Arid
SEED AND OIL DISTRIBUTION IN DIFFERENT CIRCLES OF MATURE SUNFLOWER HEAD
Kaleem, Shuaib; Fayyaz-ul-Hassan
通讯作者Fayyaz-ul-Hassan
来源期刊PAKISTAN JOURNAL OF BOTANY
ISSN0556-3321
EISSN2070-3368
出版年2010
卷号42期号:5页码:3005-3014
英文摘要

High degree of adaptability, wide range of climatic conditions, high photosynthetic capacity and harvest index allow sunflower crop to be productive in broad range of environments. Prevailing temperature at pollination and after anthesis affects pollen health, fertilization process and ultimately the seed filling and assimilate partitioning that varies in different circles/whorls of sunflower heads. Field experiments one each in spring and autumn were conducted at Pir Mehr Ali Shah, Arid Agriculture University Rawalpindi, Pakistan to document the assimilate partitioning (as achene) and oil accumulation in different circles/whorls of sunflower heads as influenced by varying environments. Four sunflower hybrids were planted in randomized complete block design with two factors factorial (hybrids & circles) experiment with four replications. Each head was divided into three equal circles (outer, middle & central). Achene and oil distribution was separately recorded in each circle. All four hybrids produced heads of larger diameter in spring crop than those produced by autumn season crop. Outer circle produced higher number of achenes, those were heavier in weight and accumulated higher oil content in all four hybrids as compared to middle and central circle in spring crop, while oil content showed minor increase from outer to central circle in autumn crop, which showed the least number of rows and hull kernel ratio. Hull kernel ratio showed contrasting results as compared to other traits which progressively increased from outer to central circle in spring crop while consistently decreased in autumn crop in all the four hybrids. Number of achene, achene weight, hull kernel ratio and oil content in all three regions (outer, middle and central) of spring sown sunflower heads were more than those of autumn crop heads. Opposite relationship between head circles, hull kernel ratio and oil content was observed for both the seasons.


类型Article
语种英语
国家Pakistan
收录类别SCI-E
WOS记录号WOS:000285724100007
WOS关键词HELIANTHUS-ANNUUS ; CAPITULUM ; TEMPERATURE ; GROWTH
WOS类目Plant Sciences
WOS研究方向Plant Sciences
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/165863
作者单位Arid Agr Univ Rawalpindi, Rawalpindi, Pakistan
推荐引用方式
GB/T 7714
Kaleem, Shuaib,Fayyaz-ul-Hassan. SEED AND OIL DISTRIBUTION IN DIFFERENT CIRCLES OF MATURE SUNFLOWER HEAD[J],2010,42(5):3005-3014.
APA Kaleem, Shuaib,&Fayyaz-ul-Hassan.(2010).SEED AND OIL DISTRIBUTION IN DIFFERENT CIRCLES OF MATURE SUNFLOWER HEAD.PAKISTAN JOURNAL OF BOTANY,42(5),3005-3014.
MLA Kaleem, Shuaib,et al."SEED AND OIL DISTRIBUTION IN DIFFERENT CIRCLES OF MATURE SUNFLOWER HEAD".PAKISTAN JOURNAL OF BOTANY 42.5(2010):3005-3014.
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