• 한국응용곤충학회지
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• 제61권3호
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• pp.435-447
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• 2022

어리팥나방은 콩을 가해하는 Matsumuraeses속 해충으로 알려져 있다. 본 연구는 어리팥나방의 개체군동태를 예측하기 위하여 발육단계별 발육기간, 성충의 수명과 번식능력을 10, 13, 19, 22, 25, 28, 31℃ 항온조건에서 조사하였다. 알은 조사된 모든 항온조건에서 부화하였고, 유충은 10, 13, 31℃를 제외한 온도조건에서 성공적으로 성충으로 발육하였다. 발육단계별 발육기간과 성충 수명은 온도가 상승할수록 감소하였다. 어리팥나방 발육단계별 발육영점온도와 유효적산일은 선형회귀방법을 이용하여 추정하였고 발육최저, 최고한계는 LRF와 SSI모델을 이용하여 계산하였다. 1령 유충 부화부터 성충출현까지의 발육영점온도와 유효적산일은 10.2℃와 492.04DD였다. SSI모델을 이용한 부화부터 성충출현까지 발육최저 및 최고온도는 16.7℃과 29.1℃였고 이들간의 차이 즉 발육적정온도범위는 12.4℃였다. 온도와 관련된 어리팥나방 성충의 생존과 산란특성을 이용하여 산란모형을 작성하였다. 본 연구에서 제시한 온도발육모형과 산란모형은 어리팥나방의 개체군모형 작성과 콩 작물의 종합적인 해충군관리체계 확립에 기여할 것으로 보인다.

• 한국농림기상학회지
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• 제20권2호
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• pp.145-148
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• 2018

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 1998년도 Proceedings of International Symposium on Remote Sensing
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• pp.370-375
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• 1998

Spectral reflectance signatures of upland crops at OSMI bands were collected and evaluated for the feasibility of crop discrimination knowledge-based on crop calendar. Effective bands and their ratio values for discriminating corn from two other legumes were defined with OSMI equivalent bands and their ratio values. June 22 among measurements dates was the best date for corn discrimination from two other legumes, peanut and soybean, because all OSMI equivalent bands and their ratio values in June 22 were highly significant for corn separability. Phenological growth stage of a silage corn (rs510) could be estimated as a function of spectral reflectance signatures in vegetative stage. Five growth stage prediction models were generated by the SAS procedures REG and STEPWISE with OSMI equivalent bands and their ratio values in vegetative stage.

• 한국농림기상학회:학술대회논문집
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• 한국농림기상학회 2003년도 춘계 학술발표논문집
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• pp.39-41
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• 2003

The crop growth simulation model could be adopted to evaluate the impact not only of the long term climate change such as atmosphere $CO_2$ concentration rising and global warming but also of the predicted short term weather variability on the national crop production. There are several growth simulation models for predicting rice crop performance such as ORYZA1, CERES-Rice, Rice Clock Model, and SIMRIW.(omitted)

• 한국농공학회논문집
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• 제64권1호
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• pp.51-63
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• 2022

Up-to-date statistics of crop cultivation status is essential for farm land management planning and the advancement in remote sensing technology allows for rapid update of farming information. The objective of this study was to develop a classification model of rice paddy or winter crop fields based on NDWI, NDVI, and HSV indices using Sentinel-2 satellite images. The 18 locations in central Korea were selected as target areas and photographed once for each during summer and winter with a eBee drone to identify ground truth crop cultivation. The NDWI was used to classify summer paddy fields, while the NDVI and HSV were used and compared in identification of winter crop cultivation areas. The summer paddy field classification with the criteria of -0.195

• 한국작물학회:학술대회논문집
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• 한국작물학회 2022년도 추계학술대회
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• pp.191-191
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• 2022

Heterostyly continues to fascinate evolutionary biologists interested in heredity, evolution, breeding, and adaptive function. Polymorphism demonstrates how simply inherited developmental changes in the location of plant sexual associations can have important consequences for population pollination and mating biology. In contrast to homozygous self incompatibility, only a small number of mating phenotypes can be maintained in the population because insect pollinators have limitations in achieving multiple segregation sites for pollen deposition. Field studies of pollen tube growth have shown that reciprocal style-stamen polymorphisms function to increase the capacity of insect-mediated cross-pollination. The genetic pattern of style morphs is well established in various taxa, but despite recent advances, the identity, number, and structure of the genes controlling the heteromorphic syndrome have been poorly elucidated. The phenomenon of heterostyly in buckwheat has been controlled by gene complex concentrate to S-locus. Homomorphic autogamous buckwheat strains were established by the interspecific hybridization. Backcrossing of this line to the common buckwheat (pin) and selecting homostylar progenies made it possible to introduce the self-compatible gene into common buckwheat. In the result, we obtained the BC₉F₂ generation, and defined the strong linkage between flower type and self-incompatibility by microscopic observation of pollen tube growth. This finding suggests that self-incompatibility character is not controlled by one gene. Moreover, we defined the strong linkage between flower type and self-incompatibility. It strongly supports the S supergene theory. Therefore, we have plan to elucidate the heterostyly self-incompatibility by using molecular genetics, proteome analysis and apply to exploitation of buckwheat improvement. In near future, the expression of heterozygous syndromes in genus Fagopyrum with single isolated heterozygous species may provide clues to early stages of polymorphic assembly and shed light on evolutionary models of heterozygous strains.

• 한국작물학회지
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• 제55권4호
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• pp.275-283
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• 2010

이 등(2009b)의 보고에서는 등숙기 기온과 일사량이 종실중 및 종실질소함량에 미치는 영향과 이들 관계를 분석하였고, 이 등(2009a)의 보고에서는 등숙기 생육형질이 종실중 및 종실질소함량에 미치는 영향과 이들 관계를 분석하였다. 본 연구는 종실중 및 종실질소함량과 등숙기 기상(온도, 일사량) 및 등숙기 생육형질과의 관계를 이용하여 등숙기간 중 종실중 및 종실질소함량의 형성과정을 추정하는 모형을 구축하고자 하였다. 1. 출수후 등숙 진전에 따른 유효적산온도(AET, 임계온도 $7^{\circ}C$)와 적산일사량(AR)의 상승적에 따른 종실중과 종실질소함량의 변화를 나타내었을 때 통일한 AET ${\times}$ AR에서도 종실 종 및 종실질소함량의 상당한 변이가 존재하였다. 2. Logistic 함수를 이용하여 AET ${\times}$ AR에 따른 종실중과 종실질소함량의 최대경계선을 추정하였으며, 이를 각각 최대 종실중(GWmax)과 최대 종실질소함량(GNmax) 추정식으로 이용하였다. 3. 등숙기 생육형질 종 엽면적지수, 지상부 총건물중, 영화수 및 지상부 총질소함량이 등숙기간 중 종실중과 종실질소함량의 변이에 관여하였으며, 이들 등숙기 생육형질과 GWmax 및 GNmax를 이용하여 다음과 같은 종실중과 종실질소함량 추정식을 설정하였다. $$GW_E\;=\;6.557{\cdot}GWmax{\cdot}TDW^{0.5223}{\cdot}GNO^{-0.5582}$$ $$GN_E\;=\;150.20{\cdot}GNmax{\cdot}TNU^{0.5203}{\cdot}GNO^{-0.6205}$$ 4. 설정된 종실중 및 종실질소함량 추정 모델식을 이용하여 실제 종실중 및 종실질소함량을 추정하는 모형을 구축하였는데, 종실중 및 종실질소함량을 일부 과대 또는 과소 추정하였으나 대체적으로 실측값과 일치하는 경향이었으며, 등숙기 생육형질에 의하여 발생한 다양한 종실중 및 종실질소함량 변이를 비교적 잘 추정하였다.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2017년도 9th Asian Crop Science Association conference
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• pp.11-11
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• 2017

The most drought resistant among the five most important cereal crops, and a key dual-use (grain and biomass) crop in regions containing some of the world's most degraded soils, sorghum has inherent climate resilience that is likely to become more important under environmental conditions that are projected by many climate change models. The importance of sorghum might be further elevated by the development of productive genotypes that increase the extent and duration of soil cover beyond those of conventional annual crops, mitigating or even reversing losses of ecological capital through multiple crops from single plantings. Rich genetic and genomic resources have been developed to link Sorghum phenotypic diversity to its molecular basis, and in particular the genus has become a model for dissecting the molecular control of perenniality. Nature has made Sorghum perennial at least twice, and crosses between wild perennials and cultivated sorghums show the feasibility of developing genotypes with varying degrees of investment in perenniality while still providing harvestable food, feed, sugar and/or cellulose. Genetic analysis of progeny from these crosses is revealing the hereditary basis of traits related to ratooning and perenniality and providing diagnostic DNA markers. One perennial Sorghum species has adapted to continents and latitudes far beyond the reach of its progenitors, surviving stresses year after year that are only periodically experienced by conventional (annual) sorghum, and may also harbor novel alleles that may mitigate production challenges in conventional annual sorghums.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2022년도 추계학술대회
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• pp.273-273
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• 2022

The increasing number of Westernized eating patterns based on wheat flour in Korea has led to an increase in the rate of diseases such as obesity and diabetes, which has become a social problem. Wheat consumption is increasing due to changes in eating habits, but domestic wheat has low price competitiveness and has stagnated recently, so it is necessary to secure new resources to differentiate from imported wheat. Resistant starch, a newly created resource in domestic wheat, can act as a prebiotic similar to dietary fiber in the body, inducing microbial changes in the gut and having beneficial effects on metabolic syndrome. Wheat research on resistant starch was carried out based on the breeding of high amylose. A genome-wide association study (GWAS) was used to perform SNP identification and expression analysis related to wheat amylose through phenotype and genotype. 561 wheat core collection gene sources were investigated for amylose content in wheat, and related genes were extracted and analyzed. In the GWAS analysis, the model formulas BLIMK, FarmCPU, GLM, MLM, and MLMM were used to derive results such as QQ plots and Manhattan plots through phenotypic data. Among these models, BLAST was conducted to find the association between the SNPs identified using FarmCPU and genes related to starch, and 15 were found. Using the identified markers, it becomes easier to develop and browse related wheat cultivars according to their amylose content.

• 한국토양비료학회지
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• 제42권6호
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• pp.467-471
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• 2009

고랭지농업 환경에 적합한 당근재배지의 토양검정 시비기준을 설정하고자 표고 850m의 사양질 밭토양에서 N, P 및 K 비료의 시비수준을 달리하여 포장시험을 수행하였다. 고랭지 당근에 대한 안정 수량을 생산하기 위한 NP-K의 적정 시비배율은 현행 평난지 토양검정 기준량 대비 각각 0.75-0.50-0.50배이었다. 산출된 적정 시비배율을 현행 시비추천식에 적용하여 고랭지 여름작물인 당근에 알맞은 시비추천식으로 도출해 낼 수 있었다. 도출한 시비추천 방법에 의한 고랭지 당근의 NPK 시비량과 당근의 재배면적을 적용하여 산출한 화학비료의 총 절감량은 질소-인산-칼리의 경우 8.1-5.0-9.9톤으로 총합계는 23.0톤이었다. 이는 현행 평난비 시비량의 25~50%를 절감할 수 있는 양으로 고랭지에 본 연구결과의 시비추천식을 적용하면 고랭지 당근의 생산성도 유지하면서 고랭지 농업환경 오염을 경감할 수 있다.