• TABLE OF CONTENTS
HIDE
 Historic note
 Main














Group Title: Evaluations of sweet corn varieties.
Title: Evaluations of sweet corn varieties. Spring 1995
ALL VOLUMES CITATION THUMBNAILS PAGE IMAGE ZOOMABLE
Full Citation
STANDARD VIEW MARC VIEW
Permanent Link: http://ufdc.ufl.edu/UF00075807/00002
 Material Information
Title: Evaluations of sweet corn varieties. Spring 1995
Series Title: Evaluations of sweet corn varieties.
Translated Title: Research Report - University of Florida Institute of Food and Agricultural Sciences ; 96-01 ( English )
Physical Description: Serial
Language: English
Creator: Hancik, Ivalou D.
White, James M.
Publisher: Central Florida Research and Education Center, Institute of Food and Agricultural Sciences, University of Florida
Publication Date: 1995
 Record Information
Bibliographic ID: UF00075807
Volume ID: VID00002
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 144607376

Table of Contents
    Historic note
        Historic note
    Main
        Page 1
        Page 2
        Page 3
        Page 4
        Page 5
Full Text





HISTORIC NOTE


The publications in this collection do
not reflect current scientific knowledge
or recommendations. These texts
represent the historic publishing
record of the Institute for Food and
Agricultural Sciences and should be
used only to trace the historic work of
the Institute and its staff. Current IFAS
research may be found on the
Electronic Data Information Source
(EDIS)

site maintained by the Florida
Cooperative Extension Service.






Copyright 2005, Board of Trustees, University
of Florida








q ( O University of Florida
Institute of Food & Agricultural Sciences
Central Florida Research & Education Center
Sanford, FL 32771-9608 .

Research Report SAN96-01 July~ 1995


Evaluations of Sweet Corn Varieties, Spring 1995

Ivalou D. Hancik and James M. White


Introduction

A supersweet (shrunken-2 gene) sweet corn variety trial was conducted at Zellwin
Farms, Inc., Zellwood, FL, during the spring 1995 growing season. The trial was limited to
cultivars/breeding lines of the gene type homozygous shrunken-2 (sh2), i.e., supersweet,
since these cultivars are considered the standard for large commercial growers. Yellow,
white, and bicolored lines were included in the trial.

The kernels of the sh2 type sweet corn have at least 2-3 times the total sugars of
"normal" sweet corn at optimum harvest; conversion of sugar to starch is also much slower.
This slower conversion facilitates a longer harvest and storage period along with an
increased time for consumption. Consumer preference has also shifted toward the
supersweet type sweet corn. In light of widespread use of the sh2 type sweet corn, it is
important to evaluate commercially-available and advanced breeding lines for their
adaptability to central Florida's growing conditions.

Materials & Methods

Seeds were planted by hand on March 29, 1995; plots were single-row, 3' wide x
23' long with 9" in-row spacing. Three replications were arranged in a randomized
complete block design.

Cultural practices, provided by the cooperating grower, were comparable to the
routine practices used by commercial growers to produce a sweet corn crop in central
Florida.

Plots were harvested by hand at peak maturity, beginning June 1 and ending June 9.
Only first ears and/or marketable second ears were harvested. Individual plots were
harvested only once. Ears were counted and weighed; subsamples of 10 marketable
ears/plot were selected, husked, and evaluated for length, width, maturity, tip fill, husk
cover, and kernel color (Table 1). Weather data are recorded in Table 2.








Results & Discussion


Sweet corn yields, expressed as 42 Ib crates/acre, ranged from 299-484 crates/acre.
The five top-yielding entries were GSS7887, HMX 2384S, HMX 3364BS, UFY 7, and
UFW 67. The lowest yielding lines in the trial were FMX 418, Endeavor, GSS 4606, BSS
4605, and HMX 2347WS.

Considerable variation in ear length was recorded; ear length (cm) ranged from 18.1
(HMX 3364BS) to 21.7 (HMX 2384S). Ear diameter (cm) was less variable, ranging from
4.23 (Endeavor) to 4.97 (Victor FMX 329).

Husk cover was marginal on Snow White, Quest, Sweet Magic, GSS 4606, and BSS
4605, as evinced by protruding ear tips, green tips, and loose husks. Tip fill was generally
acceptable, however, XPH 3056, Sheba (XPH 3027), and Endeavor were somewhat weak in
tip fill.

This report is not intended to recommend one variety over another, but rather is
meant as a general guideline for variety selection. Different field locations, planting dates,
and cultural practices may alter the performance of these sweet corn lines; growers should
be mindful of this variability when selecting a new variety and planting small test areas of
new varieties may be advisable.

Seeds were obtained from the following:

AG Agrisales, Inc., P. O. Box 2060, Plant City, FL 33564-2060
AM AMSA Seed Co., P.O. Box 5301, Modesto, CA 95352-5301
AS Asgrow Seed Co., 7000 Portage Rd., Kalamazoo, MI 49001
ER Everglades-REC, P. O. Box 8003, Belle Glade, FL 33430-8004
FM Ferry-Morse Seed Co., P.O. Box 4938, Modesto CA 95352-4938
GL Gardenland, 1400 W. First St., Sanford, FL 32771
GR Grower's Standard Variety (Snow White), Zellwin Farms, Inc., Zellwood,
FL 32798
HM Harris Moran Seed Co., P.O. Box 3091, Modesto, CA 95352
RO Rogers Seed Co., P.O. Box 4188, Boise, ID 83711-4188
SE Seedway, Inc., 1225 Zeager Rd., Elizabethtown, PA 17022




e S

Table 1. Sweet corn variety trial Zellwood, FL Spring 1995.


Days to Yield/acrey % Husk Tip Kernel Avg. eart (cm) Notes and
Entry Source harvest crates cwt standx cover fillv color" length diam. Maturity5 comments

GSS 7887 RO 72 484 as 203 a 97 b 4.2 a-d 4.5 a-c Y 19.7 d-h 4.67 b-e +2 green tip
HMX 2384S HM 72 474 ab 199 ab 92 be 4.2 a-d 4.7 ab Y 21.7 a 4.83 ab +2 side ears
HMX 3364 BS HM 64 463 a-c 195 a-c 91 be 4.5 a-c 4.7 ab B 18.1 m 4.73 be 0 nice
UFY 7 AG 72 455 a-d 191 a-d 143 a 5.0 a 5.0 a Y 18.6 k-m 4.70 b-d +1 flags
UFW 67 ER 70 449 a-e 188 a-e 91 be 4.8 a 5.0 a B 19.3 g-k 4.47 ef 0 crooked rows
---------------------------------------------------------------------------------------------------------------------------------------------------------
Standing Ovation AM 72 428 a-f 180 a-f 97 b 4.3 a-c 5.0 a Y 19.9 d-h 4.60 c-e +2 flags
Snow White GR 70 427 a-f 179 a-f 97 b 2.8 e 5.0 a W 21.0 b 4.67 b-e +1 greentip
XPH 3121 AS 72 427 a-f 179 a-f 97 b 4.2 a-d 4.7 ab Y 20.4 b-d 4.67 b-e 0 ear protrudes
XPH 3056 AS 72 417 a-g 175 a-g 90 bc 4.3 a-c 3.8 c Y 19.8 d-h 4.80 a-c +1
Sweet William AM 70 417 a-g 175 a-g 97 b 4.7 ab 4.8 ab Y 20.0 d-g 4.30 fg 0
---------------------------------------------------------------------------------------------------------------------------------------------------------
Sheba (XPH 3027) AS 64 409 a-g 172 a-g 97 b 4.8 a 2.8 d 20.8 be 4.47 ef -1
XPH 3024 AS 70 400 b-g 168 b-g 89 bc 5.0 a 4.2 be Y 19.7 d-h 4.60 c-e 0
HMX 2346 BS HM 70 400 b-g 168 b-g 93 be 4.5 a-c 5.0 a B 18.2 Im 4.63 b-e 0 flags
FMX 402 FM 70 396 b-g 166 b-g 85 be 4.2 a-d 4.5 a-c B 20.2 c-f 4.67 b-e 0 glossy kernels
Starship SE 70 396 b-g 166 b-g 89 be 5.0 a 5.0 a B 19.8 d-h 4.67 b-e +1
---------------------------------------------------------------------------------------------------------------------------------------------------------
UFW 67B ER 70 395 c-g 166 c-g 97 b 4.8 a 5.0 a B 18.9 i-i 4.53 de 0 crooked rows
Voyager SE 70 381 d-h 160 d-h 86 be 5.0 a 4.8 ab Y 20.3 c-e 4.77 be +1
Hyb. 78 SE 64 381 d-h 160 d-h 96 b 4.7 ab 4.7 ab Y 19.1 h-k 4.30 fg -1
Primetime RO 70 375 e-i 157 e-i 97 b 4.3 a-c 5.0 a Y 19.1 h-k 4.60 c-e 0
FMX 412 FM 72 370 e-i 155 e-i 75 c 4.8 a 4.2 be Y 19.6 e-i 4.67 b-e +1
---------------------------------------------------------------------------------------------------------------------------------------------------------
FL Staysweet GL 70 369 f-i 155 f-i 90 be 5.0 a 4.5 a-c Y 19.3 g-k 4.30 fg 0 flags & large shank
Quest RO 70 368 f-i 154 f-i 84 be 3.5 c-e 4.7 ab B 20.2 c-f 4.77 be +1 protrude
Sweet Magic HM 64 361 f-i 152 f-i 94 be 3.2 de 5.0 a W 18.7 j-m 4.77 be 0 loose husks
Victor (FMX 329) FM 70 348 f-i 146 f-i 85 be 4.0 a-d 4.8 ab Y 20.2 c-f 4.97 a 0 some protrude fat ears
FMX 418 FM 72 346 g-i 145 g-i 76 be 4.8 a 5.0 a Y 19.5 f-i 4.77 be +2








Table 1. Cont'd.


Days to Yield/acre' % Husk Tip Kernel Avg. ear' (cm) Notes and
Entry Source harvest crates cwt standx cover fill color" length diam. Maturity5 comments

Endeavor AS 64 343 g-iz 144 g-i 97 b 5.0 a 3.8 c 19.5 f-i 4.23 g -1
GSS 4606 RO 72 311 hi 131 hi 90 bc 3.7 b-e 5.0 a Y 18.6 j-m 4.47 ef 0 green tip
BSS 4605 RO 72 310 hi 130 hi 76 be 3.7 b-e 5.0 a B 19.4 g-j 4.53 de 0 protrudes
HMX 2347WS HM 64 299 i 125 i 84 bc 4.0 a-d 5.0 a W 19.2 g-k 4.63 b-e 0 crooked rows


zMean separation in columns by Duncan's Multiple Range Test, 0.05 level General Linear Models Procedure. Means followed by the same letter are not
significantly different.
YYield expressed as 42 lb crates/A.

"Based on a maximum stand of 30 plants if all seeds germinated. Entry UFY 7 was suspected to have poor germination and was planted heavily (143% stand).
"Husk cover: l=ear protrudes from husk; 5=ear tightly wrapped and completely covered.

'Tip fill, 0=at least 1" of unfilled kernels at the ear tip; 5=full at tip.
"Kernel color: B=bicolor; W= white, Y=yellow.

Ear length/diam. (cm): measurements on husked ears, an average value of a 10-ear sample/replication.
SMaturity: 0=harvested at optimal maturity, (+) or (-) indicates over mature or under mature, respectively, followed by the number of days.







Table 2. Temperature and rainfall at CFREC-Sanford (30 miles
east of Zellwood) during the spring 1995 sweet corn
season (March 29 June 9).

Daily temperature (oF) Rainfall
Month Maximum Minimum (in)

March 29-31 85 59 0.00

April 1-30 92 46 2.91

May 1-31 96 60 3.29

June 1-9 95 70 1.24
Total 7.44




University of Florida Home Page
© 2004 - 2010 University of Florida George A. Smathers Libraries.
All rights reserved.

Acceptable Use, Copyright, and Disclaimer Statement
Last updated October 10, 2010 - - mvs