Combining Ability Estimates and Heterosis for Yield and Fiber Quality of Cotton in Line x Tester Design

The objective of this study was to facilitate the selection in cotton breeding program and estimate the general combining ability (GCA) of the parents and specific combining ability (SCA) of hybrids considered for the development of high yielding and better fiber quality in early generations. The study was carried out at the Southeastern Anatolia Agricultural Research Institute during 2006 and 2007 cotton growing season. Seven cotton lines (which are known as high quality) and three testers (which are known as well adapted and high yielding) were crossed in a line x tester mating design in 2006. Ten genotypes and 21 F1 hybrids were planted in the randomized complete block design with three replications at the same experimental area in 2007. The variance due to GCA and SCA were highly significant for all the traits studied. This indicated that both additive and non-additive gene effects were responsible for the investigated characters. From the trial it was found that in the population, fiber length, fiber fineness and fiber elongation were influenced by additive gene effects while seed cotton yield, fiber yield, ginning percentage, fiber strength and fiber uniformity were influenced by non-additive gene effects. Among the parents FiberMax 832, Teks, Stoneville 453 and MaraÅŸ 92 for seed cotton yield and fiber yield; AÅŸkabat 71 and Giza 45 for fiber length and fiber strength; AÅŸkabat 71 for fiber fineness and fiber uniformity were detected with higher general combining ability. Most of the parents except AÅŸkabat 71, Giza 45 and MaraÅŸ 92 exhibited GCA for ginning percentage. SCA was significant for FiberMax 832 x Stoneville 453, Tam 94 L 25 x MaraÅŸ 92 and Teks x Stoneville 453 hybrid combinations for yield with acceptable fiber quality

Post-discharge heart failure monitoring program in Turkey: Hit-PoinT

Objective: The aim of this study was to assess the efficacy and feasibility of an enhanced heart failure (HF) education with a 6-month telephone follow- up program in post-discharge ambulatory HF patients. Methods: The Hit-Point trial was a multicenter, randomized, controlled trial of enhanced HF education with a 6-month telephone follow-up program (EHFP) vs routine care (RC) in patients with HF and reduced ejection fraction. A total of 248 patients from 10 centers in various geographical areas were randomized: 125 to EHFP and 123 to RC. Education included information on adherence to treatment, symptom recognition, diet and fluid intake, weight monitoring, activity and exercise training. Patients were contacted by telephone after 1, 3, and 6 months. The primary study endpoint was cardiovascular death. Results: Although all-cause mortality didn't differ between the EHFP and RC groups (p=NS), the percentage of cardiovascular deaths in the EHFP group was significantly lower than in the RC group at the 6-month follow up (5.6% vs. 8.9%, p=0.04). The median number of emergency room visits was one and the median number of all cause hospitalizations and heart failure hospitalizations were zero. Twenty-tree percent of the EHFP group and 35% of the RC group had more than a median number of emergency room visits (p=0.05). There was no significant difference regarding the median number of all-cause or heart failure hospitalizations. At baseline, 60% of patients in EHFP and 61% in RC were in NYHA Class III or IV, while at the 6-month follow up only 12% in EHFP and 32% in RC were in NYHA Class III or IV (p=0.001). Conclusion: These results demonstrate the potential clinical benefits of an enhanced HF education and follow up program led by a cardiologist in reducing cardiovascular deaths and number of emergency room visits with an improvement in functional capacity at 6 months in post-discharge ambulatory HF patients.Türk Kardiyoloji Derneği Kalp Yetmezliği Çalışma Grub

Determination of Heterotic Effects in Breeding of Multi Adversity Resistance in Cotton (Gossypium hirsutum L.)

WOS: 000279315000001This study was carried out to determine heterosis and heterobeltiosis values of F(1) hybrid combinations obtained from Multi Adversity Resistance breeding program and selection of promising hybrids in early generations, and to find out contributions of parents to the heterosis and heterobeltiosis values and ensuring usage of these promising parents in the next cotton breeding programs. In this study, 4 cotton varieties (Tamcot CD 3H, Tamcot HQ 95, Tamcot Sphinx and Tamcot Luxor), developed by Multi Adversity Resistance breeding program, 3 commercial cotton varieties (Maras 92, Stoneville 453 and Sayar 314) and 21 F(1) hybrids obtained by 7 x 7 half diallel quantitative analysis method. Investigation was conducted in the South East Anatolia Agricultural Research Institute's experimental area. The results of the study indicated that there were significant heterotic effects for most of investigated characteristics. F1 hybrids had higher values than parents in terms of investigated characteristics. The seed cotton yield had the highest heterosis and heterobeltiosis values. From the study; 3x6 (Stoneville 453 x Tamcot Sphinx), 3x4 (Stoneville 453 x Tamcot CD 3H) and 2x7 (Sayar 314 x Tamcot Luxor) hybrid combinations were determined as the most promising hybrids in terms of all of investigated characteristics. Contributions of parents to the heterosis and heterobeltiosis values for all investigated characters were detected. The results showed that Stoneville 453, Tamcot Luxor and Tamcot Sphinx had the most contribution to the seed cotton yield, respectively

Correlations between some physio-morphological formations and yield on okra and normal leaf cottons

Pamukta yaprağın şekli, büyüklülüğü, sayısı ve alanı bitkinin fotosentetik faaliyetlerini ve dolayısıyla verimliliğini etkileyen faktörlerdendir. Çalışmada, okra ve normal olmak üzere iki farklı yaprak şekline sahip dört pamuk (Gossypium hirsutum L.) çeşidinde yaprak sayısı, ortalama tek yaprak alanı, yaprak alanı indeksi, yaprak klorofil miktarı, bitki boyu ve kütlü pamuk verimi özellikleri incelenmiştir. Okra ve normal yapraklı çeşitlerde, incelenen özelliklerin kütlü pamuk verimi ile olan ilişkileri, korelasyon analizleri yapılarak belirlenmiştir. Normal yapraklı çeşitler, ortalama tek yaprak alanı, yaprak alan indeksi, bitki boyu, meyve dalı sayısı ve kütlü verimi yönünden daha iyi sonuçlar vermişlerdir. En yüksek yaprak klorofil değeri, 50.54 ile Maraş 92 çeşidinden en düşük ise 46.44 ile Dicle 2000 çeşidinden elde edilmiştir. Kütlü pamuk verimi yönünden Maraş 92 pamuk çeşidi, 509.93 kg.da-1 ile en yüksek değere, Siokra ¼ okra yapraklı pamuk çe?idi ise 365.56 kg.da-1 ile en düşük değere sahip olmuştur. incelenen özellikler arası ilişkilerde ise, pamuk kütlü verimi ile yaprak sayısı arasında olumsuz ve önemli; yaprak alanı indeksi ile olumlu ancak önemsiz ilişkiler saptanmıştır.The leaf shape, size, area and number of leaf per plant of cotton are factors which effect seed yield via photosynthetic activity. In the study, the four cotton cultivars, two normal leaf shape and two okra leaf shape, were used as material. The number of leaf, mean of individual leaf area, leaf area index, leaf chlorophyll content, plant height, number of monopodial and sympodial branches and cotton seed yield were investigated. The coefficient correlation between cotton seed yield and all characters was analyzed. The normal leaf shape cultivars were the higher than okra leaf shape cultivars for mean of individual leaf area, leaf area index, plant height, number of sympodial branches. The highest chlorophyll content (50.54) was for Maraş 92, but Dicle 2000 had the minimum content with 46.44. Maraş 92 variety, okra leaf shape cotton cultivar, for cotton seed yield was the highest with 509.93 kg da-1, Siokra ¼ had the minimum cotton seed yield (365.56). Seed yield was pozitive correlation with leaf area index, but was negative correlation with number of leaf per plant

Path Coefficient Analysis between seed cotton yield and some characters in cotton (Gossypium hirsutum L.)

Abstract: This study was carried out to determine direct and indirect effects of some characters (single leaf area, leaf SPAD value, number of nods, number of sympodial branches, number of monopodial branches, single boll weight, number of bolls) on seed cotton yield. The experiment was carried out with four cotton varieties, two of which okra-leaf (Adana 98, Siokra 1/4) and two of which normal-leaf (Teks and Stoneville 453) cotton (Gossypium hirsutum L.) and was conducted the randomized block design with 4 replications. In order to increase seed cotton yield in the studies of breeding program and selection orderly leaf SPAD value, number of sympodial branches, single boll weight, number of monopodial branches and number of bolls characters determined that must be high. Results showed that in order to increase seed cotton yield in the studies of breeding program and selection the highness of leaf SPAD value, number of sympodial branches, single boll weight, number of monopodial branches and number of bolls characters should be considered important. Key words: Yield, Path Coefficient, Correlation, Cotton PDF of full length paper is available online * Corresponding author: [email protected] Introduction There have been many factors which effect the cotton yield, like all plants. With regard to plant breeding studies, it is important that locations where plants are grown and determination of some traits which effect morphological and physiological characters of plants. Therefore, determination of direct and indirect relations among the traits is important in order to determine aspect of plant selection criteria

Heterotic Effects and Analyses of Correlation Relating to Some Characters on Cotton

WOS: 000262449900008This research was conducted at the Dicle University Faculty of Agriculture Experimental Area of Field Crops. The objectives of the study were to investigate the heterotic effects of earliness and agronomical and quality characters on F(1) and F(2) generations of cotton plant. In 2003, F(1) generation, and in 2004 F(2) generation were obtained, and in 2005, F(1) and F(2) generations were grown with parents in randomized block design with three replications. The highest heterosis was observed in the monopodial branch (-58.33%), and number of first sympodial branch (-30.85%), height of first sympodial branch (-13.87%), date of first square (-13.87%). However, the highest F(2) depression and F(2) deviations were determined the same characters

Path Coefficient Analysis between seed cotton yield and some characters in cotton (Gossypium hirsutum L.)

WOS: 000281449300020This study was carried out to determine direct and indirect effects of some characters (single leaf area, leaf SPAD value, number of nods, number of sympodial branches, number of monopodial branches, single boll weight, number of bolls) on seed cotton yield. The experiment was carried out with four cotton varieties, two of which okra-leaf (Adana 98, Siokra 1/4) and two of which normal-leaf (Teks and Stoneville 453) cotton (Gossypium hirsutum L.) and was conducted the randomized block design with 4 replications. In order to increase seed cotton yield in the studies of breeding program and selection orderly leaf SPAD value, number of sympodial branches, single boll weight, number of monopodial branches and number of bolls characters determined that must be high. Results showed that in order to increase seed cotton yield in the studies of breeding program and selection the highness of leaf SPAD value, number of sympodial branches, single boll weight, number of monopodial branches and number of bolls characters should be considered important.Southeastern Anatolian Agriculture Research InstituteTurkiye Cumhuriyeti Kalkinma BakanligiThis work was conducted Experimental Area of Southeastern Anatolian Agriculture Research Institute. We would like to thank them for support

Correlations between Some Physio-Morphological Formations and Yield on Okra and Normal Leaf Cottons

WOS: 000207576400003The leaf shape, size, area and number of leaf per plant of cotton are factors which effect seed yield via photosynthetic activity. In the study, the four cotton cultivars, two normal leaf shape and two okra leaf shape, were used as material. The number of leaf, mean of individual leaf area, leaf area index, leaf chlorophyll content, plant height, number of monopodial and sympodial branches and cotton seed yield were investigated. The coefficient correlation between cotton seed yield and all characters was analyzed. The normal leaf shape cultivars were the higher than okra leaf shape cultivars for mean of individual leaf area, leaf area index, plant height, number of sympodial branches. The highest chlorophyll content (50.54) was for Maras 92, but Dicle 2000 had the minimum content with 46.44. Maras 92 variety, okra leaf shape cotton cultivar, for cotton seed yield was the highest with 509.93 kg da(-1), Siokra (1)/(4) had the minimum cotton seed yield (365.56). Seed yield was pozitive correlation with leaf area index, but was negative correlation with number of leaf per plant

Correlations and Path Coefficient Analysis Between Leaf Chlorophyll Content Yield and Yield Components in Cotton (G.hirsutum L.) under Drought Stress Conditions

In this study 20 genotypes, including 2 cultivars and 18 advanced cotton lines were grown under induced drought stress conditions. Twenty cotton genotypes were evaluated in terms of leaf chlorophyll content, number of boll per plant, boll weight, seed cotton weight per boll, number of monopodial branches, number of sympodial branches, 100 seed weight, plant height, ginning out turn and seed cotton yield. According to results of analysis of variance there were significant differences among the genotypes in terms of leaf chlorophyll content, seed cotton weight per boll, 100 seed weight, plant height and ginning out turn. There were significant correlations between leaf chlorophyll content, seed cotton yield (r= 0.231*) and ginning out turn (r= 0.320**), however positive but non- significant correlations were observed among leaf chlorophyll content and other investigated characteristics except for plant height and 100 seed weight. Phenotypic correlations were also partitioned into path coefficients, keeping seed cotton yield as the resultant variable and other components as causals. Path analysis revealed that leaf chlorophyll content, plant height, number of monopodial branches, ginning out turn and 100 seed weight had direct effect on seed cotton yield under drought stress conditions. Partitioning through path coefficient analysis revealed that leaf chlorophyll content may be one of the indicators in the improvement of seed cotton yield in cotton under drought stress conditions

Pamukta (Gossypium hirsutum L.) lif verimi ve verim öğleri bakımından üstün anaç ve melez kombinasyonların belirlenmesi

2000 yılında, Gossypium hirsutum L. türünden 5 çeşit (Sure Grow 125, Sure Grow 404, Sure Grow 501, Sure Grow 1001 and Çukurova 1518) ana, 7 hat ise (PAUM 400, PAUM 401, PAUM 402, PAUM 403, PAUM 404, PAUM 405 ve PAUM 406) baba olacak şekilde, line x tester melezleme yöntemine göre Çukurova Üniversitesi, Pamuk Araştırma ve Uygulama Merkezinde birbirleriyle melezlenmiştir. Elde edilen 35 F, melezi ve 12 anaç, 2001 yılında tesadüf blokları deneme desenine göre üç tekerrürlü olarak ekilmiş ve lif verimi ve verim öğeleri bakımından değerlendirilmiştir. Elde edilen verilere, line x tester analizi uygulanmıştır. Çalışmada anaçların genel, melezlerin özel uyum yeteneklerinin belirlenmesi, ve böylece erken generasyonlarda lif verimi ve verim öğeleri yönünden üstün anaçların ve melez kombinasyonların seçilmesi amaçlanmıştır. Sonuç olarak, ebeveyn ve hibridlerin genel ve özel uyum yetenekleri, lif verimi ve verim öğeleri bakımından önemli farklılıklar oluşturmuştur. Ebeveynler arasında, PAUM 403 koza sayısı; Çukurova 1518, PAUM 400, PAUM 403, PAUM 405 ve PAUM 406 lif verimi; Sure Grow 501, Çukurova 1518, PAUM 401 ve PAUM 405 çırçır randımanı; Sure Grow 125, PAUM 400 ve PAUM 403 100 tohum ağırlığı; Çukurova 1518, PAUM 400, PAUM 405 ve PAUM 406 koza kutlu pamuk ağırlığı yönünden en yüksek genel uyum yeteneğine sahip olmuşlardır. Sure Grow 501 x PAUM 400 koza sayısı yönünden özel kombinasyon kabiliyeti önemli tek melez kombinasyon olarak tespit edilmiştir. Ayrıca, bu melez kombinasyon en yüksek lif verimine de sahiptir. Elde edilen bu sonuç, ileriki generasyonlarda amaca yönelik bitkilerin, bu melez kombinasyondan seçilme şansının daha yüksek olduğunu göstermektedir.The purpose of this study was to determine estimates of the general combining ability of parents and the specific combining ability of hybrids needed to develop high yielding cotton cultivars. Five cotton lines (Sure Grow 125, Sure Grow 404, Sure Grow 501, Sure Grow 1001 and Çukurova 1518) and 7 testers (PAUM 400, PAUM 401, PAUM 402, PAUM 403, PAUM 404, PAUM 405 and PAUM 406) were crossed in a line x tester mating system at Çukurova University, Cotton Research and Application Center, Adana, Turkey, in 2000. Twelve genotypes and 35 F] hybrids were sown in a randomized complete block design with 3 replications at the same center in 2001. The general combining ability variance of parents and the specific combining ability variance of hybrids in respect to lint yield and yield components were estimated via line x tester analysis. Line x tester analysis revealed significant general and specific combining ability effects for lint yield, 100-seed weight, seed cotton weight per boll, lint percentage and boll number per plant. The following lines had higher general combining abilities than the others: PAUM 403 for boll number per plant; Çukurova 1518, PAUM 400, PAUM 403, PAUM 405 and PAUM 406 for lint yield; Sure Grow 501, Çukurova 1518, PAUM 401 and PAUM 405 for lint percentage; Sure Grow 125, PAUM 400, PAUM 403 for 100-seed weight; and Çukurova 1518, PAUM 400, PAUM 405 and PAUM 406 for seed cotton weight per boll. Only Sure Grow 501 x PAUM 400 F, showed significant specific combining ability effects for bolls/plant. It yielded more total lint than the others. This Fj achieved its high yield by producing many boll numbers per plant, while the others produced fewer