• Title/Summary/Keyword: Web blotch of Peanut

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Occurrance of Peanut Web Blotch Caused by Phoma arachidicola Marasas, in Korea (Phoma arachidicola Marasas 에 의한 땅콩 그물무늬병의 발생)

  • Park, Kyung-Seok;Chung, Bong-Koo
    • The Korean Journal of Mycology
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    • v.19 no.3
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    • pp.226-230
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    • 1991
  • Since it was firstly identified in Suweon during the growing season in 1986, this fungus of peanut web blotch, Phoma arachidicola, has been widely distributed to the major peanut growing areas throughout the whole country. Disease symptoms appeared on the adaxial surface of peanut like ink drop lesion with net form, and finally turned to dark brown blotch. The fungus isolated was revealed to form dark brown colonies on PD agar at $28^{\circ}C$, resulting 4.5 mm mycelial extension per day. Hyaline conidia were observed to be either aseptate or single septeted, and sized with the ellipsoidal to cylindrical shape $3.0{\times}14.5\;{\mu}m$. The optimum temperature was ranged 24 to $26^{\circ}$ in the grwoth. Virginia type peanut was more resistant to the fungus than Spainish type in the field reaction.

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A New Short Stem, Lodging Resistance and High Yielding Peanut Variety "Pungan" (단경 내도복 다수성 땅콩 "풍안")

  • Pae, Suk-Bok;Hwang, Chung-Dong;Lee, Myung-Hee;Ha, Tae-Joung;Han, Sang-Ik;Shim, Kang-Bo;Cheong, Young-Keun;Park, Chang-Hwan;Park, Keum-Yong;Ahn, Jin-Gon
    • Korean Journal of Breeding Science
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    • v.41 no.4
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    • pp.635-639
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    • 2009
  • A new peanut variety "Pungan"(Arachis hypogaea ssp. hypogaea L.) was developed at the Department of Functional Crop, NICS(National Institute of Crop Science), in Milyang in 2008. It was developed from the cross between the high-yielding cultivar "Saedl" and the very short stem cultivar "Satonoka". "Pungan", a Virginia palnt type, has 20 branches with long ellipseshaped large grains. The 100 grain weight was 88 g, 7 g heavier than the check variety Daekwang. This variety is more resistant to late leaf spot and web blotch compared to Daekwang, a check variety. Moreover, it is lodging resistant owing to its short stem. "Pungsan" outyielded the check variety by 16% with 4.67 MT/ha in regional yield trials.

A New Short Stem, Disease Resistance and High Yielding Peanut "Pungsan" (단경 내병 다수성 땅콩 품종 "풍산")

  • Pae, Suk-Bok;Cheong, Young-Keun;Park, Chang-Hwan;Lee, Myung-Hee;Hwang, Chung-Dong;Shim, Kang-Bo;Jung, Chan-Sik;Jung, Churl-Whan;Park, Keum-Yong;Park, Chung-Beam;Choi, Gyu-Hwan;Lee, Jae-Chul;Kim, In-Jae;Kim, Je-Kyu
    • Korean Journal of Breeding Science
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    • v.40 no.2
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    • pp.173-177
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    • 2008
  • A new peanut variety "Pungsan" (Arachis hypogaea ssp. hypogaea L.) was developed at the Yeongnam Agricultural Research Institute, NICS, in Milyang in 2007. It was derived from a cross between a short stem cultivar "Satonoka" and a high-yielding local cultivar "Yecheon". "Pungsan" is the Virginia plant type. It has 18 branches per plant and 40 cm of main stem height. Each pod with long-ellipse shaped large kernel has two grains with light-brown testa and 100 seed weight was 95g in the regional yield trials (RYT). "Pungsan" showed more resistant to web blotch compared with check variety. In the regional yield trials "Pungsan" was outyielded in grain yield to the check variety by 16% with 4.45 MT/ha for grain.

A New Short Stem, Lodging Resistance and High Yielding Peanut "Charmpyeong" (단경 내도복 다수성 땅콩 품종 "참평")

  • Pae, Suk Bok;Cheong, Young-Keun;Shim, Kang-Bo;Hwang, Chung-Dong;Lee, Myung-Hee;Jung, Chan-Sik;Kang, Churl-Whan;Park, Keum-Yong;Park, Chung-Bean;Choi, Gyu-Hwan;Lee, Jae-Chul;Kim, In-Jae;Kim, Je-Kyu
    • Korean Journal of Breeding Science
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    • v.40 no.2
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    • pp.168-172
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    • 2008
  • A new peanut variety "Charmpyeong" (Arachis hypogaea ssp. hypogaea L.) was developed at the Yeongnam Agricultural Research Institute, NICS, in Milyang in 2007. It was developed from the cross between the high-yielding cultivar "Shindaekwang" and the very short stem cultivar "ICGV94216". This Virginia plant typed "Charmpyeong" has 33 cm stem height and 18 branch number Each pod with ellipse-shaped large kernel has two grains with brown testa and 100 seed weight was 88 g in the regional yield trials (RYT). This variety also showed more resistant to web blotch compared with check one. Especially it has resistance to lodging until harvesting owing to short stem. In the regional yield trials "Charmpyeong" was outyielded than check variety by 13% with 4.35 MT/ha for grain.