Search Result of "G. R. Tahir"

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ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Genetic Basis of Synchrony in Pod Maturity in Mungbean (Vigna radiata (L.) Wilczek))

ผู้เขียน:ImgG. S. S. Khattak, ImgM. A. Haq, ImgM. Ashraf, ImgG. R. Tahir

สื่อสิ่งพิมพ์:pdf

Abstract

The inheritance of early flowering, early pod maturity and synchrony in pod maturity was studied in six diverse mungbean genotypes through the diallel crossing design. The genotype NM 92 was the best general combiner for early flowering and early pod maturity, whereas accession ML-5 was the best general combiner for more synchrony in pod maturity. The best specific combination for early flowering and early pod maturity was NM 92 x NM 89 and for highest synchrony in pod maturity was NM 92 x ML-5. The days to first pod and 90% pod maturity, and degree of indetermination from first flower to 90% pod maturity (DDd1) were controlled by both additive and dominance gene effects with predominant effect of additive component. Only additive and dominance gene effects controlled the days to first flower and degree of indetermination from first pod maturity to 90% pod maturity (DDd2), respectively. The high narrow and broad sense heritability for days to first flower, days to first pod maturity and 90% pod maturity revealed more proportion of their genetic variation due to additive gene effects. The selection for synchrony in pod maturity is suggested to be made in advanced generation due to the low narrow sense heritability for degree of indetermination from first flower to 90% pod maturity.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 035, Issue 1, Jan 01 - Mar 01, Page 1 - 7 |  PDF |  Page 

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ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Heterosis for Some Morphological Traits in Mungbean (Vigna radiata (L.) Wilczek))

ผู้เขียน:ImgG. S, S. Khattak, ImgM. A. Haq, ImgM. Ashraf, ImgG. R. Tahir

สื่อสิ่งพิมพ์:pdf

Abstract

Heterosis over mid, better and top parent values for some important morphological traits (node of the first pod peduncle, nodes on the main stem, no. of pod clusters on the main stem, average internodal length) were estimated in 15 cross combinations derived from a half diallel involving 6 diverse mungbean genotypes. The low extents of heterosis effects were observed for node of the first pod peduncle and average internodal length in the existing mungbean germplasm. The cross combinations having ML-5 as one of the parent may produce segregates with yield potential through more number of pod clusters on main stem. The hybrid VC 3902A x ML-5, which produced high heterotic effects for nodes on main stem and pod clusters on main stem is suggested for exploitation for developing high yielding mungbean varieties.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 034, Issue 4, Oct 00 - Dec 00, Page 439 - 442 |  PDF |  Page