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Diallel analysis for studying heterosis and combining ability of some economical yield traits in pumpkin [electronic resource].

By:

Hussien, A. H

Contributor(s):

Hamed, A. A

Language: English Summary language: Arabic Description: p.261-270Other title:

تحليل الهجن التبادلية لدراسة قوة الهجين والقدرة على الأئتلاف لبعض صفات المحصول الاقتصادية فى القرع العسلى [Added title page title]

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Mansoura University journal of plant production, 2015 v. 6 (3) [electronic resource].

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In: Mansoura University Journal of plant production 2015.v.6(3)Summary: This study was conducted in research farm and laboratories of Horticultural Research Institute, Agric. Res. Center during the period from 2012 to 2014 to estimate heterosis, and both general and specific combining abilities of some pumpkin (Cucurbita maxima Duch. ex Poir.) economical traits, viz., main stem length, number of branches/plant, number of nodes to first female flowers, average length, diameter and weight of fruit, average flesh thickness, number of fruits/plant, and total yield/plant. Five different inbred lines of pumpkin, namely PK 27A (P1), PK 27 (Pz). PK 26 (P3), PK 33 (P4), and PK 31A (P5) were used for carrying out half diallel cross in all possible combinations excluding. reciprocal. Results showed that the maximum significant true heterosis in desirable direction (71.8%) was recorded forTY followed by NB (67%), AFW (41.9%), NF (40.5%), MSL (39.5%), NNF (29.1%), AFL (28.7%) and AFD (12.4%). Keywords: Pumpkin, Heterosis, GCA. SCA and Gene action.

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This study was conducted in research farm and laboratories of Horticultural Research Institute, Agric. Res. Center during the period from 2012 to 2014 to estimate heterosis, and both general and specific combining abilities of some pumpkin (Cucurbita maxima Duch. ex Poir.) economical traits, viz., main stem length, number of branches/plant, number of nodes to first female flowers, average length, diameter and weight of fruit, average flesh thickness, number of fruits/plant, and total yield/plant. Five different inbred lines of pumpkin, namely PK 27A (P1), PK 27 (Pz). PK 26 (P3), PK 33 (P4), and PK 31A (P5) were used for carrying out half diallel cross in all possible combinations excluding. reciprocal. Results showed that the maximum significant true heterosis in desirable direction (71.8%) was recorded forTY followed by NB (67%), AFW (41.9%), NF (40.5%), MSL (39.5%), NNF (29.1%), AFL (28.7%) and AFD (12.4%). Keywords: Pumpkin, Heterosis, GCA. SCA and Gene action.

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