농림기술관리센터 Agricultural Research & Development Promotion Center
등록번호
TRKO201100001436
DB 구축일자
2013-04-18
초록▼
시설포도의 환경제어 시스템 및 년 2회 생산방법 개발을 목표로 시도된 본 연구의 1차년도에서는 시설재배용 하우스내에 퍼스널 컴퓨터를 이용한 기온, 상대습도, 토양수분, 지온, CO2 농도 등의 환경요소를 연속적으로 계측할 수 있는 계측시스템을 보고한 바 있다. 아울러 근역제한재배 베드에 거봉 1년생 묘목을 재식한 후 수체의 안전 생육 및 고품질의 포도수확을 위한 수체의 생장상태 즉, 신초의 생장, 전정, 맹아 촉진제 처리 및 효과, 결실 등에 대해서 보고하였다. 1차년도에 나타난 연구 결과를 토대로 하여 수행된 2차년도의 연구개발
시설포도의 환경제어 시스템 및 년 2회 생산방법 개발을 목표로 시도된 본 연구의 1차년도에서는 시설재배용 하우스내에 퍼스널 컴퓨터를 이용한 기온, 상대습도, 토양수분, 지온, CO2 농도 등의 환경요소를 연속적으로 계측할 수 있는 계측시스템을 보고한 바 있다. 아울러 근역제한재배 베드에 거봉 1년생 묘목을 재식한 후 수체의 안전 생육 및 고품질의 포도수확을 위한 수체의 생장상태 즉, 신초의 생장, 전정, 맹아 촉진제 처리 및 효과, 결실 등에 대해서 보고하였다. 1차년도에 나타난 연구 결과를 토대로 하여 수행된 2차년도의 연구개발 내용 및 범위를 제시하면 다음과 같다. 가. 1년차 2차결실 과실의 품질향상을 위한 근권부 환경 조절 시스템을 설치하였다. (1) 근권부 가온에 의한 지온 변화 특성 분석 (2) 자동관수 시스템의 관수특성 분석 나. 년2회 생산과실의 품질향상을 위한 처리효과 및 수체의 생육특성을 분석하였다. (1) 1년차 2기작 결실수의 생장 및 과실 특성 분석 (2) 년2회 결실수의 수체 영양상태 분석 (3) 2년차 2회생산을 위한 휴면타파, 발아 촉진 및 수체의 생육특성 분석 (4) 秋冬기간의 일장처리를 위한 인공광의 보광특성 및 CO2 시용 효과 분석
Abstract▼
To produce the high quality of grapes in two cropping sys tem within a year, it is very important to maintain the optimum soil temperature and water potential near the root zone of vine tree. Experiment was performed in a plastic greenhouse of grapes growing on restricted root zone system to control
To produce the high quality of grapes in two cropping sys tem within a year, it is very important to maintain the optimum soil temperature and water potential near the root zone of vine tree. Experiment was performed in a plastic greenhouse of grapes growing on restricted root zone system to control the environmental factors in root zone effectively. In order to establish the two cropping sys tem within a year, the sprouting of dormant buds in summer and normal growth of shoot and berries during winter should be induced. For inducing this physiological process, various treatment in the environmental controlled plastic greenhouse have been performed. The results obtained in this study are summarized as follows: 1. Maximum diurnal air temperature inside plastic greenhous e ranged between 27.5 and 34.7℃. And the nocturnal air temperature approximately maintained at 18℃ in winter season. 2. Although water potential at the depth of 15 cm maintained at pF 2.2∼2.3, water potential just after irrigation sharply decreased to pF 1.3∼1.5. Afterwards water potential at the same depth showed a slight increase. It is suggested that the water potential at the depth of 15 cm should be used as the standard for the determination of irrigation set point. 3. Considering the meas ured data for s tem diameter, shoot elongation, and mean leaf area of vine trees, it was believed that vine trees was alittle spindly and succulent. This tendency might be ascribed to the ill drainage in restricted root zone system. 4. Although fluores cent lamps were us ed to increase the light intens ity at the leaves surface of vine trees as supplemental lighting source, the quality of fruits was not increased. In order to improve the quality of fruits, it may be effective to use the light source with high intensity. 5. On the bas is of the mineral nutrient content in the second fruiting vines, the growth of the vines was normal. In the seasonal change of mineral content, the leaves sampled on January 15 showed higher content than that sampled on March 14. However, this phenomenon is normal, because the mineral content usually decreased with advancing leaf senescence. 6. After harvesting the fruits from the second fruiting vines in the first year, the normal spring s prouting was performed by treatment of dormance breaking chemical and high humidity(RH 80%) maintenance with spraying water. 7. The first cropping vines in the second year s howed normal growth, fruiting and fruit development. 8. Slightly lower sugar and higher acid content in the summer fruits (first fruiting in two cropping system) was recorded, but it was es timated that the characteris tics of fruit might be derived from higher water content of the bed. 9. For second fruiting within a year, calcium cyanamide 10% solution was used as dormant breaking chemical and water on the buds was sprayed for abs orbing water in buds, so the bud s prouting rates was as high as 92% in 17th day after treatment, but sprouting time was uneven. 10. Calcium cyanamide was the most effective on dormant breaking and growth of young shoots in the second fruiting grape vines within a year. 11. Shoot length of vine trees at the plot which metalhalide lamps, high-pressure sodium lamps, and fluores cent lamps were used as supplemental lighting was 5∼16 cm higher than that at non- lighting plot.
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