Search Result of "P. Tong Umpai"

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Researcher

นาย พีรเดช ทองอำไพ, รองศาสตราจารย์

ที่ทำงาน:ภาควิชาพืชสวน คณะเกษตร บางเขน

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ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Harvesting Indices of Strawberries in Thailand)

ผู้เขียน:ImgK. Vanichkul, ImgS. Kosiyachinda, ImgM. Kosittrakul, ImgS. Ketsa, ImgV. Vangnai, ImgP. Tong Umpai

สื่อสิ่งพิมพ์:pdf

Abstract

Tioga strawberries of 4 different-colored stages were harvested from Intonon area in the cooler month of December. 1982. Their quality criteria were determined right after sorting at the lntanon Station. The remaining berries were air-shipped to lab in Bangkok for study at daily interval. Another batch of different stages of berries similar to the December crop was studied in the warmer month of March, 1983. It was found that after harvest all strawberries developed color rapidly. those of 21 -40% red color when harvested deloped color to an acceptable condition of over 90%) color within 2 days. The March crop had a slightly faster rate of color development, it is faster than the December crop by approximately half a day. More advanced stage of strawberries. the 61-80% colerl in the December harvest had higher SS than others by only 1 .O'%. Those of March had slightly lower SS than the December by about 0.5% The younger stage of 0-20% color strawberries tended to have higher acid content than other stages in the cooler month crop. Their difference in this respect between the two months was less than 0.0:3% in favor of the hotter month. The SS/ TA ratios of the cooler month strawberries are higher than those of the warmer month by lo;. It is suggested along the support of organoleptic evaluation that strawberries of above 41% color of either months possessed acceptable eating quality right after harvest. The younger stage of 21-40% color needed 3 days after harvest to attain such quality. Strawberries are firmer in the younger stages. They also had greater firmness in the cool month crop. Four days after harvest fruit firmness of the cool and hot month crops was different by 0.55 to 0.86 kg/cm2. Weight losses increased in relation with time. On the third day after harvest. the losses amounted to 6% for the December crop. while that for the warmer month was 9%. The apparent losses were fruit losses due to mechanical and biological injuries. The former factor played a bigger role due to human problems which could be alleviated with "Tender Loving Care" practices.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 018, Issue 2, May 84 - Aug 84, Page 92 - 98 |  PDF |  Page 

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ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

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

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

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 

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Researcher

ดร. รวี เสรฐภักดี, รองศาสตราจารย์

ที่ทำงาน:ภาควิชาพืชสวน คณะเกษตร กำแพงแสน

สาขาที่สนใจ:ไม้ผลและสรีรวิทยา

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ดร. จริงแท้ ศิริพานิช, ศาสตราจารย์

ที่ทำงาน:ศูนย์วิจัยและพัฒนาพืชผักเขตร้อน (ภาควิชาพืชสวน) คณะเกษตร กำแพงแสน

สาขาที่สนใจ:สรีรวิทยาและเทคโนโลยีหลังการเก็บเกี่ยวและผลไม้ , สรีรวิทยาพืชสวน

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