Studies on the Ecological Characteristics for the Plant Types in the Peanut(Arachis hypogaea L.) III. The Differences in Dry Matter Production and Distribution Ratio of Dry Matter Produced among Plant Types

땅콩의 초형별 생태적 특성에 관한 연구 III. 초형별 건물생산능력과건물 분배율

This study was conducted to investigate the dry matter production and distribution ratio of dry matter produced for each of 5 botanical types (Virginia-Small Seed, Virginia-Large Seed, Spanish, Valencia, Shinpung) of Peanut (Arachis hypogaea L.) in Peanut culture limiting region. The total dry weight increased in order of Virginia-Large seed, Virginia- Small Seed, Shinpung, Spanish, Valencia type. The maximum Crop growth rates (Cmax) were Virginia-Small seed 18.22-23.41 g/㎡/day, Virginia-Large seed 19.61-20.03 g/㎡/day, Shinpung 16.33-19.77 g/㎡/day, Spanish 13.86-16.28 g/㎡/day, Valencia 13.97-16.25g/㎡/day, respectively. LAI showed the high value at vinyl-mulching than non-mulching. In the early filling stage, distribution ratio of dry matter produced showed the highest at the shinpung type than the other types.

땅콩의 초형, 재배양식에 따른 건물생산능력 및 건물분배율을 구명하고저 virginia소립종, virginia대립종, spanish, valencia, shinpung의 5초형에 속하는 10품종을 공시, 재배양식 2수준(피복, 무피복)으로 하여 시험을 실시하였던 바 그 결과를 요약하면다음과 같다. 1. 건물생산량은 피복재배의 경우 virginia-large seed 1,556g/$m^2$, virginia-small seed 1,347g/$m^2$, shinpung 1,307g/$m^2$, spanish 1,170g/$m^2$, valencia 1,120g/$m^2$이었으며 무피복재배에서는 virginia-large seed 1,389g/$m^2$, virginia-small seed 1,267 g/$m^2$, shinpung 1,192g/$m^2$, spanish 1,066g/$m^2$, valencia 1,035g/$m^2$였다. 2. 최대건물생장속도(CGR)는 virginia-large seed 19.61~20.03g/$m^2$/day, virginia-small seed 18.22~23.4lg/$m^2$/day, shinpung 16.33~19.77g/$m^2$/day, spanish 13.86~16.28g/$m^2$/day, valencia 14.97~16.25g/$m^2$/day였다. 3. 엽면적지수(LAI)는 무피복재배보다 피복재배에서 높았는데, 피복재배의 경우 virginia-large seed 17.2 ＞virginia-small seed 7.0 ＞ spanish 5.5 ＞ valencia=shinpung 5.4순이었고, 무피복재배에서는 virginia-large seed 6.1 ＞ virginia - small seed 5.8 ＞ spanish 5.0 ＞ valencia 4.9 ＞ shinpung 4.4 순으로 virginia-large seed가 피복, 무피복재배에서 모두 높았다. 4. 경, 엽, 근의 건물분배율은 생육이 진전됨에 따라 감소하였고 협실의 건물분배율은 증가하는 경향으로등숙초기(7월말)에 있어서 피복재배의 경우 shinpung 86%＞ virginia-small seed 64%＞virginia-large seed 63%＞spanish 45%＞valencia 44%순이었으며 무피복재배에서는 shinpung=spanish=valencia 60%＞ virginia - large seed 45%＞ virginia-small seed 40%순으로 shinpung type이 등숙초기에 건물분배율이 가장 높았다.