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81. Heterosis and combining ability for yield and other agronomic traits in Triticale

Author:
Ferrari, Enzo; Picca, Aurora; Domínguez, Rodolfo; Paccapelo, Héctor
Source:
Open Agriculture 2018 v.3 no.1 pp. 38-45
ISSN:
2391-9531
Subject:
spikelets,   etc   ; Triticosecale; additive gene effects; agronomic traits; flowering; general combining ability; genes; genotype; grain yield; harvest index; heterosis; hybrids; parents; reciprocal crosses; specific combining ability; triticale; Argentina;     Show all 17 Subjects
Abstract:
... The estimation of genetic parameters such as heterosis (Mh), heterobeltiosis (Hh), general combining ability (GCA) and specific combining ability (SCA) allows inferences about the predominant action of the genes, indicates the appropriate selection strategy, and facilitates identification of the best parents. The present study was carried out using a diallel cross system among five genotypes of Tr ...
DOI:
10.1515/opag-2018-0005

82. Wheat lines exhibiting variation in tolerance of Septoria tritici blotch differentiated by grain source limitation

Author:
Collin, F.; Bancal, P.; Spink, J.; Appelgren, P. Kock; Smith, J.; Paveley, N.D.; Bancal, M-O.; Foulkes, M.J.
Source:
Field crops research 2018 v.217 pp. 1-10
ISSN:
0378-4290
Subject:
spikelets,   etc   ; Mycosphaerella graminicola; breeding; crops; disease outbreaks; fertilizer application; field experimentation; filling period; fungicides; genotype; labor; leaves; nitrogen; nitrogen fertilizers; wheat; Europe;     Show all 16 Subjects
Abstract:
... Septoria tritici blotch (STB) is the most damaging disease of wheat crops in Europe. Because of the partial nature of genotypic resistance or the increasing resistance against fungicides, the tolerance, i.e. maintaining yield in the presence of expressed disease, is a relevant alternative. Tolerance is generally estimated through the yield loss per unit of source reduction, contrasts of tolerance ...
DOI:
10.1016/j.fcr.2017.11.022

83. Growth, yield and silicon uptake of rice (Oryza sativa) as influenced by dose and timing of silicon application under water-deficit stress

Author:
Ullah, Hayat; Luc, Phung Duc; Gautam, Anita; Datta, Avishek
Source:
Archiv für Acker- und Pflanzenbau und Bodenkunde 2018 v.64 no.3 pp. 318-330
ISSN:
1476-3567
Subject:
spikelets,   etc   ; Oryza sativa; application timing; field capacity; grain yield; heading; panicles; rice; silicon; soil water; water stress; water supply;     Show all 12 Subjects
Abstract:
... Two experiments were conducted to evaluate the effects of dose and timing of silicon (Si) application on rice under limited water supply. The treatments for the first study included five Si doses (0, 75, 150, 300 and 600 kg Si ha–¹) under three soil moisture conditions (100%, 75% and 50% field capacity). For the second study, the treatments were four Si application timings [100% basal, 50% basal + ...
DOI:
10.1080/03650340.2017.1350782

84. Genetic parameters estimation in quantitative traits of a cross of triticale (x Triticosecale W.)

Author:
Ferrari, Enzo David; Ferreira, Víctor Aníbal; Grassi, Ezequiel Martín; Picca, Aurora María Teresita; Paccapelo, Héctor Antonio
Source:
Open Agriculture 2018 v.3 no.1 pp. 25-31
ISSN:
2391-9531
Subject:
spikelets,   etc   ; Triticosecale; breeding; epistasis; genes; genetic improvement; grain yield; heritability; heterosis; hybrids; inbreeding depression; models; pastures; quantitative traits; seeds; triticale; wheat; winter; Argentina;     Show all 19 Subjects
Abstract:
... Triticale (x Triticosecale Wittmack) is a cereal used in Argentina as a winter seasonal pasture or feeding grain. Efforts made on breeding have led to varieties with potential grain yield similar or greater than with wheat. The aim of this study was to determine the gene effects, heritability, genetic gain, heterosis and inbreeding depression in various quantitative traits of a cross from contrast ...
DOI:
10.1515/opag-2018-0003

85. Epichloë fungal endophyte colonisation and seed quality in developing grass florets – effect of different fertiliser applications

Author:
Wang, Muyu; McGill, Craig R.; Southward, Robert C.; He, Xiong Zhao; Card, Stuart D.; Rolston, M. Philip
Source:
New Zealand journal of agricultural research 2018 v.61 no.1 pp. 27-41
ISSN:
1175-8775
Subject:
spikelets,   etc   ; Lolium perenne; ammonium; animal performance; endophytes; fertilizer application; florets; forage; fungi; grasses; insects; lawns and turf; markets; nitrates; nitrogen; pastures; potassium; seed germination; seed quality; New Zealand;     Show all 20 Subjects
Abstract:
... Perennial ryegrass is an important pasture, forage and turf plant, and in New Zealand, it is commonly and intentionally inoculated with selected beneficial endophyte strains. These endophytes provide enhanced traits to their host grasses with AR37, a market leading strain, conferring a broad spectrum of insect deterrence coupled with excellent animal performance. The effect of different nitrogen f ...
DOI:
10.1080/00288233.2017.1383275

86. Relationship of ROS accumulation and superoxide dismutase isozymes in developing anther with floret fertility of rice under heat stress

Author:
Zhao, Qian; Zhou, Lujian; Liu, Jianchao; Du, Xiaoxia; Asad, Muhammad-Asad-Ullah; Huang, Fudeng; Pan, Gang; Cheng, Fangmin
Source:
Plant physiology and biochemistry 2018 v.122 pp. 90-101
ISSN:
0981-9428
Subject:
spikelets,   etc   ; catalase; climatic factors; cultivars; florets; gene expression regulation; genes; grain yield; heat stress; heat tolerance; isozymes; leaves; malondialdehyde; meiosis; pollen; reactive oxygen species; rice; superoxide dismutase; temperature; viability;     Show all 20 Subjects
Abstract:
... High temperature (HT) at meiosis stage is one of most important environment constraint affecting spikelet fertility and rice yield. In this paper, the effects of HT exposure at meiosis stage on the ROS (reactive oxygen species) accumulation, various superoxide dismutase (SOD, EC1.15.1.11) isozymes in developing anther, and its relationship with HT-induced decline in pollen viability and floret fer ...
DOI:
10.1016/j.plaphy.2017.11.009