Proceedings of the Fifth Asian Regional Maize Workshop - Search ...

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* Yield potential of 8.0 t/ha. II. Hybrid Bioseed 9754 has shown good performance in the SOUth as well as in the Central part of the country. The salient features of this hybrid are: * Medium-late maturity tropical hybrid. * Yellow shiny orange flint kernels. * Tolerant to foliar diseases. * Uniform and long cobs. * Yield potential of 10.0 t/ha. Bioseed is in the process of promoting new hybrids to replace the present 9670 and 9754 hybrids. The new hybrids are expected to perform much better and would be tolerant to foliar diseases. The yields are also expected to be higher than the presently commercial hybrids. Table 3. H. maydistolerance of Lancaster and Stiff Stalk group lines. Lancaster H. maydis Stiff Stalk H. maydis Group score group score Y 1'51 6 SS1 4 NS2 5 SS2 2 1'53 6 SS3 4 NS4 6 SS4 4 1'55 6 SS5 4 !I 1 = highly susceptible and 9 = resistant. Table 4. Reaction to H. maydis - CIMMYT corn materials received from Thailand. Pedigree H. maydis score y Viemyt 49 (HS) Bramyt 22 (HS) SW3C4 NS1 Advanced 1ines - Pop. 31 Advanced lines - Pop. 145 Advanced lines - Pop. 345 Pop. 28 (HS)-Bulk Pop. 32 (HS)-Bul k Pop. 145 (HS)-Bulk Pop. 345 (HS)-Bulk EEY x RPP-F1 -Bulk Stalk Rot resistant-Bulk Pop. 26-Bul k Pop. 45-Bu1k Pop. 33-Bulk Pop. 48-Bu1k Pool 39-Bulk Pool 41-Bulk 6 6 7 6 5 6 7 7 6 6 7 6 4 7 6 5 3 3 3 !I 1 = highly susceptible and 9 = resistant. 240
In line with Bioseed's philosophy, we stand for performance difference. We are committed to Vietnam's agriculture in general, and to the farmers growing maize in particular, by introducing and making available to them better quality hybrids tolerant to diseases, adapted to different ecological zones and cropping patters in the country and giving maximum importance to yield and maturity. 241
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Proceedings of the Fifth Asian Regi
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Page Foreword List of participants
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For several years, the Asian countr
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LAOS MALAYSIA MYANMAR NEPAL PAKISTA
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Chamnan Chutkaew Dept. of Agronomy
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I t· PRIVATE PRIVATE SECTOR: SECTO
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Pioneer Overseas Corp. ProAgro Seed
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MP COP NGOs TK = Muriate of Potash.
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Table 3. Land suitability for maize
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Depending on how this wheat is rele
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Individual field sizes in the GKF a
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Table 12. Demonstration block resul
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alance of composite, synthetics and
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Elias, S.M., F.S. Sikder and J.Ahme
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~IZE ItAIMJ4ENT PRXJW4ME IN IHlf'AN
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3. Low level of soil fertility. Exp
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3. Farmers could not afford to purc
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Table 1. Hybrid maize production in
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100,000 mu (1 ha = 15 mu). Fran 198
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+ The planting area of inbred line
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ty levels. Selection interia should
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Dao13, Oa19, SSE232 etc.). b. combi
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~ZE I~ IN IN>IA - AN OVERVIEW WITH
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inbred 1ines possessing good genera
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Table 3. Details of medium and earl
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increasing the yield levels of the
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Production of ~zygous diploid inbre
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EntQllOlogical research. In the fie
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A 1) OUr coordinated efforts for ma
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Table 1. Maize area harvested, proW
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Table 4. Grain yield of Semar 1 and
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ut they have been selecting ears fr
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MAIZE ~ N«J ~ION IN LAOS. Kanyavon
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to rice in order to reach self-suff
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0\ 0\ ."'0- ~I.u'. u: 0 50 100 STAT
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. According to the findings of the
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IR:EDIIIG IHJ N:RHJotIC RESEAfDI C
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tion with estate or mini-estate typ
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Table 4. MYR grain maize yields ove
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techniques. References Anonymous. 1
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Table 1. Total area under maize and
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Year Township Area planted Total pr
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cover, short plant stature, and sat
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Table 3. Res.Stat. Multilocational
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3. Plant protection: a. Diseases Th
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Questions to the author: FROM: S. K
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were unacceptable in some parts due
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Table 2. CCRI maize hybrid yield tr
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HYBRID MAIZE BREEDlt.G AN> ALH»DII
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of highly productive technologies,
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Maize varietal improvement continue
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Peronosc lerospora phi 1ippinensis
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elow to help clarify the farm level
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Premium Grade (emulsifiable concent
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support. The versatile planter/fert
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Table 1. Climatic conditions in the
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T1l1t:i----------------------------
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the maha season. Yala season is cha
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. Spacing Blackgram Maize 40 em x 5
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Sri Lanka. Ariyanayagam, R. P. 1967
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It took almost 10 years to develop
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g; CUS0 4 (5H 2 0): 0.39 g; NaF: 0.
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3. Making single cnosses: Plant the
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experiments showed that the fertili
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Long term evaluation of mass releas
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Chang, S.C., and Y.Z. Wu. 1976. Pra
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DEVELCHENT OF HYBRID ~ IN THAILAN>
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Table 2. Quantity and value of Thai
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was approved by KU and OOA in 1991
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Table 8. Mean yields of fresh dehus
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4. Prevention and control of aflato
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Table 17. Mean grain yield and agro
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Sittipanuwong, S., C. Chutkaew, A.
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Early rainy season plantings have a
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P. R.CHINA TMilAKD CAMPUCHiA
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In 1992, the hybrid maize acreage i
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organizing visits as well as field
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Table 1 Area, production and yield
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plants per hill) 4. Intercropping e
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VIEl1'W4 YELLOW MAIZE EXRRT: MARKET
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6,------------------~3,5 Producllon
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MAIZE BREEDUG Arnel R. Hallauer-L!
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method was provi ded by Eberhart (1
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can vary by the complexity of inher
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Table 3. Response to selection for
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Table 5. Comparative responses for
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increased response for grain yield.
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Sure Crop (0h43 and C103). several
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Sprague and Tatum (1942) demonstrat
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Horner, E.S., E. Magloi re, and J .
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evaluation are conducted in only on
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Table 1. Maize: Production Unit 100
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Table 3. Maize: Area harvested Unit
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v) Incentives to private sector are
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possible through adoption of suitab
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will be described highlighting thos
Page 196 and 197: will fluctuate. As a general rule,
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Page 200 and 201: Table 4. Possible heterotic partner
Page 202 and 203: use as OPVs and broad based synthet
Page 204 and 205: c. Integrat;on of populat;on ;mprov
Page 206 and 207: Table 8. Announced CIMMYT lines 199
Page 208 and 209: HYBRID MAIZE ~ 1l£ SMALL-SCALE FNI
Page 210 and 211: Table 2. Growth rate of maize area
Page 212 and 213: At the same time that CIMMYT was sh
Page 214 and 215: when grown under farmers' condition
Page 216 and 217: seed often varies substantially bec
Page 218 and 219: kilograms of maize grain that must
Page 220 and 221: Table 8. COst of producing, process
Page 222 and 223: case in which the hybrid replaces a
Page 224 and 225: J i-----1'-_.,-_I........ i M*iIBia
Page 226 and 227: egions which do not allow a suffici
Page 228 and 229: participation; where foreign compan
Page 230 and 231: Wellhausen, E.J. Walden (ed.) 1978.
Page 232 and 233: To recover value, seed companies ca
Page 234 and 235: In recent years, many new companies
Page 236 and 237: nology and its reliance on patents,
Page 238 and 239: Table 6. Intellectual property righ
Page 240 and 241: for crop improvement programs. It i
Page 242 and 243: capabi 1ities Despite these constra
Page 244 and 245: TftNlAlll CAMPUCI-1iA Fig. 1. Seven
Page 248 and 249: CAOOILL MAIZE RESEAFDI ACTIVITIES I
Page 250 and 251: RESEARCH AN> POTENTIAL OF HYBRID (X
Page 252 and 253: ClBA SEEDS IN SJJ11£AST ASIA. Jose
Page 254 and 255: ACTIVIlY OF MAHYOO IN INJIA Rajendr
Page 256 and 257: PACIFIC SEEDS - PlANT ~ FOO ASIA Pe
Page 258 and 259: Questions to the author: FROM: R. S
Page 260 and 261: Just start In 1980 the demonstratio
Page 262 and 263: VOLUME 1000 IQnt/ 10.--------------
Page 264 and 265: (Notes by Dr. V.L. Chidley, Raporte
Page 266: 1. Rhizoctonia leaf and sheath blig
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