Requisites for Maize Seed Agronomy for Maize Seed Production Management of Maize Seed ...

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Requisites for Maize Seed
Agronomy for Maize Seed Production
Management of Maize Seed Productio
II.
Essential Elements for successful
Organization and Operation of a Ba
III.
?f
Evalua~io~ Maize Seed Quality
Seed V1ab1l1ty, Germination and v
Seed Certification - Its RolP ~n~
Centro Internacional de MeJoramlento de Malz y Trigo
Mexlco,D. F. Mexico
International Maize and W ea provement Center
MAIZE SEED WEEK
June 4-8, 1990
TABLE OF CONTENTS FOR HANDOUTS
I.
1. Maize Seed Week Schedule
2. Group Discussion Excercises - Guidelines and
Requisites for Maize Seed
3. Agronomy for Maize Seed Production
4. Management of Maize Seed Production Fields
II.
S. Essential Elements for Successful Seed Programs
6. Organization and Operation of a Basic Seed Program
III.
7. Evaluation of Maize Seed Quality
8. Seed Viability, Germination, and Vigor Tests
9. Seed Certification - Its Role and Essential
Components
IV.
10. Seed Production Systems for Small Farmers-
A Nonconventional Perspective
11. Seed for Small Farmers-Support Infrastructure
12. Seed Production and supply for Farmers in LDC's
13. Practices used by Small Farmers in Selecting and
Maintaining Their Own Seed
v.
14. Post-Harvest Handling of Maize Seeds
15. Seed Drying Principles
16. Cleaning and Conditioning Seeds for Marketing
17. Seed Packaging in the Humid Tropics
18. Precepts of Seed Storage
19. Environmental and Structural Requirements for Seed
Storage
VI.
20. Seedborne Diseases of Maize
21. CIMMYT Seed Health Lecture
22. Seed Health Tests
23. Seed Health Testing in Maize

SEED WEEK SCHEDULE
June 4-8, 1990
Monday June 4
08:30 - 08:45 Introduction to Seed Week Beck Sasakawa
08:45 - 09:45 Agronomic Management of Seed Beck Sasakawa
Production Fields
10:00 - 11:30 Seed Production of OP Varieties Beck Sasakawa
11:30 - 12:30 Seed Production of Hybrids Beck Sasakawa
14:00 - 15:00 Seed Production of Hybrids (cont.) Beck Sasakawa
15:00 - 16:00 Research in Seed Production Beck sasakawa
16:00 - 17:00 Field Inspections Villena Sasakawa
Tuesday June 5
08:30 - 10:00 Essential Elements of a Seed Douglas Sasakawa
Program
10:00 - 11:00 Organization and Operation of Douglas Sasakawa
Basic Seed Production
11:15 - 12:30 Organization and Operation of Douglas Sasakawa
Commercial Seed Production
14:00 - 17:00 Group Discussion Exercise Douglas, Classrooms
Beck, Sasakawa
Villena
Wednesday June 6
08:30 - 09:45 Analysis of Seed Quality Warham Sasakawa
10:00·- 12:30 Practical Laboratory Exercises Douglas, Lab Room 52
on Seed Quality War ham Classroom
114:00 - 15:30 Development of Seed Systems Douglas Sasakawa
Under Small Farmer Situations
115:45 - 17:00 Perspectives on Small Farmer Woolley Sasakawa
Seed Production
Thursday June 7
08:30 - 09:45 Harvesting and Drying Seed Davila Sasakawa
10:00 - 11:30 Principles and Methods of Seed Davila Sasakawa
Conditioning
11:30 - 12:30 Insect Pests in Seed Storage Mihm Sasakawa
-
14:00 15:00 Principles and Methods of Seed Davila Sasakawa
Storage
15:00 - 17:00 Practical Exercises in Seed Davila, Redonda
Conditioning Douglas
Friday June 8
08:30 - 09:30 Diseases in Seed Storage Renfro Pathol. Lab
09:30 - 11:00 Seed Health War ham Auditorium
Seed H. Lab
11:15 - 12:30 Group Discussion Exercise on Douglas, Classrooms
Post-Harvest Handling Davila, Sasakawa
14:00 - 15:00 Group Discussion Exercise on Douglas, Classrooms
Post-Harvest Handling (cont.) Davila, Sasakawa
15:00 - 16:30 Wrap-Up with Emphasis on Putting Douglas, Sasakawa
a Good Seed Program Together Davila,
Beck
GUIDELINES AND REQUISITES FOR MAIZE SEED
Gllll\S Y REQlllSITOS PARA SEMILLAS DE MAIZ (Zea maiz)
A. SEED MUUJrLIC/\TION/MllLTirUC/\CION DE srMlLl/\S
I * r I
I ASPECT nAstc OR FOUNDATION ., FIRST GENERATION (REGISTERED) COMMERCIAL (CERTIFIED)
ASPECTO MADRE (BASlCA) PRIMERA GENERACION * (REGISTRADA) COMERCIAL (CERTIFICADA)
Responsible
for
multi pl fcation
Clase de
product ores
of
o~mership
seed
multiplication
fields
Propietario del
campo de
mu1tipl icaci6n
F1eld
characteristics
for seed
mu 1t i p 1 i ca ti 011
Ca racter ts ti C.il s
de 1 campo
Orf gin of
seed planted
Procedencia
de 1a semi 11 a
Rate of seed
f ncreasP
Volumen de
incremento
de semi 11 a
Preferred
planting
datf'S
Fecl1a de
siembra
preferida
*-fliCTudf'S Slfl!.Jlf' OOSSPS fpr fi\1hrirf'1/J11cl11vr• ios CrllC.flS SPncillos rfllP. fortrtrtrl hibrirlos R0visPrf'.-,folv. lllHI
Guidelines and requisites for maize seed Page 2
Gu1as y requisitos para semillas de ma1z
"5PrCT BJ;S Jc-IT[-FOlJNDAT JON FIRST GfNERATIITfrTJITGISfUffD)
ASPECTO MADRE (BASICA) PRIMERA GfNFR/\C I ON_ { ~L~ ! ~ ~!~!!~!
Distancia de
aislacion
recomendada
ays to glVe
adequate
isolation time
(isolation in
time)
Numero de d1as
para un aisla
miento adecuado
(aislaciOn en
ttemoo
ant populat1on
compared with a
connercia 1 crop
Oensidad de po
blaciOn compara
da con un culti
vo comercial
a1e ana tema1e
planting ratio
for hybrids
Relacion de
siembra de sur
cos hembras y
I I
I
machos (h1bridos) -------•----------------1
Fequency of:
a) roguing and
or detasseling
b) field
inspections
Frecuencia de:
a) depuracion y/o - - - _,_ - ·- - - - ·- - -
desespigamiento ""'
b) ~ec~s
~am~
Guidelines and requisites for maize seed Page 3
Guias y rPq11isitoc; prtra SP111illas cfp 111;1iz
-mrr-nir-rammJITmrr----
ASPECI FTR5T GENERATION UTREGTSTEREUJ COMMERCIAL {CERTIFIED}
ASPECTO MADRE (RASICfl) PRIMERA GENERACION (REGISTRADA) COMERCIAL (CERTIFICADA)
Tolerances for
off-types r• 1i lnts•:
- hybrids
- varieties
Tolerancia de
pl ant as fuera
de tipo *:
- hlbridos
- variedad<>s
-·-----------------------· ----------------------------"1""--------------------------f
Weed Control
Conlro 1 de
ma lezas
Insect
Control
Contro 1 de
plagas
of
Percentage -
shedding tassels
a 11 owed in f ema 1e
of hybrids
Porcentaq<'
permit ido de
panojas fett~ninas
emitiendo polen
-~----------
Tolerance<; of
ears with
disP11sed grains
Tolerancia de
mazorcas con
!Jr an o s £' n r P 1 1110"
* slatP rn1111lwr prt· IOO!l/1";iH1r· fr ic ilt:-11ii11iPm ---- ---
Guidelines and requisites for maize seed Page 4
Gutas y requisitos para semillas de
ma~z
B. SEED DRYING CONDITIONS & STORAGE/CONDICIONES OE SECADO Y ALMACENAMIENTCI
BASIC OR toUNUATffiN FIRST GENERAT ION\TiriiJSIT HUl) CUMMERC I /\r ( t ER Tr nro
ASPECTO MADRE (BASICA PRIMERA GENERACION (R[GJSTRAOA) COMERCIAL (CERTIFJCAOA
Harvesting
Method
Forma de
Cosecha
otsture content
to initiate
harvest
Porcentaje de
Humedad en el
grano para
iniciar la
cosecha
Moisture content
for she 11 i ng
Porcentaje de
humedad para e 1
desgrane
I Drying I I --
temperature for
ear maize
Temperatura de
secado de la
mazorca
---------·----·· ----------------
-·
Drying tempera ____ ____ _
ture for grain
, - - - -
Temperatura de
ec ..d ellliilno
Guidelines and tNpiisites for maizP SPcd Page 5
Cui;i•; y l'l'!flli·;ilfl'; f'•"•' '.f'lllilf.ir, d1· 111,ii;
--ASPECT - - · ---rrl\S1c1nr-nmFJffl1TTfiN - - · -- rrRST GENERATION {RtGJSTEREO) COMMfRCl/\L (CERTIFIED)
ASPEClO ._._ __M _/\_DR _E_{!_!/\ SI Cl\ ) PRIMER/\ GfNERACION (REGISTRAD/\) COMERCIAL (CERTIFICADA)
"f.fcil s tu re
~---
for safe stora9e:
a) woven bags
b) Sf'illed contairwrs
:t de humedad en
almacenamie11to:
a) sacus
.... b) envas~ 11 ad~----------------------t------------------+---------------~
'ROTS tu re ~. 1n sP1111 1
wtie11 thr humid i I y
is: 40% Rll
SOX Hll
601. IHI
70!. Rll
:r. de humedad en J.i
semi I I a. cua11do I a
hurnedad re J at iva
es: 40% 11.R.
50% II. R.
60% H.R.
70% U.R.
Minimum co11dit1011
acceptab 1e for
satisfactory storage
a) Tempera tu re
b) Relative humidity
Condiciones
111lni11~s
ar.Pptables para
un almacr11amie11lo
sat isracl.ot'io:
a ) l 11111pe r ii I 1ir ii
b) llumedad
relativa
Tr ea lrrren t
T ra I.am i e11 to
Po~t~fiarvest
Control
Con lro I
p11c;1·osPd1,1