Photosynthetic pigments in relation to wheat productivity
1992
Khalil, I.A. (NWFP Agricultural Univ., Peshawar (Pakistan). Dept. of Agriculture Chemistry) | Manan, F. (NWFP Agricultural Univ., Peshawar (Pakistan). Dept. of Human Nutrition)
The growth and productivity parameters of wheat cultivars grown in Pakistan were studied and compared with an European wheat cultivar, Aquila. The major photosynthetic pigments chlorophylls a,b and carotenoid content per shoot of all the cultivars were also determined and their inter-relationships among themselves and with various productivity parameters were established. It was found that the European cultivar, Aquila, yielded more grain and straw/plant as compared to Pakistani wheat cultivars. Among the latter Shandal and C-36 (79-89) grains were heavier than other local cultivars. Hence their grain yield/plant was also better than the other cultivars grown in Pakistan. The chlorophylls a,b and carotenoid contents per shoot were positively related among themselves as well as with the various productivity parameters, 1000 kernel weight, grain and straw yields/plant. It was concluded that chlorophyll a or total chlorophyll content per shoot may be used as an index of productivity for screening better germplasm at an early stage of plant growth.
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