading, the fruitlets from shaded trees that were not prone to abscission any more contained less fructose while the fruitlets from NAA and BA sprayed trees had a higher concentration of fructose a week after application. The results do not support the hypothesis that a good assimilate supply is needed for the retention of apple fruitlets, because the fruitlets retained on trees expressed even stronger CO2 loss and because the concentration of non-structural carbohydrates did not decrease in fruitlets prone to drop with the exception of glucose. 相似文献
19.
F. Famiani N. Ferradini P. Staffolani A. Standardi 《The Journal of Horticultural Science and Biotechnology》2013,88(4):679-685
SUMMARYThe effect of benzyladenine (BA) concentrations both during the last proliferating subculture before regeneration (10-222 and, 444 µM) and during organogenesis (11.1 and 22.2 µM), leaf excision time (15 and 30 d from the beginning of the subculture), leafage and dark treatments, on adventitious shoot regeneration of M.26 apple roostock were evaluated. Leaves excised 30 d after the beginning of the last proliferating subculture and grown wkhout BA in thè medium gave the highest percentages of organogenesis, while the number of "regenerated shoots per leaf did not differ significantly among the different BA x leaf excision time combinations. The highest BA concentration (22.2 µM) in the organogeneticmedium produced thehighest percentage of regenerating leaves, with no differences between the lengths and numbers of shoots per regenerating leaf. The first twMjnfurled apical leaves showed a greater regenerative ability than the third and fourth ones, whereas the lengths and numbers of regenerated shoots per leaf were similar. The highest leaf organogenetic ratejyas observed when darkness was imposed at the begirP-ning of the last proliferating subculture and/or at the beginning of the organogenetic phase, but more regenerated shoots per leaf were obtained with darkness provided at the beginning or at the end of the lastproliferating subculture; shoot lengths were similar in all the dark treatments. The great influence onorganogenesis of all the treatments applied in the last proliferating subculture indicates the importance of this stage inpreparing explants for shoot regeneration and thus the possibility of using inductive factors in this phase. 相似文献
20.
BA和GA3对华盛顿脐橙幼果^14C—光合产物调配的影响 总被引：10，自引：2，他引：8
华盛顿脐橙谢花后,用BA、GA_3和BA GA_3涂果,涂果后1-2周,引入~(14)CO_2标记光合产物,两年的研究表明,在第一次生理落果期间,各处理涂果后幼果中~(14)C-光合产物放射比强度大小为BA GA_3>BA>GA_3>CK。在第二次生理落果期间,各处理涂果后则为BA GA_3>GA_3>BA>CK。此结果与其分别减少第一和第二次生理落果的作用大小相一致。 相似文献