• 한국초지조사료학회지
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• 제16권3호
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• pp.215-218
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• 1996

This study examines the possibility of early production of forage rape (cv. Akela and Velox) in the period of wintering. Bolting date was Feb. 2 to Feb. 9 in PE film house culture by non-heating and Mar. 3 to Mar. 12 in open field culture. And flowering date was Feb. 24 to Mar. 3 in PE film house culture by non-heating, so it was 30~50 days faster than the open field culture of Apr. 17 to Apr. 22. Fresh matter yield was 8, 356~4, 887 kg/10a in PE film house culture by non-heating, so it was 1, 431~1, 603 kg/10a yield increase than in the open field culture of 7, 253~7, 456 kg/10a Dry matter yield was 953~963 kg/10a in PE film house culture by non-heating, so it was 71~284 kg/10a yield increase than in the open field culture of 669~892 kg/10a.

• Journal of Plant Biology
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• 제26권2호
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• pp.101-117
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• 1983

The phenological phenomena in terms of year day index (YDI) in South Korea were studied. The YDI was proposed here, because the remainer index such as Nuttonson's index is unadequate for the interpretation on the phenological phenomena of early spring season in sourthern coastal area. The YDI was calculated by summing daily mean temperature of the year days (YD) above physical zero degree in centigrade, based on the data of the Monthly Weather Reports from 1967 to 1980 by the Central Meteorological Office. The pattern of YDI increase with the increase of YD was similar to that of the remainder index such as the Nuttonson's index. The some YDI distribution maps were made by Yim and Kira (1975), dividing into 30'$\times$40' meshes, in latitude and longtude, on the topographical map(1 : 500,000) of the Korea Peninsula. According to the year day of different localities flowering dates of Prunus yedoensis and other phenological phenomena in various species delayed about 3.5 day as the increase of 1 degree of latitude, which coincides with the Hopkins bioclimatic law. It was found that the YDI is useful to interprete the phenology of plant and animal species and to select the optimum range of cultivars in South Korea.

• 한국연초학회지
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• 제4권1호
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• pp.37-42
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• 1982

Korean local and introduced varieties were classified by the cluster analysis of correlation and taxonomic distance based on nineteen growth characters. 1. Thirty six varieties can be classified into three groups(I, II, III) by WVGM (weighted variable group method) 2. Major characters for classifying cultivars were days to flowering, number of leaves, leaf length, stem diameter and width of midrib: the five characters seemed to be useful in monothetic classification. 3. Korean varieties were similar to oriental, and japanese varieties to taiwan. 4. WVGM was more accurate and meaningful than classification by WPGM (weighted paired group method) and reticulate diagram of correlation. 5. Characteristics of each group: Group I closely related to many leaves, late of maturity and broad leaf type, Group II related to medium leaves, late of maturity and narrow leaf type, Croup 19 related to few leaves, early of maturity and medium leaf type respectively.

• 한국작물학회지
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• 제48권1호
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• pp.17-19
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• 2003

The purpose of this study was to evaluate the effect of pesticides on insect pest control of Rhophalosiphum nymphaeae, growth characteristies and dry root yield from the cultivated after early maturing rice cropping. All pesticides treated had no effect on the growh period, flowering rate of Alisma plantago. The major pesticides were methomyl-Lf, 24.1 %, imidacloprid-Wp, 10%, carbosulfan-Wp, 20%, and methomyl-Wp, 45%. Dry yield of root were increased largely with imidacloprid-Wp, 10% (10g/20$\ell$), pesticide than the other pesticides and control. All pesticides were had no injury with recommended concentration. On the other hand all pesticides were slightly harmful in the double dosage level for the Alisma plantago.

• 한국농림기상학회:학술대회논문집
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• 한국농림기상학회 2019년도 하계 학술발표초록집
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• pp.311-312
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• 2019

• 한국작물학회:학술대회논문집
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• 한국작물학회 2019년도 춘계학술대회
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• pp.168-168
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• 2019

• 한국지역지리학회지
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• 제15권3호
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• pp.337-350
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• 2009

식물계절 시기의 변화는 지역의 기후변화를 파악하는 데 중요한 지표이며, 지구온난화로 인한 기온상승의 영향이 뚜렷하게 반영된다. 본 연구에서는 식물계절 관측 자료를 이용하여 식물계절 시기의 변화 경향 및 식물계절 시기의 변화와 기온변화의 관계를 분석하였다. 봄철의 발아와 개화시기는 -0.7${\sim}$-2.7일/10년의 변화율로 앞당겨지는 경향인 반면 가을철 단풍절정시기는 3.7${\sim}$4.2일/10년의 변화율로 늦어지는 추세이다. 한반도의 봄철 식물계절 시기는 2월에서 3월 평균기온과 높은 상관관계가 있으며, 2월에서 3월 동안의 평균기온이 $1^{\circ}C$ 상승함에 따라 봄철 식물계절은 3.8일씩 앞당겨지는 경향이다. 가을철 식물계절 시기는 10월 평균기온과 상관관계가 높고 10월 평균기온이 $1^{\circ}C$ 상승함에 따라 3.1일씩 늦어지는 추세이다.

• 원예과학기술지
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• 제30권1호
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• pp.97-100
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• 2012

국립원예특작과학원에서는 2009년 거베라 신품종 'Azalin'을 육성하였다. 'Azalin'은 분홍색 반겹꽃 'Basic'과 'Rosabella'를 교배하여 얻은 실생계통으로부터 2006년부터 2009년까지 4년 동안의 생육특성검정을 거쳐 선발된 절화용 품종이다. 꽃은 녹심의 밝은 분홍색(RHS RP68A)으로, 평균 직경이 10.6cm인 반겹꽃 대륜계통이다. 꽃목 직경은 상부 3.70mm, 하부 5.49mm 정도로 굵었다. 평균 개화소요일수가 88.5일로 대조품종보다 8.7일 빠른 조기개화성 품종이며, 연간절화수량도 55.8본/주로 대조품종보다 7.4본/주 더 많은 다수성 품종이다.

• The Korean Journal of Ecology
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• 제16권4호
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• pp.477-487
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• 1993

온대낙엽수림의 수 종 목본식물에서 생육초기의 기온과 개엽시기와 관계를 규명하기 위하여 남한산성과 지역에서 1991, 1992 및 1993년 대관령 지역에서 1992년, 3월부터 5월까지 겨울눈의 파열 시기, 개엽이 완료된 시기, 개화 및 낙화의 시기를 관찰 조사하고 이것을 기상자료와 관련시켜 분석하였다. 남한산성 지역에서 개엽이 이른 종은 신갈나무, 진달래, 개벚나무, 노린재나무 등으로 4월 초순이었으며, 늦은 종은 굴참나무, 떡갈나무, 다릅나무 등으로 4월 하순이었다. 그리고 가장 빠른종인 진달래 (4월 8일)와 가장 늦은 종인 굴참나무, 다릅나무 및 떡갈나무 (5월 4일)의 차이는 27일 이었다. 두 지여간 동일 수종의 개엽시기를 비교하면, 남한산성의 것은 대관령 지역의 것보다 8~24일 빨랐다. 한편, 두 지역간 개화시기의 차이는 0~22일로 개엽시기의것보다 적었다. 겨울눈의 파열시기는 일적사온량지수(YDI)와 관계가 있지만 개엽이 완료되는 시기나 개화시기를 예측하는 데는 YDI보다 Nuttonoson의 온량지수(Tn)가 더욱 유효한 것으로 나타났다.

• 한국작물학회지
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• 제43권2호
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• pp.71-76
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• 1998

To define the relations between endogenous GA levels and growth and flowering in short-day plant sorghum, growth retardant BX-112 was applied to two sorghum genotypes, wild-type and phytochrome B mutant (phyB-1), which grows faster and flowers earlier than the wild-type. BX-112 and $GA_3$ were applied as a soil drench, and plant height, culm length, and date to floral initiation were investigated. Endogenous GAs contents were measured with GC-MS-SIM. BX-112 treatments inhibited shoot growth in both genotypes and drastically reduced $GA_1$ and $GA_8$ levels. With increasing BX-112 concentrations, $GA_1$ concentrations declined linearly, but caused the accumulation of intermediates from $GA_12$ to $GA_20$. This result implies that $GA_1$ is the major active endogenous GA in shoot elongation in a short day plant sorghum. The inhibition of plant growth in both of wild type and phyB-1 by BX-112 was very similar, while BX-112 effects on floral initiation in two types of plants differed significantly. Floral initiation of phyB-1 was not affected by BX-1l2, but that of wild-type was delayed as BX-1l2 concentration increased. Because BX-112 treatment causes accumulation of biosynthetic intermediates between synthetic pathway from $GA_12$ to $GA_20$ and because phyB-1 is altered in GA metabolism in this same region of the early C13-hydroxylation pathway, BX-112 may fail to block flowering of phyB-1.