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Production and evaluation of some tomato hybrids for low tunnel culture [electronic resource].

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Abdel-Ati, K. E. A

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Language: English Summary language: Arabic Description: p.141-161Other title:

انتاج و تقييم بعض هجن الطماطم لزراعات الانفاق [Added title page title]

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Egyptian journal of plant breeding, 2007 v. 11 (1), Special issue [electronic resource]:

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In: Egyptian Journal of Plant Breeding 2003.v.7(1), Special issue.Part-1Summary: Fifteen true-breeding tomato cvs. were evaluated as potential parents for hybrids, along with the eommercial hybrid Alwadi in the 1997/1998 winter season under low tunnels using a drip-irrigation system. Cultivar Supermarmande had the highest values of plant height (PH), fruit set (FS) percentage and number of locules (NL) per fruit. Cvs. Scotia, Siberia and Oregon Spring V had the highest early yield (EY). Cvs. Siletz and Mountain Gold VFF gave the highest total yield (TY). Cultivar Mountain Gold VFF gave the highest marketable yield (MY). Hybrid Alwadi and cv. Mountain Gold VFF produced the heaviest fruits. Cvs. Apex 1000 and Mountain Gold VFF produced the firmest fruits. Cultivar Burgess Stuffing had the highest fruit total soluble solids (TSS) content. Cvs. Long-Keeper and Apex 1000 had the highest percentage of titratable acidity (TA) over all evaluated cvs. Hybrid Alwadi had significantly the highest fruit ascorbic acid (AA) content. Based on former results of the 1997/1998 winter season evaluation trial, 7 evs. were chosen as parents to produce 21 F, hybrids in one direction. These F, hybrids were evaluated along with hybrid Alwadi and true-breeding cv. Supermarmande as controls during the 1998/1999 and 1999/2000 winter seasons under low tunnels using the drip-irrigation system. In the two seasons, the hybrids Campbell 1327 VF x Scotia and Supermarmande x Seotia were superior in some characters. The hybrid Campbell 1327 VF x Seotia produced the highest values of percentage FS, TY and MY, but it was second in EY. Also, it had average fruit weight. (AFW) more than 100 g in the first season and 99.0 g in the second one. It also had round fruits having medium values of each of fruit firmness (FF), NL, TSS, TA percentage and AA content. The hybrid Supermarmande x Scotia was the second in TY and MY. It also produced round fruits with an AFW about 66 g having medium values of each of FF, NL and AA content. Fruit TSS was high, being 5.8.

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Fifteen true-breeding tomato cvs. were evaluated as potential parents for hybrids, along with the eommercial hybrid Alwadi in the 1997/1998 winter season under low tunnels using a drip-irrigation system. Cultivar Supermarmande had the highest values of plant height (PH), fruit set (FS) percentage and number of locules (NL) per fruit. Cvs. Scotia, Siberia and Oregon Spring V had the highest early yield (EY). Cvs. Siletz and Mountain Gold VFF gave the highest total yield (TY). Cultivar Mountain Gold VFF gave the highest marketable yield (MY). Hybrid Alwadi and cv. Mountain Gold VFF produced the heaviest fruits. Cvs. Apex 1000 and Mountain Gold VFF produced the firmest fruits. Cultivar Burgess Stuffing had the highest fruit total soluble solids (TSS) content. Cvs. Long-Keeper and Apex 1000 had the highest percentage of titratable acidity (TA) over all evaluated cvs. Hybrid Alwadi had significantly the highest fruit ascorbic acid (AA) content. Based on former results of the 1997/1998 winter season evaluation trial, 7 evs. were chosen as parents to produce 21 F, hybrids in one direction. These F, hybrids were evaluated along with hybrid Alwadi and true-breeding cv. Supermarmande as controls during the 1998/1999 and 1999/2000 winter seasons under low tunnels using the drip-irrigation system. In the two seasons, the hybrids Campbell 1327 VF x Scotia and Supermarmande x Seotia were superior in some characters. The hybrid Campbell 1327 VF x Seotia produced the highest values of percentage FS, TY and MY, but it was second in EY. Also, it had average fruit weight. (AFW) more than 100 g in the first season and 99.0 g in the second one. It also had round fruits having medium values of each of fruit firmness (FF), NL, TSS, TA percentage and AA content. The hybrid Supermarmande x Scotia was the second in TY and MY. It also produced round fruits with an AFW about 66 g having medium values of each of FF, NL and AA content. Fruit TSS was high, being 5.8.

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