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NC State Extension

2019 Zucchini Squash Cultigen Evaluations

Hort. Series # 235

Principle Investigators

Jonathan R. Schultheis, Professor and Extension Specialist
Keith D. Starke, Agricultural Research Associate

General Cultural Practices

The squash study was established on black plastic mulch. Pesticides used on all plots were chemicals labeled for that crop, 2019 North Carolina Agricultural Chemicals Manual. View the PDF version of the 2019 squash cultigen evalutations.

Acknowledgments

We gratefully acknowledge the assistance of Cathy Herring, (Superintendent), and Charles Barrow, (Horticulture Supervisor, Central Crops Research Station, Clayton, NC), as well as, the personnel at the research station for their help in establishing, maintaining, and harvesting the squash cultivar evaluation study. We want to acknowledge the following summer employees for their assistance with the study: Maxton Collins, Ryan Jarret, Benjamin Indermaur, Lauren McAllister, Tanner Seay, and Emma Westbrook. We would also like to thank Joy Smith for conducting the statistical analysis on the data that were collected in this study. The cooperation and support from Clifton, Bejo, Enza Zaden, HM Clause, Rijk Zwaan, Seedway, Seminis/Monsanto, Syngenta and United Genetics are also appreciated. We also want to acknowledge, support for this study was provided by the US Department of Agriculture, National Institute of Food and Agriculture, for the CucCAP Specialty Crop Research Initiative grant under award number 2015-51181-24285.

Disclaimer

This publication presents data from the cultivar evaluation study conducted during 2019. Information in this report is believed to be reliable but should not be relied upon as a sole source of information. Limited accompanying detail is included but excludes some pertinent information, which may aid interpretation.

2019 Zucchini Squash Cultigens and Seed Companies

Cultigen

Company

Calabonita Rijk Zwaan
Calagreen Rijk Zwaan
Calawinter Rijk Zwaan
Cash Machine Enza Zaden
Everglade Syngenta
Green Machine Enza Zaden
Green Star United Genetics
Respect HM Clause
Sanabria Bejo
Spineless Beauty Syngenta
Spineless King Seedway
Spineless Supreme Syngenta
Tribute HM Clause
Zucchini Elite Clifton-HM Clause
23-901 RZ Rijk Zwaan
Bejo 3252 Bejo
Bejo COU 92 Bejo
Bejo Experimental 10 Bejo
Enza 697 Enza Zaden
SV0914YG Seminis
SV6009YG Seminis
SVYG7513 Seminis

View images of each squash cultivar in the PDF booklet.


Table 1.1 Zucchini Squash cultigen study yields¹, number of 20 lb boxes per acre, per indicated harvests for replicated treatments. Clayton, NC, 2019.

Cultigen

Number of 20 pound boxes per acre

Marketable

Culls²

Hvsts.
1 – 3

Hvsts.
4 – 8

Hvsts.
9 – 13

Hvsts.
1 – 3

Hvsts.
4 – 8

Hvsts.
9 – 13

Calabonita 278 628 567 192 34 50
Calagreen 272 709 515 71 52 148
Calawinter 324 601 512 150 62 123
Cash Machine 384 729 719 89 33 73
Everglade 436 655 656 74 16 30
Green Machine 391 610 614 136 46 66
Green Star 364 721 627 200 18 93
Respect 368 562 466 123 10 103
Sanabria 340 561 571 166 25 33
Spineless Beauty 317 634 695 221 35 69
Spineless King 167 712 651 183 44 91
Spineless Supreme 236 547 420 4 27 21
Tribute 282 694 396 111 36 136
Zucchini Elite 306 707 564 236 68 93
23-901 RZ 555 610 764 31 27 34
Bejo 3252 353 676 672 189 15 20
Bejo COU 92 350 589 575 79 20 35
Bejo Experimental 10 461 615 649 124 10 12
Enza 697 322 661 496 73 20 33
SV0914YG 336 667 720 121 31 47
SV6009YG 276 567 589 48 23 51
SVYG7513 279 585 526 87 40 36
Average 336 638 589 123 31 63
LSD (0.05) 221 265 275 183 45 97

¹ Total of 13 harvests. Planting was 2 May 2019. Harvests 1-3 occurred on 5, 7 and 10 June; Harvests 4-8 occurred on 12, 14, 17, 19 and 21 June; Harvests 9-13 occurred 24, 26 and 28 June; 1 and 3 July 2019.
² Culls consisted primarily of misshaped fruit.


Table 1.2 Zucchini Squash cultigen study yields¹, number of 20 lb boxes per acre, per indicated harvests for replicated treatments. Clayton, NC, 2019.

Cultigen

Number of 20 pound boxes per acre

Virus³

Total

Hvsts.
1 – 3

Hvsts.
4 – 8

Hvsts.
9 – 13

Hvsts.
1 – 3

Hvsts.
4 – 8

Hvsts.
9 – 13

Calabonita 0 0 0 471 662 617
Calagreen 0 0 0 342 761 663
Calawinter 0 0 0 475 662 635
Cash Machine 0 0 0 473 761 791
Everglade 0 0 0 510 671 687
Green Machine 0 0 0 527 656 680
Green Star 0 0 0 564 739 719
Respect 0 0 0 491 572 569
Sanabria 0 0 0 507 586 604
Spineless Beauty 0 0 0 538 669 764
Spineless King 0 0 0 350 756 741
Spineless Supreme 0 0 0 240 574 441
Tribute 0 0 0 392 730 532
Zucchini Elite 0 0 0 542 774 657
23-901 RZ 0 0 0 586 638 798
Bejo 3252 0 0 0 543 691 692
Bejo COU 92 0 0 0 429 609 610
Bejo Experimental 10 0 0 0 585 625 661
Enza 697 0 0 0 394 681 529
SV0914YG 0 0 0 457 698 767
SV6009YG 0 0 0 324 590 640
SVYG7513 0 0 0 365 625 561
Average 0 0 0 459 670 653
LSD (0.05) 0 0 0 281 270 296

¹ Total of 13 harvests. Planting was 2 May 2019. Harvests 1-3 occurred on 5, 7 and 10 June; Harvests 4-8 occurred on 12, 14, 17, 19 and 21 June; Harvests 9-13 occurred 24, 26 and 28 June; 1 and 3 July 2019.
³ Fruit were discolored or rough/disfigured due to virus.


Table 2. Zucchini Squash cultigen study yields, cumulative boxes, (20 lbs.), per acre, among all harvests¹. Clayton, NC, 2019.

Cultigen

Marketable

Culls²

Virus³

Total

Percent

Marketable

Cull

Virus

Calabonita 1473 276 0 1749 84 16 0
Calagreen 1495 271 0 1767 84 16 0
Calawinter 1437 335 0 1771 81 19 0
Cash Machine 1831 194 0 2026 90 10 0
Everglade 1747 120 0 1867 93 7 0
Green Machine 1615 248 0 1863 86 14 0
Green Star 1712 310 0 2022 84 16 0
Respect 1396 236 0 1632 85 15 0
Sanabria 1472 225 0 1696 87 13 0
Spineless Beauty 1646 325 0 1971 84 16 0
Spineless King 1530 318 0 1848 83 17 0
Spineless Supreme 1203 52 0 1255 96 4 0
Tribute 1371 283 0 1654 82 18 0
Zucchini Elite 1577 396 0 1973 80 20 0
23-901 RZ 1930 92 0 2022 96 4 0
Bejo 3252 1701 224 0 1926 88 12 0
Bejo COU 92 1514 134 0 1648 92 8 0
Bejo Exp. 10 1725 147 0 1872 92 8 0
Enza 697 1479 126 0 1604 92 8 0
SV0914YG 1723 200 0 1923 90 10 0
SV6009YG 1432 122 0 1554 92 8 0
SVYG7513 1389 162 0 1551 89 11 0
Average 1564 218 0 1782 88 12 0
LSD (0.05) 528 201 0 607 10 10 0

¹ Total of 13 harvests. Planting was 2 May 2019. Harvests 1-3 occurred on 5, 7 and 10 June; Harvests 4-8 occurred on 12, 14, 17,
19 and 21 June; Harvests 9-13 occurred 24, 26 and 28 June; 1 and 3 July 2019.
² Culls consisted primarily of misshaped fruit.
³ Fruit were discolored or rough/disfigured due to virus.


Table 3. Zucchini Squash cultigen study yields¹. Percentage marketable, cull, and virus symptomatic fruit per indicated harvests by number of 20 lb boxes for replicated treatments. Clayton, NC, 2019.

Cultigen

Percentage (%) of yield based upon grade

Marketable

Culls²

Virus³

Hvsts.

1 – 3

Hvsts.

4 – 8

Hvsts.

9 – 13

Hvsts.

1 – 3

Hvsts.

4 – 8

Hvsts.

9 – 13

Hvsts.

1 – 3

Hvsts.

4 – 8

Hvsts.

9 – 13

Calabonita 61 95 91 39 5 9 0 0 0
Calagreen 81 93 77 19 7 23 0 0 0
Calawinter 69 91 80 31 9 20 0 0 0
Cash Machine 81 96 91 19 4 9 0 0 0
Everglade 85 98 95 15 2 5 0 0 0
Green Machine 74 93 90 26 7 10 0 0 0
Green Star 63 97 86 37 3 14 0 0 0
Respect 76 98 81 24 2 19 0 0 0
Sanabria 68 96 95 32 4 5 0 0 0
Spineless Beauty 61 95 91 39 5 9 0 0 0
Spineless King 49 94 88 51 6 12 0 0 0
Spineless Supreme 99 95 95 1 5 5 0 0 0
Tribute 74 95 73 26 5 27 0 0 0
Zucchini Elite 57 91 87 43 9 13 0 0 0
23-901 RZ 95 96 96 5 4 4 0 0 0
Bejo 3252 66 98 97 34 2 3 0 0 0
Bejo COU 92 82 97 94 18 3 6 0 0 0
Bejo Experimental 10 80 98 98 20 2 2 0 0 0
Enza 697 77 97 93 23 3 7 0 0 0
SV0914YG 74 96 94 26 4 6 0 0 0
SV6009YG 85 96 92 15 4 8 0 0 0
SVYG7513 76 93 93 24 7 7 0 0 0
Average 74 95 90 26 5 10 0 0 0
LSD (0.05) 32 7 15 32 7 15 0 0 0

¹ Total of 13 harvests. Planting was 2 May 2019. Harvests 1-3 occurred on 5, 7 and 10 June; Harvests 4-8 occurred on 12, 14, 17, 19 and 21 June; Harvests 9-13
occurred on 24, 26 and 28 June; 1 and 3 July 2019.
² Culls consisted primarily of misshaped fruit.
³ Fruit were discolored or rough/disfigured due to virus.


Table 4.1. Zucchini Squash cultigen study yields¹, average number of fruit per plant, per indicated harvests for replicated treatments. Clayton, NC, 2019.

Cultigen

Number of fruit per plant per harvest period²

Marketable

Culls³

Hvsts.

1 – 3

Hvsts.

4 – 8

Hvsts.

9 – 13

Hvsts.

1 – 3

Hvsts.

4 – 8

Hvsts.

9 – 13

Calabonita 2.3 6.7 7.4 1.4 0.8 0.8
Calagreen 2.4 7.4 7.9 0.8 1.2 2.6
Calawinter 2.6 6.7 7 1.5 1 1.8
Cash Machine 3 7.5 8.7 0.8 1 1.5
Everglade 3.2 6.8 8.4 0.5 0.7 0.8
Green Machine 3.1 6.5 7.3 0.7 0.6 0.8
Green Star 2.3 7.2 7.7 1.3 0.7 1.7
Respect 2.8 6.3 5.7 1.2 0.4 2.9
Sanabria 2.6 6.1 6.7 1.3 0.5 0.3
Spineless Beauty 2.2 5.4 6.7 1.1 0.9 0.8
Spineless King 1.5 6.1 7.1 0.9 0.9 1.1
Spineless Supreme 2.2 5.8 5 0.1 0.2 0.4
Tribute 2.2 7.2 5.4 0.8 1.3 3.7
Zucchini Elite 2.1 6.3 7 1.8 1 0.9
23-901 RZ 3.5 7.3 7.3 0.9 0.9 0.5
Bejo 3252 2.7 7.1 7.9 1.2 0.7 0.2
Bejo COU 92 2.7 6.1 7.3 0.4 0.6 0.8
Bejo Exp. 10 3.6 6.2 6.5 1 0.3 0.1
Enza 697 2.4 6.4 6 1.6 1 1
SV0914YG 2.8 6.6 7.9 0.6 0.8 0.5
SV6009YG 2.3 5.9 7.6 0.4 0.6 1
SVYG7513 2.3 6.1 7.4 0.8 1.2 0.7
Average 2.6 6.5 7.1 0.9 0.8 1.1
LSD (0.05) 1.4 2 2.2 1.3 0.9 1.9

1 Total of 13 harvests. Planting was 2 May 2019. Harvests 1-3 occurred on 5, 7 and 10 June; Harvests 4-8 occurred on 12, 14, 17, 19 and 21 June; Harvests 9-13 occurred on 24, 26 and 28 June; 1 and 3 July 2019.
2 Average number of fruit harvested from each plant at each harvest period (i.e.: 1-5; 6-10; 11-15).
3 Culls consisted primarily of misshaped fruit.


Table 4.2. Zucchini Squash cultigen study yields¹, average number of fruit per plant, per indicated harvests for replicated treatments. Clayton, NC, 2019.

Cultigen

Number of fruit per plant per harvest period²

Virus4

Total

Hvsts.

1 – 3

Hvsts.

4 – 8

Hvsts.

9 – 13

Hvsts.

1 – 3

Hvsts.

4 – 8

Hvsts.

9 – 13

Calabonita 0 0 0 3.7 7.5 8.2
Calagreen 0 0 0 3.2 8.6 10.4
Calawinter 0 0 0 4.1 7.7 8.7
Cash Machine 0 0 0 3.8 8.5 10.1
Everglade 0 0 0 3.6 7.4 9.2
Green Machine 0 0 0 3.8 7.1 8.1
Green Star 0 0 0 3.5 7.8 9.4
Respect 0 0 0 4 6.6 8.6
Sanabria 0 0 0 3.9 6.5 7.1
Spineless Beauty 0 0 0 3.3 6.3 7.5
Spineless King 0 0 0 2.4 7 8.2
Spineless Supreme 0 0 0 2.3 6 5.4
Tribute 0 0 0 3 8.4 9
Zucchini Elite 0 0 0 3.9 7.3 7.8
23-901 RZ 0 0 0 4.4 8.1 7.8
Bejo 3252 0 0 0 3.8 7.8 8.1
Bejo COU 92 0 0 0 3.1 6.7 8.1
Bejo Exp. 10 0 0 0 4.6 6.5 6.6
Enza 697 0 0 0 4 7.4 7
SV0914YG 0 0 0 3.4 7.4 8.4
SV6009YG 0 0 0 2.7 6.5 8.6
SVYG7513 0 0 0 3.1 7.3 8.1
Average 0 0 0 3.5 7.3 8.2
LSD (0.05) 0 0 0 1.9 2.4 2.3

1 Total of 13 harvests. Planting was 2 May 2019. Harvests 1-3 occurred on 5, 7 and 10 June; Harvests 4-8 occurred on 12, 14, 17, 19 and 21 June; Harvests 9-13 occurred on 24, 26 and 28 June; 1 and 3 July 2019.
4Fruit were discolored or rough/disfigured due to virus.


Table 5 . Zucchini squash cultigen study. Cumulative fruit weight and percent per plant among all harvests¹. Clayton, NC, 2019.

Cultigen

Marketable

Culls²

Virus³

Total

Percentage (%)

Marketable

Culls

Virus

Calabonita 6.8 1.3 0 8 83.8 16.2 0
Calagreen 6.9 1.2 0.0 8.1 84.1 15.9 0.0
Calawinter 6.8 1.6 0.0 8.4 81.0 19.0 0.0
Cash Machine 8.4 0.9 0.0 9.3 90.4 9.6 0.0
Everglade 8.0 0.6 0.0 8.6 93.4 6.6 0.0
Green Machine 7.4 1.1 0.0 8.6 86.3 13.7 0.0
Green Star 7.9 1.4 0.0 9.3 83.9 16.1 0.0
Respect 6.4 1.1 0.0 7.5 85.4 14.6 0.0
Sanabria 6.8 1.0 0.0 7.8 87.1 12.9 0.0
Spineless Beauty 7.6 1.5 0.0 9.0 83.7 16.3 0.0
Spineless King 7.2 1.5 0.0 8.7 83.0 17.0 0.0
Spineless Supreme 5.5 0.2 0.0 5.8 96.0 4.0 0.0
Tribute 6.3 1.3 0.0 7.6 82.4 17.6 0.0
Zucchini Elite 7.2 1.8 0.0 9.1 80.0 20.0 0.0
23-901 RZ 8.9 0.4 0.0 9.3 95.5 4.5 0.0
Bejo 3252 7.8 1.0 0.0 8.8 88.4 11.6 0.0
Bejo COU 92 7.0 0.6 0.0 7.6 91.9 8.1 0.0
Bejo Exp. 10 7.9 0.7 0.0 8.6 92.4 7.6 0.0
Enza 697 6.9 0.6 0.0 7.5 91.7 8.3 0.0
SV0914YG 7.9 0.9 0.0 8.8 89.6 10.4 0.0
SV6009YG 6.6 0.6 0.0 7.1 92.2 7.8 0.0
SVYG7513 6.4 0.7 0.0 7.1 89.4 10.6 0.0
Average 7.2 1.0 0.0 8.2 87.8 12.2 0.0
LSD (0.05) 2.4 0.9 0.0 2.8 10.0 10.0 0.0

¹ Total of 13 harvests.
² Culls consisted primarily of mishaped fruit.
³ Fruit were discolored or rough/disfigured due to virus.


Table 6. Zucchini squash cultigen study yields, cumulative fruit number per plant and percent per grade among all harvests¹. Clayton, NC, 2019.

Cultigen

Marketable

Culls²

Virus³

Total

Percentage (%)

Marketable

Culls

Virus

Calabonita 16 3 0 19 85 15 0
Calagreen 18 5 0 22 79 21 0
Calawinter 16 4 0 21 79 21 0
Cash Machine 19 3 0 22 86 14 0
Everglade 18 2 0 20 90 10 0
Green Machine 17 2 0 19 89 11 0
Green Star 17 4 0 21 83 17 0
Respect 15 4 0 19 77 23 0
Sanabria 15 2 0 17 88 12 0
Spineless Beauty 14 3 0 17 84 16 0
Spineless King 15 3 0 18 83 17 0
Spineless Supreme 13 1 0 14 95 5 0
Tribute 15 6 0 20 73 27 0
Zucchini Elite 15 4 0 19 81 19 0
23-901 RZ 18 2 0 20 89 11 0
Bejo 3252 18 2 0 20 90 10 0
Bejo COU 92 16 2 0 18 90 10 0
Bejo Exp. 10 16 1 0 18 92 8 0
Enza 697 15 4 0 18 81 19 0
SV0914YG 17 2 0 19 90 10 0
SV6009YG 16 2 0 18 89 11 0
SVYG7513 16 3 0 18 85 15 0
Average 16 3 0 19 85 15 0
LSD (0.05) 4 3 0 4 12 12 0

¹ Total of 13 harvests.
² Culls consisted of primarily misshaped fruit.
³ Fruit were discolored or rough/disfigured due to virus.


Table 7. Zucchini squash cultigen study. Cumulative fruit number per acre and percentages, among all harvests¹. Clayton, NC, 2019.

Cultigen

Marketable

Culls²

Virus³

Total

Percentage (%)

Marketable

Culls

Virus

Calabonita 71221 12741 0 83962 85 15 0
Calagreen 76775 19929 0 96703 79 21 0
Calawinter 69260 18077 0 87338 79 21 0
Cash Machine 83309 14048 0 97357 86 14 0
Everglade 79715 8385 0 88100 90 10 0
Green Machine 73616 8821 0 82437 89 11 0
Green Star 74597 15899 0 90496 83 17 0
Respect 64360 19275 0 83635 77 23 0
Sanabria 66756 9148 0 75903 88 12 0
Spineless Beauty 62400 12197 0 74596 84 16 0
Spineless King 62618 12741 0 75359 83 17 0
Spineless Supreme 56421 3049 0 59470 95 5 0
Tribute 64251 24720 0 88971 73 27 0
Zucchini Elite 67191 15899 0 83091 81 19 0
23-901 RZ 78811 9910 0 88721 89 11 0
Bejo 3252 76992 8821 0 85813 90 10 0
Bejo COU 92 70132 7950 0 78081 90 10 0
Bejo Exp. 10 71112 5990 0 77101 92 8 0
Enza 697 62944 15028 0 77972 81 19 0
SV0914YG 75032 8168 0 83200 90 10 0
SV6009YG 68825 8712 0 77537 89 11 0
SVYG7513 68716 11543 0 80259 85 15 0
Average 70230 12321 0 82550 85 15 0
LSD (0.05) 17226 11840 0 20129 12 12 0

¹ Total of 13 harvests.
² Culls consisted of primarily misshaped fruit.
³ Fruit were discolored or rough/disfigured due to virus.


Table 8.1. Zucchini squash cultigen study yields¹. Number of fruit per acre by grade per indicated harvests for replicated treatments. Clayton, NC, 2019.

Cultigen

Number of fruit per acre per harvest period

Marketable

Culls²

Hvsts.

1 – 3

Hvsts.

4 – 8

Hvsts.

9 – 13

Hvsts.

1 – 3

Hvsts.

4 – 8

Hvsts.

9 – 13

Calabonita 9801 29294 32126 6098 3267 3376
Calagreen 10237 32343 34195 3485 5336 11108
Calawinter 10999 28532 29730 6425 4247 7405
Cash Machine 13068 32561 37679 3376 4247 6425
Everglade 13721 29512 36482 2069 2940 3376
Green Machine 13504 28423 31690 3049 2396 3376
Green Star 9910 31145 33541 5445 3049 7405
Respect 12197 27225 24938 5227 1634 12415
Sanabria 11108 26354 29294 5663 2069 1416
Spineless Beauty 9692 23414 29294 4792 3920 3485
Spineless King 6425 25918 30274 3920 4029 4792
Spineless Supreme 9583 25167 21671 327 980 1742
Tribute 9583 31254 23414 3376 5445 15899
Zucchini Elite 9365 27552 30274 7841 4247 3811
23-901 RZ 15246 31581 31984 4029 3812 2069
Bejo 3252 11652 31037 34304 5009 2831 980
Bejo COU 92 11870 26463 31799 1742 2614 3594
Bejo Exp. 10 15682 27116 28314 4356 1198 436
Enza 697 10454 27007 25483 6534 4138 4356
SV0914YG 12197 28641 34195 2396 3485 2287
SV6009YG 10019 25700 33106 1634 2723 4356
SVYG7513 9910 26463 32343 3485 5118 2940
Average 11192 28305 30733 4104 3351 4866
LSD (0.05) 6009 8826 9729 5640 4140 8415

¹ Total of 13 harvests. Planting was 2 May 2019. Harvests 1-3 occurred on 5, 7 and 10 June; Harvests 4-8 occurred on 12, 14, 17, 19 and 21 June; Harvests 9-13 occurred 24, 26, and 28 June; 1 and 3 July 2019.
² Culls consisted of primarily misshaped fruit.
³ Fruit were discolored or rough/disfigured due to virus.


Table 8.2. Zucchini squash cultigen study yields¹. Number of fruit per acre by grade per indicated harvests for replicated treatments. Clayton, NC, 2019.

Cultigen

Number of fruit per acre per harvest period

Virus³

Total

Hvsts.

1 – 3

Hvsts.

4 – 8

Hvsts.

9 – 13

Hvsts.

1 – 3

Hvsts.

4 – 8

Hvsts.

9 – 13

Calabonita 0 0 0 15899 32561 35501
Calagreen 0 0 0 13721 37679 45302
Calawinter 0 0 0 17424 32779 37135
Cash Machine 0 0 0 16444 36808 44105
Everglade 0 0 0 15791 32452 39857
Green Machine 0 0 0 16553 30819 35066
Green Star 0 0 0 15355 34195 40946
Respect 0 0 0 17424 28859 37353
Sanabria 0 0 0 16771 28423 30710
Spineless Beauty 0 0 0 14484 27334 32779
Spineless King 0 0 0 10346 29948 35066
Spineless Supreme 0 0 0 9910 26147 23414
Tribute 0 0 0 12959 36699 39313
Zucchini Elite 0 0 0 17206 31799 34086
23-901 RZ 0 0 0 19275 35393 34053
Bejo 3252 0 0 0 16662 33868 35284
Bejo COU 92 0 0 0 13613 29076 35393
Bejo Exp. 10 0 0 0 20038 28314 28750
Enza 697 0 0 0 16988 31145 29839
SV0914YG 0 0 0 14593 32126 36482
SV6009YG 0 0 0 11652 28423 37462
SVYG7513 0 0 0 13395 31581 35284
Average 0 0 0 15296 31656 35599
LSD (0.05) 0 0 0 8420 10423 10614

¹ Total of 13 harvests. Planting was 2 May 2019. Harvests 1-3 occurred on 5, 7 and 10 June; Harvests 4-8 occurred on 12, 14, 17, 19 and 21 June; Harvests 9-13 occurred 24, 26, and 28 June; 1 and 3 July 2019.
² Culls consisted of primarily misshaped fruit.
³ Fruit were discolored or rough/disfigured due to virus.


Table 9. Zucchini squash cultigen study¹. Percent fruit number per acre per indicated harvests for replicated treatments. Clayton, NC, 2019.

Cultigen

Marketable

Culls²

Virus³

Hvst.
1 – 3

Hvst.
4 – 8

Hvst.
9 – 13

Hvst.
1 – 3

Hvst.
4 – 8

Hvst.
9 – 13

Hvst.
1 – 3

Hvst.
4 – 8

Hvst.
9 – 13

Calabonita 62 90 90 38 10 10 0 0 0
Calagreen 74 86 76 26 14 24 0 0 0
Calawinter 65 87 79 35 13 21 0 0 0
Cash Machine 80 89 85 20 11 15 0 0 0
Everglade 87 91 92 13 9 8 0 0 0
Green Machine 82 93 91 18 7 9 0 0 0
Green Star 65 91 83 35 9 17 0 0 0
Respect 73 95 66 27 5 34 0 0 0
Sanabria 67 93 96 33 7 4 0 0 0
Spineless Beauty 68 86 89 32 14 11 0 0 0
Spineless King 62 86 87 38 14 13 0 0 0
Spineless 98 96 92 2 4 8 0 0 0
Tribute 77 85 62 23 15 38 0 0 0
Zucchini Elite 54 87 89 46 13 11 0 0 0
23-901 RZ 81 89 94 19 11 6 0 0 0
Bejo 3252 70 91 97 30 9 3 0 0 0
Bejo COU 92 88 91 91 12 9 9 0 0 0
Bejo Exp. 10 79 96 99 21 4 1 0 0 0
Enza 697 62 87 85 38 13 15 0 0 0
SV0914YG 84 89 94 16 11 6 0 0 0
SV6009YG 85 91 88 15 9 12 0 0 0
SVYG7513 74 84 91 26 16 9 0 0 0
Average 74 90 87 26 10 13 0 0 0
LSD (0.05) 28 11 19 28 11 19 0 0 0

¹ Total of 13 harvests . Planting was 2 May 2019. Harves ts 1-3 occurred on 5, 7 and 10 June; Harves ts 4-8 occurred on 12, 14, 17, 19 and 21 June; Harves ts 9-13
occurred 24, 26 and 28 June; 1 and 3 July 2019.
² Culls consisted of primarily misshaped fruit.
³ Fruit were discolored or rough/disfigured due to virus.


Table 10. Zucchini Squash cultigen study – Percent plant stand count and average fruit length and width among replicated treatments. Clayton, NC, 2019.

Cultigen

 % Stand¹

Fruit Size (cm)

Avg. Length

Avg. Width

Calabonita 100 6.6 1.9
Calagreen 100 7.5 1.9
Calawinter 98 7.3 1.9
Cash Machine 100 7.3 1.8
Everglade 100 6.7 1.9
Green Machine 100 7.2 1.9
Green Star 100 7.1 1.9
Respect 100 7.1 1.9
Sanabria 100 7.1 1.9
Spineless Beauty 100 7.7 2.1
Spineless King 98 7.2 1.8
Supreme 100 7.4 1.9
Tribute 100 7.0 1.7
Zucchini Elite 100 7.0 1.9
23-901 RZ 100 5.7 2.1
Bejo 3252 100 7.4 1.8
Bejo COU 92 100 6.8 1.9
Bejo Exp. 10 100 7.1 1.9
Enza 697 98 7.1 2.0
SV0914YG 100 6.7 1.9
SV6009YG 100 7.1 1.9
SVYG7513 100 7.4 1.9
Average 100 7.1 1.9
LSD (0.05) 3 0.3 0.1

¹ Final plant stand count was taken on 28 May 2019.


Table 11. Zucchini Squash cultigen study – Plant growth quality data. Clayton, NC, 2019.

Cultigen

Plant Architecture¹

Color²

Speckling³

Spine4

Vigor5

Calabonita 3.8 3.8 3 2.8 8
Calagreen 6.3 3.6 3.2 6.5 8.3
Calawinter 4.3 4.0 3.4 6.5 8.0
Cash Machine 5.3 3.6 2.2 2.5 6.5
Everglade 4.0 4.5 2.2 4.0 8.0
Green Machine 2.3 3.1 3.5 6.5 7.8
Green Star 7.0 3.8 2.4 6.3 8.3
Respect 2.0 4.0 3.4 4.5 7.3
Sanabria 3.0 3.9 3.1 2.5 7.3
Spineless Beauty 4.3 2.5 4.0 1.3 8.8
Spineless King 6.8 3.5 3.7 2.0 9.0
Spineless Supreme 1.0 3.5 2.4 1.0 8.0
Tribute 2.3 3.9 3.7 3.8 7.3
Zucchini Elite 5.3 2.5 4.1 7.2 8.0
23-901 RZ 5.8 Yellow 1.0 3.8 8.0
Bejo 3252 2.5 4.1 2.2 6.8 7.5
Bejo COU 92 2.5 4.0 2.4 4.8 7.0
Bejo Exp. 10 1.5 3.9 2.6 2.8 7.3
Enza 697 1.5 4.0 2.2 2.3 7.0
SV0914YG 3.8 3.8 2.6 1.5 8.5
SV6009YG 2.0 4.1 2.2 6.3 7.3
SVYG7513 4.0 4.1 2.4 2.3 8.5
Average 3.7 3.7 2.8 4.0 7.8
LSD (0.05) 1.9 0.4 0.4 1.1 0.8

¹ Plant architecture ratings are on a scale of 1-10; 1 = open, 10 = dense.
² Color ratings are for fruit on a scale of 1-5; 1 = pale green , 5 = dark green.
³ Speckling ratings are for fruit on a scale of 1-5; 1 = no speckling , 5 = very high speckling
4 Spine ratings are for plant foliage on a scale of 1-10; 1 = no spines, 10 = coarse and many spines.
5 Vigor ratings are for plant foliage on a scale of 1-10; 1 = small plants, 10 = robust, vigorous plants.