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    (14(1):15-25)THE EFFECT OF GIBBERELLIN ON PROMOTION OF VEGETABLES GROWTH

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    玆就上列各表結果數字分析之,得初步結論如下: 一、蘿蔔 各處理之蘿蔔不論地上部或地下部之長度,均較對照區大。而重量反較對照區小。就形狀言之,處理者根部之分歧所佔之百分率較對照區低。 二、菠菜 兩次試驗結果,處理區不論濃度高低,對平均每株高度及產量與對照區比較,均有增加。春播者各處理區均有提早抽苔現象,抽苔率亦較對照區高。秋播者收穫時尚未開始抽苔。 三、芫荽 處理區植株高度及抽苔率較對照區增高,其增高程度與奇菌靈之濃度成正比。而植株重量則較對照區低,且與奇菌靈之濃度成反比。 四、胡瓜 處理區第一瓜著生節數較對照區延後1~2節,每瓜重量,長度,橫徑大小等較對照區有增加,惟10 ppm者每瓜重量及長度較對照略有減少。 五、結球白菜 三種處理在株重與球重方面均較對照稍有增加,球徑與球高兩項除10 ppm處理較對照略低外,均略超過對照區,惟相差數不太顯著。 六、甘藍 甘藍因葉片上有臘質,奇菌靈液中雖加用展著劑,亦不易附著,且第三次處理後,開始結球而停止處理,結果數字無明顯差異。 七、花椰菜 處理區植株重量雖較對照略有增加,但食用部份花球之重量反較對照減少。 八、結球萵苣 處理區濃度愈高,結球率愈低,對照區則百分之百結球。不結球者植株形狀亦極不規則。結球者處理區之株重及球重均較對照低,而球之大小(球徑與球高)反較對照區大,故知處理者雖能結球,球之緊密度亦不及對照區。 九、蔓性菜豆 兩次試驗結果,知不同濃度之奇菌靈液對蔓性菜豆之植株有顯著增長,其增長率與濃度高低成正比。植株之分枝數亦隨濃度之昇高而加多。開花早晚,結實率,豆莢大小,重量等反因濃度增大而不及對照區。 十、芹菜 第一次試驗結果,對於株高、株重,各處理均較對照為佳,而以濃度愈高反應愈優,對抽苔之影響並不明顯。 第二次秋播結果,各處理區之株高、株重與對照無明顯差別,而抽苔率則因濃度不同較對照區比例增加。 十一、青梗白菜 經處理者在株高與株重方面,均以濃度愈高者效果愈佳,僅美製奇菌靈 50 ppm 者較差,他種濃度,包括臺南糖試所及美國 Pfizer 廠之奇菌靈的結果相若。 十二、鳳山白菜 第一次試驗結果,以 1 ppm 處理者較高濃度為佳,惟各處理均較對照區為優。第二次試驗結果,株高均按濃度高低比例增加,重量反而相對減少。不及對照區,惟美製奇菌靈 100 ppm 者例外。此外兩種奇菌靈之差異甚微。 1. Radish (Minon Early): The length of either the leaves or the roots of treated radishes is longer than that of the check ones, while the weight is lighter, and the percentage of branches of the treated radish root is smaller. 2. Spinach (Minsterland): According to the results of two tests, no matter the concentration is low or high, the average length per plant and the production of the treated ones are increased. The treated spring seeding ones bolted early, the percentage of bolting is higher than that to the check ones. Fall seeding ones had not begun to bolt till harvest. 3. Coriander (Native variety): The length of stem and the bolting ratio of the treated corianders are higher than those of the check ones. The weight of plants is quite the opposite. 4. Cucumber (Green Skin): The setting location of the first fruit of the treated ones is one or two nodes latter than the check ones. The weight, length and diameter of each cucumber are increased except the 10 ppm ones. 5. Pai-tsai (Nagaoka No. 2): The plant weight and the head weight of the three treatments are increased. The head diameter and the head length are increased except 10 ppm ones, but the difference is not so large. 6. Cabbage (O-S Cross): The wax of cabbage prevents the gibberellin from adhering to the leaf, in spite of the stick used. After the third treatment the cabbages begin to set heads. And the treatment is stopped. The result shows little difference. 7. Cauliflower (Medium maturing): The plant weight of the treated ones is increased but the weight of the flower is lighter than the check ones. 8. Lettuce (Great Lake): The heading ratio is opposite proportional to the concentration while the check ones are all headed The plant shapes of unheaded ones are quite irregular. The plant weight and head weight of the headed lettuce of the treated ones are lighter than those of the check ones, but the head size (head diameter and head length) is larger, so that we know though the treated ones can head, the density of the head is looser. 9. Pole Bean (Kentucky Wonder): According to the results of two tests, we know that gibberellin solution of different concentration increases the plant length of pole bean, and the increase ratio is proportional to the concentration. The number of the plant branching increases in the same way. Leaf size, bloom time, fruit setting ratio, pod size and weight are in a worse condition than those of the check ones because of the increase of concentation. 10. Celery (Yellow Heart): From the first test we know that all the plant height and weight of the treated ones are better than those of the check ones, and denser concentration causes better reaction, but it does not affect bolting much. After the second fall seeding, it shows great difference, and the bolting ratio increases because of different concentration, while compared with that of the check ones. 11. Pak-choi (Ching-keng pai-tsai): The plant height and weight of the treated ones are proportional to the coecentration. Only those treated with 50 ppm of U. S. made gibberellin are worse. Those treated with the other two kinds of gibberellin (one is Taiwan Sugar Research Institute made, the other is American Pfizer made) show same results. 12. Pak-choi (Fengshan pai-tsai): The first test shows the treatments are all better than those of the check ones but the one treated with 1 ppm gibberellin is the best. The second test shows plant height increases as the concentration increases and the weight is on the contraty. All the treated ones are worse than those of the check ones except those treated with 100 ppm of American made gibberellin. Those treated with the other two kinds of gibberellin show little difference

    (12(4):22-27)PRIMARY REPORT ON POT EXPERIMENTS OF VEGETABLES PLANTING IN FUSROUSHAN SOIL

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    根據上述鳳山熱帶園藝試驗分所及臺灣省農業試驗所盆栽試驗結果,可歸納下列幾點結論: 1.福壽山土壤無肥盆栽試驗,鳳山與臺北兩試驗地之結果雖有出入,當初期生育情形比較,則屬一致,均呈萎縮難以生長狀態,而後期臺北試區之結果反較前者為佳;而在鳳山試區前後期均呈萎縮現象,可能臺北試區之四十日油菜耐酸性之能力較強之故。 2.兩地對照之園土無肥盆栽比較,雖生長並不十分理想,但無上述諸種缺點。由此可證明福壽山土壤不適蔬菜生長之主要原因,當在土壤中之酸度太高,而非氣候之關係。 3.福壽山土壤未種植前之pH測定為3.8-4.1,而鳳山土則為6.4,凡pH在4.0左右之高度強酸性土壤,一般作物實無法生育良好。 4.為謀改進此種強酸性土壤,乃進行有肥盆栽試驗,鳳山與臺北兩試驗地,加用適量腐熟堆肥及少量石炭,成效大增,鳳山試區經處理後之土壤產量增加60倍強,臺北試區則為5.5倍強。 Conclusions drawn from the pot experiments carried out in the Fengshan Tropical Horticultural Experiment Station and Taiwan Agricultural Research Institute, are as follows: 1. The growth condition of vegetables cultivated in the soil from Fushoushan both in Fengshan and Taipei in the early stages are mainly the same; the tendency to wilter in the later stages, it was observed those experimented in the Fengshan area remained the same, whereas those in the Taipei area turned out to be a little better. The anti-acid ability of Forty-day Rape used in Taipei may be accounted for the difference. 2. Comparisons made by using soil of the check control area without fertilizer application show, though not very satisfactory, no evidence of the abovesaid defects. It, therefore, proves that the main reason why the soil of Fushoushan is not fit for growing vegetables has nothing to do with climate, but because of the concentration of acidity. 3. pH in the soil of Fushoushan prior to being used in the experiments has been tasted as 3.8-4.1, while that in Fengshan is 6.4. It is generally understood that highly acid-concentrated soil with pH around 4.0 is unfavorable for plant growing. 4. In order to improve the highly acid-concentrated soil pot experiment is used again by adding a suitable amount of rotten compost and some lime in both Fengshan and Taipei. The results are promising. Production improvement of more than 60 times as much as before, and that of the Taipei area shows an improvement of 5.5 times

    (13(4):22-27)EXPERIMENT ON VEGETABLE SEED STORAGE IN VARIOUS KINDS OF CONTAINERS

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    蔬菜種子在自然氣溫下貯藏,很易失去生命,因此關於各種貯藏方法之研究,國內外以住研究頗多,低溫乾燥貯藏,可保持壽命最久,卻因設備不易,為民間一般農戶和零售種子商,難以採用。作者有鑒及此,研究普遍能合實用的方法,於民國四十六年開始,至五十二年止,前後共計六年,獲得生石灰白鐵罐貯藏,可保持壽命數年不失。 1. In this experiment, the seed storage effect of a tin can and a glass desicca-tor with caustic lime or calcium chloride was studied. 2. From the data of this experiment, a tin can with caustic lime and a glass desiccator with calcium chloride showed good results. 3. Although glass desiccator is a common container for the use of seed storage, yet it has some faults. Those are expensive, difficult to convey, and easy to break. In view of these facts, we consider that the tin can is a more practical container to most of the local seed merchants or farmers in Taiwan. 4. When we store a large quantity of seeds in a tin can or a glass desiccator, the same weight of desiccative, such as calcium chloride, caustic lime should be put

    (14(1):39-41)EXPERIMENT ON BREAKING THE DORMANT SEEDS OF BRASSICA JUNCEA COSS. VAR. MEGARRHIZA TSEN ET LEE

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    據上各項處理成績之分析,雲南大頭菜種子之休眠,受環境因素之關係甚大,在產地因收穫後,沒有高溫,故休眠期甚短,收穫後之種子,隨即播種,仍可立即發芽,且發芽率高達99,5%。如收穫後之種子,携至平地,因氣溫突然昇高,和產地相差達10℃以上,可能因環境不適,即進入休眠期,發芽數字極微,此項休眠之打破,應用10℃,15℃低溫處理三天,可促進發芽率達90%以上,應用(Gibberellin)50-200PPM處理,亦可達93%以上之發芽率;其次硫尿(Thiourea)200PPM可促進發芽率68.5%;至於硝酸鉀(Potassium),硫酸錏(Ammonium Thiocyanate),增收素(Bene Plant),愛多收(Atonik)打破休眠之效能不大。 The newly harvested seeds of Brassica juncea var. megarrhiza usually enter into the dormant stage under high temperature. Then we can not expect the germination of such seeds during the dormant stage unless we use artificial methods such as low temperature or chemical treatment to break dormancy. In this experiment, we studied out the effects of low temperature or some chemicals including commercial plant growth substances on the dormant seeds of Brassica juncea var. megarrhiza. All the tested seeds were sown in petri dishes. From the data obtained, we can see that all low temperature treatments (10°C and 15°C) and gibberellin treatments (50-200 p.p.m.) showed excellent results on breaking dormancy of the seeds. The percentage of germination exceeded 91 percent. The effects of other chemicals were low, but 2,000 p.p.m. thiourea treatment was rather satisfactory

    (10(2):16-24)TEST ON THE SEED PRODUCTION OF KINMEN EARLY KOHLRABI

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    1.金門早生球莖甘藍在臺灣北部平地,可以抽苔開花結籽,但在盛花期中,因春雨綿綿不停,土壤排水不良之地,收籽甚難,且形質極差。 2.海拔370M之深坑砲仔崙山地,及海拔470~690M 之陽明山山仔後,竹子湖山地,土質鬚鬆,排水良好,雖春季多雨,仍可結籽優良,其種予形質亦佳。 3.海拔1020M之西寶農場,春季氣候穩定,雨水亦少,為採種之合適環境,不特單株收量豐富,且種子形質亦良。 4.海拔2248M之福壽山農場,春季溫度昇高極緩,延至夏初抽苔開花,至種子結實成熟時期之六、七月間,適為夏季雨期,豪雨連綿,雖可收得種子,不特產量不豐,且處理上困難特多。 5.如原種育成完善,採種圃生產種子,可免選種移值,以節省勞力,而增種子懂量;為謀單位面積收量之增多,在合適之環境採種,可儘量提早栽植。 1. Kinmen Early Kohlrabi is capable of bolting, flowering and seeding in northern plain of Taiwan. However, owing to long-period spring rain, seedings are difficult in ill-draind paddy field, and their characteristics are low. 2. Mountain areas of Shen-kang, Pao-tzu-lun (altitude 370 m.) and Yangmingshan, Shan-tzu-hou, Chu-tzu-hu (altitude 470-660 m.) have well-drainage soil. Seedings are good despite of spring rain, the characteristics of the seeds are also good. 3. Hsi-pao Farm (altitude 1,020 m.) has less rain, and a still spring weather, there-fore, is a suitable place for seed-picking. Not only the single-plant harvests well, but also the characteristics of seeds are good. 4. Fushoushan Farm (altitude 2,248 m.) temperature picks up very slowly in spring, bolting and flowering must be as late as early summer, ripening stage is on June and July when comes upon rain season. Heavy rain makes harvest impossible, also difficulty in disposing the seeds. 5. If the original seed brings up well, seed produced from extension seed farm do not need to be selected and transplanted so as to save labour and stimulate seed production; in order to improve unit yield, it is recommended to plant earlier in suitable picking environment

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

    Variations on the Author

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    “Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship

    Appropriate Similarity Measures for Author Cocitation Analysis

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    We provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis

    Dispelling the Myths Behind First-author Citation Counts

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    We conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more sophisticated methods
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