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Effect of dates of planting, plant geometry and number of seedlings on growth and yield of hybrid rice (Oryza sativa L.)
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Research paper 1.pdf23.19 KB
First Author
First Name: 
V.K.
Last Name: 
Yadav
Co-Authors: 
H.N.Tripathi
Journal Title: 
Crop Research
Journal Year: 
2008
Journal Issue: 
36
Journal Pagination: 
1-3
Agro Tags: 
Hybrids | Grain | Heterosis | Planting date | Dry matter | spacing | Yields | Field experimentation | plant population | Leaf area index

A field experiment was conducted at Kanpur during Kharif seasons of 2005 and 2006, to find out the effect of hybrid rice 'PHB 71' to 3 dates of planting (15 July, 30 July and 14 August), 4 plant geometry (15 × 15cm, 20 × 15cm, 25 × 15cm and 30 × 15 cm) and 2 seedling rates (1  and 2 seedlings hill-1). Hybrid rice planted on 15 July recorded significantly more grain yield (62.82 q ha-1), which declined by 7.6 and 20.6% due to 15 and 30 days delay in planting, respectively. Planting the crop with a closer plant geometry of 15 × 15 cm produced significantly highest grain yield (59.18 q ha-1) than wider plant geometry of 20 × 15 cm, 25 × 15 cm and 30 × 15 cm. Planting of 2 seedlings hill-1 was beneficial with yield advantage of 8.2% over 1 seedling hill-1.

 

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