{"title":"تأثير التلقيح بالتعفير في صنفي نخيل البلح روثانة وربيعة على : ب ـ صفات الثمار الطبيعية","authors":"أحمد مخلص عبده السيسي أحمد مخلص عبده السيسي","doi":"10.4197/met.11-1.4","DOIUrl":"https://doi.org/10.4197/met.11-1.4","url":null,"abstract":"","PeriodicalId":254766,"journal":{"name":"Journal of King Abdulaziz University-meteorology, Environment and Arid Land Agriculture Sciences","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130910447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This research studied the human geographical factors that affect crop yield of wheat in Tabouk area of the Kingdom of Saudi Arabia. The study was conducted in a sample of 71 farms randomly chosen from a total of 713 wheat farms distributed in Tabouk area. The data were collected through personal contacts with the farmers who answered the questions submitted to them in the forms that were mainly designed for this purpose. The results showed ownership type, agricultural experience of the labors, method of farming system, soil type, quantity of fertilizer applied, farm area and period of farm utilization had significantly affected average wheat yield in Tabouk area. The results also showed that the costs of production per unit farming area was inversely proportional to the farm area and that farm area had a positive effect on the average income.
{"title":"تأثير العوامل الجغرافية البشرية على متوسط إنتاجية محصول القمح في منطقة تبوك بالمملكة العربية السعودية ، في الفترة من 1970 إلى 1990م","authors":"آمال محمد جان ملا آمال محمد جان ملا","doi":"10.4197/met.11-1.7","DOIUrl":"https://doi.org/10.4197/met.11-1.7","url":null,"abstract":"This research studied the human geographical factors that affect crop yield of wheat in Tabouk area of the Kingdom of Saudi Arabia. The study was conducted in a sample of 71 farms randomly chosen from a total of 713 wheat farms distributed in Tabouk area. The data were collected through personal contacts with the farmers who answered the questions submitted to them in the forms that were mainly designed for this purpose. The results showed ownership type, agricultural experience of the labors, method of farming system, soil type, quantity of fertilizer applied, farm area and period of farm utilization had significantly affected average wheat yield in Tabouk area. The results also showed that the costs of production per unit farming area was inversely proportional to the farm area and that farm area had a positive effect on the average income.","PeriodicalId":254766,"journal":{"name":"Journal of King Abdulaziz University-meteorology, Environment and Arid Land Agriculture Sciences","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125421958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"تأثير التغذية الصناعية بالمواد الكربوهيدراتية و/ أو البروتين ، على بعض أنشطة طوائف نحل العسل ( Apis mellifera L. ) في منطقة أسيوط ، مصر العليا","authors":"مصطفى حسين محمد حسين","doi":"10.4197/met.11-1.9","DOIUrl":"https://doi.org/10.4197/met.11-1.9","url":null,"abstract":"","PeriodicalId":254766,"journal":{"name":"Journal of King Abdulaziz University-meteorology, Environment and Arid Land Agriculture Sciences","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122345356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This research revealed the changes in wheat yield, area planted and loans given to wheat farmers with time, in Tabouk region in particular and the Kingdom in general in the period extending from 1980 to 1988. The data is intended to assess the possibility expansion and production of wheat in Tabouk area. Data were collected from the Ministry of Agriculture and Water, and from Saudi Arabia Agricultural Bank. The analysis included both cartographic and quantitative analytical systems. The results showed positive and linear regression relationships between time and wheat yield, cultivated area in both Tabouk area and the Kingdom. A curvilinear relationship was found between loans and years of production in the Kingdom. This relation was linear in Tabouk region. The results also showed a very strong significant relationship between the progress in crop yield and the area planted and loans, and also between the area and loans. This indicated that wheat yields at Tabouk region were higher compared to those obtained in other parts of the Kingdom. The results obtained from this study showed the possibility of planting wheat in Tabouk
{"title":"تحليل السلاسل الزمنية ودراسة العلاقة بين كل من إنتاج ومساحة القمح والقروض الممنوحة لمزارعيه بمنطقة تبوك بالمملكة العربية السعودية للفترة من 1980 إلى 1988م","authors":"آمال محمد جان ملا آمال محمد جان ملا","doi":"10.4197/met.11-1.6","DOIUrl":"https://doi.org/10.4197/met.11-1.6","url":null,"abstract":"This research revealed the changes in wheat yield, area planted and loans given to wheat farmers with time, in Tabouk region in particular and the Kingdom in general in the period extending from 1980 to 1988. The data is intended to assess the possibility expansion and production of wheat in Tabouk area. Data were collected from the Ministry of Agriculture and Water, and from Saudi Arabia Agricultural Bank. The analysis included both cartographic and quantitative analytical systems. The results showed positive and linear regression relationships between time and wheat yield, cultivated area in both Tabouk area and the Kingdom. A curvilinear relationship was found between loans and years of production in the Kingdom. This relation was linear in Tabouk region. The results also showed a very strong significant relationship between the progress in crop yield and the area planted and loans, and also between the area and loans. This indicated that wheat yields at Tabouk region were higher compared to those obtained in other parts of the Kingdom. The results obtained from this study showed the possibility of planting wheat in Tabouk","PeriodicalId":254766,"journal":{"name":"Journal of King Abdulaziz University-meteorology, Environment and Arid Land Agriculture Sciences","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128780867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This research was conducted during two successive seasons (1995, 1996) on two date palm cultivars; Rothana and Rabia, at Hada AL-Sham region at the Agricultural Research of King Abdulaziz University. The objective of the study was comparing the traditional pollination method with dusting pollination on fruit set and bunch weight. Traditional pollination method gave the highest fruit set percentage and bunch weight as compared with dusting pollination method. Dusting pollination led to early fruit thinning which was light at higher pollen grain concentrations in the mixture of dusting pollination (2025%). Meanwhile, the heaviest fruit thinning was observed at lower pollen grain concentrations (2.5-5%). The results of this experiment suggested that using 15-20% pollen grain concentrations gave satisfactory yield in both Rothana and Rabia date palm cultivars.
{"title":"تأثير التلقيح بالتعفير في صنفي نخيل البلح روثانة وربيعة على : أ _ عقد الثمار ووزن العذق","authors":"أحمد مخلص عبده السيسي أحمد مخلص عبده السيسي","doi":"10.4197/met.11-1.3","DOIUrl":"https://doi.org/10.4197/met.11-1.3","url":null,"abstract":"This research was conducted during two successive seasons (1995, 1996) on two date palm cultivars; Rothana and Rabia, at Hada AL-Sham region at the Agricultural Research of King Abdulaziz University. The objective of the study was comparing the traditional pollination method with dusting pollination on fruit set and bunch weight. Traditional pollination method gave the highest fruit set percentage and bunch weight as compared with dusting pollination method. Dusting pollination led to early fruit thinning which was light at higher pollen grain concentrations in the mixture of dusting pollination (2025%). Meanwhile, the heaviest fruit thinning was observed at lower pollen grain concentrations (2.5-5%). The results of this experiment suggested that using 15-20% pollen grain concentrations gave satisfactory yield in both Rothana and Rabia date palm cultivars.","PeriodicalId":254766,"journal":{"name":"Journal of King Abdulaziz University-meteorology, Environment and Arid Land Agriculture Sciences","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126582739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
أجريت هذه الدراسة على صنفي نخيل البلح غر وسكرية ينبع بمحطة الأبحاث الزراعية ( بمنطقة هدى الشام) التابعة لجامعة الملك عبد العزيز بجدة لمدة عامين متتاليين ( 1996 ، 1997م ). وذلك لدراسة العلاقة بين مدة بقاء الأزهار المؤنثة صالحة للإخصاب وتأثير ذلك على الصفات الطبيعية للثمار. حدثت زيادة تدريجية في وزن الثمرة في كلا الصنفين عندما تأخر إجراء التلقيح بعد تفتح الأغاريض المؤنثة وبلغت أعلى قيمة لها عند إجراء التلقيح بعد مضي 12 يوما من تفتح الأغاريض المؤنثة في كلا الصنفين ويرجع ذلك إلى حدوث نقص في عقد الثمار مع تأخير التلقيح. كما حدثت زيادة تدريجية في وزن اللحم والبذرة عندما تأخر موعد تلقيح الأزهار، الزيادة التي حدثت في وزن البذرة كانت طفيفة جدا وغير معنوية في أغلب الأحوال ، بينما كانت الزايدة في وزن لحم الثمرة معنوية، وهذا يوضح أن الزيادة التي حدثت في وزن الثمرة كنتيجة لتأخير إجراء التلقيح ترجع أساسا زيادة وزن لحم الثمرة وانعكس ذلك بطبيعة الحال على نسبة اللحم إلى البذرة ، حيث حدثت زيادة تدريجية لها عند تأخر موعد التلقيح. كما حدثت زيادة في أبعاد الثمرة (الطول والقطر) عند تأخر إجراء التلقيح وكانت نسبة الزيادة في الطول والقطر متماثلة إلى حد كبير.
{"title":"مدة قابلة الأزهار المؤنثة للإخصاب لنصفي نخيل البلح غر وسكرية ينبع ب ـ علاقتها بصفات الثمار الطبيعية","authors":"محمد عبد الرحيم شاهين","doi":"10.4197/met.11-1.2","DOIUrl":"https://doi.org/10.4197/met.11-1.2","url":null,"abstract":"أجريت هذه الدراسة على صنفي نخيل البلح غر وسكرية ينبع بمحطة الأبحاث الزراعية ( بمنطقة هدى الشام) التابعة لجامعة الملك عبد العزيز بجدة لمدة عامين متتاليين ( 1996 ، 1997م ). وذلك لدراسة العلاقة بين مدة بقاء الأزهار المؤنثة صالحة للإخصاب وتأثير ذلك على الصفات الطبيعية للثمار. حدثت زيادة تدريجية في وزن الثمرة في كلا الصنفين عندما تأخر إجراء التلقيح بعد تفتح الأغاريض المؤنثة وبلغت أعلى قيمة لها عند إجراء التلقيح بعد مضي 12 يوما من تفتح الأغاريض المؤنثة في كلا الصنفين ويرجع ذلك إلى حدوث نقص في عقد الثمار مع تأخير التلقيح. كما حدثت زيادة تدريجية في وزن اللحم والبذرة عندما تأخر موعد تلقيح الأزهار، الزيادة التي حدثت في وزن البذرة كانت طفيفة جدا وغير معنوية في أغلب الأحوال ، بينما كانت الزايدة في وزن لحم الثمرة معنوية، وهذا يوضح أن الزيادة التي حدثت في وزن الثمرة كنتيجة لتأخير إجراء التلقيح ترجع أساسا زيادة وزن لحم الثمرة وانعكس ذلك بطبيعة الحال على نسبة اللحم إلى البذرة ، حيث حدثت زيادة تدريجية لها عند تأخر موعد التلقيح. كما حدثت زيادة في أبعاد الثمرة (الطول والقطر) عند تأخر إجراء التلقيح وكانت نسبة الزيادة في الطول والقطر متماثلة إلى حد كبير.","PeriodicalId":254766,"journal":{"name":"Journal of King Abdulaziz University-meteorology, Environment and Arid Land Agriculture Sciences","volume":"79 12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127179741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This research was conducted on two date palm cultivars; Rothana and Raiba, at Hada Al-Sham region during two successive seasons (1995, 1996). The objective of the study was studying the seasonal changes in physical and chemical fruit properties during the growth under arid land conditions, in order to determine the fruit ripening and the appropriate time for picking. Growth of date fruits was characterized by rapid increases in fruit weight, flesh and seed weight. The maximum values were noticed after 16 and 18 weeks from pollination for Rabia and Rothana cultivars, respectively. Meanwhile, slight decrease in such properties were observed at rutab stage (ripening). There was a negative relationship between moisture and total soluble solids percentages (TSS%). The TSS% reached its maximum value at fruit ripening, where the moisture percentage was at its minimum. Acidity percentage showed fluctuations up and down during the process of growth till it reached its minimum value at ripening in both cultivars.
{"title":"التغيرات الموسمية في الصفات الطبيعية والكيميائية لثمار صتفي نخيل البلح روثانة وربيعة","authors":"أحمد مخلص عبده السيسي أحمد مخلص عبده السيسي","doi":"10.4197/met.11-1.1","DOIUrl":"https://doi.org/10.4197/met.11-1.1","url":null,"abstract":"This research was conducted on two date palm cultivars; Rothana and Raiba, at Hada Al-Sham region during two successive seasons (1995, 1996). The objective of the study was studying the seasonal changes in physical and chemical fruit properties during the growth under arid land conditions, in order to determine the fruit ripening and the appropriate time for picking. Growth of date fruits was characterized by rapid increases in fruit weight, flesh and seed weight. The maximum values were noticed after 16 and 18 weeks from pollination for Rabia and Rothana cultivars, respectively. Meanwhile, slight decrease in such properties were observed at rutab stage (ripening). There was a negative relationship between moisture and total soluble solids percentages (TSS%). The TSS% reached its maximum value at fruit ripening, where the moisture percentage was at its minimum. Acidity percentage showed fluctuations up and down during the process of growth till it reached its minimum value at ripening in both cultivars.","PeriodicalId":254766,"journal":{"name":"Journal of King Abdulaziz University-meteorology, Environment and Arid Land Agriculture Sciences","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116432817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"دراسة استطلاعية لإعداد خريطة جيومورفولوجية لمنطقة سهل المطران ، المملكة العربية السعودية ، مبنية على أساس بيانات الاستشعار عن بعد","authors":"عاصم يحيى بخاري عاصم يحيى بخاري","doi":"10.4197/met.5-1.12","DOIUrl":"https://doi.org/10.4197/met.5-1.12","url":null,"abstract":"","PeriodicalId":254766,"journal":{"name":"Journal of King Abdulaziz University-meteorology, Environment and Arid Land Agriculture Sciences","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124994468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"دراسة مقارنة للطرق المختلفة لتقدير الإشعاع الشمسي الكلي فوق مدينة جدة","authors":"محمد غلام عبد الله محمد غلام عبد الله","doi":"10.4197/met.5-1.8","DOIUrl":"https://doi.org/10.4197/met.5-1.8","url":null,"abstract":"","PeriodicalId":254766,"journal":{"name":"Journal of King Abdulaziz University-meteorology, Environment and Arid Land Agriculture Sciences","volume":"726 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116132293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A BSTRACT. A field exp eriment was conducted to eva lua te the effect of tr eated municipal wast e wat er o n whe at and a lfa lfa cro p in a silty-clay soil. Mean dr y matter yie ld of alfalfa was 94.8 kg per plot usin g Ireated water and 76.9 kg per plot using fresh wat er and was significantl y higher in tre ated water than fresh wat er irrig ati on . The mean gr ain yield of wheat was 6.74 ton s ha . 1 with treated wat er and 5.95 tons ha . 1 with fre sh water irrigation . The contents of Fe ( 145 rng g I) and Zn (35 .5 mg g I) in wheat crop wer e significantly high er with treated water irrig ati on as compared to Fe (133 mg g I) and Zn (26.5 mg g I) contents with fresh wat er. Similarly . Fe co nce ntrat ion of alfalfa cro p (359 rng g I) was significantly higher with treat ed water irri gation tha n with fresh water (325 mg Fe g I) . The co nce ntra t io n of toxic metal s suc h as Cu. Pb, Ni a nd Co in plants was be yond hazardous level s when co mpared to the establ ished sta nda rds. The concentrati on of N increased significa ntly in soils. Though P and K co nte nts showed incre asing trend using treat ed water but were not significantly different fro m that obtained with fresh water. The nutrient s in treated municipal waste water improved cro p yields demonstrating its co ntribution to meeting some of the crop nutrient need s.
{"title":"تأثير الري بمياه الصرف الصحي المعالجة على التربة والنبات","authors":"علي عبد الله الجلعود علي عبد الله الجلعود","doi":"10.4197/met.5-1.6","DOIUrl":"https://doi.org/10.4197/met.5-1.6","url":null,"abstract":"A BSTRACT. A field exp eriment was conducted to eva lua te the effect of tr eated municipal wast e wat er o n whe at and a lfa lfa cro p in a silty-clay soil. Mean dr y matter yie ld of alfalfa was 94.8 kg per plot usin g Ireated water and 76.9 kg per plot using fresh wat er and was significantl y higher in tre ated water than fresh wat er irrig ati on . The mean gr ain yield of wheat was 6.74 ton s ha . 1 with treated wat er and 5.95 tons ha . 1 with fre sh water irrigation . The contents of Fe ( 145 rng g I) and Zn (35 .5 mg g I) in wheat crop wer e significantly high er with treated water irrig ati on as compared to Fe (133 mg g I) and Zn (26.5 mg g I) contents with fresh wat er. Similarly . Fe co nce ntrat ion of alfalfa cro p (359 rng g I) was significantly higher with treat ed water irri gation tha n with fresh water (325 mg Fe g I) . The co nce ntra t io n of toxic metal s suc h as Cu. Pb, Ni a nd Co in plants was be yond hazardous level s when co mpared to the establ ished sta nda rds. The concentrati on of N increased significa ntly in soils. Though P and K co nte nts showed incre asing trend using treat ed water but were not significantly different fro m that obtained with fresh water. The nutrient s in treated municipal waste water improved cro p yields demonstrating its co ntribution to meeting some of the crop nutrient need s.","PeriodicalId":254766,"journal":{"name":"Journal of King Abdulaziz University-meteorology, Environment and Arid Land Agriculture Sciences","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122266845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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