Abstract
Influence of source limitation on physiological traits of wheat
Highlights
Wheat supplies the largest share to the cerealsWheat (Triticum aestivum L.) is the most market [3]
The results indicated that all source limitations significantly affected all observed parameters
Productive spikelet spike-1 Statistical analysis of the data showed that source limitation significantly affected productive spikelets spike-1 and significant variation was found in control vs rest, normal vs flag leaf removed (N vs FLR) and normal vs all leaves removed (N vs ALR) respectively, while the contrast between flag leaf removed vs all leaves removed (FLR vs ALR) was observed non-significant (Table 1)
Summary
Wheat (Triticum aestivum L.) is the most market [3]. The photosynthate distribution important cereal crop throughout the world during grain filling considerably affects the and is grown on about 200 Million ha grain yield [1]. Percent reduction data (Table 3) showed that most of the treatments considerably reduced florets spikelet-1 especially in case of ALR and FLR, (17.0 and 10.2%) respectively, except removal of 2nd+3rd, 2nd+3rd+4th and 2nd+4th+5th (6.3, 1.9 and 1.6) respectively. Mean data showed that higher awns length was observed in case of ALR followed by FLR, followed by the remaining treatments, which are statistically similar (Table 2). Awns play a dominant role as an important transpiration and photosynthetic organ in ear It possesses a large surface area, sometimes can equal that of the ground surface, and can exceed that of the flag leaf blade in wheat. The pathway for assimilation movement from awns to the kernels is minimal which makes awns an ideally place for light interception and CO2 uptake [17]
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