Photosynthetic traits of upper three leaves in the vietnamese F 1 hybrid rice vietlai 45 and its parents during the ripening period

Norimitsu Hamaoka, Takuya Araki, Etsushi Kumagai, Tang Thi Hanh, Pham Van Cuong, Osamu Ueno

Research output: Contribution to journalArticle

Abstract

Vietlai 45 (VL45) is F 1 hybrid rice that has been recently introduced in Vietnam. Despite its high yield potential, the grown period is about two weeks shorter than the parents. To elucidate the factor resulting in this superior trait, we investigated photosynthetic traits in upper three leaves including the flag leaf (FL) during the ripening period in VL45 in comparison with its female and male parents, 103S and R45. At 3 days after heading (DAH), shoot dry weight was higher in VL45 than in the parent cultivare, whereas the leaf morphological traits of VL45 were similar to those of R45. The nitrogen content in leaves tended to be higher in VL45 than in R45 at 14 DAH. At 24 DAH, the FL of VL45 showed higher net photosynthetic rate (PJ and stomatal conductance (GJ than those of the parents, with a symptom of senescence in other leaves. Values of chlorophyll fluorescence parameters did not greatly differ among the three cultivare. P n, per unit soluble protein content (P n/SP) in the FL was much higher in VL45 than in the parents at 24 DAH. Thus, it seems that higher Pn in the FL of VL45 is because of high G a, and P n/SP. These data demonstrate that VL45 shows the heterosis effect on the dry matter production until heading and the maintenance of high P n in the FL at late ripening stage, which would contribute to the superior agronomic trait of VL45.

Original languageEnglish
Pages (from-to)27-33
Number of pages7
JournalJournal of the Faculty of Agriculture, Kyushu University
Volume57
Issue number1
Publication statusPublished - Feb 1 2012

Fingerprint

Hybrid Vigor
Vietnam
Chlorophyll
ripening
Nitrogen
Fluorescence
Weights and Measures
rice
heading
leaves
Proteins
Oryza
heterosis
agronomic traits
dry matter accumulation
signs and symptoms (plants)
nitrogen content
stomatal conductance
protein content
fluorescence

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Agronomy and Crop Science

Cite this

Photosynthetic traits of upper three leaves in the vietnamese F 1 hybrid rice vietlai 45 and its parents during the ripening period. / Hamaoka, Norimitsu; Araki, Takuya; Kumagai, Etsushi; Hanh, Tang Thi; Van Cuong, Pham; Ueno, Osamu.

In: Journal of the Faculty of Agriculture, Kyushu University, Vol. 57, No. 1, 01.02.2012, p. 27-33.

Research output: Contribution to journalArticle

@article{e7a6d919639e43fc8f8ba2483115f2aa,
title = "Photosynthetic traits of upper three leaves in the vietnamese F 1 hybrid rice vietlai 45 and its parents during the ripening period",
abstract = "Vietlai 45 (VL45) is F 1 hybrid rice that has been recently introduced in Vietnam. Despite its high yield potential, the grown period is about two weeks shorter than the parents. To elucidate the factor resulting in this superior trait, we investigated photosynthetic traits in upper three leaves including the flag leaf (FL) during the ripening period in VL45 in comparison with its female and male parents, 103S and R45. At 3 days after heading (DAH), shoot dry weight was higher in VL45 than in the parent cultivare, whereas the leaf morphological traits of VL45 were similar to those of R45. The nitrogen content in leaves tended to be higher in VL45 than in R45 at 14 DAH. At 24 DAH, the FL of VL45 showed higher net photosynthetic rate (PJ and stomatal conductance (GJ than those of the parents, with a symptom of senescence in other leaves. Values of chlorophyll fluorescence parameters did not greatly differ among the three cultivare. P n, per unit soluble protein content (P n/SP) in the FL was much higher in VL45 than in the parents at 24 DAH. Thus, it seems that higher Pn in the FL of VL45 is because of high G a, and P n/SP. These data demonstrate that VL45 shows the heterosis effect on the dry matter production until heading and the maintenance of high P n in the FL at late ripening stage, which would contribute to the superior agronomic trait of VL45.",
author = "Norimitsu Hamaoka and Takuya Araki and Etsushi Kumagai and Hanh, {Tang Thi} and {Van Cuong}, Pham and Osamu Ueno",
year = "2012",
month = "2",
day = "1",
language = "English",
volume = "57",
pages = "27--33",
journal = "Journal of the Faculty of Agriculture, Kyushu University",
issn = "0023-6152",
publisher = "Faculty of Agriculture, Kyushu University",
number = "1",

}

TY - JOUR

T1 - Photosynthetic traits of upper three leaves in the vietnamese F 1 hybrid rice vietlai 45 and its parents during the ripening period

AU - Hamaoka, Norimitsu

AU - Araki, Takuya

AU - Kumagai, Etsushi

AU - Hanh, Tang Thi

AU - Van Cuong, Pham

AU - Ueno, Osamu

PY - 2012/2/1

Y1 - 2012/2/1

N2 - Vietlai 45 (VL45) is F 1 hybrid rice that has been recently introduced in Vietnam. Despite its high yield potential, the grown period is about two weeks shorter than the parents. To elucidate the factor resulting in this superior trait, we investigated photosynthetic traits in upper three leaves including the flag leaf (FL) during the ripening period in VL45 in comparison with its female and male parents, 103S and R45. At 3 days after heading (DAH), shoot dry weight was higher in VL45 than in the parent cultivare, whereas the leaf morphological traits of VL45 were similar to those of R45. The nitrogen content in leaves tended to be higher in VL45 than in R45 at 14 DAH. At 24 DAH, the FL of VL45 showed higher net photosynthetic rate (PJ and stomatal conductance (GJ than those of the parents, with a symptom of senescence in other leaves. Values of chlorophyll fluorescence parameters did not greatly differ among the three cultivare. P n, per unit soluble protein content (P n/SP) in the FL was much higher in VL45 than in the parents at 24 DAH. Thus, it seems that higher Pn in the FL of VL45 is because of high G a, and P n/SP. These data demonstrate that VL45 shows the heterosis effect on the dry matter production until heading and the maintenance of high P n in the FL at late ripening stage, which would contribute to the superior agronomic trait of VL45.

AB - Vietlai 45 (VL45) is F 1 hybrid rice that has been recently introduced in Vietnam. Despite its high yield potential, the grown period is about two weeks shorter than the parents. To elucidate the factor resulting in this superior trait, we investigated photosynthetic traits in upper three leaves including the flag leaf (FL) during the ripening period in VL45 in comparison with its female and male parents, 103S and R45. At 3 days after heading (DAH), shoot dry weight was higher in VL45 than in the parent cultivare, whereas the leaf morphological traits of VL45 were similar to those of R45. The nitrogen content in leaves tended to be higher in VL45 than in R45 at 14 DAH. At 24 DAH, the FL of VL45 showed higher net photosynthetic rate (PJ and stomatal conductance (GJ than those of the parents, with a symptom of senescence in other leaves. Values of chlorophyll fluorescence parameters did not greatly differ among the three cultivare. P n, per unit soluble protein content (P n/SP) in the FL was much higher in VL45 than in the parents at 24 DAH. Thus, it seems that higher Pn in the FL of VL45 is because of high G a, and P n/SP. These data demonstrate that VL45 shows the heterosis effect on the dry matter production until heading and the maintenance of high P n in the FL at late ripening stage, which would contribute to the superior agronomic trait of VL45.

UR - http://www.scopus.com/inward/record.url?scp=84858436632&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84858436632&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:84858436632

VL - 57

SP - 27

EP - 33

JO - Journal of the Faculty of Agriculture, Kyushu University

JF - Journal of the Faculty of Agriculture, Kyushu University

SN - 0023-6152

IS - 1

ER -