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d a b e → → → → → f c g h Fig. 43. Habit character of Fusarium solani (Mart.) Sacc. on (a) whole seed (11X) and sterile lemmas at (b) 21X and (c) 40X showing (d) pionnotes and (e) false heads. Photomicrograph of F. solani showing (f) conidiophore, (g) macroconidia, and (h) microconidia at 40X stained with lactophenol blue. Observed frequency (%) 70 60 50 40 30 20 10 0 Sterile glumes Awn Partition bet. lemma and palea Seed part Entire seed Lemma/ palea only or both Fig. 44. Observed frequency of Fusarium solani occurrence on the seed. Fig. 45. Plate cultures of Fusarium solani (Mart.) Sacc. showing colony growths on PDA, PSA, and OA incubated at ART, 21 °C, and 28 °C at 15 d after inoculation. 43
verse side of the agar plate is zonated. The color is dark reddish brown. At 21 °C under alternating 12-h NUV light and 12-h darkness, colonies spread relatively fast and attain a 5.16-cm diam in 5 d. They are azonated; aerial mycelia are nil to scanty, slightly pressed to the media, powdery, becoming creamy with age, and light yellow at the center, becoming dull reddish brown n with light gray margins. The colony on the reverse side of the agar plate appears azonated and dull reddish brown. At 28 °C under alternating 12-h fluorescent light and 12-h darkness, colonies spread relatively fast and attain a 5.28-cm diam in 5 d. They are zonated with even margins and aerial mycelia are scanty and hairy, with 6-mm submerged advancing mycelia. The color is dull brown to brown, becoming lighter toward the margin. The colony on the reverse side of the agar plate appears zonated with a dull reddish brown color. Nigrospora sp. teleomorph: Khushia oryzae Huds. Disease caused: minute leaf and grain spot a. Symptoms Presence of numerous minute black pustules (
Page 2 and 3: Contents Foreword Preface v vi INTR
Page 4 and 5: Introduction The purpose of seed he
Page 6 and 7: Functions of seed health testing Se
Page 8 and 9: % infected seed lots 100 80 60 40 2
Page 10 and 11: Table 3. Pathogen profiles closely
Page 12 and 13: Table 4. Germination (%) of untreat
Page 14 and 15: Microorganisms associated with seed
Page 16 and 17: Identification of fungi detected on
Page 18 and 19: Detection frequency (%) 100 80 60 4
Page 20 and 21: moderately fast and attain a 4.32-c
Page 22 and 23: Detection frequency (%) 120 100 Eas
Page 24 and 25: They are feathery to slightly fluff
Page 26 and 27: Observed frequency (%) 120 100 80 6
Page 28 and 29: Frequency level (%) 120 100 East As
Page 30 and 31: a 4.90-cm diam in 5 d. They are eve
Page 32 and 33: Detection frequency (%) 90 80 East
Page 34 and 35: gray, becoming dark near the margin
Page 38 and 39: Sarocladium oryzae (Sawada) W. Gams
Page 40 and 41: a b c e f d f Fig. 35. Habit charac
Page 42 and 43: Fig. 38. Occurrence of black kernel
Page 44 and 45: a b d → → → e → f → f →
Page 48 and 49: Fig. 46. Occurrence of minute leaf
Page 50 and 51: of the agar plate appears slightly
Page 52 and 53: Detection frequency (%) 120 100 Eas
Page 54 and 55: Pinatubo oryzae Manandhar & Mew Dis
Page 56 and 57: ange with orange. The pionnotes are
Page 60 and 61: Other fungi detected on rice seeds
Page 62 and 63: a b e c d Fig. 65. Habit character
Page 64 and 65: a d d b c Fig. 69. Habit character
Page 66 and 67: → → → a b f f e d e e c f Fig
Page 68 and 69: a b a Fig. 76. Habit character of F
Page 70 and 71: a b d c d e e Fig. 79. Habit charac
Page 72 and 73: a b c → → → d → Fig. 83. Ha
Page 74 and 75: → → → a b d c Fig. 86. Habit
Page 76 and 77: a b c Fig. 89. Habit character of P
Page 78 and 79: a b d c e Fig. 92. Habit character
Page 80 and 81: → → → → a b e f → c d Fig
Page 82 and 83: a b c d Fig. 100. Habit character o
Page 84 and 85: → → → → → → a → →
Page 86: Savary S, Willocquet L, Elazegui FA

Untitled - International Rice Research Institute

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