Impact of Earliness, Flowering Time and Plant Design on Late Sown Cotton Production

Author:

Khan Muhammad Rizwan Jamil1,Ullah Kalim2,Khan Muhammad Mohibullah3,Khan Rashid4

Affiliation:

1. University of Central Punjab, Okara

2. Pakistan Central Cotton Committee, Cotton Research Station, D.I.Khan

3. Gomal University D.I.Khan

4. Agricultural Research Institute, Rata Kulachi, D.I.Khan

Abstract

Abstract Extremely diversified cropping environments prevails in most of the cotton growing areas of the country due to the prevailing rainfed conditions and thus cotton is cultivated over a prolonged period. This study examined the production and growth pattern of 8 cotton genotypes to find out the most effective strategies that could be transformed into breeding traits. Four experiments were conducted in 2018 and 2019 at two locations in Dera Ismail Khan to associate the 8 genotypes at 3 planting densities and two sowing dates. Various attributes like days to 1st flower opening, affective time of flowering, monopodial branches per plant, height of plant at the time of harvesting, ratio of height to node length of fruiting branch and average number of bolls retained at the 1st site of fruiting branch were investigated. Results revealed two ideotypes which performed better than the others. Genotype CIM-632 yielded better in late sowing-high plant density and regarded as by less growth of vegetative branches and early start of flowering, short flowering duration and less bolls retained at the 1st position of sympodia. Genotype CIM-663 and CIM-343 performed outstandingly in early sowing-low plant density and regarded by more growth of vegetative branches, delayed flowering, lengthy flowering duration and more bolls retained at 1st position. Based on these attributes, a breeding scheme for these ideotypes is proposed with high heritability for flower opening, height of plant at the time of harvesting, ratio of height to node and fruiting branch length and medium heritability for monopodial branches, effective flowering time and bolls retained at 1st position of sympodia (fruit branch).

Publisher

Research Square Platform LLC

Reference9 articles.

1. Crawley S, Coskrey A, Baugh T, Lege K (2004) Planting date effect on variety performance in the coastal plains in south Carolina. In Proceedings Cotton Beltwide Conference, Memphis, TN (USA), National Cotton Council, 2047

2. Hua B, Lancon J, Dessauw D (2001) Cotton. In: Charrier A, Michek J, Serge H, Dominique N (eds) Tropical Plant Breeding. CIRAD, Montpellier, France, pp 153–176

3. Modifications du comportement du cotonnier en fonction de l’environnement: 1. Evolution de l’architecture de 9 variet´ es sem ´ ees ´ a trois ` ecartements;Hau B;´ Coton et Fibres Tropicales,1986

4. ´ An improved methodology for integrated crop management systems;Lancon J;Agron Sustainable Dev,2007

5. Lancon J, Sekloka E, Sinha M, Djaboutou M (2000) Heritabilit ´ e de caract ´ eres d ` efinis par plant mapping. ´. Actes des Journ´ees Coton du Cirad, du 17 au 21 juillet 2000. Montpellier, France, pp 129–136

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3