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친환경 과원의 단감 '부유'(Diospyros kaki 'Fuyu') 과실의 동상해에 미치는 나무의 식재위치와 착과방향의 영향
강성구,안광환,최성태,도경란,조광식,Kang, Sung-Ku,Ahn, Kwang-Hwan,Choi, Seong-Tae,Do, Kyung-Ran,Cho, Kwang-Sik 한국유기농업학회 2014 韓國有機農業學會誌 Vol.22 No.4
본 연구는 친환경단감과원의 부유(Diospyros kaki 'Fuyu') 과실을 대상으로 창원과 창녕지역에서 발생한 저온내습(2012년 11월 2일)으로 인한 가을 동상해발생과 식재위치(표고) 및 나무 내에서의 착과 방향의 관계를 알아보고자 수행되었다. 창녕지역 과원의 과중과 과실횡경은 착과방향에 의해 강하게 영향을 받았으며(p<0.01), 과실종경과 동상해발생은 식재위치(p<0.01)와 깊은 관계가 있는 것으로 나타났다. 과실경도와 과실종경은 각각 착과방향과 식재위치의 영향을 받는 것으로 밝혀졌다(p<0.05). 특히 동상해는 과원 하단에 식재된 나무의 과실(15.2%)과 잎(약 90%)에서 심하게 나타나 동상해의 주요 요인이 과원의 지형적 특징인 것으로 나타났다. 과실 동상해를 입은 과실은 과피에 수침상 반점이나 흔적이 발생했다. 한편 창원지역의 과원에서는 과실횡경이 식재위치의 영향을 받은 것(p<0.05)을 제외하고 식재위치와 착과방향이 과실의 생육 및 동상해발생에 영향을 주지 않았다. We have analyzed the effect of planting site (elevation) and direction of fruiting on the frost damage (tolerance to transparent skin and blemishes) of persimmon (Diospyros kaki Thunb) 'Fuyu' fruit subjected to the early fall frost (November 2, 2012) in environment-friendly orchards of Changnyeong and Changwon (Gyeongsangnam-do Korea). In Changnyeong, the direction of fruiting showed a significant effect on the fruit weight and the fruit width (p<0.01), and the fruit firmness (p<0.05) while the planting site (elevation) did a highly significant effect on the fruit width and the frost damage (p<0.01), and fruit length (p<0.05). In particular, severe frost damage of fruit (15.2%) and leaves (about 90%) was observed in the plants located in the low elevation area of orchard. The damaged fruit had an transparent skin color and/or blemishes. In Changwon, there was no effect of the planting site and the direction of fruiting on the frost damage, and the fruit characteristics except the fruit width having been related to the planting site (p<0.05). So, the main effects for the fruit frost damage was a terrain factor around the orchards.
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재배 시 brushing 처리에 따른 어린잎 채소 다채의 생육과 수확 후 선도 차이
이정수 ( Jung Soo Lee ),도경란 ( Kyung Ran Do ) 한국식품저장유통학회 ( 구 한국농산물저장유통학회 ) 2012 한국식품저장유통학회지 Vol.19 No.1
An experiment was conducted to find out the effect of brushing treatment during cultivation on the postharvest quality of the baby leaf vegetable, specifically tah tasai Chinese cabbage (Brassica campestris var. narinosa). The effect of mechanical brushing during cultivation on the postharvest quality was determined in terms of the quality changes in weight loss, gas partial pressure, leaf color, and appearance during storage using a 30-㎛-thick polypropylene film at 16℃. The brushing treatment included brushing with A4 paper back and forth 50 times a day. The study revealed that the growths on the brushing-treated plant group were less than those on the control group. The structure of the leaf tissue of the brushing-treated plant also tended to be less compact than that of the non-treated plant. The brushing treatment resulted in less growth and denser plant tissues as well as in differences in the gas O2 consumption and CO2 accumulation after packaging. For the gas partial pressure, the O2 consumption and CO2 accumulation of the brushing-treated plant tended to be less than those of the non-treated plant. There were no differences, however, between the brushing-treated plant and control groups in the SPAD value and appearance. The study results also suggested that after packaging, the effects of the brushing treatment during cultivation on the quality of the tah tasai Chinese cabbage baby leaf vegetable was not significant. As such, it is recommended that effective post-harvest methods of improving the product quality of the baby leaf vegetable be further investigated.
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