Flowering, reproductive behaviors and their effects on grain yields of newly bred single cross hybrids of yellow maize ( <i>Zea mays</i> L.) in winter in subtropical Nepalese Himalayan foot plain

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Introduction : All the plants of a maize population or hybrid PP (plant population) do not dehisce anthers and do not emerge silk simultaneously. Generally, male flowering or anther dehiscence (anthesis) is leading and female flowering (silk emergence or silking) is lagging under both optimum and stressful environment. Enough and timely pollen availability is indispensable when silks come out of maize ears for largest number of kernel set. So; study of flowering and reproductive behavior of newly bred maize hybrids are indispensable to confirm high grain yielding hybrid with traits of synchrony in anthesis and silking, coming out of all silks and enough pollen availability in short duration. Materials and methods : Flowering and reproductive behaviors of fifteen newly bred single cross hybrids of yellow maize have been examined growing them in an RCBD trial planting their seeds on October 3, 2012 to expose flowering to the natural winter in subtropical foot plain of Himalaya. For flowe

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