Effect of NaCl concentration and Temperature on the Germination of Soybean (Glysine max L.) Cultivars

염분 농도와 온도차이가 콩 품종들의 발아에 미치는 영향

  • Published : 2000.03.01

Abstract

In order to obtain fundamental information for developing new salinity tolerance soybean cultivars, the germination rate was evalulated with a total of 28 soybean varieties. The germination rate of soybean cultivars was decreased as the NaCl concentration was higher and that by temperature difference was the lowest at 35$^{\circ}C$. the germination rate of 1.2% NaCl treatment of seed shape and size was the highest at 15$^{\circ}C$ but was the lowest at 35$^{\circ}C$ in small seed groups. The germination rates of Gumjungkong, Alchankong, Gumgangkong, Hayumkong, Hwasungpukong, Janmikong cultivars were higher when treated with 1.2% NaCl at 35$^{\circ}C$, but those of Dawonkong, Hannamkong, Kwangankong, Daebaekkong, Danwonkong, Sukwyangputkong, Keunolkong, Bokwangkong, Jangyoupkong cultivars were lower. The germination rate of soybean cultivars was significantly decreased by higher temperature and NaCl concentration.

NaCl 농도와 온도 차이가 콩 품종들의 발아율에 미치는 영향을 조사한 결과는 다음과 같다. NaCl 농도가 높을수록 콩 품종들의 발아율은 감소하였으며, 온도차이에 따른 발아율은 35$^{\circ}C$ 조건에서 가장 낮았다. 종자의 형태와 크기별로 구분한 발아율은 1.2% NaCl 처리구의 15$^{\circ}C$ 조건에서 소립종 군이 가장 높았고, 35$^{\circ}C$ 조건에서 는 가장 낮았다. 품종들의 발아율은 1.2% NaCl 처리구의 35$^{\circ}C$ 조건에서 검정콩, 알찬콩, 금강콩, 화엄콩, 화성풋콩, 장미콩 등이 비교적 발아율이 높았고, 다원콩, 한남콩, 광안콩, 대백콩, 단원콩, 석양풋콩, 큰올콩, 보광콩, 장엽콩 등이 발아율이 비교적 낮았다. 콩 품종들의 발아율에 있어서 NaCl 농도와 온도간에는 상호작용 효과가 인정되어 고온과 높은 NaCl 농도일수록 발아율은 급격히 감소하였다.

Keywords

References

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