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Screening bread wheat genotypes for drought tolerance 2- genetic parameters, associations and path coefficient Analysis [electronic resource].

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Abd El-Moneim, D. A

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Language: English Summary language: Arabic Description: p.351-358Other title:

غربلة تراكيب وراثية من قمح الخبز لتحمل الجفاف 2- المعايير الوراثية ، الارتباط وتحليل معامل المرور [Added title page title]

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Arab universities journal of agricultural sciences, 2008 v. 16 (2) [electronic resource].

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In: Arab Universities Journal of Agricultural Science 2008.v.16(2)Summary: The present investigation was executed at two locations (EI-Arish & (Rafah), Suez Canal University during rain-fed growing season (2006 / 2007) on screened ten bread wheat genotypes. Mean squares and some genetic parameters for the investigated characters are discussed. Grain yield was positively and significantly correlated with each of No. of spikes / plant under Arish conditions and 1000 grain weight as well as biological yield at both Arish and Rafah locations? . The main source (direct effects) of plant grain yield variation estimated under Arish conditions is 1000 grain weight followed by number of spikes / plant, number of grains /spike and biological yield. Estimates of characters responsible for variation in order of relative importance were: number of spikes/plant (12.2%), NO.of grains/spike (13.3%), 1000 grain weight (50.7%) and biological yield (17.5%) under Arish conditions while it could be arranged in descending order as 1000 grain weight (51.9%), number of grains / spike (45.5%), Number of spikelets / spike (1.4%) at Rafah environment.

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The present investigation was executed at two locations (EI-Arish & (Rafah), Suez Canal University during rain-fed growing season (2006 / 2007) on screened ten bread wheat genotypes. Mean squares and some genetic parameters for the investigated characters are discussed. Grain yield was positively and significantly correlated with each of No. of spikes / plant under Arish conditions and 1000 grain weight as well as biological yield at both Arish and Rafah locations? . The main source (direct effects) of plant grain yield variation estimated under Arish conditions is 1000 grain weight followed by number of spikes / plant, number of grains /spike and biological yield. Estimates of characters responsible for variation in order of relative importance were: number of spikes/plant (12.2%), NO.of grains/spike (13.3%), 1000 grain weight (50.7%) and biological yield (17.5%) under Arish conditions while it could be arranged in descending order as 1000 grain weight (51.9%), number of grains / spike (45.5%), Number of spikelets / spike (1.4%) at Rafah environment.

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