• Title/Summary/Keyword: aged seed

검색결과 56건 처리시간 0.021초

Nondestructive Classification between Normal and Artificially Aged Corn (Zea mays L.) Seeds Using Near Infrared Spectroscopy

  • Min, Tai-Gi;Kang, Woo-Sik
    • 한국작물학회지
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    • 제53권3호
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    • pp.314-319
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    • 2008
  • Near infrared (NIR) spectroscopy was used to classify normal and artificially aged nonviable corn (Zea mays L., cv. 'Suwon19') seeds. The spectra at 1100-2500nm were scanned with normal and artificially aged single seeds and analyzed by principle component analysis (PCA). To discriminate normal seeds from artificially aged seeds, a calibration modeling set was developed with a discriminant partial least square 2 (PLS 2) method. The calibration model derived from PLS 2 resulted in 100% classification accuracy of normal and artificially aged (aged) seeds from the raw, the 1st and 2nd derivative spectra. The prediction accuracy of the unknown normal seeds was 88, 100 and 97% from the raw, the $1^{st}$ and $2^{nd}$ derivative spectra, and that of the unknown aged seeds was 100% from all the raw, the $1^{st}$ and $2^{nd}$ derivative spectra, respectively. The results showed a possibility to separate corn seeds into viable and non-viable using NIR spectroscopy.

Differences of Water Absorption Property and Seed Viability according to Morphological Characters in Soybean Genotypes

  • Kim, Seok-Hyeon;Kim, Ji-Na;Chung, Jong-Il;Shim, Sang-In
    • 한국작물학회지
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    • 제51권1호
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    • pp.59-65
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    • 2006
  • The impermeable seed coat is valuable trait in soybean because impermeable seed retain viability for longer period than permeable seed under adverse conditions such as delayed harvest or prolonged storage. Soybean seeds of various size showing different seed hardness were examined for their water absorption and seed viability under adverse storage conditions. Of one hundred thirty nine genotypes, eight types of seeds having different seed hardness and seed size were used as material. Soybean genotypes showing high hard seed rate, GSI13125 (89%), GSI10715 (54%), and GSI10284 (42%), were slow in water absorption and low in the electroconductivity of seed leachate in distilled water. Germination of GSI10284 and GSI13125 that have higher hard seed rate was less affected by CSVT and artificial aging treatment indicating higher seed storability. The higher storing ability of both collections was confirmed by electroconductivity test for leachate. GSI10122 showed low seedling emergence when the seeds were artificially aged. This genotype was considered as to having a poor storing ability based on difference of electroconductivity before and after artificial aging. Among tests conducted in the experiment, CSVT could be used for determining storage life in legumes. In conclusion, water absorption property of seed was strongly related to the hardness that is directly related to the seed viability and storing ability in soybean seed.

퇴화처리에 따리 유채, 배추, 무 종자의 당 누출 (Sugar Leakage from Differently-aged Seeds of Rape, Chinese Cabbage and Radish)

  • 홍승범;이석순
    • 한국작물학회지
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    • 제40권3호
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    • pp.322-327
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    • 1995
  • 비파괴적으로 활력이 낮은 종자를 선별해내는 방법의 기초를 확립하고자 유채, 배추, 무 종자를 상대습도 90%, 온도 45$^{\circ}C$에서 인위적으로 퇴화시켜 종자활력과 종자를 물에 침지 할 때 분비되는 당의 종류, 분비량, 분비시간과의 관계를 구명한 결과를 요약하면 다음과 같다. 1. 모든 작물의 건전종자는 전당을 분비하지 않았지만 죽은 종자는 침지 후 4~8시간부터 전당을 많이 분비하였다. 2. 유채, 배추, 무의 건전종자는 sucrose와 g1ucose를 가장 많이 함유하였고, stachyose, fructose, raffinose도 함유하였다. 인공퇴화과정에서 stachyose, raffinose, sucrose는 줄고, glucose와 fructose는 증가하였다.

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주요식량작물 종자세 개선에 관한 연구 (Studies on Practical Methods to Control Seed Vigour in Several Food Crops)

  • 김진기
    • 한국작물학회지
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    • 제39권2호
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    • pp.128-138
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    • 1994
  • 발아의 신속성과 균일성을 높이기 위하여 벼, 보리, 콩 종자에 대하여 몇가지 화학물질처리와 종자의 흡습건조처리를 통하여 종자퇴화지연효과를 검토하였다. 처리한 생장촉진제 및 노화지연제간에 경미한 차이는 있었으나 GA$_3$가 벼의 발아율을 높인것 외에는 뚜렷한 종자세 개선의 효과를 보이지 않았다. 노화종자를 PEG용액에 흡습건조처리할 경우 용액농도가 높을수록 평균발아일수가 길어지고 발아율이 낮아지는 경향이나 발아율 유지의 효과나 발아균일성향상의 효과는 없었다. 저온, 과습 및 삼투조건 등 불량한 환경에 대한 발아반응도 미미하였다. 어느 처리도 종자세 개선에 뚜렷한 효과를 보이지는 않았으나 GA$_3$ 처리가 전체적으로 발아반응이 그 중 좋은 편이었다.

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오이종자의 발아성 증진을 위한 Hydropriming 효과 (Hydropriming Seed Treatment Improve Germinability of Cucumber)

  • 강점순
    • 생물환경조절학회지
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    • 제12권4호
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    • pp.228-234
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    • 2003
  • 본 연구는 오이종자의 발아율 향상과 발아촉진을 위해 간편하고, 비용을 절감할 수 있는 hydropriming의 적정 환경조건을 구명하기 위해 수행되었다. 오이종자의 발아촉진에 최적 priming 처리제는 50 mL $NaNO_3$였다. 유근장 및 유근 건물중은 priming 처리제 종류에 따라 유의적인 차이는 없었으나, priming 및 hydropriming 종자는 무처리보다는 높았다. 그러나 50 mL $NaNO_3$와 hydropriming 처리간 발아력 증진 효과가 동일하여 오이종자에서는 물을 이용한 hydro-priming 처리가 처리비용을 절가할 수 있어 합리적인 종자처리였다. 오이종자의 hydropriming 적정 처리온도는 20$^{\circ}C$, 처리시간은 24시간이였다. Hydropriming시 종자 2g에 대한 용액량 10 mL 공급처리에서 발아율이 향상되었고 발아촉진에 좋아 적정 용액량이라고 판단되었다. 인위노화 종자는 발아율이 감소하였고 $T_{50}$ 및 MDG는 지연되었으며, 비정상적인 발아는 증가하였다. 활력이 저하된 조화종자를 ,hydropriming한 처리는 발아율이 향상되었고, 조기 발아하였다. 또한 비정상인 발아는 감소되었으며, 유근생장이 촉진되어 발아력이 부분적으로 회복되었다. 이러한 경향은 노화일수가 경과된 종자일수록, 부적당한 발아조건인 15$^{\circ}C$에서 현저하였다.

FT-NIR을 이용한 상추(Lactuca sativa L) 종자의 비파괴 선별 기술에 관한 연구 (Study on non-destructive sorting technique for lettuce(Lactuca sativa L) seed using fourier transform near-Infrared spectrometer)

  • 안치국;조병관;강점순;이강진
    • 농업과학연구
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    • 제39권1호
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    • pp.111-116
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    • 2012
  • Nondestructive evaluation of seed viability is one of the highly demanding technologies for seed production industry. Conventional seed sorting technologies, such as tetrazolium and standard germination test are destructive, time consuming, and labor intensive methods. Near infrared spectroscopy technique has shown good potential for nondestructive quality measurements for food and agricultural products. In this study, FT-NIR spectroscopy was used to classify normal and artificially aged lettuce seeds. The spectra with the range of 1100~2500 nm were scanned for lettuce seeds and analyzed using the principal component analysis(PCA) method. To classify viable seeds from nonviable seeds, a calibration modeling set was developed with a partial least square(PLS) method. The calibration model developed from PLS resulted in 98% classification accuracy with the Savitzky-Golay $1^{st}$ derivative preprocessing method. The prediction accuracy for the test data set was 93% with the MSC(Multiplicative Scatter Correction) preprocessing method. The results show that FT-NIR has good potential for discriminating non-viable lettuce seeds from viable ones.

맥주보리의 종자세 검정치와 포장성적과의 관계 (Relations between Seed Vigor Criteria and Field Performance in Malting Barley)

  • Kim, Seok-Hyeon
    • 한국작물학회지
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    • 제41권6호
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    • pp.656-664
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    • 1996
  • 광산, 진주와 밀양에서 수확된 사천006, 두산12 호와 두산2002 종자를 인위노화시켜 종자세를 조절하였다. 이들 종자로서 표준발아검사(standard germination test), 저온발아검사(cold germi-nation test), 전기전도도검사(electroconductivity test)와 Tetrazolium 검사(TZ vigor test)를 실시하여 포장출아율 및 수량과의 관계를 구명하고자 하였다. 9가지 seed lot을 이용한 맥주보리의 포장출아율 예측에는 표준발아검사에서의 발아율만으로 65%의 예측효과가 인정되었고 표준발아검사에서의 유묘세와 저온발아검사에서의 유묘세와 발아율 parameter 또한 효과적인 방법임을 다중회귀분석으로 알 수 있었다. 수량 예측에는 TZ검사에서의 종자세 지수와 표준발아검사에서의 발아율과 TZ검사에서의 예측발아율이 효과적 인 parameter임을 알 수 있었다.

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Effect of Humidification and Hardening Treatment on Seed Germination of Rice

  • Lee, Suk-Soon;Kim, Jae-Hyeun;Hong, Seung-Beom;Yun, Sang-Hee
    • 한국작물학회지
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    • 제43권3호
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    • pp.157-160
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    • 1998
  • To find out the effects of humidification and hardening of rice (Oryza sativa L. cv. Ilpumbyeo) seeds on the germination, both normal and artificially aged seeds with 60% germination rate were humidified at 40, 60, and 80% RHs and $25^{\circ}C$ for five weeks or hydrated for 6, 12, 18, and 24 hours at $25^{\circ}C$ from one to five cycles for hardening. Relative humidity and duration of humidification did not affect the germination rate of normal seeds, while reduced the time to get 50% germination rate ($T_{50}$) by 1.0~1.6 days compared to that of normal seeds at $25^{\circ}C$. Aged seeds humidified at 40 and 60% RHs did not affect the germination rate and $T_{50}$ regardless of relative humidity and duration of treatment, while at 80% RH, the germination rate decreased and $T_{50}$ increased significantly with the duration of humidification. Hardening of normal seeds reduced $T_{50}$ by 0.7~1.1 days without changes in the germination rate. However, the germination rate and $T_{50}$ of aged seeds soaked in water for 6, 12, and 18 hours were similar regardless of soaking/drying cycles, while hardening of artificially aged seeds with 1~4 cycles in 24 hours soaking increased the germination rate by 11-16% and reduced $T_{50}$ by 1.4~2.0 days.

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