Search Result of "no keyword"

About 80 results
Img

ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Stove Used in Dry Storage)

ผู้เขียน:ImgLarb Rubsiri

สื่อสิ่งพิมพ์:pdf

Abstract

This research has been conducted to cooperate with the dry storage that has been presened previously. Electrical heaters were used in the previous research (Dry Storage) which is unsuitable for rural areas and rather expensive. The main purpose of this research is aimed at adaptation of wastes from industries and agricultural products to be used as fuels in appropriate stoves. Four types of stoves were disigned and two of them selected for this research. The 4 stoves give almost the same result. The second and the third types are rather complicate in construction and costly; heat loss is also high. Stove no. 1 and 2 have been selected for this research. The test results show that liverated heat from these two stoves is much greater than required. In some tests the steel grids even melted.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 019, Issue 2, May 85 - Aug 85, Page 134 - 144 |  PDF |  Page 

Img

ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Effect of CO2 and Termperature on Postharvest Quality Changes of Broccoli)

ผู้เขียน:ImgS. Phuchai, ImgS. Ketsa, ImgKosiyachinda

สื่อสิ่งพิมพ์:pdf

Abstract

Chiang Mai-grown broccoli was bought and shipped to Bangkok by truck within 30 hours. Broccoli was stored at 3 temperatures; room temperature (31 C) 1 and 4C under the following conditions: plastic basket, unsealed plastic bag and sealed plastic bag without and with adding 10% Co2. Storage life of broccoli held in sealed plastic bags with initial 10% Co2 at 1 and 4C could be extended up to 28 days and broccoli still remained green and fresh like newly harvested vegetable and it could be stored further. It is therefore strongly recommended that broccoli be stored at 4-5C in plastic bags with initial 10% CO2

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 019, Issue 2, May 85 - Aug 85, Page 145 - 150 |  PDF |  Page 

Img

ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Soybean in Cropping System in Central Thailand II. Various Intercropping Combinations of Corn and Soybean)

ผู้เขียน:Imgดร.อภิพรรณ พุกภักดี, ศาสตราจารย์, ImgVeerachai Sriwatanapongse

สื่อสิ่งพิมพ์:pdf

Abstract

The experiment was conducted at Kampangsaen Campus, Kasetsart University to investigate the possibility of growing sweet corn (variety Hawaiian sugar supersweet DMR) and soybean (variety S.J.4) in the intercropping. Three intercrop combinations of 75% corn+25% soybean, 50% corn+50% soybean, and 25% corn+75% soybean were used in the experiment in comparison with corn and soybean monocultures. Soybean was harvested for seed while corn was harvested for greed cob.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 019, Issue 2, May 85 - Aug 85, Page 151 - 154 |  PDF |  Page 

Img

ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Impact of Land Use on Soil Nutrient at Doi Pui and Tung Jaw, Chiangmai)

ผู้เขียน:Imgนายนิวัติ เรืองพานิช, ศาสตราจารย์, ImgVanchai Viranant

สื่อสิ่งพิมพ์:pdf

Abstract

The change of land use practices from the hill evergreen forest to other land use types deteriorated the physical properties of soil. The bulk density of the top soil, 0 - 50 cm in depths was increased and soil porosity was decreased especially in the shifting cultivation and agroculture areas, but there was no difference at the depth of 50 - 100 cm in all types of land use. The amount of organic matter and sulfer in the soil was decreased in all types of land use except in the agroculture area that the amount of sulfur was increased due to the use of chemical fertilizers. In all types of land use, the organic matter content decreased with increasing soil depth, but in the contrary, the amount of sulfur increased with increasing soil depth. The pH was slightly increased in all depths and types of land use. The amount of phosphorus, potassium and magnesium was increased and mostly accumulated at the top soil and decreased with increasing soil depth. However, the amount of phosphorus was increased in agroculture and forest plantation areas and decreased in areas of shifting cultivation and enrichment planting. The potassium and magnesium content were highest in forest plantation areas and lowest in the hill evergreen forest, while the amount of calcium was highest in agroculture area and lowest in the hill evergreen forest. All of the phenomena mentioned above may be due to the influence of fire and chemical treatments. It was revealed that the change of the hill evergreen forest to other land use practices would impact the balance of nutrients in the system as well as the amount and rate of nutrient cycling. Most of the nutrients were moved and accumulated in the soil instead of storing in the form of plant biomass, Therefore, if the land were not properly used, the nutrients could be easily leached and lost from the system.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 019, Issue 2, May 85 - Aug 85, Page 155 - 166 |  PDF |  Page 

Img

ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Report of Contagious Ecthyma Disease in Goat and Sheep Found in Bangkok)

ผู้เขียน:ImgPrapahd Neramitmansook, Imgนายสมชัย พงศ์จรรยากุล, รองศาสตราจารย์, ImgYan Sukwong, ImgNati Ninophakoon, ImgAhmed H. Dardiri

สื่อสิ่งพิมพ์:pdf

Abstract

In November 1981, a contagious disease was reported in a herd of 25 goats and 22 sheep which were raised together in Bangkapi district, Bangkok. The morbidity rate of goat and sheep was 28% and 68% respectively. With red vesicles on the lips and gums, the sick animals had difficulties in eating, The diagnosis of the disease was based on history, clinical signs, lesions, histopathology, an ability to induce disease in sheep by scarification, the demonstration of parapox virus particles by electron microscope and the result of positive complement fixation test to known contagious exthyma antigen. It was then concluded the these animals were infected by contagious ecthyma disease.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 019, Issue 2, May 85 - Aug 85, Page 119 - 126 |  PDF |  Page 

Img

ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Drip Irrigation for Small -Scale Tomato Production in the Tropics)

ผู้เขียน:ImgR. J Holmer, ImgW. H. Schnitzler

สื่อสิ่งพิมพ์:pdf

Abstract

no abstract

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 032, Issue 5, Jan 98 - Dec 98, Page 56 - 60 |  PDF |  Page 

Img

ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Harvesting Indices of 'Cardinal' Grape)

ผู้เขียน:ImgWalaiporn Siriwachirapap, ImgPeeradet Tong-umpai, Imgดร.สายชล เกตุษา, ศาสตราจารย์

สื่อสิ่งพิมพ์:pdf

Abstract

Harvesting indices of 'Cardinal' grape were determined at 47,52,57,62 and 67 days after 50 percent bloom stage. The results showed that the nurnbcr of days after 50 percent bloom stage, color of berries and seeds and chemical components of berries were able to be used as harvesting indices of 'Cardinal' grape. Berries were harvested at 57 to 62 days after 50 percent bloom stage gave the best eating quality which had 40 to 50 percent of berries with reddish purple color, 14.6 to 15.5 percent total soluble solids, 0.51 to 0.63 percent acidity and 23.3 to 30.8:l total soluble so1ids:acid ratio.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 019, Issue 3, Sep 85 - Dec 85, Page 167 - 172 |  PDF |  Page 

Img

ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Effect of Tillage Systems and Methods of Fertilizer Application on Corn Production )

ผู้เขียน:Imgนายสุพจน์ เฟื่องฟูพงศ์, รองศาสตราจารย์, ImgSudarath Sakhunkhu

สื่อสิ่งพิมพ์:pdf

Abstract

Four tillage practices and five methods of application of 16 - 20 - 0 fertilizer at the rate of 75 kilograms per rai including broadcast and different methods of banding were investigated at the National Corn and Sorghum Research Center during August and December 1982. The experimental site had no nutsedge and Burmese grass problem. The result indicated that zero tillage caused corn plants to flower earlier than conventional tillage practice did. More plants per unit land area were recorded for a conventional tillage system in comparison to minimum and zero tillages. However, plant height and grain yield were not different among four tillage systems. Methods of fertilizer application failed to show a significant difference on all characters being recorded.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 019, Issue 3, Sep 85 - Dec 85, Page 173 - 179 |  PDF |  Page 

Img

ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : The Role of Epidermis in Wound Ethylene Production by Fruit Pericarp Tissue of Rin Mutant Tomato (Lycopersicon esculentum Mill.) )

ผู้เขียน:Imgดร.สายชล เกตุษา, ศาสตราจารย์

สื่อสิ่งพิมพ์:pdf

Abstract

Wound-induced ethylene production by fruit pericarp tissue of rin mutant tomato was studied in relation to role of the epidermis. Disks with intact epidermis produced more wound ethylene than disks without epidermis. Disks with intact epidermis were stimulated to produce more ethylene than disks without epidermis in response to 1 - aminocycopropane - 1 - carboxylic acid (ACC) application. This suggests that the compact cells close to the epidermis may at least be the location of enzyme(s) or other cofactor(s) required for the conversion of ACC to ethylene

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 019, Issue 1, Jan 85 - Apr 85, Page 59 - 64 |  PDF |  Page 

Img

ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Peri-Urban Vegetable Production, Consumption and Marketing in Cagayan de Oro, Philippines)

ผู้เขียน:ImgG.E. Potutan, ImgL. G. Janubas, ImgJ. Marnado, ImgJ. Holmer, ImgW. H. Schnitzler

สื่อสิ่งพิมพ์:pdf

Abstract

no abstract

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 032, Issue 5, Jan 98 - Dec 98, Page 61 - 66 |  PDF |  Page 

Img

ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Effect of Stem Intact on Sugar Content of Harvested Thai Supersweet Composite # 1 DMR Sweet Corn )

ผู้เขียน:ImgAnchalee Wongveecakhan, Imgดร.สายชล เกตุษา, ศาสตราจารย์

สื่อสิ่งพิมพ์:pdf

Abstract

Thai Supersweet Composite # 1 DMR sweet corns were harvested at milk stage with and without stem intact and stored at room temperature (25"C), 1 ", 5" and 10?C respectively. It was found that sweet corns with stem intact, stored at all tested temperatures had tendency to lose soluble solids and sucrose less than those without stem intact. Sweet corns stored at 1" and 5?C for 4 - 6 days had nearly the same levels of soluble solids and sucrose as freshly harvested sweet corns especially those with stem intact and stored at 1?C. Sweet corns with stem intact and stored at 10?C for 4 - 8 days had sucrose content much more than those without stem intact, All of sweet corns with stem intact lost moisture content from the kernels much more than those without stem intact and caused the fresh kernels wrinkle.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 019, Issue 1, Jan 85 - Apr 85, Page 1 - 7 |  PDF |  Page 

Img

ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : I. Dacus dorsalis Hendel bba 3 Dacus zonatus (Saunders)' Toxicity Tests of Some Insecticides against Fruit Flies I. Dacus dorsalis Hendel and Dacus zonatus (Saunders) )

ผู้เขียน:Imgนายสุธรรม อารีกุล, ศาสตราจารย์

สื่อสิ่งพิมพ์:pdf

Abstract

Comparative toxicity tests of ten insecticides were made against Dacus zonutus (Saunders) and Dacus dorsalis Hendel (Tephritidae, Diptera). In the feeding method, it reveals that the susceptibility of both species to trichlorfon and malathion was increased as the age of adult flies increased from 1,7,14,21 and 24 days respectively. Results from this study also showed that D. zonatus was 2.5 and 1.5 times respectively higher resistant to trichlorfon and malathion than D. dorsalis. The species also demonstrated higher tolerance to the following insecticides when they were tested at two days old age through the following methods: isoprocarb, methyl parathion, and BHC by vaccuum dusting; DDT, trichlorfon, carbaryl, and malathion by toxicity deposit; and malathion by topical application. However, the results were reversed when the topical application was employed in testing with trichlorfon, carbaryl, methomyl, dimethoate, and cypermethyl. The insects showed no significant difference in their susceptibility when trichlorfon, malathion, and cabaryl were injected directly into their blood stream. Malathion and trichlorfon are normally recommended for bait sprays in combination with an attractant such as the yeast protein hydrolysate. Since D. zonatus is comparatively higher resistant to both insecticides, it may need higher dosages for the bait sprays in the field in order to obtain satisfactory results of simultaneous controls of both species.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 019, Issue 1, Jan 85 - Apr 85, Page 14 - 19 |  PDF |  Page 

Img

ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : The Toxicity and Distribution of Cadmium in Fertile Chicken Eggs)

ผู้เขียน:Imgดร.จงรักษ์ แก้วประสิทธิ์, รองศาสตราจารย์, Imgดร.จารนัย พณิชยกุล, ผู้ช่วยศาสตราจารย์, Imgนางอมรา คัมภิรานนท์, รองศาสตราจารย์

สื่อสิ่งพิมพ์:pdf

Abstract

Twenty one days after injecting 0.1 ml solution containing 0.010, 0.015, 0.020, 0.025, 0.030, 0.035, 0.040, 0.045 and 0.050 mg cadmium to fertile chicken eggs, it was found that injection of 0.030 mg inhibited hatching of the eggs. With regards to the distribution of 0.030 mg cadmium, five days after injection into fertile chicken eggs, 94% was in the embryo and 4% in egg yolk plus albumin. However, the amount of cadmium in egg shell was not detectable. Determination of cadmium in each sample was done by atomic absorption spectrophotometry.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 019, Issue 3, Sep 85 - Dec 85, Page 221 - 225 |  PDF |  Page 

Img

ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Studies on Broccoli Production in Chonburi Province, Thailand)

ผู้เขียน:ImgP. Pornsuriya, ImgS. Teeraskulchon

สื่อสิ่งพิมพ์:pdf

Abstract

Four experiments were conducted in cool seasons during the last three years (1995-1997) to find out various cultural methods to increase yield and yield quality of broccoli (Brassica oleracea var. Plenck) in the lowland areas of the Faculty of Agriculture at Bangpra, Rajamangala Institute of Technology, Chonburi Province, eastern Thailand. The research projects were aimed to improve broccoli yield and quality, and also to extend to farmers in eastern peri-urban region. The results of various experiments concerning varieties, planting periods, spacing, lateral shoot pinching. NAA spraying and fertilizers application were as follows. There were no significant differences on yield and related characters among the varieties (hybrid). The expansion of planting period to late cool and early summer season (Jan-Mar) could be done without declination of yield, compared with that in the cool season, but planting in the late rainy season (Sep-Nov) gave the lowest yield. The appropriate spacing was 40 ? 60 cm (plant x row), which gave the highest yield and good quality. Pinching by leaving one lateral shoot with main stem did not affect yield, compared with all-pinching, however, flowerhead from the lateral shoot was too small for marketing. NAA application at 100, 200 and 300 ppm at the age of 2 and 3 weeks (after transplanting) of broccoli did not increase yield and head size, however, NAA application gave lower numbers and weight of lateral shoots than control (0 ppm). The different compost and chemical fertilizers levels produced significantly different effects on the yield. The highest yield of 17.8 t/ha was obtained from the plot applied with compost as basal application and at 20 days after transplanting, urea at 7 and 30 days after transplanting and 15-15-15 (NP- K) as basal application and at 20 days after transplanting. The total weight of compost. urea and 15-15- 15, which applied in the highest yield plot were 33.3 t/ha, 133.3 kg/ha and 444.4 kg/ha, respectively.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 032, Issue 5, Jan 98 - Dec 98, Page 81 - 85 |  PDF |  Page 

Img

ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Quaternary Ammonium Compounds Chemical Control of Bacteria in Sugar Cane Juice by Using Quaternary Ammonium Compounds )

ผู้เขียน:ImgBoonsong Saeng-on, Imgนายวิวัฒน์ แดงสุภา, อาจารย์

สื่อสิ่งพิมพ์:pdf

Abstract

In the 1982 - 1983 season, it was found that the sugar factories used 4 kinds of chemicals to control microorganism in sugarcane juice. They have the trade names of Maquat-1416, Hexemine X-100, CMA and Lutensit-KIC. All these chemicals belong to the group of quaternary ammonium compound (QAC) and have been approximately used at the concentration of 5 ppm. The effect of 3 quaternary ammonium compounds, Maquat-1416, CMA and Hexemine X-100 were tested. All these compounds were inhibitory at minimum concentration of 10 ppm to the following bacteria : Leuconostoc mesenteroides, Streptococcus sp., Lacto bacillus cello biosus, Bacillus sub tilis, Lactobacillus Fermentum, Erwinia herbicola and Proteus sp. Pseudomonas sp. and Klebsiella sp. were resistant to these chemicals. A study on the bactericidal property of these compounds at concentration of 10 ppm for 20 minutes was also undertaken. It was found that CMA could only inhibit the bacteria but not kill them, while Maquat-1416 could kill many bacterial species. Hexemine X-100 could inhibit most of the test bacteria and could kill just a few. The study indicated that the increase in the concentration of QAC to 10 ppm could control the bacteria in sugarcane juice and could reduce the rate of detrimental sucrose effectively.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 019, Issue 3, Sep 85 - Dec 85, Page 213 - 220 |  PDF |  Page 

Img

ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Degree of Insect Damages on Four Specles of Indian Mahogany)

ผู้เขียน:ImgSurachai Choldumrongkul, ImgChavewan Hutacharern

สื่อสิ่งพิมพ์:pdf

Abstract

Insect pests are major problems that hinder the growth and the development of the Indian Mahogany. Selecting for resistant species is one way to tackle the problems. Survey of damages caused by the shoot borer, Hypsipyla robusta Moore, and the root collar borer, Pagiophloeus longiclavis Marshall, was done in Toona ciliata M. J. Roem, Toona sureni (Blume) Merrill, Cedrela odorata L. and Cedrela augustifolia Sesse & Moc. It was found that H. robusta caused higher damage to T. ciliata than C. odorata On the other hand P. longiclavis showed more infestation on C. odorata than 5? ciliata. Damages from both insects in T. sureni and C. augustifolia were recorded but have not yet compared to other species due to t,he low survival percentage of the seedling resulted in small number of trees remaining.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 019, Issue 3, Sep 85 - Dec 85, Page 257 - 260 |  PDF |  Page 

Img

ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Pulsing Effect of Sucrose and Sodium Benzoate on Senescence of 'Christian Dior' Cut Roses)

ผู้เขียน:Imgดร.สายชล เกตุษา, ศาสตราจารย์, ImgRochana Sribunmal

สื่อสิ่งพิมพ์:pdf

Abstract

'Christian Dior' cut roses at bud stage were pulsed in solutions containing sucrose and sodium benzoate alone or together for 12 or 24 hours before transferring to rain water. The pH of pulsing solutions was adjusted to 4.0 by citric acid. The solution containing 5% sucrose together with 300 ppm sodium benzoate and pulsed for 24 hours gave maximum vase life of cut roses up to 5.9 days with the least bent nect of 18.0% and slight blueing. Cut roses in the control had vase life only 2.1 days with the most bent neck of 69.0% and severe blueing.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 019, Issue 3, Sep 85 - Dec 85, Page 261 - 264 |  PDF |  Page 

Img

ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Clay Minerals and Iron Oxides of Selected Red and Yellow Soils in Northeast Plateau and Southeast Coast, Thailand)

ผู้เขียน:Imgนางสาวอัญชลี สุทธิประการ, ศาสตราจารย์, Imgนายเอิบ เขียวรื่นรมณ์, ศาสตราจารย์เกียรติคุณ, ImgPramualpong Sindhusen, ImgKannica yoothong

สื่อสิ่งพิมพ์:pdf

Abstract

A study on clay minerals and iron oxides was conducted on five selected red and yellow soils in the Northeast Plateau and the Southeast Coast mailand, using x-ray diffraction analysis and differential thermal analysis methods. The results reveal that the red and yellow soils have kaolinite as the dominant clay mineral. Vermiculite, smectite and illite are also present in minor quantities in the soils. The iron oxide content of these soils varies according to their parent materials. The iron oxide minerals found include hematite, goethite and magnetite. The clay minerals and iron oxides in these soils account for their poor fertility status and care should be taken on soil system for fertilizer application. The soils belong to Ultisols and Oxisols and can be correlated well with established soil series in Thailand.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 019, Issue 3, Sep 85 - Dec 85, Page 265 - 271 |  PDF |  Page 

Img

ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Effect of Seed Maturity on Field Corn Seed Quality Supot Faungfupong, Pornpreeda Wanapichit and Porn Rungchang )

ผู้เขียน:Imgนายสุพจน์ เฟื่องฟูพงศ์, รองศาสตราจารย์, ImgPornpreeda Wanapichit, Imgนายพร รุ่งแจ้ง, รองศาสตราจารย์

สื่อสิ่งพิมพ์:pdf

Abstract

Effect of seed maturity on field corn seed quality was studied at the National Corn and Sorghum Research Center, Nakhonrajasima province during July to November of 1979 and 1980. In order to obtain cprn seeds of thirteen different maturities, Suwan 1 variety was planted in 1979. At harvest, seed moisture content and a 100 seeds-weight were recorded. These seeds were dried to approximately 12% moisture content and stored in cold storage for the 1980 evaluation. As seed developmental stage proceeded, its moisture content decreased gradually to a value of 31.1% at physiological maturity stage. Seed weight, on the contrary, increased with seed developmental stage and reached the maximum during physiological maturity stage. The 1980 trial showed that germination and seedling vigor were increased with increasing maturity of seed being used. A satisfactory level of seed germination and seedling vigor was observed only when seed Age of 33 days after silking or older were used.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 019, Issue 3, Sep 85 - Dec 85, Page 180 - 187 |  PDF |  Page 

Img

ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Effect of Some Chemicals on Pseudomonas sp. Causing Bacterial Rot Disease of Orchids )

ผู้เขียน:Imgดร.พัฒนา ศรีฟ้า ฮุนเนอร์, ศาสตราจารย์, ImgPravit Tongchairaweewat

สื่อสิ่งพิมพ์:pdf

Abstract

Nine chemicals, including five antibiotics: Agrimycin, Aureomycin, Septrin-S, Streptomycin, and Terramycin; and four fungicides : Coppercide, Copper sandoz, Cuprosan super D, and Trimitox forte were tested to evaluate inhibition effect on the growth of Pseudomonas sp., the causal bacterial rot disease of orchids, by Petridish zonal inhibition. The result indicated Septrin-S was the most effective. The bacteria was also inhibited by Aureomycin, Streptomycin, Trimitox forte and Terramycin, respectively. Aureomycin at 500 ppm and Terramycin at 1,000 ppm provided a good protection of bacterial infection in the green house.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 019, Issue 3, Sep 85 - Dec 85, Page 188 - 194 |  PDF |  Page 

1234