دورية أكاديمية

Genetic variability and association studies for yield and floral traits in Temperature Sensitive Male Sterile lines (TGMS) of rice (Oryza sativa L)

التفاصيل البيبلوغرافية
العنوان: Genetic variability and association studies for yield and floral traits in Temperature Sensitive Male Sterile lines (TGMS) of rice (Oryza sativa L)
المؤلفون: R. Rahul Roy, D. Kumaresan
المصدر: Electronic Journal of Plant Breeding, Vol 10, Iss 3, Pp 1200-1209 (2019)
بيانات النشر: Indian Society of Plant Breeders, 2019.
سنة النشر: 2019
المجموعة: LCC:Plant culture
مصطلحات موضوعية: TGMS, variability, correlation, path, floral traits, morphological traits, Plant culture, SB1-1110
الوصف: One hundred and nineteen rice TGMS lines were evaluated for ten morphological traits in fertility favouring environment and eight floral traits in sterility favouring environment respectively. The analysis of variance exhibited significant difference among the TGMS lines for all the traits studied except sterile lemma length indicates large amount of genetic variability was present in the experimental material. The morphological traits viz., pollen fertility, number of grains per panicle, single plant yield and floral traits namely anther length, anther breadth, stigma length, stigma breadth, glume opening angle, stigma exertion and pollen sterility were recorded high phenotypic and genotypic coefficient of variation. High heritability with high genetic advance as per cent of mean was observed in morphological traits namely, days to 50 per cent flowering, pollen fertility, spikelet fertility, number of grains per panicle, single plant yield and in floral traits viz., anther length, anther breadth, stigma length, stigma breadth, stigma exertion, glume opening angle and pollen sterility reveals presence of additive gene action and further genetic improvement through direct selection would be effective for these traits. The single plant yield observed significant and positive correlation with plant height, number of productive tillers per plant and spikelet fertility shows importance of these characters for yield improvement. In floral traits, stigma breadth and glume opening angle had non significant and positive correlation with pollen sterility. Path analysis showed that plant height and number of productive tillers had positive direct effect on single plant yield. In floral traits, stigma breadth and glume opening angle had small positive effects on pollen sterility.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 0975-928X
Relation: http://ejplantbreeding.org/index.php/EJPB/article/view/3272; https://doaj.org/toc/0975-928X
DOI: 10.5958/0975-928X.2019.00152.2
URL الوصول: https://doaj.org/article/9f320ec5fb9946388093c8823a500a42
رقم الأكسشن: edsdoj.9f320ec5fb9946388093c8823a500a42
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:0975928X
DOI:10.5958/0975-928X.2019.00152.2