Evaluation of Elite Rice (Oryza sativa L.) Lines for Yield and Yield Components
Evaluation of Elite Rice (Oryza sativa L.) Lines for Yield and Yield Components
Basharat Hussain Shah*, Farrukh Siyar Hamid, Shams ul Islam, Naveed Ahmed, Fayaz Ahmad, Noorullah Khan and Qamar uz Zaman.
ABSTRACT
The present research work was aimed to explore the amount of genetic variability that may exist in the available genetic material and to study the variability of yield and yield attributes in advance rice lines. For this purpose, fourteen elite rice lines namely Line-21, Line-25, Line-28, Line-31, Line-37, Line-46, Line-48, Line-50, Line-64, Line-73, Line-80, Line-128, Line-130 and Line-140 developed in the background of Basmati-385 by Department of Genetics, Hazara University Mansehra Pakistan were evaluated along with check variety Swat-1 for yield and yield components. Experiment was conducted at National Tea and High Value Crops Research Institute (NTHRI), Shinkiari Mansehra during the rice growing season of 2017. Data were recorded on various growth parameters like plant height, tillers per plant, stem diameter, flag leaf length, 1000-grain weight and yield per hectare. Except for stem borer attack no prominent disease attack was observed in the experiment during the growth period. Significant differences were observed in the genetic material for all the parameters studied. Maximum plant height of 165.8 cm was recorded for Line-31. Maximum number of tillers per plant 23.9 was recorded for Line-80. Maximum stem diameter of 7.20 mm was recorded for Line-140. The highest flag leaf length of 47.9 cm was recorded for Line-28. The 1000 grain weight of 39.0 g was equally recorded for Line-46 and Line-73. Yield data reveal that maximum yield of 4.92 t/ha was recorded for Line-37 followed by Line-28 and Line-25 having 4.52 and 4.44 tons yield per hectare respectively. Lowest yield of 2.80 t/ha was recorded for Line-31. Lines performed well in the experiment, will be promoted to next year trial for further investigation.
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