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1.
主要介绍花生新品种粤油79的试验材料和方法、试验结果、试验分析和小结的试验情况。  相似文献   

2.
《中国瓜菜》2015,(2):6
<正>据农技种[2014]440号文对2015年国家西瓜甜瓜品种试验工作的安排,2015年国家无子西瓜品种试验;小果型西瓜品种试验(设施);中果型西瓜品种试验和厚皮甜瓜品种试验(设施)及薄皮甜瓜生产试验已在21个省市区落实了39个试点。2015年国家品种试验统一考察确定7月到天津、河北和黑龙江试点现场。2015年品种鉴定与2016年参试品种的申报均需8—9月与国家品种试验鉴定委员会办公室联系完成。2015年国家品种试验年会10月将在湖南省举办。  相似文献   

3.
陈秀洁 《吉林蔬菜》2022,(4):121-122
1试验目的根据2021年化肥减量增效项目实施方案要求,2022年将继续开展肥料利用率田间试验,研究新型肥料模式下玉米肥料利用率,现将试验结果总结如下。2试验材料2.1试验时间2021年5月1日至2021年11月1日。2.2试验地点彰武县兴隆山镇花家村,试验地点基本情况(详见表1)。  相似文献   

4.
今年江安县以全国基层农技推广体系改革与建设示范县为契机,紧紧围绕项目建设要求,在全县建立柑桔良种苗木繁育科技试验示范基地、晚棱脐橙标准化科技试验示范基地.新建优质柑桔科技试验示范基地、劣质果园改造科技试验示范基地、柑桔绿色防控科技试验示范基地等5个水果科技试验示范基地。  相似文献   

5.
以星光牌有机沼肥和"碧娇"樱桃番茄为试材,采用不同的施肥方法,研究了沼肥对大棚番茄生长性能的影响。结果表明:沼肥不仅能促进番茄蔓的生长,增强植株的抗逆作用和光合作用,而且还可以提高产量。经移栽后,对照组成活率为90%,试验Ⅰ组为95%,试验Ⅱ组为100%;栽种15d后,对照组、试验Ⅰ组及试验Ⅱ组蔓长平均分别为78、81和85cm,2个试验组蔓的生长速度均比对照组快,试验Ⅱ组比试验Ⅰ组和对照组多长4和7cm,差异不显著(P0.05),30d后,对照组、试验Ⅰ组及试验Ⅱ组蔓长平均分别为128、135和145cm,试验Ⅱ组比试验Ⅰ组和对照组多长10和17cm,差异显著(P0.05);对照组、试验Ⅰ组及试验Ⅱ组的产量分别为1 356、1 645和2 001kg,试验Ⅱ组分别比对照组和试验Ⅰ组多产645kg和356kg,差异显著(P0.05);667m2纯收入,试验Ⅱ组为9 405元,试验Ⅰ组为7 696元,对照组为6 509元,试验Ⅱ组比对照组和试验Ⅰ组分别多收入2 896元和1 709元,效益非常可观。  相似文献   

6.
为了提高黑木耳的选种效率,利用TTC-脱氢酶还原法检测黑木耳菌丝活力,并利用液体深层培养和栽培试验进行验证。结果表明:TTC试验结论与液体深层培养试验和栽培试验结论一致,试验表明M10菌株细胞活力最强,M14菌株细胞活力最弱,证明了TTC试验结论的可靠性,此方法可在室内快速检测黑木耳菌丝活力。  相似文献   

7.
为了探索观赏甜菜配套栽培技术,进行了浸种时间对种子发芽的影响试验、不同药剂处理播种土对成苗率的影响试验、3种不同土质的土壤对观赏甜菜生长的影响试验、施肥量试验、密度试验,摸索总结出观赏甜菜关键栽培技术。  相似文献   

8.
通过对植物单位面积滞尘量测定试验方法的总结,着重分析试验前植物材料选择、试验操作过程步骤对试验精确度产生的影响。  相似文献   

9.
通豆6号为菜用大豆新品种,该文通过开展品种比较试验、播期试验、栽培密度试验、施肥试验、虫害防治试验等研究,总结了通豆6号菜用大豆在启东地区的高产高效栽培技术,供广大菜农参考。  相似文献   

10.
辣椒病毒病是辣椒生产上重要病害,常造成死棵减产,极大影响了产量与收益。为筛选防治辣椒病毒病效果较好的农药,我们引进了新农药20%迁毒,开展了田间药效试验,现将试验结果介绍如下。1材料与方法1.1试验材料试验药剂为20%迁毒,对照药剂为菌克毒克。1.2试验方法试验设在上海春蔓地蔬菜基地,试验田块为中  相似文献   

11.
AIM: To detect the expression of cytoplasmic inhibitor of apoptosis protein 2 (c-IAP2) and growth arrest-specific gene 1 (GAS1) in Hodgkin's lymphoma (HL) and anaplastic large cell lymphoma (ALCL) and to investigate the role of two genes in the pathogenesis of HL and ALCL.METHODS: HE staining, the antibodies CD30, CD15, CD45RO and CD20 were used to screen the cases of HL and ALCL from 288 cases of lymphoma. The clarified HL and ALCL were subjected for immunohistochemical staining by SP and ABC methods to analyze the expression of c-IAP2 and GAS1. RESULTS: ①The positive rate of c-IAP2 in HL was 25/26(96.1%) while that in ALCL was 6/19(31.6%), there presented statistic significance between HL and ALCL groups(P<0.05), meanwhile the positive rate of GAS1 showed statistic significance between HL and ALCL groups(P<0.05). ②Two cases were showed to be a mixed type combined with large tumor cells of HL and relatively smaller tumor cells of ALCL.CONCLUSION: ①The different expression of c-IAP2 and GAS1 in HL and ALCL implied a different mechanism of oncogenesis and the different defects in the pathway of signal transduction of apoptosis in HL and ALCL;②Few cases showed an overlap and a likely transitional state between HL and ALCL; ③The different expressing manner of GAS1 and c-IAP2 in HL and ALCL implied the potential marks for the differential dignosis of two kinds of lymphoma.  相似文献   

12.
Fruit nutrient content and lipoxygenase (LOX) activity were determined in strawberry fruit to establish a relationship, if it exists, between nutrients, and LOX activity with the fruit malformation and nubbins or button berry disorders. Nearly 17% fruit were affected by malformation and 10% by nubbins in open-field-grown strawberries. ‘Etna’ produced higher proportion of malformed (22.7%) as well as button berries (16.9%) and ‘Sweet Charlie’ the lowest (8.9% and 3.3%, respectively). Dry matter content (%) was lower in malformed (5.2%) and button berries (3.23%) than normal berries (7.41%). The concentration of P and Mg did not differ significantly, but that of N and K was notably higher and of Ca and B was lower in malformed and button berries than normal berries. Consequently, the N/Ca and K/Ca ratios were higher in malformed and button berries. LOX activity was significantly higher in malformed as well as button berries than normal berries, with significant differences among cultivars. The correlations between N, K and malformed and button berries were positive and between Ca and B, and malformed and button berries were negative. Similarly, the correlation between LOX activity and malformed, and button berries were also positive, indicating that excess of N and K, and deficiency of Ca and B are related to the production of malformed and buttons or nubbins in strawberry.  相似文献   

13.
Tardigrade communities are affected by micro and macro-environmental conditions but only micro-environmental variables, and altitudinal gradients have been studied. We review previous reports of altitudinal effects and evaluate the influence by interacting macro- (climate, soils, biome, and others) and micro-environmental (vegetation, moss and leaf litter) factors on tardigrade assemblages at the Sierra de Guadarrama mountain range (Iberian Central System Mountains, Spain). Terrestrial tardigrade assemblages were sampled using standard cores to collect leaf litter and mosses growing on rocks. General Linear Models were used to examine relationships between Tardigrada species richness and abundance, and macro- and micro-environmental variables (altitude, habitat characteristics, local habitat structure and dominant leaf litter type, and two bioclimatic classifications). Variation partitioning techniques were used to separate the effects of altitude and habitat variation, and to quantify the independent influences of climate and soil, vegetation structure and dominant type of leaf litter. Altitude shows a unimodal relationship with tardigrade species richness, although its effect independent of habitat variation is negligible. The best predictors for species richness were bioclimatic classifications. Separate and combined effects of macro-environmental gradients (soil and climate), vegetation structure and leaf litter type are important determinants of richness. A model including both macro- and micro-environmental variables explained nearly 60% of tardigrade species richness in micro-scale plots. Abundance was significantly related only to soil composition and leaf litter type. Tardigrade abundance was not explained by macro-environmental gradients analysed here, despite a significant correlation between abundance and richness.  相似文献   

14.
西瓜甜瓜嫁接栽培技术研究进展   总被引:31,自引:19,他引:12  
综述了西瓜甜瓜嫁接栽培的意义、嫁接技术的研究和应用概况,详细论述了嫁接在亲和性、抗病抗逆性、产量、品质等方面生理和机理研究进展,探讨了西瓜甜瓜嫁接栽培的应用前景及存在的问题。  相似文献   

15.
大蒜是世界性的药食同源植物,其营养、药用成分及功能得到了广泛关注和研究。本文从传统医学实践到现代生物医学实验的不同层面和维度对大蒜的食用和药用价值,以及功能性成分、药理作用的国内外研究进展进行了综述,并讨论了大蒜的合理开发利用和药食产业发展前景。  相似文献   

16.
ABSTRACT

The deployment of plantain shade and irrigation (5- and 10-day) intervals) for enhancing survival, field establishment, flowering and pod production of field-grown cacao seedlings in the dry season was investigated. The effects of dry season irrigation was profound on cacao growth, field establishment (over 90% seedling survival) and development, flowering and pod production. For the non-irrigated moderately shaded cacao, about 30% of the transplanted seedlings survived and the achievable percent survival from the various shade-irrigation combinations ranged from 47–90%. Open sun in combination with 5-day irrigation interval had best results in term of growth (root and shoot development and biomass accumulation) and establishment, flowering and pod production. Lower values of air and soil temperatures were obtained for combination of irrigation and shade regimes (dense and moderate) and higher soil moisture contents. The shade-irrigation combinations ameliorated microclimate and enhanced growth and development, seedling survival, root and shoot development, advanced flowering and promoted uniform fruiting/pod production and total bean yield. The effects of dry season irrigation at 5- or 10-day intervals was profound on cacao growth, field establishment (over 90% seedling survival), flowering and pod production. Irrigated unshaded (open sun) cacao had best results in term of growth (root and shoot development and biomass accumulation) and establishment, flowering and pod production. The achievable percent survival from the various shade-irrigation combinations ranged from 47–90%. The drip irrigation strategy adopted ameliorated dry season terminal drought (hydrothermal stresses) and promoted cacao growth, survival and flower/pod production.  相似文献   

17.
AIM: To investigate the effects of Chinese medicine, Jinan injection, on ultrastructure and mitochondria in cultured lung cancer cell lines. METHODS: The cultured lung cancer cell lines PG and PAa were used and divided into 4 groups: control (C), cisplatin (DDP), Jinan (JA) and Jinan in combination with cisplatin (DJ), respectively. The changes of morphology and mitochondria membrane potential, intracellular Ca2+ and pH in every group were observed by inverted microscope and electronic microscope as well as by using flow cytometry, staining by rhodamine, Fluo-3 and BCECF, respectively. RESULTS: Degeneration cells showed chromatin condensation and peripheral congregation. In cytoplasm autophage lysosome increased and myelinoid body was seen easily. In mitochondria structure, where the space between the inner and outer membranes of these organelles expanded as the matrix was compressed. The electron-dense or swelled was observed as vacuole degeneration and its matrix showed electron-lucent. Compared to control, mitochondria membrane potential increased in every group after 24 h and 48 h treatment. DDP increased intracellular calcium ion in PG cells, however, in PAa cells, JA and DJ decreased it. Intracellular pH got lower at 24 h and higher at 48 h in PG and PAa cells. There were significance in every group vs control in PG and PAa by statistic t-test (P<0.01). CONCLUSION: Apoptosis was induced in PG and PAa cell lines by Jinan injection and DJ. Mitochondria matrix displayed electron-dense, mitochondrial potential, intracellular calcium ion and pH showed an increasing trend. Mitochondria damages may play an important role in apoptosis induced by Jinan and DJ.  相似文献   

18.
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   

19.
In a test with ‘Bartlett’ and ‘d'Anjou’ pear on 8 Pyrus (P.) rootstocks, leaves of ‘Bartlett’ were high in S and Fe on ‘Bartlett’ seedlings (BS), in Zn on P. ussuriensis Maxim. seedlings (USS), and in B on seedlings of P. calleryana Decne (Cal). Leaves of ‘d'Anjou’ were high in P, Zn and B on BS, in N on USS, and in S on Cal. Both ‘Bartlett’ and ‘d'Anjou’ were high in K and Ca on P. betulaefolia Bunge seedlings (Bet). Fruit of both ‘Bartlett’ and ‘d'Anjou’ were high in N, K and Mg on Bet and Cal and high in Ca on Cal and USS. With both ‘Bartlett’ and ‘d'Anjou’, moderately high correlations were found between leaf and fruit concentrations of K and Mg; positive correlations were high for Ca and S with ‘Bartlett’ and for Zn and B with ‘d'Anjou’. There was a very high negative correlation between leaf and fruit Ca with ‘d'Anjou’.  相似文献   

20.
AIM:To establish and evaluate a hyperbilirubinemia and kernicterus model in neonatal SD rats. METHODS:Three-day-old SD rats were randomly divided to 7 experimental groups by litter and body weight, and were intraperitoneally injected with physiological saline (control group), and 6.25 μg/g (T1), 12.5 μg/g (T2), 25 μg/g (T3), 50 μg/g (T4), 100 μg/g (T5) and 200 μg/g (T6) bilirubin, respectively, twice every day for 3 d. All rats were photographed, weighed and killed 12 h after the last injection. The contents of the stomach were drawn and weighed, and the index was calculated. The liver/body weight ratio was determined, the total and unconjugated bilirubin in the serum and total bilirubin in the brain were calculated, and the contents of ATP and water in the brain were measured. HE and Nissl staining were used to observe the pathological changes. RESULTS:Along with the increase in bilirubin, gradual exacerbation of the general performance of the rats, and yellowish discoloration of the skin and mucous membranes were observed.The degree of the activity gradually reduced, and the weight gain was suppressed. The weight of T6 group showed negative growth, and the 72 h mortality rate was close to 100%. The mortality rate in T4 and T5 groups continued to rise 1 week after injection. Compared with control group, the weight of stomach contents and stomach content index in T3~T5 groups significantly decreased (P<0.01). The liver/body weight ratio in T5 group was significantly higher (P<0.05). The concentrations of serum total and unconjugated bilirubin and brain bilirubin levels in T1~T5 groups were gradually increased, while the brain water content had no difference among groups. The brain ATP content in T1~T5 groups increased at the beginning and reached its peak in T3 group, but compared with control group, that in T4 group and T5 group significantly reduced (P<0.05). HE results showed that, with the increase in bilirubin concentration, the number of the neurons in the cerebral cortex of the rats decreased. In T4 group and T5 group, the neuronal structural disorder, cell swelling, nuclear pyknosis, fragmentation and dissolution, increase in non-homogeneous structure of the material dyed red, and disappearance of nuclear staining were observed. Nissl staining showed that, compared with control group, in T1 group and T2 group, the cortical neurons became smaller, Nissl bodies decreased, and cytoplasmic staining changed little. The cortical neuronal tigroid body color became light gradually, neuron cells become small, and Nissl bodies decreased obviously in T3, T4 and T5 groups. The T4 and T5 rat ce-rebral cortical neurons dissolved or even disappeared. CONCLUSION:Newborn 3-day-old SD rats receiving intraperitoneal injection of bilirubin at doses of 12.5, 25, 50 and 100 μg/g, 2 times a day, can induce hyperbilirubinemia, and 50 and 100 μg/g can cause bilirubin encephalopathy.  相似文献   

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