Yield of F1, F2 and F3 hybrids of rice (Oryza sativa L.)

Davis, M. D.; Rutger, J. N.

doi:10.1007/bf00041596

Cited by 15 publications

(5 citation statements)

References 8 publications

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“…In three cases in which two family sets were available, they are distinguished as dots and circles . (Materials and sources: (1) barley in Canada (Choo et al ., 1986) ; (2) wheat in UK (Lupton & Whitehouse, 1957) ; (3) wheat in USA (Busch et al ., 1974) ; (4) Oats in Canada (Sampson, 1976) ; (5) rice in USA (Davis & Rutger, 1976); (6) potatoes in Canada (Tam & Tai, 1983) ; (7) potatoes in Holland (Mans, 1969) ; (8) sugarcane in USA (Miller, 1977) ; (9) sugarcane in Barbados (Julien, pers. comm.)…”

Section: Practical Proceduresmentioning

confidence: 99%

Family selection in plant breeding

Simmonds¹

1996

Euphytica

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Plant breeding programmes rarely take explicit practical account of the two sources of genetic variance, namely between and within full-sib families, even though existence of these two sources of variation has long been recognised . This paper refers to inbred and clonal crops, not to outbred, seed-propagated species . Theory suggests that the two variances should be of similar size, sometimes very similar. Good comparisons have never been made because variance within families is laborious to estimate . It is proposed that sets of families be assayed as to means in formal trials and only the best few, judged against standards as having potential for superior segregates, should be exploited thoroughly. The calculation as to approximate equality of genetic variances between and within families is important . The vast majority of families should probably be discarded without further ado, and at considerable economy. Sensible decision-making requires an economic component in order to exploit the trade-off between the cost of the initial trial and families discarded without further cost . The object of this paper is a critical review of practical principles, not a general review of a large and diffuse literature .

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Section: Practical Proceduresmentioning

confidence: 99%

Family selection in plant breeding

Simmonds¹

1996

Euphytica

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“…In rice, heterosis was first reported by Jones (1926) who observed that some F 1 hybrids had more culms and higher yield than their parents. Earlier, several researchers have reported that through the development of F 1 rice hybrids existence of significant heterosis could be exploited commercially (Chang et al 1973;Davis and Rutger 1976;Virmani and Edwards 1983;Kim and Rutger 1988). Three principal genetic models namely, dominance, over-dominance, and epistasis have been suggested as explanation for the hybrid phenotype (Crow 1952;Tsaftaris 1995).…”

Section: Introductionmentioning

confidence: 99%

Variability and heterosis of seed vigour traits in hybrid rice (Oryza sativa L.)

Kumari,

Chakrabarty,

Paul

et al. 2023

IJGPB

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The cultivars with high seed vigor are desirable for farmers to establish optimum plant stand under sub-optimal field conditions. The basic physiological processes are required to understand the hybrid vigor phenomenon, particularly for seed vigor and associated characteristics. Limited information on seed vigor in rice hybrids and their parental lines in relation to physical, physiological and biochemical characters are available. Three released rice hybrids and their respective female (A), maintainer (B) and restorer/male (R) lines were assessed for physical, physiological and biochemical traits related to seed vigor. Significant differences were found among the three rice hybrids and its parental lines for 100 seed weight, weight of kernel, husk, endosperm and embryo. Germination percentage, seed vigor index-I and seed vigor index-II were highly significant among female and male lines and hybrids in fresh seed because of potential heterosis in hybrids. Higher activity of reactive oxygen species (ROS) scavenging enzymes such as catalase (CAT), peroxidase (POD) and superoxide dismutase (SOD) in hybrids was estimated as compared to that of their parental lines. The study showed the presence of the genetic variability, phenotypic, genotypic and environmental coefficient of variation, heritability, genetic advance and heterosis for seed vigor traits in three rice hybrids and its parental lines. A favorable combination of seed vigor traits would be useful to develop desired variety and hybrids with superior seed vigour for realizing higher grain yield and better adaptability in any condition.

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“…"The usual method for raising hybrids is to establish many inbred lines, make inter-cross and determine which hybrids are most productive in a given locality. (Davis and Rutger, 1976) [7] and (Virmani et al 1981) [45] reviewed on heterosis in various agronomic traits of rice. Virmani et al, 1981) [45] reported a significant positive mid and high parent heterosis for yield ~ 3493 ~ ranging from 1.9 to 3.69% in rice.…”

Section: Introductionmentioning

confidence: 99%

A review on nutritional composition and effects of drying methods of different mulberry species

Adarsh¹

2023

Pharma Innovation

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Heterosis or hybrid vigor is a natural phenomenon where by hybrid off spring of genetically diverse individuals show advanced physical and purposeful traits relatively to their parents and off spring. Heterosis has been increasingly implemented in crop developed for nearly a century, with the purpose of developing greater energetic, better yielding and better appeared cultivars. In this review present and examine three classes of crop heterosis usage: intraspecific heterosis, intersubspecific heterosis and widehybridization heterosis, with specific recognition on polyploidy species. Different pollination control systems used to reproduce for heterosis also are comparatively analyzed. Finally issues worried in heterosis studies and crop development are to be highlighted. In the present review the ultimate goal to provide insight into first class practices for amplifying heterosis ability.

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Yield of F1, F2 and F3 hybrids of rice (Oryza sativa L.)

Cited by 15 publications

References 8 publications

Family selection in plant breeding

Family selection in plant breeding

Variability and heterosis of seed vigour traits in hybrid rice (Oryza sativa L.)

A review on nutritional composition and effects of drying methods of different mulberry species

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