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Table 1. Major agronomic characteristics of Tainan No. 21¡¦s parental lines.
¿Ë¥»
Parental Line
GDDa/ ®è°ª
Plant
height
(cm)
ÁJ¦ì°ª
Ear height
(cm)
¬ó¹ê¦æ¼Æ
Kernel row
per ear
(row)
¦Ê²É­«
100 kernel weight
(g)
¬ó¹ê²£¶q
Grainyield
(kg/ha)
¶}ªá´Á
Days to
tassel
¦Rµ·´Á
Days to
silk
¦¨¼ô´Á
Days to
maturity
¥À¥»
P-121
516 531 847 165 86 16 18.7 3,429
¤÷¥»
CI-8122
536 546 852 170 102 16 18.0 3,000

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¤G¡Bµ²¦X¤OÀË©w¡G

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  2. “ǯS®íµ²¦X¤OÀË©w¡G¯S®íµ²¦X¤OÀË©w¸ÕÅç¤À§O©ó83¦~¬î§@¤Î84¦~¬K§@Á|¦æ¡Aªí²{¸ûÀu6²Õ¦X¦¨ÁZ¦C¦pªí3¡C¥Ñªí¤¤±oª¾¡A¥­§¡¤½³¼ÂA¯ó²£¶q¥HPFH 83-1¤§58,925¤½¤ç¤ÎPFH 83-9¤§58,438¤½¤ç³Ì°ª¡A¸ûXL 678¤Î¥x«n19¸¹¤À§O¼W²£15¡ã16¢H¤Î8¡ã9¢H¡C¤G²Õ¦X¸­´³¯f¡Bùׯf¡B²ô»G¯f¤Î­Ë¥ñ©Êµ¥¯Å§¡Ãþ¦ü¡C¨äÁ`¥i®ø¤Æ¾i¤À¤ñ¡]TDN¢H¡^¦P¬°67¢H¡A¤¶©ó¤G¹ï·Ó«~ºØ¶¡¡A¥­§¡®è°ªPFH 83-1¬°273¤½¤À¡APFH 83-9¬°269¤½¤À¡A§¡¸û¤G¹ï·Ó«~ºØ°ª¡AÁJ¦ì°ªPFH 83-1¬°141¤½¤À¡A¤¶©ó¤G¹ï·Ó«~ºØ¶¡¡APFH 83-9¬°156¤½¤À¡A¤ñ¤G¹ï·Ó«~ºØ°ª12¡ã30¤½¤À¡APFH 83-1¤ÎPFH 83-9¦¬³Î´Á¤À§O¬°89¤Ñ¤Î90¤Ñ¡A¸û¤G¹ï·Ó«~ºØ¦­¼ô1¡ã5¤Ñ¡C

ªí2.«C³Î¥É¦Ì·s«~¨t¤@¯ë²Õ¦X¤OÀË©w¸ÕÅç¸ûÀu8²Õ¦X¤§¹AÃÀ©Êª¬¤ÎÂA¯ó²£¶q¡]1994¡A¬K§@¡^
Table 2. The agronomic characteristics and fresh weight of eight superior combinations in general combing ability test (Spring crop, 1994).
²Õ ¦X Combination ¶}ªá´Á
Days
to tassel
(day)
¦Rµ·´Á
Days
to silk
(day)
¦¬³Î´Áa/
Days to
harvest
(day)
¸­´³¯f
Leaf
blight
(class)
ùׯf
Rust
(class)
²ô»G¯f
Stalk rot
(class)
­Ë¥ñ©Ê
Lodging
(%)
®è°ª
Plant
height
(cm)
ÁJ¦ì°ª
Ear
height
(cm)
ÂA¯ó²£¶q
Fresh weight
(kg/ha)
«ü¼Æ
Index (¢H)
(CK1) (CK2)
P-1212¡Ñ¥x«n¿ï10¸¹ 67 69 91 2 2 2 1 245 139 73,417a 116 130
CI-8122¡Ñ¥x«n¿ï10¸¹ 64 67 90 2 2 1 1 257 146 64,080b 101 114
Pi 17¡Ñ¥x«n¿ï10¸¹ 67 69 91 2 3 1 1 251 150 64,000b 101 114
G-7-2-1-1¡Ñ¥x«n¿ï10¸¹ 63 66 90 2 3 2 1 267 168 63,583bc 100 113
I-5342¡Ñ¥x«n¿ï10¸¹ 64 67 88 2 2 1 1 222 115 63,167bc 99 112
P-1222¡Ñ¥x«n¿ï10¸¹ 65 67 88 2 2 2 1 253 147 63,167bc 99 12
CI-8111¡Ñ¥x«n¿ï10¸¹ 69 71 92 2 3 1 1 245 132 61,750c 97 109
Hon-1-1¡Ñ¥x«n¿ï10¸¹ 64 67 87 2 2 1 2 227 138 61,583c 97 109
XL 678 (CK1) 68 71 93 2 2 1 1 250 135 63,500bc 100 113
¥x«n19¸¹ (CK2) 64 67 94 2 1 1 1 232 122 56,375d 89 100

Means within same column followed by same letter insignificantly different at 0.05 probability level (DMRT)

a/ ¦¬³Î´Á¡G¥É¦Ì¶À¼ô´Á¬ù±Â¯»«á40¡ã45¤Ñ¡A­c¸­¬\¶À¬ó²É§t¤ô¶q70¢H¡ã72¢H¡AÀ½¯}¬ó²ÉµL¨Å¥Ä²Gº¯¥X¡C

ªí3.¡@«C³Î¥É¦Ì·s«~¨t¯S®í²Õ¦X¤OÀË©w¸ÕÅç¸ûÀu6²Õ¦X¤§¹AÃÀ©Êª¬¤ÎÂA¯ó²£¶q¡]1994¡A¬î§@¤Î1995¡A¬K§@¡^
Table 3. The agronomic characteristics and fresh weight of six superior combinations in specific combing ability test (Fall crop, 1994; Spring crop,1995).
´Á§@§O
Season crop
²Õ ¦X
Combination
¶}ªá´Á
Days to
tassel
(day)
¦Rµ·´Á
Days to
silk
(day)
¦¬³Î´Áa/
Days to
harvest
(day)
¸­´³¯f
Leaf
blight
(class)
ùׯf
Rust
(class)
²ô»G¯f
Stalk
rot
(class)
­Ë¥ñ©Ê
Lodging
(%)
®è°ª
Plant
height
(cm)
ÁJ¦ì°ª
Ear
height
(cm)
Á`¥i®ø¤Æ
¾i¤À¤ñ
TDN
(¢H)
ÂA¯ó²£¶q
Fresh
weight
(kg/ha)
«ü¼Æ
Index (¢H)
(CK1) (CK2)
83¦~¬î§@
Fall crop,1994
PFH 83-9 59 61 90 2 1 1 1 285 157 67 68,375 110 110
PFH 83-1 57 60 88 1 1 1 1 270 129 66 64,891 105 105
PFH 83-12 60 63 90 1 2 1 2 274 155 67 60,625 97 97
PFH 83-5 60 63 90 2 2 2 1 291 158 64 67,453 109 109
PFH 83-4 58 60 88 1 3 1 1 266 149 66 60,672 98 98
PFH 83-6 61 63 91 2 2 1 1 278 181 65 61,984 100 100
XL 678 (CK1) 63 66 92 2 2 1 1 280 125 63 62,031 100 100
¥x«n19¸¹ (CK2) 59 62 90 1 1 1 1 238 120 67 61,938 100 100
LSD (0.05) 3,745
84¦~¬K§@
Spring crop,1995
PFH 83-9 69 72 89 2 2 2 1 253 155 67 48,500 122 104
PFH 83-1 68 71 90 2 2 1 1 276 153 67 52,959 134 114
PFH 83-12 68 70 93 2 2 1 1 245 164 67 51,250 129 110
PFH 83-5 69 72 92 2 3 2 1 286 159 65 46,563 117 100
PFH 83-4 68 71 91 2 2 1 1 248 162 67 50,259 127 108
PFH 83-6 68 71 93 2 1 2 1 288 160 68 48,313 122 104
XL 678 (CK1) 72 75 95 3 2 1 1 251 162 62 39,667 100 85
¥x«n19¸¹ (CK2) 67 69 91 1 1 1 2 230 131 68 46,438 117 100
LSD (0.05) 5,805
¥­§¡Ave. PFH 83-9 64 67 90 2.0 1.5 1.5 1.0 269 156 67 58,438 115 108
PFH 83-1 63 66 89 1.5 1.5 1.0 1.0 273 141 67 58,925 116 109
PFH 83-12 64 67 92 1.5 2.0 1.0 1.5 260 160 67 55,938 110 103
PFH 83-5 65 68 91 2.0 2.5 1.5 1.0 289 159 65 57,008 112 105
PFH 83-4 63 66 90 1.5 2.5 1.0 1.0 257 156 67 55,466 109 102
PFH 83-6 65 67 92 2.0 1.5 1.5 1.0 283 171 67 55,149 108 102
XL 678 (CK1) 78 71 94 2.5 2.0 1.0 1.0 266 144 63 50,849 100 94
¥x«n19¸¹ (CK2) 63 66 91 1.0 1.0 1.0 1.5 234 126 68 54,188 107 100
LSD (0.05) 4,775

a/ ¦¬³Î´Á¡G¦Pªí2.¡C

ªí4.¡@«C³Î¥É¦Ì·s«~¨t¤ñ¸û¸ÕÅç¹AÃÀ©Êª¬¤ÎÂA¯ó²£¶q¡]1995¡A¬î§@¡^
Table 4. The agronomic characteristics and fresh weight of newly developed forage corn hybrids in yield trial (Fall crop, 1995).
«~¨t
Hybrid
¶}ªá´Á
Days to
tassel
(day)
¦Rµ·´Á
Days
to silk
(day)
¦¬³Î´Áa/
Days to harvest
(day)
¸­´³¯f
Leaf blight
(class)
ùׯf
Rust
(class)
²ô»G¯f
Stalk rot
(class)
­Ë¥ñ©Ê
Lodging
(%)
®è°ª
Plant height
(cm)
ÁJ¦ì°ª
Ear height
(cm)
ÂAÁJ­«¤ñ
Ear weight ratio
(¢H)
²Ê³J¥Õ½è
Crude protein
(¢H)
Á`¥i®ø¤Æ
¾i¤À¤ñ
TDN
(¢H)
ÂA¯ó²£¶q
Fresh Weight
(kg/ha)
«ü¼Æ
Index (¢H)
°®¯ó²£¶q
Dry Weight
(kg/ha)
«ü¼Æ
Index (¢H)
(CK1) (CK2) (CK1) (CK2)
PFH 83-9 54 56 87 1 1 1 1 283 164 30.3 7.8 65 68,688 120 113 15,680 117 102
PFH 83-1 54 56 87 1 2 1 1 278 159 29.2 8.2 65 64,204 112 106 15,381 115 100
PFH 83-12 56 58 86 1 2 2 1 292 153 28.8 8.0 64 63,750 112 105 14,955 111 97
PFH 83-5 58 60 87 1 2 1 1 274 155 27.3 7.1 63 61,907 108 102 15,835 118 103
PFH 83-4 53 56 86 1 2 1 1 282 137 24.9 8.4 67 60,677 106 100 15,022 112 98
PFH 83-6 53 56 83 2 1 1 2 264 151 30.6 8.1 66 58,641 103 97 14,304 107 93
XL 678(CK1) 63 65 91 2 2 1 1 245 155 19.6 7.1 63 57,110 100 94 13,421 100 87
¥x«n19¸¹(CK2) 54 56 86 1 1 1 1 230 127 31.6 8.0 65 60,610 106 100 15,371 115 100
LSD (0.05) 5,014 220

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¤T¡B·s«~¨t¤ñ¸û¸ÕÅç¡G

¡@¡@·s«~¨t¤ñ¸û¸ÕÅçµ²ªG¦C¦pªí4¡A¤½³¼ÂA¯ó²£¶q¥HPFH 83-9¤§68,688¤½¤ç³Ì°ª¡A¸ûXL 678¤Î¥x«n19¸¹¤À§O¼W²£20¢H¤Î13¢H¡A¨Ã¹FÅãµÛ©Ê®t²§¡CPFH 83-1¥H64,204¤½¤ç©~¦¸¡CÂAÁJ­«¤ñPFH 83-9¤ÎPFH 83-1¤À§O¬°30.3¢H¤Î29.2¢H¡A¤¶©ó¤G¹ï·Ó«~ºØ¤§¶¡¡C¤½³¼°®¯ó²£¶qPFH 83-9¬°15,680¤½¤ç¡APFH 83-1¬°15,381¤½¤ç¡A»P¥x«n19¸¹¬Ûªñ¡A¦ý¤ñXL 678¼W²£15¡ã17¢H¡AÁ`¥i®ø¤Æ¾i¥÷¤ñ¡]TDN¢H¡^¡APFH 83-9¤ÎPFH 83-1¦P¬°65¢H¡A²Ê³J¥Õ½è§t¶q«h¤À§O¬°7.8¢H¤Î8.2¢H¡C¨âªÌ¤§¦¬³Î´Á¦P¬°87¤Ñ»P¥x«n19¸¹¬Ûªñ¡A¦ý¤ñXL678¦­4¤Ñ¡CPFH 83-9¸­´³¯f¡Bùׯf¡B²ô»G¯f¤Î­Ë¥ñ©Êµ¥¯Å§¡¬°1¯Å¡A¦ÓPFH 83-1°£ùׯf¬°2¯Å¥~¡A¨ä¾l¸­´³¯f¡B²ô»G¯f¤Î­Ë¥ñ©Ê¥ç¦P¬°1¯Å¡C

¡@¡@ºî¤W­z¯S®íµ²¦X¤OÀË©w¤Î·s«~¨t¤ñ¸û¸ÕÅçµ²ªG¡AÅã¥ÜPFH 83-9¤ÎPFH 83-1¤G«~¨t¤§ÂA¯ó²£¶q°ª¥Bí©w¡AÀç¾i­È°ª¡A§Üùׯf¡B¸­´³¯f¤Î­Ë¥ñ©Ê¨Î¡C¦]¦¹¡A¤G«~¨t¦Û85¦~¬K§@°_°Ñ¥[¥þ¬Ù©Ê°Ï°ì¸ÕÅç¡C

¥|¡B·s«~¨t¥þ¬Ù©Ê°Ï°ì¸ÕÅç¡G

¡@¡@·s«~¨t¨â¦~¡]85¦~¬K§@¡ã86¦~¬î§@¡^¥þ¬Ù©Ê°Ï°ì¸ÕÅçµ²ªG¡A¦U«~¨t¤§¹AÃÀ©Êª¬¤ÎÂA¯ó²£¶q´Á§@¥­§¡¦C¦pªí5¡A PFH 83-9¥­§¡¤½³¼ÂA¯ó²£¶q¦b50,778¤½¤ç¡ã62,807¤½¤ç¤§¶¡¡Aªí²{³Ì¨Î¡A¸û¥x¹A1¸¹¤ÎXL 678¤À§O¼W²£15¢H¡ã29¢H»P1¢H¡ã9¢H¡A¥ç¤ñ¥x«n19¸¹¤Î¥x¹A3¸¹¦U¼W²£15¢H¤Î9¢H¡C­Ë¥ñ²v0.0¢H¡ã0.9¢H¡A¤¶©ó¥x¹A1¸¹¤ÎXL 678¤§¶¡¡C¶}ªá´Á53.7¤Ñ¡ã68.5¤Ñ¡A¤ñ¥x¹A1¸¹±ß1¡ã2¤Ñ¡A¸ûXL 678¦­2¡ã3¤Ñ¡A¦Ó»P¥x¹A3¸¹¤Î¥x«n19¸¹¬Ûªñ¡C¥­§¡®è°ª¤ñ¥x¹A1¸¹¤ÎXL 678°ª¬ù2¡ã10¤½¤À¡A¸û¥x«n19¸¹°ª33¤½¤À¡A¦Ó»P¥x¹A3¸¹¬Ûªñ¡A¥­§¡ÁJ¦ì°ª¤ñ¥x¹A1¸¹°ª11¡ã15¤½¤À¡A»PXL 678¬Ûªñ¡A¤ñ¥x«n19¸¹¤Î¥x¹A3¸¹¤À§O°ª¬ù21¤½¤À¤Î9¤½¤À¡C

¤­¡B®è°ª¡BÁJ¦ì°ª¤ÎÂA¯ó²£¶qí©w©Ê¤ÀªR¡G

¡@¡@°Ñ¥[¥þ¬Ù©Ê°Ï°ì¸ÕÅç©¡º¡¤G¦~«~¨tPFH 83-1¡BPFH 83-9¡B¥x¹A1¸¹¤ÎXL 678¤§®è°ª¡BÁJ¦ì°ª¤ÎÂA¯ó²£¶qí©w©Ê¤ÀªRµ²ªG¦C¦pªí6¡APFH 83-9¤§®è°ª¡BÁJ¦ì°ª¤ÎÂA¯ó²£¶qí©w©Ê¦ô­È¤À§O¬°1.01¡B1.08¤Î1.05¡A§¡ªñ©ó1.0¡A¨Ã¹F·¥ÅãµÛ©Ê¤ô·Ç¡AÅã¥ÜPFH 83-9¤§®è°ª¡BÁJ¦ì°ª¤ÎÂA¯ó²£¶qí©w©Ê¨Î¡C

¤»¡B·s«~¨t¬î¸Ì§@¦a¤è¸ÕÅç¡G

¡@¡@¥»¸ÕÅç¥Øªº¡A¦bÁA¸ÑPFH 83-9¤_¬î¸Ì§@®â°ö¤§¾AÀ³©Ê¡AÂǨѱÀ¼s®â°ö¤§°Ñ¦Ò¡C¸ÕÅçµ²ªG¦C¦pªí7¡APFH 83-9¤§¶}ªá´Á¡B¦Rµ·´Á¤Î¦¬³Î´Á¤À§O¬°57¤Ñ¡B59¤Ñ ¤Î90¤Ñ ¡A»P¥x¹A3¸¹¬Û¦P¡A¦ý¸û¥x«n19¸¹¦­1¡ã2¤Ñ¡Cùׯf¤Î¸­´³¯fµ¥¯Å»P¥x¹A3¸¹¬Û¦P¡A²ô»G¯f¬°2¯Å¡C®è°ª¤ÎÁJ¦ì°ª»P¥x¹A3¸¹¬Ûªñ¡A¦ý¤ñ¥x«n19¸¹¤À§O°ª¬ù31¤½¤À¤Î15¤½¤À¡AÂAÁJ­«¤ñ¤ÎÁ`¥i®ø¤Æ¾i¤À¤ñ¡]TDN¢H¡^¥ç¸û¨â¹ï·Ó«~ºØ°ª¡CPFH 83-9¤½³¼ÂA¯ó¤Î°®¯ó²£¶q¤À§O¬°57,735¤½¤ç¤Î14,972¤½¤ç¡A¤ñ¨â¹ï·Ó«~ºØ¤À§O¼W²£10¡ã11¢H¤Î7¡ã8¢H¡A¨Ã»P¨â«~ºØ¤§®t²§¹FÅãµÛ¡C

¤C¡B´áªÎ¤Î®â°ö±K«×¸ÕÅç¡G

¡@¡@´áªÎ¤Î®â°ö±K«×¸ÕÅçµ²ªG¦C¦pªí8¡A PFH 83-9ÂA¯ó²£¶q¦b¤£¦P´áªÎ¥Î¶q¤U¡A¦U®â°ö±K«×³B²z¥H¤½³¼´áªÎ¥Î¶q200¤½¤ç¤Î250¤½¤ç¤§ÂA¯ó²£¶q¤À§O¹F54,407¤½¤ç¡ã56,168¤½¤ç¤Î54,484¤½¤ç¡ã57,189¤½¤ç³Ì°ª¡CÂA¯ó²£¶q¦b¤£¦P®â°ö±K«×¤U¡A¦U´áªÎ¥Î¶q³B²z«h¥H¤½³¼63,492®è¤§²£¶q55,563¤½¤ç¡ã57,189¤½¤ç³Ì°ª¡CÁJ¦ì°ª«h¦³ÀH®â°ö±K«×¼W¥[¦Ó§e¼W°ª¤§ÁͶաA¦ý¨ä¹ï´áªÎ¤ÏÀ³«hµL©úÅãÁͶաC®è°ª¦b¤TºØ¤£¦P´áªÎ¥Î¶q¤Î®â°ö±K«×¤U§¡µL©úÅã¤ÏÀ³¡C¦]¦¹¡APFH 83-9¾A©y¤§¤½³¼®â°ö®è¼Æ¤Î´áªÎ¥Î¶q«ØÄ³¤À§O¬°63,492®è»P150¤½¤ç¡ã200¤½¤ç¡C

¤K¡B§Ü¯fÂΩÊÀË©w¡G

¡@¡@§Ü¯fÂΩÊÀË©w¥Øªº¡A¦bÁA¸ÑPFH 83-9¹ï¥É¦Ì­«­n¯fÂή`¥]¬AÅSµß¯f¡]Peronosclerospora sacchari¡^¡B²ô»G¯f¡]Pythium aphanidermatum¡^¡B¯f¬r¯f¡]MDMV-B¡^¡B´¶³q«¬ùׯf¡]Puccinia sorghi¡^¡B«n¤è«¬ùׯf¡]P. polysora¡^¤Î¥É¦Ì¿Á¡]Ostrinia furnacalis¡^¤§§Ü·P©Ê¤ÏÀ³¡AÂǨѨ¾ªv¤W­z¯fÂή`¤§°Ñ¦Ò¡C§Ü¯fÂΩÊÀË©wµ²ªG¦C¦pªí9¡A¥ÑªíÅã¥ÜPFH 83-9¹ïÅSµß¯fÄݱj§Ü¡A¹ï²ô»G¯f¤Î¥®­]´Á´¶³q«¬ùׯfÄݧܡA¹ï¯f¬r¯f¡B¦¨®è´Á´¶³q«¬ùׯf¡B«n¤è«¬ùׯf¡]¥]¬A¥®­]´Á¤Î¦¨®è´Á¡^¤Î½ü¥Í´Á¿Á®`§¡Äݤ¤§Ü¡C¦Ó¹ï¶}ªá´Á¿Á

ªí5.¡@«C³Î¥É¦Ì·s«~¨t°Ï°ì¸ÕÅç¦U«~¨t¤§¹AÃÀ©Êª¬¤ÎÂA¯ó²£¶q¡]´Á§@¥­§¡¡^¡]1996¡A¬K§@¡ã1999¡A¬î§@¡^
Table 5. The average agronomic characteristics and fresh weight of newly developed forage corn hybrids each crop season in islandwide regional trial (Spring crop, 1996 ¡Ð Fall crop, 1997).
85¦~¬K§@¡]Spring crop, 1996¡^ 85¦~¬î§@¡]Fall crop, 1996¡^
«~ ¨t
Hybrid
¶}ªá´Á
Days to tassel (day)
®è°ª
Plant height (cm)
ÁJ¦ì°ª
Ear height (cm)
­Ë¥ñ²v
Lodging
(¢H)
ÂA¯ó²£¶q
Fresh weight (kg/ha)
«ü¼ÆIndex (¢H) «~ ¨t
Hybrid
¶}ªá´Á
Days to tassel (day)
®è°ª
Plant height (cm)
ÁJ¦ì°ª
Ear height (cm)
­Ë¥ñ²v
Lodging
(¢H)
ÂA¯ó²£¶q
Fresh weight (kg/ha)
«ü¼ÆIndex (¢H)
(CK1) (CK2) (CK1) (CK2)
PFH 83-1 68.6 241.7 131.5 1.8a 56,148ab 122 105 PFH 83-1 53.9 250.0 123.0 2.0a 49,074a 117 98
PFH 83-9 68.5 234.5 135.4 0.9b 57,603a 125 107 PFH 83-9 53.7 239.0 125.0 0.9b 50,778a 121 101
TAFH 83-13 68.4 237.8 128.5 0.2c 54,773ab 119 102 TAFH 83-13 52.2 230.0 110.0 0.1c 47,798a 114 95
TAFH 83-14 69.5 228.6 126.2 0.6bc 52,470b 114 98 TAFH 83-14 52.8 238.0 110.0 0.0c 49,161a 117 98
¥x¹A1¸¹(CK1) 67.5 228.1 120.2 0.0c 45,939c 100 86 ¥x¹A1¸¹(CK1) 51.8 229.0 111.0 0.0c 41,887b 100 83
XL 678(CK1) 72.0 230.3 137.0 0.0c 53,596ab 117 100 XL 678(CK1) 56.7 229.0 130.0 1.1b 50,242a 119 100
86¦~¬K§@¡]Spring crop, 1997¡^ 86¦~¬î§@¡]Fall crop, 1997¡^
«~ ¨t
Hybrid
¶}ªá´Á
Days to tassel (day)
®è°ª
Plant height (cm)
ÁJ¦ì°ª
Ear height (cm)
­Ë¥ñ²v
Lodging
(¢H)
ÂA¯ó²£¶q
Fresh weight (kg/ha)
«ü¼ÆIndex (¢H) «~ ¨t
Hybrid
¶}ªá´Á
Days to tassel (day)
®è°ª
Plant height (cm)
ÁJ¦ì°ª
Ear height (cm)
­Ë¥ñ²v
Lodging
(¢H)
ÂA¯ó²£¶q
Fresh weight (kg/ha)
«ü¼ÆIndex (¢H)
(CK1) (CK2) (CK1) (CK2)
PFH 83-1 60.6 246.0 131.0 1.5ab 61,432a 126 105 PFH 85-17 59.2 228.0 113.0 0.0c 54,377ab 108 102
PFH 83-9 61.1 237.0 133.0 1.0b 62,807a 129 107 PFH 83-9 58.9 240.0 125.0 0.0c 57,600a 115 109
TAFH 84-7 61.9 222.0 115.0 1.6a 51,613b 105 88 TAFH 85-2 59.1 239.0 120.0 6.4b 53,294b 106 100
TAFH 84-12 59.9 242.0 126.0 0.3c 58,168a 119 99 TAFH 85-8 60.5 254.0 145.0 31.1a 51,532b 102 97
¥x¹A1¸¹(CK1) 60.3 235.0 122.0 0.9b 48,821b 100 83 ¥x«n19¸¹(CK1) 59.9 207.0 104.0 0.3c 50,130b 100 94
XL 678(CK1) 63.9 234.0 132.0 0.3c 58,550a 119 100 ¥x¹A3¸¹(CK1) 58.9 237.0 116.0 1.3c 52,897b 105 100

Means within each column followed by same letter insignificantly different at 0.05 probability leve (DMRT).

®`Äݱj·P¡A¤£¨ã§Ü©Ê¡C¥À¥»¹ï²ô»G¯f¡B¯f¬r¯f¡B«n¤è«¬ùׯf¤Î¶}ªá´Á¿Á®`ÄÝ·P¤£¨ã§Ü©Ê¡A¦Ó¤÷¥»«h¹ïÅSµß¯f¡B¯f¬r¯f¤Î¥É¦Ì¿Á¡]¥]¬A¥®­]´Á¤Î¶}ªá´Á¡^ÄÝ·P¡A¤£¨ã§Ü©Ê¡C

ªí6. «C³Î¥É¦Ì·s«~¨t°Ï°ì¸ÕÅç®è°ª¡BÁJ¦ì°ª¡BÂA¯ó²£¶q¥­§¡­È¤Î¨äí©w©Ê¦ô­È¡]1996¡A¬K§@¡ã1997¡A¬K§@¡^
Table 6. Plant height, ear height, fresh weight and stability index of newly developed forage corn hybrids in the islandwide regional trial (Spring crop, 1996 ¢w Spring crop, 1997).
«~ ¨t
Hybrid
®è °ª
Plant height
ÁJ¦ì°ª
Ear height
ÂA¯ó²£¶q
Fresh weight
¥­§¡­È
Ave. Value (cm)
í©w©Ê¦ô­È
Stability Index (bi)
¾÷²v­È
P>F(b+1)
¥­§¡­È
Ave.Value
(cm)
í©w©Ê¦ô­È
Stability Index(bi)
¾÷²v­È
P>F(b+1)
¥­§¡­ÈAve.Value (cm) í©w©Ê¦ô­È
Stability Index (bi)
¾÷²v­È
P>F(b+1)
PFH 83-1 246.3a 1.06** 0.003 129.2c 0.96** 0.115 55,460b 1.10** 0.006
PFH 83-9 237.4b 1.01** 0.000 131.5b 1.08** 0.000 57,056a 1.05** 0.000
¥x¹A1¸¹(CK1) 231.2d 0.84* 0.000 118.1d 0.81* 0.000 45,551c 0.94** 0.000
XL 678(CK1) 233.5cd 1.08** 0.001 133.5a 1.05 0.003 54,251b 0.91** 0.127

Means within each column followed by same letter insignificantly different at 0.05 probability level (DMRT).

*¡GSignificantly different at 0.05 probability level.

**¡GSignificantly different at 0.01 probability level.

ªí7.¡@«C³Î¥É¦Ì·s«~¨tPFH 83-9¬î¸Ì§@¦a¤è¸ÕÅ礧¹AÃÀ©Êª¬¤ÎÂA¯ó²£¶q¡]1997¡A¬î¸Ì§@¡^
Table 7. The agronomic characteristjcs and fresh weight of newly developed forage corn hybrids in yield trial of late fall crop (Late fall crop, 1997).
«~ ¨tHybrid ¶}ªá´Á
Days to
tassel
(day)
¦Rµ·´Á
Days to
Silk
(day)
¦¬³Î´Áa/
Days to
harvest
(day)
ùׯf
Rust
(class)
¸­´³¯f
Leaf
blight
(class)
²ô»G¯f
Stalk rot
(class)
­Ë¥ñ©Ê
Lodging
(¢H)
®è°ª
Plant
height
(cm)
PFH 83-9 57 59 90 1 2 2 1 255
¥x«n19¸¹(CK1) 58 60 92 1 1 1 2 224
¥x¹A3¸¹(CK2) 57 59 90 1 2 1 1 254
LSD (0.05)
«~ ¨tHybrid ÁJ¦ì°ª
Ear height
(cm)
ÂAÁJ­«¤ñ
Ear weight
ratio (¢H)
Á`¥i®ø¤Æ
¾i¤À¤ñ
TDN (¢H)
ÂA¯ó²£¶q
Fresh weight
(kg/ha)
«ü¼ÆIndex (¢H) °®¯ó²£¶q
Dry weight
(kg/ha)
«ü¼ÆIndex (¢H)
(CK1) (CK2) (CK1) (CK2)
PFH 83-9 130 26.6 68 57,735 110 111 14,972 107 108
¥x«n19¸¹(CK1) 115 26.1 67 52,427 100 101 14,018 100 101
¥x¹A3¸¹(CK2) 128 25.9 67 51,874 99 100 13,864 99 100
LSD (0.05) 2,036

a/ ¦¬³Î´Á¡G¦Pªí2.

ªí8.¡@´áªÎ¤Î®â°ö±K«×¹ï«C³Î¥É¦Ì·s«~¨tPFH 83-9¤§®è°ª¡BÁJ¦ì°ª¤ÎÂA¯ó²£¶q¼vÅT¡]1998¡A¬î§@¡^
Table 8. Effect of nitrogen rate and plant density on plant height, ear height and fresh weight of newly developed forage corn hybrid PFH 83-9 (Fall crop, 1998).
¤½³¼®è¼Æ
No. plant
per hectare
N1 (150 kg/ha) N2 (200 kg/ha) N3 (250 kg/ha)
®è°ª
Plant height (cm)
ÁJ¦ì°ª
Ear height (cm)
ÂA¯ó²£¶q
Fresh weight (kg/ha)
®è°ª
Plant height (cm)
ÁJ¦ì°ª
Ear height (cm)
ÂA¯ó²£¶q
Fresh weight (kg/ha)
®è°ª
Plant height (cm)
ÁJ¦ì°ª
Ear height (cm)
ÂA¯ó²£¶q
Fresh weight (kg/ha)
74,074 264 149 52,821 268 146 55,341 270 157 55,699
63,492 266 147 55,563 267 145 56,168 269 149 57,189
55,555 271 151 53,596 265 144 54,407 268 143 54,484

¦P´á¯À¤£¦P®â°ö±K«×¤U¡A®è°ª¡BÁJ¦ì°ª¤ÎÂA¯ó²£¶q¤§LSD (5¢H) ¤À§O¬°¡G5.04¡B3.34¡B801.95¡C

¤£¦P´á¯À¦P®â°ö±K«×¤U¡A®è°ª¡BÁJ¦ì°ª¤ÎÂA¯ó²£¶q¤§LSD (5¢H) ¤À§O¬°¡G4.53¡B2.51¡B723.94¡C

ªí9.¡@«C³Î¥É¦Ì·s«~¨tPFH 83-9¤Î¨ä¿Ë¥»¹ï¥É¦Ì­«­n¯fÂή`§Ü©ÊÀË©w
Table 9. The test reactions of newly developed forage corn hybrid PFH 83-9 and its parental lines to serious disease and insect pests.
«~ºØ©Î«~¨t
Hybrid or line
ÅSµß¯f
Peronosclerospora
sacchari

(¢H)
²ô»G¯f
Pythium
aphanidermatum

(¢H)
¯f¬r¯f
(MDMV-B)
(¢H)
´¶³q«¬ùׯf
Puccinia sorghi
«n¤è«¬ùׯf
P. polysora
¥É¦Ì¿Á
Ostrinia furnacalis
¥®­]´Á
Seedling
stage
(class)
¦¨®è´Á
Mature
stage
(class)
¥®­]´Á
Seed
lingstage
(class)
¦¨®è´Á
Mature
stage
(class)
½ü¥Í´Á
Whorl
stage
(class)
¶}ªá´Á
Pollen Shedding stage (No. cavities/plant)
PFH 83-9 1.0 10.9 23.9 2 3 3 3 3.2 55.6
P-1212 (¥À¥») 3.6 52.3 53.9 2 2 3 4 3.3 32.7
CI-8122 (¤÷¥») 36.5 3.6 83.2 1 1 2 2 4.3 38.9
¥x«n19¸¹ 1.3 2.9 17.7 1 1 3 3 3.6 33.1
¥x¹A1¸¹ ¡Ð* 20.7 73.5 2 2 5 5 3.0 22.6
¥x¹A3¸¹ ¡Ð* ¡Ð ¡Ð 2 3 3 4 ¡Ð ¡Ð

¡¯¡Gªí¥Ü¥¼ÀË©w¡C

¤E¡B¦¨®èÀç¾i¦¨¤À¤ÀªR¡G

¡@¡@¦¨®èÀç¾i¦¨¤À¤ÀªRµ²ªG¦C¦pªí10¡APFH 83-9°£¥i·»©ÊºÒ¤ô¤Æ¦Xª«¬°10.68¢H¡A¤ñ¥x«n19¸¹¤Î¥x¹A3¸¹°ª¥~¡A¨ä¾l²Ê³J¥Õ½è8.10¢H¡B²ÊÅÖºû28.4¢H¡B²Ê¯×ªÕ3.61¢H¡B¦Ç¤À4.25¢H¡B¶t0.42¢H¡BÁâ0.23¢H¤Î¹[1.34¢H§¡»P¨â¹ï·Ó«~ºØ¬Ûªñ¡C

¤Q¡B«C¶J«~½è¤ÀªR¡G

¡@¡@«C³Î¥É¦Ì°£¥i°µ¬°¨Å¤û«C¹}®Æ¥~¡A¥ç¥i¸g±K«ÊÃæ»Ã«á»s¦¨«C¶J®Æ¡C¦]¦¹«C¶J«~½è¤§¨}æÕ¬Û·í­«­n¡C«C¶J«~½è¤ÀªRµ²ªG¦C¦pªí11¡APFH 83-9¤§pH­È3.76¡B¤A»Ä0.27¢H¡B¨Å»Ä0.78%¡A¨äFlieg¤óµû¤ÀÂI¬°90.7¡A»P¥x«n19¸¹¤Î¥x¹A1¸¹¦PÄÝÀu¨}µ¥¯Å¡C

¤Q¤@¡B²ôµzµw«×´ú¸Õ¡G

¡@¡@«C³Î¥É¦Ì²ôµz¬O§_±jµw¡AÃö«Y¥É¦Ì¦¨¼ô«á´Ó®è¬O§_·|­Ë¥ñ©Î­Ë§é¡A­Õ¦¨¼ô´Ó®è©ö­Ë¥ñ©Î­Ë§é¡A«hµLªk°t¦X¾÷±ñ±Ä¦¬¡C¦]¦¹´Ó®è²ôµz±j«×¦Ü¬°­«­n¡C²ôµzµw«×´ú¸Õµ²ªG¦C¦pªí12¡Aµ²ªGÅã¥Ü¬ï¨ëPFH 83-9²ôµz©Ò»Ý­«¶q¬°6.29 kg/cm2¡A¸û¥x«n19¸¹¤§5.83 kg/cm2¤Î¥x¹A3¸¹¤§6.18kg/cm2¬°°ª¡A¨Ã»P¨â«~ºØ§eÅãµÛ©Ê®t²§¡AÅã¥ÜPFH 83-9²ôµzµw«×±j¡C

ªí10.¡@«C³Î¥É¦Ì·s«~¨tPFH 83-9¦¨®èÀç¾i¦¨¤À¤ÀªR¡]1998¡A¬î§@¡^
Table 10. Nutrition compositions in mature plants of newly developed forage corn hybrid PFH 83-9 (Fall crop, 1998).
«~ ºØ Hybrid ²Ê³J¥Õ½è
Crude Protein (¢H)
²ÊÅÖºû
Crude fibre (¢H)
²Ê¯×ªÕ
Crude fat
(¢H)
¥i·»©ÊºÒ¤ô¤Æ¦Xª«
Soluble carbohydrate (¢H)
¦Ç¤À
(Ash)
(¢H)
»Ä¬~
ÅÖºû
(ADF)
(¢H)
¤¤¬~
ÅÖºû
(NDF)
(¢H)
¶tCa
(¢H)
ÁâMg
(¢H)
¹[K
(¢H)
PFH 83-9 8.10 28.4 3.61 10.68 4.25 34.3 64.4 0.42 0.23 1.34
¥x«n19¸¹(CK1) 8.12 28.6 3.90 9.80 4.10 34.5 71.4 0.44 0.25 1.38
¥x¹A3¸¹(CK1) 8.18 29.3 3.58 9.95 4.42 35.2 65.0 0.42 0.24 1.41
ªí11.¡@«C³Î¥É¦Ì·s«~¨tPFH 83-9«C¶J«~½è¤ÀªR¡]1998¡A¬î§@¡^
Table 11. Silage quality of newly developed forage corn hybrid PFH 83-9 (Fall crop, 1998).
«~ ºØ
Hybrid
PH­Èa/
pH value
¤A»Äb/
(¢H)
¨Å»Äb/
Latic acid (¢H)
Flieg¤óµû¤ÀÂIc/
(Flieg¡¦s point)
PFH 83-9 3.76 0.27 0.78 90.7
¥x«n19¸¹ (CK1) 3.71 0.31 0.84 90.5
¥x¹A3¸¹ (CK1) 3.79 0.28 0.75 89.3

a/ pH­È·U§C·U¨Î¡AÀu¨}«C¶J®ÆpH­È¬°3.7¡ã4.0¢H¡C

b/ ¤A»Ä·U¤Ö·U¦n¡A¨Å»Ä·U¦h·U¦n¡C

c/ µû¤ÀÂI¨Ì·ÓFlieg¤ó¤§¤À¯Å¡G

0¡Ð20¤À¡A¦H¡]Failure¡^¡C

21¡Ð40¤À¡A¤£¨}¡]Poor¡^¡C

41¡Ð60¤À¡A¥i¡]Satisfactory¡^¡C

61¡Ð80¤À¡A¦n¡]Good¡^¡C

81¡Ð100¤À¡AÀu¨}¡]Very good¡^¡C

ªí12.¡@«C³Î¥É¦Ì·s«~¨tPFH 83-9²ôµzµw«×´ú¸Õ¡]1998¡A¬î§@¡^
Table 12. The strength test on the stalk quality of newly developed forage corn hybrid PFH 83-9 (Fall crop, 1998).
«~ ºØ
Hybrid
½Õ¬d®è¼Æ
No. plant tested
²ôµzµw«×
Stalk strength (kg/cm2)
¢¹ ¢º ¢» ¢¼ ¢½ ¢¾ ¥­§¡
PFH 83-9 48 6.36 6.36 6.23 6.28 6.32 6.22 6.29a
¥x«n19¸¹ (CK1) 48 5.84 5.88 5.85 5.79 5.88 5.77 5.83c
¥x¹A3¸¹ (CK2) 48 6.13 6.14 6.18 6.23 6.20 6.22 6.18b

Means within same column followed by same letter insignificantly at 0.05 probability level (DMRT).

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¤Þ¥Î¤åÄm

  1. ¥xÆW¬Ù¬F©²¹AªLÆU¡C1989¡CÂøÂ³§@ª«¨|ºØµ{§Ç¤Î¹ê¬I¤èªk¡C

  2. ¥xÆW¬Ù¬F©²¹AªLÆU¡C1999¡C¹A±¡³ø¾É¡]¤­¤ë¡^¡C

  3. ³\ºÖ¬P¡B¬x°ê·½¡B§õ°ê­s¡B®}ªü¨½¡C1987¡C«C³Î¥É¦Ì¤£¦P¦¨¼ô´Á«C³Î²£¶q¤ÎÀç¾i¦¨¤ÀÅܤơC¤¤µØ¹A¾Ç·|³ø ·s 139¡G44¡ã45¡C

  4. ¿c±Ò«H¡C1990¡Cªª¯ó«C¶J½Õ»s¡C¥xÆW¬Ù¯b²£¸ÕÅç©Ò±M¿è²Ä3¸¹ 153¡ã158¡C

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Breeding of Forage Corn Hybrid Tainan No. 21

Tseng, C. T. and C. K. Chen

Summary

¡@¡@Tainan No. 21 is a single cross forage corn hybrid. It was coded as PFH 83-9 before registration. Its pedigree is P-1212¡ÑCI-8122. The maternal line P-1212 was bred from Pioneer 3208 introduced from Pioneer Seed Company in the United Sates. It is endowed with pale yellow semiflint kernel. P-1212 is also characterizied with highly resistance to downy mildew Peronosclerospora sacchari and moderate resistances to common rust disease Puccinia sorghi and whorl stage corn borer Ostrinia furnacalis feeding damage. The paternal line CI-8122 was derived from a composite Mcy-51 introduced from CIMMYT. It is characterized with white dent kernel and highly resistance to stalk rot Pythium aphanidermatum and rust disease (P. sorghi and P. polysora) and moderate resistances to downy mildew P. sacchari. Since being selected out in fall crop of 1995 PFH 83-9 was recommended to participate in islandwide yield trial for newly developed forage corn hybrids, effect test on nitrogen rate and plant density, resitant test to major economic important disease and insect pests, stalk quality test as well as chemical analysis for nutrition composition in mature plant and silage quality. The data collected from above tests indicated that PFH 83-9 is characterized with stable high-yielding ability, resistance to downy mildew, stalk rot, rust disease, corn borer feeding damage in whorl stage and lodging, it is also possessed with high nutrition in mature stage of plant development and good silage quality. These revealed that PFH 83-9 could be adopted for cultivating in eastern part area as well as Yu-Chia-Nan area in the country and used as feed for dairy cattle industry. After being evaluated by the meeting of the Registration Committee for new crop cultivar convened by the Department of Agriculture and Forestry, Taiwan provincial Government PFH 83-9 was officially named as Tainan No. 21 on May 18, 1999. The proper plant density for Tainan No. 21 is 66,666 plants per hectare, the recommended amount of N¡BP2O5¡BK5O per hectare is 150-200 kg¡B90 kg and 60 kg, respectively.

¡@¡@Key words: forage corn, fresh weight, combing ability test, disease and insect pest resistance. lodging resistance, silage quality.

¡@¡@Accepted for publication: August 30, 1999.



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