scholarly journals Combining ability and heritability of selected rice varieties for grain yield, its components and grain quality characters

Genetika ◽  
2015 ◽  
Vol 47 (2) ◽  
pp. 559-570 ◽  
Author(s):  
Mehrzad Allahgholipour ◽  
Ezatollah Farshdfar ◽  
Babak Rabiei
Keyword(s):  
Grain Yield ◽  
Combining Ability ◽  
Grain Quality ◽  
Amylose Content ◽  
Gelatinization Temperature ◽  
Narrow Sense ◽  
Rice Varieties ◽  
Narrow Sense Heritability ◽  
Head Rice ◽  
Additive Gene

This study was conducted to determine the combining ability and heritability of rice grain yield, its components and some grain quality traits such as amylose content (AC), gelatinization temperature (GT), gel consistency (GC) and head rice recovery (HRR). The study was commenced by crossing the selected rice varieties based on a full diallel mating design. The F1 was harvested at the end of the season. In the following season, the crossed, reciprocal and parental lines were planted in randomly complete block design with three replications. Analysis of variance indicated that genotypes were significantly different for all traits. The diallel analysis by Griffing`s method showed highly significant differences for GCA for number of panicles per plant (PN), amylose content, gelatinization temperature and head rice recovery. Highly significant differences were also observed for both SCA and REC for all evaluated characters. The results showed that the grain yield (GY), number of filled grains (FGN), 100-grain weight (HGW) and GC were controlled by non-additive gene action, while the inheritance of PN, AC, GT and HRR were largely controlled by additive gene effects, although non- additive genetic components and reciprocal effect were also involved, which suggest that a selection process could be done in the early generations. The two improved lines (RI18442-1 and RI18430-46) were found to be good general combiners for GY and FGN, while the best combiners for PN was Tarom Mohali and IR50 and for HGW was RI18430-46. The best combinations for GY were RI18430-46 ? IR50, Tarom Mohali ? RI18447-2 and Daylamani ? RI18430-46. The good hybrids were Tarom Mohali ? IR50, Line23 ? RI18447-2 and Line23 ? Backcross line for AC. Narrow sense heritability showed that the GY and GC had the lowest values while the other traits had either moderate or high heritability, which indicates selection in the early generations could be done to fix the favorable genes. In present study, narrow sense heritability was high for AC and moderate for GT, PN and HRR.

scholarly journals Efficacy of Irrigation Interval after Anthesis on Grain Quality, Alkali Digestion, and Gel Consistency of Rice

Agriculture ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 325
Author(s):  
Ramin Rayee ◽  
Tran Dang Xuan ◽  
Tran Dang Khanh ◽  
Hoang-Dung Tran ◽  
Kifayatullah Kakar
Keyword(s):  
Protein Content ◽  
Grain Quality ◽  
Cooking Quality ◽  
Amylose Content ◽  
Rice Grain ◽  
Gelatinization Temperature ◽  
Rice Varieties ◽  
Irrigation Interval ◽  
Gel Consistency ◽  
Alkali Digestion

The management of amylose and protein contents and cooking quality are the main challenges in rice macronutrients and quality improvement. This experiment was conducted to examine the rice grain quality, alkali digestion, and gel consistency responses to irrigation interval after anthesis. Three rice varieties (K1, K3, and K4) were subjected to different irrigation intervals (1, 2, and 3 d) after anthesis. The findings of this study showed that the protein content was markedly increased from 6.53–6.63% to 9.93–10.16%, whilst the amylose content was decreased significantly from 22.00–22.43% to 16.33–17.56% under stressed treatments at irrigation intervals, whilst the quantity of fatty acids was not affected. The 3-d irrigation interval recorded the highest protein content but the lowest amylose value. In addition, this treatment shows lower gelatinization temperature, but it is negatively associated with hard gel consistency under irrigation interval. This study highlights that the water management following a 3-d irrigation interval from anthesis is a useful and simple treatment to improve rice nutrients and grain cooking quality.

scholarly journals Evaluating Genetic Parameters and Combining Ability of Starch Viscosity Parameters in Rice Cultivars (Oryza sativa L.)

2019 ◽  
Vol 7 (4) ◽  
pp. 665
Author(s):  
Alireza Haghighi Hasanalideh ◽  
Mehrzad Allahgholipour ◽  
Ezatollah Farshadfar
Keyword(s):  
Combining Ability ◽  
Gene Action ◽  
Oryza Sativa L ◽  
Block Design ◽  
Breeding Methods ◽  
Narrow Sense ◽  
Narrow Sense Heritability ◽  
Gene Effects ◽  
Diallel Mating Design ◽  
Additive Gene

This study was undertaken to assess the combining ability of 6 rice varieties, for viscosity parameters and determining gene action controlling Rapid Visco Analyser (RVA) characters. F2 progenies derived from a 6×6 half diallel mating design with their parents were grown in a randomized complete block design with three replications at the research farm of Rice Research Institute of Iran (RRII) in 2015. The diallel analysis by Griffing`s method indicated the involvement of additive and non-additive gene actions controlling RVA traits. For traits PV and FV RI18447-2 and IR50 were the best combiners for increasing and decreasing, respectively. Deylamani and IR50 were the best combiners for increasing and decreasing BV, respectively. Beside, due to more portion of non-additive gene action in controlling trait SV, The Gilaneh × RI18430-46, and Deylamani × RI18430-46 crosses were the best for increasing and decreasing SV, respectively. The high estimates of broad sense heritability and narrow sense heritability for BV and FV, indicated the importance of additive effects in expression of these traits. Therefore, selection base breeding methods will be useful to improve these traits and selection in the early generations could be done to fix the favourable genes. Low estimate of narrow sense heritability for SV revealed that non-additive gene effects play important role in controlling setback viscosity. So, hybrid base breeding methods will be useful to improve this trait.

scholarly journals Exploration of Possibilities to Identify Heterotic Cross Combinations in Aromatic Rice (Oryza sativa L.) for Grain Yield and Quality Parameters

2020 ◽  
pp. 92-98
Author(s):  
Mithilesh Kumar Singh ◽  
Banshidhar . ◽  
Avinash Kumar ◽  
Aman Tigga ◽  
S. K. Singh
Keyword(s):  
Grain Yield ◽  
Combining Ability ◽  
Grain Quality ◽  
Gene Action ◽  
Amylose Content ◽  
Aromatic Rice ◽  
Quality Traits ◽  
Kernel Length ◽  
Breadth Ratio ◽  
Alkali Digestion

Twenty eight crosses generated using eight aromatic rice varieties crossed in half diallel fashion were evaluated and analyzed along with parents to investigate combining ability and gene action for grain yield and various grain quality traits. The general combining ability and specific combining ability variances were significant for all the traits that indicated the role of both additive and non-additive genetic components.  Ratio of σ2gca/σ2sca< 1 indicated preponderance of non-additive gene action in the expression of these traits.  Pusa Basmati-1 was the good general combiner showing significantly high GCA effect for a maximum of seven-grain quality traits viz., milling recovery (0.81), kernel length (0.28), kernel breadth (-0.05), kernel length/breadth ratio (0.26), cooked kernel length (0.79), alkali digestion value (0.67) and amylose content (0.60) but not for yield.  Cross PSD-15×Pant Basmati-1 (P7×P8) was the good specific combiner showing high SCA effects for a maximum of eight grain quality traits viz. hulling recovery (2.76), milling recovery (2.06), kernel length (0.89), kernel length/breadth ratio (0.69), cooked kernel length (3.06), kernel elongation ratio (0.12), alkali digestion value (1.11) and amylose content (1.01) but not yield.  None of the top three crosses (Pusa Sugandh-6×PSD-15, Pusa Basmati-1×PSD-15 and Pusa Sugandh-4×Basmati-370) based on high SCA effect for grain yield plant-1exhibited as high SCA effect to fall within top three crosses on that basis for any of the grain quality traits.

scholarly journals Combining ability analysis and gene action of grain quality traits in rice (Oryza sativa L.) using line × tester analysis

2017 ◽  
Vol 9 (2) ◽  
pp. 1236-1255
Author(s):  
S. Santha ◽  
R. Vaithilingam ◽  
A. Karthikeyan ◽  
T. Jayaraj
Keyword(s):  
Combining Ability ◽  
Volume Expansion ◽  
Grain Quality ◽  
Gene Action ◽  
Amylose Content ◽  
Expansion Ratio ◽  
Quality Traits ◽  
Gelatinization Temperature ◽  
Probability Level ◽  
Kernel Length

In rice, twelve lines were crossed with five testers in a line × tester mating design and the resultant 60 hybrids along with their parents were evaluated for their combining ability effects for 15 grain quality traits. The results revealed that the ratio of GCA: SCA variances computed for all the fifteen grain quality traits showed the predominance of non-additive gene action. Among the lines, ADT (R) 47 showed significant desirable gca effects at 1% probability level (p = 0.01) for 11 grain quality traits viz., hulling percentage, milling percentage, head rice recovery percentage, kernel breadth, kernel breadth after cooking, breadth wise expansion ratio, gelatinization temperature, amylose content, gel consistency, water uptake and volume expansion ratio. Among the testers, Pusa 1460 showed significant desirable gca effects at 1% probability level (p = 0.01) for 10 grain quality traits viz., kernel length, kernel breadth, kernel length/breadth ratio, kernel length after cooking, kernel breadth after cooking, linear elongation ratio, gelatinization temperature, amylose content, water uptake and volume expansion ratio and hence they were adjudged as the best combiners for the improvement of the respective traits. Among the hybrids, the hybrids CO 47/Imp., Samba Mahsuri, ADT (R) 47/IRBB 21 and ADT (R) 46/IRBB 21 were identified as best hybrids for exploitation of grain quality traits since they revealed significant sca effects at 1% probability level (p = 0.01) for eight, eight and five grain quality traits, respectively.

scholarly journals Analysis of Combining Ability in Rice Varieties for Quantitative Traits

2019 ◽  
Vol 11 (3) ◽  
pp. 436-439
Author(s):  
Ghaffar KIANI
Keyword(s):  
Grain Yield ◽  
Combining Ability ◽  
Agronomic Traits ◽  
Block Design ◽  
Rice Varieties ◽  
Gene Effects ◽  
Breeding Programs ◽  
Grain Length ◽  
Additive Gene Effects ◽  
Additive Gene

Rice is staple food in Iran. Despite of high quality of local rice, their grain yield is low. In hybridization breeding programs, selection of suitable parents is an essential role for developing new combinations with broadens genetic diversity. Combining ability of local rice varieties namely ‘Hashemi’, ‘Sang Jo’ and ‘Tarom Deylamani’ and ‘Nemat’ was evaluated in a partial diallele analysis for agronomic traits in a randomized complete block design at Sari Agricultural Sciences and Natural Resources University. General combining ability (GCA) and specific combining ability (SCA) variances showed predominated role of additive gene effects in the inheritance of grain length. Both additive and non-additive components of genetic variances were important in the inheritance of traits like grain yield, plant height, panicle length, total grains per panicle, grain length and grain length to width. However, non-additive gene effects were seen for tiller number. Results showed that ‘Nemat’ was the best general combiner for most of characters followed by ‘Tarom Deylamani’. The cross of ‘Hashemi’ × ‘Tarom Deylamani’ was suggested to exploitation of heterosis breeding for increasing yield and its components in rice breeding programs. 

Response of wheat to post-anthesis water stress, and the nature of gene action as revealed by combining ability analysis

2017 ◽  
Vol 68 (6) ◽  
pp. 534 ◽  
Author(s):  
Md Sultan Mia ◽  
Hui Liu ◽  
Xingyi Wang ◽  
Zhanyuan Lu ◽  
Guijun Yan
Keyword(s):  
Water Stress ◽  
Grain Yield ◽  
Combining Ability ◽  
Gene Action ◽  
Relative Reduction ◽  
Stressed Condition ◽  
Additive Gene Action ◽  
Narrow Sense Heritability ◽  
Combining Ability Analysis ◽  
Additive Gene

Post-anthesis water stress is a major limitation to wheat grain yield globally. Understanding the nature of gene action of yield related traits under post-anthesis water stress will help to breed stress-resilient genotypes. Four bread wheat genotypes having varying degree of drought tolerance were crossed in a full-diallel fashion and the resultant crosses along with the parental genotypes, were subjected to water stress after the onset of anthesis in order to investigate their comparative performance and nature of gene action. Parental genotypes Babax (B) and Westonia (W) performed better compared with C306 (C) and Dharwar Dry (D) with respect to relative reduction in grain yield and related traits under stressed condition. Direct cross B × D and reciprocal cross W × C were more tolerant to water stress, while cross between C306 and Dharwar Dry, either direct or reciprocal, produced more sensitive genotypes. Combining ability analysis revealed that both additive and non-additive gene action were involved in governing the inheritance of the studied traits, with predominance of non-additive gene action for most of the traits. Among the parents, Babax and Westonia were better combiners for grain yield under stress condition. B × D in stressed condition, and C × W in both stressed and stress-free conditions, were the most suitable specific crosses. Moreover, specificity of parental genotypes as female parents in cross combination was also evident from the significant reciprocal combining ability effects of certain traits. Low to medium narrow sense heritability and high broad sense heritability were observed for most of the studied traits in both well watered and water stress conditions. The results of the study suggested that specific cross combinations with high specific combining ability involving better performing parents with high general combining ability may generate hybrids as well as segregating populations suitable for further breeding programs.

scholarly journals Gene action, combining ability and heterosis in rice genotypes of North Western Himalayas

2021 ◽  
Vol 58 (2) ◽  
pp. 272-278
Author(s):  
Hausila Prasad Singh ◽  
Daisy Basandrai ◽  
Om Prakash Raigar ◽  
Ashwani Kumar Basandrai
Keyword(s):  
Grain Yield ◽  
Combining Ability ◽  
Gene Action ◽  
Amylose Content ◽  
Western Himalayas ◽  
Additive Gene Action ◽  
Maturity Period ◽  
Biological Yield ◽  
Additive Gene ◽  
Rice Genotypes

Results of these studies revealed that both additive and non-additive gene actions were involved in the inheritance of all traits. Preponderance of additive gene action was observed in the inheritance of ten traits viz., days to 75% maturity, plant height, spikelets/panicle, grains/panicle, harvest index, grain length, grain breadth, L:B ratio, amylose content and grain yield/plant. Preponderance of non-additive gene action was observed in the inheritance of eight traits viz., days to 50% flowering, maturity period, total tillers/plant, effective tillers/plant, panicle length, spikelet fertility, biological yield/plant and test weight. Genotype HPR 3007 followed by HPR 1156 and Kasturi were identified as superior parents based on high grain yield/plant and general combining ability. HPR 3007 × HPR 2373 followed by HPR 3007 × HPR 2612, Kasturi × HPR 2612 and HPR 3007 × HPR 3010 were identified as promising crosses based on high grain yield/plant, heterosis and specific combining ability. Identified superior parents and crosses can be used as donor parents for the improvement of existing low yielding basmati cultivars.

Combining Ability of Plant Height and Yield components in Indian Mustard (Brassica junceaL.Czern & Coss.) under Salt affected Soil using Line×Tester Analysis

2016 ◽  
Vol 3 (2) ◽  
Author(s):  
SHAILESH CHAND GAUTAM ◽  
MP Chauhan
Keyword(s):  
Plant Height ◽  
Seed Yield ◽  
Combining Ability ◽  
Yield Components ◽  
Indian Mustard ◽  
Heritability Estimate ◽  
Genetic Effects ◽  
Narrow Sense ◽  
Narrow Sense Heritability ◽  
Additive Genetic Effects

Line × tester analysis of twenty lines and three testers of Indian mustard (Brassica juncea L. Czern & Coss.) cultivars were used to estimate general combining ability (GCA), specific combining ability (SCA) effects, high parent heterosis and narrow-sense heritability estimate for plant height, yield components and seed yield. Significant variance of line x tester for the traits like pods per plant and seed yield indicating non additive genetic effects have important role for controlling these traits. Significant mean squares of parents v/s crosses which are indicating significant average heterosis were also significant for all the traits except seeds per pod. High narrow-sense heritability estimates for all the traits except seeds per pod exhibited the prime importance of additive genetic effects for these traits except seeds per pod. Most of the crosses with negative SCA effect for plant height had at least one parent with significant negative or negative GCA effect for this trait. For most of the traits except pods per plant, the efficiency of high parent heterosis effect was more than SCA effect for determining superior cross combinations.

VARIABILITY OF RICE VARIETIES OF RUSSIAN BREEDING WITH LOW AMYLOSE CONTENT ON TECHNOLOGICAL GRAIN QUALITY TRAITS IN CONNECTION WITH THE NITROGEN NUTRITION LEVEL IN VEGETATION CONDITIONS IN ABINSKY DISTRICT, KRASNODAR REGION

2020 ◽  
Author(s):  
T.B. Kumeyko ◽  
◽  
N.G. Tumanian
Keyword(s):  
Grain Quality ◽  
Nitrogen Nutrition ◽  
Amylose Content ◽  
Nitrogen Fertilizers ◽  
Quality Traits ◽  
Rice Varieties ◽  
Krasnodar Region ◽  
Different Doses

The article studies the technological grain quality traits of rice varieties of Russian breeding Rapan, Flagman, Olimp, Azov, Patriot in the yield of 2017-2019 grown in the Abinsky district, Krasnodar region. Purpose of the research was to study the effect of doses of nitrogen fertilizers on the technological grain quality traits of rice varieties with a low amylose content. Rice varieties were evaluated by mass of 1000 absolutely dry grains, filminess, vitreousity, and fracture when grown with different doses of nitrogen fertilizers N60, N120. With an increase in the dose of nitrogen to N120, "the mass of 1000 absolutely dry grains", "vitreousity", "fracture" remained unchanged or the "filminess" changed. The pattern of changes in grain quality traits may indicate an intensive type of varieties Rapan and Olimp.

REACTION OF RICE VARIETIES PERMITED FOR USE IN CONNECTION WITH YIELD FORMATION WITH A HIGH GRAIN QUALITY ON LEVEL OF NITROGEN NUTRITION IN AGROLANDSCAPE ZONES OF KRASNODAR REGION

2020 ◽  
Author(s):  
N.G. Tumanian ◽  
Keyword(s):  
Grain Size ◽  
Grain Quality ◽  
Nitrogen Nutrition ◽  
Nitrogen Fertilizers ◽  
Quality Traits ◽  
Rice Varieties ◽  
Head Rice ◽  
Krasnodar Region ◽  
Yield Formation ◽  
Applied Nitrogen

An increase in the doses of nitrogen fertilizers applied during the cultivation of new rice varieties Nautilus and Yakhont in the old-deltoid and valley agrolandscape zones led to significant changes in grain quality traits. The grain size of the varieties grown in the Krasnoarsmeysky district did not change due to the level of nitrogen fertilizers, for those grown in the Abinsky district, decreased by 0.3 g in variety Nautilus and increased in variety Yakhont with increased dose of applied nitrogen. The vitreousity of grain increased in Nautilus in the Krasnoarmeysky district by 2%, in Abinsky - by 7%; in the variety Yakhont - increased by 2% and practically did not change, respectively. A tendency toward a decrease in grain fracture in the Krasnoarmeysky district and an increase in head rice content in the variety Nautilus in the Krasnoarmeysky and Abinsky districts was noted.

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