忠州·中原地域에 있어서 導入 수수×수단그라스系 雜種의 生産性과 適應性에 關한 硏究 = Studies on the Productivity and Adaptability of Introduced Sorghum×Sudangrass hybrids in Jungweon and Chungju Area

국문 초록 (Abstract)

本 實驗은 忠州ㆍ中原地域에 있어서 生産性과 適應性이 높은 品種을 선발할 목적으로 建國大學校 自然科學大學 飼料圃場에서 수수 x 수단그라스系 雜種 9品種을 公試品種으로 하여 諸形質,靑草 및 乾物收量을 비교 검토하였다.
1. NC 855과 T.E-haygrazer品種이 다른 品種보다 草長이 높았으며, Super Gazer는 가장 짧은 형태를 보였다.
2. 다른 品種에 비하여 總葉瀑은 Sordan 79 가 174.9mm로 가장 높았으며, Super Grazer와 Pioneer 988도 165mm 以上의 높은 葉幅을 나타냈다. 수수 x 수단그라스계 雜種의 總경의 굴기는 41.9mm-47.7mm였으며, 특히 Super Grazer는 50.7mm로 높게 나타났다.
總 葉長은 Garst 757이 가장 높았다.
3. 總飼草生産에 대한 평균 葉以率은 FP4 Hybrid가 38%로 가장 높았으며, Super Grazer, Pioneer 988과 Sordan 79도 35% 以上의 높은 葉以率을 갖고 있다.
4. 수수 x 수단그라스계 雜種의 平均 분얼구 1.9-3.2個이며 Sordan 79, Grast 757 Pioneer 988은 2.9-3.1個이었다. 특히 GW 9110G는 3.4個로 가장 높았다.
5. Pioneer 988과 sordan 79가 Super Grazer보다 生草收量 乾物收量이 많았으며(P<0.01) Super Grazer가 乾物收量이 가장 낮았다 (P<0.01).
G83F, NC855, FP4, T. E.haygraxer, GW 9110G 品種도 ha당 17,000kg 以上의 높은 收量을 보여주었다.
本 實驗의 結果를 종합하여 볼 때 수수 x 수단그라스계 雜種 중 Pioneer 988과 Sordan 79가 收量이 가장 우수하며 忠州, 中原地域에서 청예용 수수 x 수단그라스계 雜種의로 인정되었다.

다국어 초록 (Multilingual Abstract)

In order to select the forage of high productivity suited for soiling in Jungweon and Cjungju are, the yield perfomance and the growth characteristics of 9 introduced Sorghum-Sudangrass hybrids, were evaluated at collage of natural science of Kon-Kuk University in Chungju,
1. NC855 and T. E-haygrazer were taller than the other species, whill Super Grazer was the shortest type.
2. Total leaf width to the other species of Sordan 79 was the highest(174.9mm), and also those of Super Grazer and Pioneer 988 were over 165mm, Total stem diameter of Sorghum x Sudangrass hybrids were ranged from 41.9mm to 47.4mm and especially Super Grazer was 50.7mm, and total leaf lengh was the highest in Garst 757.
3. average D.M. proportion(%)ato the total forage yield of Fp4 hybrid was the hightest(38%)and also these of Super Grazer, Pioneer 988 and Sordan 79 had high over 35%.
4. Average new had number of Sorghum x Sudangrass hybrids were ranged from 1.9 to 3.2 and average new bud number of Sordan 79, Garst 757 and Pioneer 988 were ranged from 2.9 to 3,1 and GW 9110G was this the highest(3.4).
5. Pioneer 988 and Sordan 79 produced more fresh weight and dry matter than Super Grazer (P<0.01). Dry matter yield of Super Grazer was the lowest (P<0.01). G83F, NC855, FP4, T. E-haygrazer and gW 91110G also showed high yield over 17,000kg dry matter per ha.
As the resulte of this experiment it indicated that Pioneer 988 and sordan 79 are the most excellent hybrids among selected Sorghum x Sudangrass hybrids for Summer Forage production.