Chili Evaluation

8/10/2019 Chili Evaluation

1/7

G uide

InternationalCooperators

Procedures for Chili Pepper Evaluation

T.G. Berke

Introduction

These suggestions are intended for researchers

evaluating the International Chili Pepper Nursery

(ICPN) trials, coordinated by the Asian VegetableResearch and Development Center (AVRDC). (Other

researchers interested in testing chili peppers under

their local conditions might also find the proceduresuseful.) In order that data recorded at different loca-

tions can be compared, it is essential that data col-

lection be done uniformly. These instructions weredeveloped to provide uniform procedures.

Choice of landSelect an area which is well drained and has fairly

uniform fertility and slope.

Experimental design

A randomized complete block design with four repli-

cations is suggested (Fig. 1, sample field layout and

randomization).

Number of entries

In addition to the entries included in the ICPN, it isexpected that two local varieties will be added at each

location for comparison. Each seed envelope con-

tains approximately 200 seeds, more than enoughfor an initial two-row plot trial (20 plants/plot) with

Seedling establishment

Ideally, seedlings should be raised in seedling trays

using a sterile sowing medium so that healthy, vig-

orous seedlings are produced. If seedlings arestarted in a soilbed, the soilbed should be sterilized

by burning a layer of rice straw or other organic mat-

ter on top of it before sowing. Seedlings should beraised in a greenhouse or screenhouse, or covered

with nylon nets to keep out aphids, so that plants are

not infected with viruses prior to transplanting. Forfurther information on seedling production, see the

AVRDC Cooperators Guide Suggested Cultural

Practices for Chili Pepper.

Transplanting

Under favorable environmental conditions, plants will

reach the five-leaf stage about four weeks after sow-

ing. This is the time to transplant. Plant border rows

of a local variety around the trial (Fig. 1).

Cultural practices

For recommended cultural and management prac-

tices after transplanting, see Suggested Cultural

Practices for Chili Pepper.

Harvesting

Fruits should be picked when they have turned com-

January 1999AVRD C pub # 99-484


2/7

Data to be gathered

Record location-specific and experiment-specific data(soil texture, plot size, etc.) and phenotypic data (fruit

yield, days to 50% anthesis, etc.) on the appropriate

accompanying data sheet. Phenotypic data shouldbe recorded on a plot basis (border plants around the

trial should NOT be included in data collection) The

four most important traits to measure are days to 50%anthesis, days to 50% maturity, fresh biomass, and

fresh ripe fruit yield.

1 Days to 50% anthesis:Number of days after

transplanting (DAT) to 50% anthesis (50% of the

3 Fresh biomass: After the last harvest, randomlychoose 10 plants per plot and cut them off at the

ground. Remove all fruits and record fresh weight

of the plants.

4 Fresh ripe fruit yield: Marketable yield of fresh,

red fruits harvested from each plot over a 10-week

period. Record the first and last harvest dates.

5 Fruit weight: Average weight (grams) of 20 fresh,ripe fruits from the second harvest.

6 Fruit length: Average length (cm) of 20 fresh,ripe fruits from the second harvest.

7 Fruit width: Average width (cm) of 20 fresh, ripe

fruits from the second harvest.

)mottob(snoitacilperruofrofnoitazimodnartolpdna)pot(noitacilperenoroftuoyaldleifelpmaS.1giF

yrtnE 1 2 3 4 5 6 7 8 9 01 11 21 31 41 51 61 71 81 91 02 12 22

XX OO OO OO OO OO OO OO OO OO OO OO OO OO OO OO OO OO OO OO OO OO OO XX

XX ZZ ZZ ZZ ZZ ZZ ZZ ZZ ZZ ZZ ZZ ZZ ZZ ZZ ZZ ZZ ZZ ZZ ZZ ZZ ZZ ZZ ZZ XX










XX OO OO OO OO OO OO OO OO OO OO OO OO OO OO OO OO OO OO OO OO OO OO XX

roftolP1peR

1 2 3 4 5 6 7 8 9 01 11 21 31 41 51 61 71 81 91 02 12 22

roftolP2peR

42 83 13 92 53 73 62 52 93 72 24 33 63 03 14 82 34 44 23 04 32 43

roftolP

3peR 06 45 54 15 05 56 95 35 64 36 84 55 75 25 26 85 66 65 94 74 16 46

roftolP4peR

07 77 67 47 87 28 37 57 17 08 88 27 58 18 38 76 86 96 48 97 68 78

otdengissayrtneehtfotnalpa=z;)tolpehtedisnisayteiravemas(tolphcaefotnalpredrob=O;yteiravlacolynafotnalpredrob=Xsa)88-76,66-54,44-32,22-1(perhcaenihtiwredronituodialebdluohsstolP.stolpehtneewtebsworruftneserpersenillacitreV.tolptaht

steehsatadgniynapmoccaehtnonwohs


3/7

Data sheet for recording location and experiment data

1. Location data

2. Experiment data


4/7

4

1peRrofstiartcipytonehprehtodnadleiygnidrocerrofteehsataD

noitacoL tratS:setadtsevraH dnE

gnitnalpsnartretfasyad=TAD

tolP peR yrtnE

%05otsyaDsisehtna

)TAD(

%05otsyaDytirutam

)TAD(

hserFssamoib

)stnalp01()g(

latoTepirhserfdleiytiurf

)g(

egarevAtiurf

thgiew)g(

egarevAtiurfhtgnel)mc(

egarevAtiurfhtdiw)mc( setonssertscitoiB skrameR

1 1 1

2 1 2

3 1 3

4 1 4

5 1 5

6 1 6

7 1 7

8 1 8

9 1 9

01 1 01

11 1 11

21 1 21

31 1 31

41 1 41

51 1 51

61 1 6171 1 71

81 1 81

91 1 91

02 1 02

12 1 12

22 1 22

COR,147nawiaT,auhnahS24xoBOP,retneCtnempoleveDdnahcraeseRelbategeVnaisA,ekreByrreTrD:otmrofdnesesaelP wt.gro.cdrva.arten@yrret:liame9000-3856688:xaF033.txe1087-3856688:enohP


5/7

5




tolP peR yrtnE

%05otsyaDsisehtna

)TAD(

%05otsyaDytirutam

)TAD(

hserFssamoib

)stnalp01()g(


)g(

egarevAtiurf

thgiew)g(



32 2 12

42 2 1

52 2 8

62 2 7

72 2 01

82 2 61

92 2 4

03 2 41

13 2 3

23 2 91

33 2 21

43 2 22

53 2 5

63 2 31

73 2 6

83 2 2

93 2 9

04 2 02

14 2 51

24 2 11

34 2 71

44 2 81

COR,147nawiaT,auhnahS24xoBOP,retneCtnempoleveDdnahcraeseRelbategeVnaisA,ekreByrreTrD:otmrofdnesesaelP

wt.gro.cdrva.arten@yrret:liame9000-3856688:xaF033.txe1087-3856688:enohP


6/7

6




tolP peR yrtnE

%05otsyaDsisehtna

)TAD(

%05otsyaDytirutam

)TAD(

hserFssamoib

)stnalp01()g(


)g(

egarevAtiurf

thgiew)g(



54 3 3

64 3 9

74 3 02

84 3 11

94 3 91

05 3 5

15 3 4

25 3 41

35 3 8

45 3 2

55 3 21

65 3 81

75 3 31

85 3 61

95 3 7

06 3 1

16 3 12

26 3 51

36 3 01

46 3 22

56 3 6

66 3 71




7/7

7




tolP peR yrtnE

%05otsyaDsisehtna

)TAD(

%05otsyaDytirutam

)TAD(

hserF

ssamoib)stnalp01(

)g(

latoT

epirhserfdleiytiurf

)g(

egarevA

tiurfthgiew

)g(

egarevA

tiurfhtgnel

)mc(

egarevA

tiurfhtdiw

)mc( setonssertscitoiB skrameR

76 4 61

86 4 71

96 4 81

07 4 1

17 4 9

27 4 21

37 4 7

47 4 4

57 4 8

67 4 3

77 4 2

87 4 5

97 4 02

08 4 01

18 4 41

28 4 6

38 4 51

48 4 91

58 4 31

68 4 12

78 4 22

88 4 11



Documents

Chili Evaluation