scholarly journals Artificial selection of biotypes of green rice leafhopper, Nephotettix cincticeps Uhler (Homoptera: Cidadellidae), and virulence to resistant rice varieties

2007 ◽  
Vol 42 (1) ◽  
pp. 97-107 ◽  
Author(s):  
Masahiro Hirae ◽  
Yoshimichi Fukuta ◽  
Katsunori Tamura ◽  
Shingo Oya
Keyword(s):  
Artificial Selection ◽  
Rice Varieties ◽  
Green Rice Leafhopper ◽  
Selection Of

scholarly journals Breeding for chemical camouflage the case of salmon kairomones and resistance to salmon lice infectivity

2021 ◽  
Author(s):  
Gareth Difford ◽  
John-Erik Haugen ◽  
Muhammad Luqman Aslam ◽  
Lill-Heidi Johansen ◽  
Mette Breiland ◽  
...  
Keyword(s):  
Artificial Selection ◽  
Farmed Salmon ◽  
Chemical Camouflage ◽  
Salmon Lice ◽  
Selection Of

Abstract Salmon lice are ectoparasites that threaten wild and farmed salmonids. Artificial selection of salmon for resistance to the infectious copepodid lice stage currently relies on in vivo challenge trials on thousands of salmon a year. We found that salmon emit a bouquet of kairomones which the lice use to find and infect the salmon. Some of these compounds vary between families and could be used as a more direct and ethical measurements of lice resistance for breeding farmed salmon.

scholarly journals Artificial selection of reaction norms of wing pattern elements in Bicyclus anynana

Heredity ◽  
1995 ◽  
Vol 74 (1) ◽  
pp. 91-99 ◽  
Author(s):  
Graham J Holloway ◽  
Paul M Brakefield
Keyword(s):  
Artificial Selection ◽  
Reaction Norms ◽  
Wing Pattern ◽  
Bicyclus Anynana ◽  
Selection Of

Ciri Morfologi, Fisiko-Kimia dan Kerintangan Dua Titisan Padi Kemandulan Jantan Sitoplasma (CMS) Baru

2014 ◽  
Vol 70 (6) ◽  
Author(s):  
Elixon Sunian ◽  
Mohd. Solihen Jamal ◽  
Asfaliza Ramli ◽  
Othman Omar ◽  
Habibbudin Hashim ◽  
...  
Keyword(s):  
Amylose Content ◽  
Brown Planthopper ◽  
Blast Disease ◽  
Male Sterile ◽  
Rice Varieties ◽  
Gel Consistency ◽  
Moderately Resistant ◽  
Maturation Age ◽  
B Lines ◽  
Selection Of

CMS (cytoplasmic male sterile) line is one of the most important hybrid parents in hybrid rice production technology using Three-Line systems. Test-crosses for selection of candidate local maintainer lines were conducted using 24 rice varieties and two CMS-WA (wild abortive) lines IR78374A/B and 1A/B. The F1 of the two combinations, namely IR78374A/P519 and 1A/MR243 had less than 10% spikelet fertility (6.4 and 7.2%, respectively), indicated that P519 and MR243 are partially maintainers and could be used for the development of new locally adapted CMS lines. As a results, two CMS lines, namely 0025A/B and 0047A/B were generated after 5 to 6 successive backcrossing of IR78374A with P519 and 1A with MR243. The CMS 0025A/B and 0047A/B lines had maturation age which is comparable to other commonly grown inbred varieties. The percentage of stigma exertion rate for CMS 0025A/B and 0047A/B were 17.9 and 21.3%, respectively, lower than that of IR78374A/B (43.2%). Both showed poor out-crossing rate. CMS 0025A/B and 0047A/B are classified as long and slender grain. They had intermediate amylose content. Their gel consistency was hard, comparable to that of MR263 (medium).  CMS 0025A/B and 0047A/B lines were also moderately resistant to foliar blast disease and brown planthopper infestation.

Selection of The Proper Rice Varieties to Early Transplanting Cultivation in Southern Plain of Korea

2014 ◽  
Vol 48 (6) ◽  
pp. 1-9 ◽  
Author(s):  
Deok-Gyeong Seong ◽  
◽  
Young-Gwang Kim ◽  
Yong-Cho Cho ◽  
Hyun-Yul Shin ◽  
...  
Keyword(s):  
Rice Varieties ◽  
Southern Plain ◽  
Selection Of

Reliance Upon a Toxic Staple Crop

2017 ◽  
Author(s):  
Warren Wilson ◽  
Darna L. Dufour
Keyword(s):  
Artificial Selection ◽  
Agricultural Practices ◽  
North West ◽  
The North ◽  
Variety Selection ◽  
Salient Factor ◽  
Staple Crop ◽  
Selection Of

In Amazonia most indigenous horticulturists prefer to cultivate the more toxic forms of manioc as a staple crop, despite the increased processing required to render them safe for consumption. This phenomenon has long intrigued anthropologists. In this chapter we describe the agricultural practices of the Tukanoan Indians in the North-west Amazon and explore their reliance on toxic varieties of manioc from agronomic, ecological, organoleptic, and ethnographic perspectives. Our findings indicate that the puzzling preference for a toxic staple crop may be explained by the higher yields produced by the more toxic forms, and also that the most salient factor in variety selection by Tukanoan women is the food into which the roots will be made. This suggests a multifaceted explanation. Moreover, we propose that present-day lack of concern about yield is a recent luxury due to artificial selection of sufficiently high-yielding manioc varieties during the development of this crop.

Artificial Selection of Adult Screw-Worms for Extended Survival without Food and Water

1965 ◽  
Vol 58 (4) ◽  
pp. 645-649 ◽  
Author(s):  
A. H. Baumhover ◽  
G. E. Spates
Keyword(s):  
Artificial Selection ◽  
Extended Survival ◽  
Selection Of

scholarly journals Soybean Cyst Nematode Resistance Emerged via Artificial Selection of Duplicated Serine Hydroxymethyltransferase Genes

2016 ◽  
Vol 7 ◽  
Author(s):  
Xiao-Yi Wu ◽  
Guang-Can Zhou ◽  
Yun-Xia Chen ◽  
Ping Wu ◽  
Li-Wei Liu ◽  
...  
Keyword(s):  
Artificial Selection ◽  
Soybean Cyst Nematode ◽  
Nematode Resistance ◽  
Cyst Nematode ◽  
Serine Hydroxymethyltransferase ◽  
Soybean Cyst Nematode Resistance ◽  
Selection Of

scholarly journals Artificial Selection of Gn1a Plays an Important role in Improving Rice Yields Across Different Ecological Regions

Rice ◽  
2015 ◽  
Vol 8 (1) ◽  
Author(s):  
Jie Wang ◽  
Huaxue Xu ◽  
Nengwu Li ◽  
Fengfeng Fan ◽  
Liuting Wang ◽  
...  
Keyword(s):  
Artificial Selection ◽  
Ecological Regions ◽  
Rice Yields ◽  
Selection Of
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