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Birsa Agricultural University, Ranchi

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End date: 1997 × Start date: 1993 × Type: Thesis × Thesis Type: M.B.A. ×
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    ThesisItemOpen Access
    Studies on Physiological Basis of Higher Productivity of Upland Rice
    (Birsa Agricultural University, Ranchi, 1997) Manoj Kumar Singh; A.K.Verma
    In order to study the physiological basis of higher productivity of upland rice, twelve rice varieties were tested under upland conditions during Rainy season of 1994 in a randomized Block design with three replication. The experiment was conducted at Birsa Agricultura l university farm,Kanke ,Ranchi. The finding of experiment were summarized below. 1. The variety Birsa Gora 102 attained maximum height at all the growth stages as compared to other rice varieties. 2 .Maximum number of effective tillers per plant were produced by the rice variety BD 101 followed by Birsa Gora 102. 3.BD 101 and Birsa Gora were found to be on a par in producing longer panicles. 4. The rice variety BD 101 recorded highest panicle weight (3.32g) followed by Birsa Gora 102 (2.83g) and both are found to be significantly superior then rest of rice varieties teste 5. Maximum number of filled grains (93) was recorded by the variety BD 101 which was followed by the variety Birsa Gora (84). 6.The rice variety BD recorded highest grain weight (1.63g) followed by the variety Birsa Gora 102(53g). 7.Maximum test weight was recorded by the variety BD 101 which was significantly superior than the rest of the varieties. 8. Maximum grain yield was recorded by the variety BD 101(15.9q/ha )and found to be significantly superior than the rest o varieties tested. 9.BD 101 produced maximum straw yield followed by Birsa gora 102 and was significantly superior than the rest of the rice varieties. 10.The harvest index was maximum in rice variety BD 101 (36.87%) and found to be significantly superior to rest of the varieties tested.This was followed by the variety Birsa Gora 102(36.08%). 11The variety BD 101 attained maximum leaf area at all the growth stages as compared to other varieties tested. 12.The maximum dry matter accumulation was recorded by the variety BD 101 at both the stages and found to be significantly superior to rest of the verities tested. 13.Net assimilation rate was maximum inBirsa Gora 102 and found to be significantly superior to rest of the rice varieties tested. 14. The rice variety BD 103 attained higher leaf ratio at both the stages of growth. 15. Maximum relative growth rate was recorded by the rice variety BAU 146-16-3 followed by BAU 125-4-1. 16.The highest percentage of good quality seed was recorded by variety BD followed by Birsa Gora 102.The maximum percentage of chaff was obtained by variety BD 202.