Association study of yield and its component traits in sugarcane seedlings

Q4 Agricultural and Biological Sciences

ELECTRONIC JOURNAL OF PLANT BREEDING Pub Date : 2024-07-09 DOI:10.37992/2024.1502.061

Vennela M., Balwant Kumar, Dinesh Varma D.

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引用次数: 0

Abstract

An experiment was carried out to investigate the relationship between specific quantitative characters and sugarcane yield at the Sugarcane Research Institute, Pusa, Bihar, in February 2022. Thirty sugarcane seedlings obtained from three different crosses along with check were subjected to estimation trait association by correlation and path analyses. Cane yield showed strong positive and highly significant correlation with single cane weight, number of millable canes per clump and brix percent at 12th month. There was also positive significant correlation of number of shoots per clump with cane yield. Path analysis revealed the highest positive direct effect of brix percent at 12th month on cane yield followed by brix percent at 10th month and cane diameter. However, number of shoots per clump had considerable negative direct effects and indirect positive effects through single cane weight and number of millable canes per clump on cane yield. The traits that provide considerable positive correlation and positive direct effects to cane yield could be used as selection indices for yield improvement in for further clonal generations.

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甘蔗幼苗产量及其组成性状的关联研究

2022 年 2 月，比哈尔邦普萨甘蔗研究所进行了一项实验，研究特定数量性状与甘蔗产量之间的关系。通过相关分析和路径分析，对从三个不同杂交品种中获得的 30 株甘蔗幼苗和对照进行了性状关联评估。甘蔗产量与单根甘蔗重量、每丛可碾甘蔗数和第 12 个月的糖度（brix）百分比呈高度显著的正相关。此外，每丛蔗芽数与甘蔗产量也呈正相关。路径分析显示，第 12 个月的糖度对甘蔗产量的直接正效应最大，其次是第 10 个月的糖度和甘蔗直径。然而，每丛嫩枝数对甘蔗产量有相当大的直接负效应，而通过单根甘蔗重量和每丛可碾甘蔗数对甘蔗产量有间接正效应。对甘蔗产量有相当大的正相关性和直接正效应的性状可用作进一步克隆世代中提高产量的选择指标。

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来源期刊

ELECTRONIC JOURNAL OF PLANT BREEDING Agricultural and Biological Sciences-Soil Science

CiteScore

1.10

自引率

0.00%

发文量

153

审稿时长

25 weeks

期刊介绍： Electronic Journal of Plant Breeding (EJPB) is an official publication of Indian Socciety of Plant Breeders (ISPB). The main aim of this journal is to promote the general advancement of plant breeding and to create a forum to bring together and facilitate the exchange of information amongst plant breeders. It is published quarterly as ONLINE as OPEN ACCESS journal in the official web page www.ejplantbreeding.org. The publications are subjected into DOUBLE BLIND PEER REVIEWES. Original research articles and research communications on all areas of Plant Breeding viz., genetics, breeding, cytology, germplasm evaluation, marker assisted breeding, etc are accepted. At present Review articles are not accepted for publication.