STUDIES ON NUTRITIONAL COMPOSITION AND TRYPSIN INHIBITOR ACTIVITY IN PARENTS AND THEIR PROMISING HYBRID COMPOSITES IN CHICKPEA

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Date
2001-06-30
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Mahatma Phule Krishi Vidyapeeth, Rahuri, Dist. Ahmednagar - 413 722 Maharashtra State (India)
Abstract
The present investigation was undertaken to study the nutritionalcomposition, limiting amino acids and TI activity of the seeds of parents, their promising hybrid lines and some new hybrids of desi and kabuli chickpea The seeds of 6 parents and 42 promising hybrid lines developedform their crosses m each group were obtained from Sr. Pulse Breeder M P K V, Rahuπ and analysed for the contents of crude protein, total ash, crude fibre, methionme, tryptophan and TI activity by using standard analytical procedures Another set of 12 promising hybrids under Phule Gram (PG) seπes, 7 Desi and 5 Kabuli types were also analysed for these characters to evaluate their nutritional quality. Among the six parents used for hybridization in differentcombinations, the cv Vishal was found to have highest crude protein 28.2%) followed by cv. Vijay (24 6%) while the other parents contained only 20 to 23per cent protein A ignificant genetic variation was observed for the protein content among the hybrid groups The hybrids ICC V-10 x Vishal, PG-91028 xVishal, Vijay x Vishal were found to be promising for protein content (26 to 28%) The significantly higher protein content was observed in only those hybrids where either Vishal or Vijay were used as male parent. These results indicated that the protein content in hybrids is ontributed as domment xm Abstract contd. .. S.R. Chaudhaπ character by the male parent m chickpea The ash content was found to range from 2.1 to 3.0 per cent while that of crude fibre from 7.2 to 8.8 among different parents and their hybπds The value on ash and crude fibre content of parents and their hybrids indicated that these characters seem to be contributed by female parent. Methionine and tryptophan content of chickpea cultivars ranged from 0.67 to 1.21 g/16gN and 0.43 to 0.76 g/16gNs respectively. The cv. Vishal and those hybrids produced by using Vishal as male parent were found to contain higher level of these amino acids. The TI activity was found to range from 18 7 to 27.8 units/g of meal among the different cultivars. The cv PG-12 exhibited higher Tl activity among the cultivars studied. In general, desi type of chickpea cultivars were found superior tothe kabuli types on the basis of their grain yield and crude protein content However all were found to be deficient in limiting amino acids, methionine and tryptophan. Among the cultivars studied PG-96108, PG-95104, PG-93118 and PG-96005 in desi and PG-95311 in kabuli types were found to bepromising for grain yield and protein yield while the PG- 5421, PG-95104 & PG-93107 were found to contain higher TI activity (25 to 26 units/g) in theirseeds. The results indicated that these cultivars may show some level ofresistance against pod borer infestation. These cultivars may alo serve as a good genetic material for further improvement of chickpea in this respect.
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sowing, intercropping, wheats, tillage equipment, seed drilling, crops, mustard, fertilizers, land resources, chickpeas
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