Claim · model-written summary
Lycopene content differed by year, 52.44 versus 32.51 µg·g −1.
- Taxon
- watermelon
Citrullus lanatuse0 - Outcome
- lycopene contente0
- Value
- 52.44 and 32.51 µg·g −1e0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“watermelon ( Citrullus lanatus ), especially when plants are under biotic and/or abiotic stress. A 2-year field study was conducted to evaluate the combination of four different rootstocks and two types of plastic mulch (black and clear) on date of watermelon first flowering, fruit ripening, yield, and fruit quality when plants were exposed to Verticillium dahliae . Seedless watermelon cv. Secretariat was grafted onto rootstocks Lagenaria siceraria cv. Pelop, Benincasa hispida cv. Round, and two interspecific hybrid squash rootstocks Cucurbita maxima × C. moschata cvs. Super Shintosa and Tetsukabuto, with nongrafted ‘Secretariat’ as the control. Fruit were harvested 0, 7, and 14 days after both the leaflet and tendril attached to the fruit pedicel were completely dry (fruit considered to be physiologically mature). The area under the disease progress curve (AUDPC) values for verticillium wilt were not different for mulch type in either year, although the overall AUDPC value was greatly reduced in the four grafted treatments (227) compared with nongrafted (743). There was no difference in days to male or female flowering due to mulch type or year, and rootstock did not affect first flowering of male flowers. Female flowering was 14 and 11 days later in 2018 and 2019, respectively, for ‘Secretariat’ grafted onto bottle gourd ‘Round’ compared with ‘Secretariat’ grafted onto ‘Tetsukabuto’. Female flowering of ‘Secretariat’ on ‘Round’ was also 7 days later compared with nongrafted ‘Secretariat’ both years. However, days to first harvest was not different with mulch or rootstock and was 92 days after transplanting (DAT) in 2018 and 114 DAT in 2019. There was no difference in yield (fruit number and weight) due to year, harvest date, or mulch, but there was a difference due to grafting. ‘Secretariat’ grafted onto ‘Super Shintosa’ had the greatest total number and weight of fruit per plant (3.7 and 14.8 kg, respectively), and nongrafted ‘Secretariat’ had the lowest (0.7 and 3.2 kg, respectively). Fruit quality attributes hollow heart formation (rating 3.2/5 on average), hard seed count (6 on average), total soluble solids (11% on average), and lycopene content were not different among mulch type, rootstock treatment, or harvest date; however, lycopene content did differ due to year (52.44 and 32.51 µg·g −1 in 2018 and 2019, respectively)”
Title
Pinki Devi; Penelope Perkins-Veazie; Carol A. Miles HortScience 2020. doi:10.21273/hortsci15134-20
Other claims from this paper (14)
- Intervention effect Mulch type did not alter verticillium wilt AUDPC.
- Intervention effect Grafting reduced wilt AUDPC from 743 to 227.
- Intervention effect Mulch and year did not change male or female flowering time.
- Intervention effect Rootstock did not affect male first flowering.
- Intervention effect Round delayed female flowering versus Tetsukabuto by 14 days in 2018.
- Intervention effect Round delayed female flowering versus Tetsukabuto by 11 days in 2019.
- Intervention effect Round delayed female flowering versus nongrafted Secretariat by 7 days.
- Intervention effect Neither mulch nor rootstock changed days to first harvest.
- Intervention effect Yield did not differ by year, harvest date or mulch.
- Intervention effect Grafting affected yield.
- Intervention effect Super Shintosa produced the greatest fruit number, 3.7 per plant.
- Intervention effect Super Shintosa produced the greatest fruit weight, 14.8 kg per plant.
- Intervention effect Hollow heart, hard seeds and soluble solids did not differ by mulch, rootstock or harvest date.
- Intervention effect Super Shintosa gave the highest flesh firmness, 6.7 N.