scholarly journals GRAIN SIZE AND NUMBER1 Negatively Regulates the OsMKKK10-OsMKK4-OsMPK6 Cascade to Coordinate the Trade-off between Grain Number per Panicle and Grain Size in Rice

2018 ◽  
Vol 30 (4) ◽  
pp. 871-888 ◽  
Author(s):  
Tao Guo ◽  
Ke Chen ◽  
Nai-Qian Dong ◽  
Chuan-Lin Shi ◽  
Wang-Wei Ye ◽  
...  
Keyword(s):  
Grain Size ◽  
Grain Number ◽  
Trade Off ◽  
Grain Number Per Panicle

scholarly journals The da1 mutation in wheat increases grain size under ambient and elevated CO 2 but not grain yield due to trade‐off between grain size and grain number

2021 ◽  
Author(s):  
Isabel Mora‐Ramirez ◽  
Heiko Weichert ◽  
Nicolaus Wirén ◽  
Claus Frohberg ◽  
Stefanie Bodt ◽  
...  
Keyword(s):  
Grain Size ◽  
Grain Yield ◽  
Grain Number ◽  
Trade Off

scholarly journals The da1 mutation in wheat increases grain size under ambient and elevated CO2 but not grain yield due to trade-off between grain size and grain number

2020 ◽  
Author(s):  
Isabel Mora-Ramirez ◽  
Heiko Weichert ◽  
Nicolaus von Wiren ◽  
Claus Frohberg ◽  
Stefanie De-Bodt ◽  
...  
Keyword(s):  
Grain Size ◽  
Grain Yield ◽  
Elevated Co2 ◽  
Grain Number ◽  
Trade Off

scholarly journals Heterosis dan Heterobeltiosis Hasil Gabah Serta Korelasinya Terhadap Pertumbuhan Padi Hibrida

2019 ◽  
Vol 15 (2) ◽  
pp. 92-100
Author(s):  
Nurwulan Agustiani ◽  
Sujinah Sujinah ◽  
Bayu P Wibowo ◽  
Satoto Satoto
Keyword(s):  
Leaf Area ◽  
Plant Height ◽  
Block Design ◽  
Tiller Number ◽  
F1 Hybrids ◽  
Grain Number ◽  
Average Value ◽  
Positive Heterosis ◽  
Growth Characters ◽  
Grain Number Per Panicle

Heterosis in F1-hybrids is very closely related to processes during plant growth. The purpose of this study was to obtain information on some growth characters that supported positive heterosis for yield.  The experiment was carried out at KP. Sukamandi on the rainy season in 2016, used a Randomized Block Design with three replications. The material used in this study were four superior hybrid varieties (Hipa 9, Hipa 18, Hipa 19, and Hipa East Java 2) and their parents (maintainer and restorer strains). The results showed that the four materials tested had positive heterosis values ​​with an average value of 4.23-25.03% for the characters of plant height, tiller number, grain number per panicle, weight of 1000 grains, and yield. Heterobeltiosis values ​​ranged from 2.06% to 13.62% for the characters of plant height, tiller number, grain number per panicle, and yield.  Growth characters that were positively correlated to yield increase were plant height, leaf area in the primordia phase, and weight of 1000 grains. The four hybrid materials tested had similar leaf area per clump in the primordia phase, but only Hipa Jatim 2 still had the highest leaf area in the physiological cooking phase. All four hybrids had better leaf thickness characteristics than their parents. F1 average showed increased number of grain per panicle compared to the two parents, especially in Hipa 18 and Hipa 19, which had a higher weight per 1000 grains than the two parents. Keywords: hybrids, rice, heterosis, heterobeltiosis   ABSTRAK Heterosis pada F1-hibrida sangat berkaitan erat dengan proses-proses selama pertumbuhan tanaman. Tujuan penelitian ini adalah untuk mendapatkaninformasibeberapa karakter pertumbuhan yang mendukung heterosis positif terhadap hasil. Percobaan dilaksanakan di KP. Sukamandi pada musim hujan 2016, menggunakan Rancangan Acak Kelompok dengan tiga ulangan. Materi yang digunakan dalam penelitian ini adalah empat varietas unggul hibrida (Hipa 9, Hipa 18, Hipa 19, dan Hipa Jatim 2) dan tetuanya (galur maintainer dan restorer). Hasil penelitian menunjukkan bahwa keempat materi yang diuji mempunyai nilai heterosis positif dengan nilai rata-rata 4,23-25,03% pada karakter tinggi tanaman, jumlah anakan, jumlah gabah per malai, bobot 1000 butir, dan hasil. Nilai heterobeltiosis berkisar antara 2,06% sampai 13,62% pada karakter tinggi tanaman, jumlah anakan, jumlah gabah per malai, dan hasil. Karakter-karakter pertumbuhan yang berkorelasi positif terhadap peningkatan hasil yaitu tinggi tanaman, luas daun pada fase primordia, dan bobot 1000 butir. Keempat materi hibrida yang diuji mempunyai luas daun per rumpun yang setara pada fase primordia, namun hanya Hipa Jatim 2 yang masih mempunyai luas daun tertinggi pada fase masak fisiologis,.  Keempatnya mempunyai karakter ketebalan daun yang lebih baik dibanding tetuanya. Rata-rata F1 menunjukkan perbaikan jumlah gabah per malai dibanding kedua tetuanya, terlebih pada Hipa 18 dan Hipa 19 yang juga mempunyai bobot 1000 butir lebih tinggi dibandingkan kedua tetuanya. Kata kunci: hibrida, pada, heterosis, heterobeltiosis

Kornanzahl automatisch bestimmen / Measuring Grain Number and Grain Size Automatically

1998 ◽  
Vol 40 (5) ◽  
pp. 191-193
Author(s):  
Josef Helmrich ◽  
Jörg Lamprecht
Keyword(s):  
Grain Size ◽  
Grain Number

Trade-off between grain weight and grain number in wheat depends on GxE interaction: A case study of an elite CIMMYT panel (CIMCOG)

2018 ◽  
Vol 92 ◽  
pp. 17-29 ◽  
Author(s):  
Alejandro Quintero ◽  
Gemma Molero ◽  
Matthew P. Reynolds ◽  
Daniel F. Calderini
Keyword(s):  
Grain Weight ◽  
Grain Number ◽  
Trade Off ◽  
Gxe Interaction

scholarly journals Effect of qGN4.1 QTL for Grain Number per Panicle in Genetic Backgrounds of Twelve Different Mega Varieties of Rice

Rice ◽  
2018 ◽  
Vol 11 (1) ◽  
Author(s):  
Vijay Kumar Singh ◽  
Ranjith Kumar Ellur ◽  
Ashok Kumar Singh ◽  
M. Nagarajan ◽  
Brahma Deo Singh ◽  
...  
Keyword(s):  
Grain Number ◽  
Grain Number Per Panicle

A novel repetitive continuous welding extrusion for refining grain size and evading strength-ductility trade-off in AZ31 magnesium alloy

2019 ◽  
Vol 753 ◽  
pp. 192-196 ◽  
Author(s):  
Huan Cai ◽  
Jiamin Hu ◽  
Fulin Jiang ◽  
Dingfa Fu ◽  
Jie Teng ◽  
...  
Keyword(s):  
Grain Size ◽  
Magnesium Alloy ◽  
Az31 Magnesium Alloy ◽  
Trade Off

scholarly journals Sorghum MSD3 Encodes an ω-3 Fatty Acid Desaturase that Increases Grain Number by Reducing Jasmonic Acid Levels

2019 ◽  
Vol 20 (21) ◽  
pp. 5359 ◽  
Author(s):  
Lavanya Dampanaboina ◽  
Yinping Jiao ◽  
Junping Chen ◽  
Nicholas Gladman ◽  
Ratan Chopra ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Jasmonic Acid ◽  
Linolenic Acid ◽  
Sequence Data ◽  
Fatty Acid Desaturase ◽  
Fold Increase ◽  
Cereal Crops ◽  
Grain Number ◽  
Genomic Editing ◽  
Grain Number Per Panicle

Grain number per panicle is an important component of grain yield in sorghum (Sorghum bicolor (L.)) and other cereal crops. Previously, we reported that mutations in multi-seeded 1 (MSD1) and MSD2 genes result in a two-fold increase in grain number per panicle due to the restoration of the fertility of the pedicellate spikelets, which invariably abort in natural sorghum accessions. Here, we report the identification of another gene, MSD3, which is also involved in the regulation of grain numbers in sorghum. Four bulked F2 populations from crosses between BTx623 and each of the independent msd mutants p6, p14, p21, and p24 were sequenced to 20× coverage of the whole genome on a HiSeq 2000 system. Bioinformatic analyses of the sequence data showed that one gene, Sorbi_3001G407600, harbored homozygous mutations in all four populations. This gene encodes a plastidial ω-3 fatty acid desaturase that catalyzes the conversion of linoleic acid (18:2) to linolenic acid (18:3), a substrate for jasmonic acid (JA) biosynthesis. The msd3 mutants had reduced levels of linolenic acid in both leaves and developing panicles that in turn decreased the levels of JA. Furthermore, the msd3 panicle phenotype was reversed by treatment with methyl-JA (MeJA). Our characterization of MSD1, MSD2, and now MSD3 demonstrates that JA-regulated processes are critical to the msd phenotype. The identification of the MSD3 gene reveals a new target that could be manipulated to increase grain number per panicle in sorghum, and potentially other cereal crops, through the genomic editing of MSD3 functional orthologs.

Genetic and molecular basis of grain size and grain number and its relevance to grain productivity in higher plants

Genome ◽  
2006 ◽  
Vol 49 (6) ◽  
pp. 565-571 ◽  
Author(s):  
Pushpendra K Gupta ◽  
Sachin Rustgi ◽  
Neeraj Kumar
Keyword(s):  
Grain Size ◽  
Molecular Basis ◽  
Higher Plants ◽  
Consumer Preference ◽  
Crop Plants ◽  
Grain Number ◽  
Domestication Syndrome ◽  
Grain Productivity ◽  
Flour Yield ◽  
End Use

Grain size and grain number constitute 2 important components of grain yield. In particular, the grain size also influences the end-use quality (e.g., flour yield and protein content) and attracts consumer preference. These 2 traits are also the components of the domestication syndrome of crop plants. A number of important studies have recently been conducted to understand the genetic and molecular basis of these 2 important yield-contributing traits. Information generated from these studies was collected and synthesized for the benefit of plant biologists, particularly plant breeders. In the present article, this information is briefly reviewed and the prospects of using this information for improvement of grain productivity in crop plants are discussed.Key words: grain size, grain number, grain productivity, genetics, domestication.

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