The results were as follows: (1) The HMW-GS types of wheat variety (lines) were abundant, but the frequency of subunits which relation to high quality (2* , 17 + 18, 14+15, 5 + 10) were low.

Crosses were made between the new insect resistant varieties(lines) and the insect resistant variety(line) and the not insect resistant variety(line),to analyze heterosis in the different types of insect resistant hybrid cotton.

Ningtian202,ND 9530, ND 9529, Tianyan305, Jitian301, Shuangfeng316,the sugar content are not stable,that 0nly adaptable to plant in the high effective for variety(V)× Local (L) cultivar 96073 can plant in the areas of low sugar content.

1. So by analyzing the equation, the influence over rapeseed yield by five factors ranks as follows: Supplement of nitrogen (x3) > sowing date (x2) > supplement of phosphorus (x4) > density (x1) > variety (x5);

The results were as follows: (1) The HMW-GS types of wheat variety (lines) were abundant, but the frequency of subunits which relation to high quality (2* , 17 + 18, 14+15, 5 + 10) were low.

The genetic dominance of local three-molting variety was studied by analyzing the expression of individual character,genetic dominance and recessiveness of their hybrid subsequent generations between local three-molting silkworm variety(202) and common four-molting silkworm varieties(781 and Feng 1).

The results of the variety regional trail showed that Mintang86-2121,Funong91-4710and Yuetang92-126were significantly high in the average cane yield and sugar yield,the average cane yield increased with26.04%,25.55%and12.99%respectively,and the average sugar yield increased with21.16%,18.26%and14.71%respectively than check variety (Xintaitang10).

Xinjiang soybean variety(early maturity groups) regional trials were conducted in 2004 to 2005,its average yield attained(3 128.55) kg/ha,which got the third in all experiment varieties yields.

Among the 39 strains of S. flexneri, 24 strains were F4c (57.1%), 8 strains were F1a (19.0%), 5 strains were F2a (11.9%) and 2 strains were Fx variety (4.7%).

The results indicated that the karyotyupe of variety(Scherz):2n=2x=30=8m+18sm+4st; the variety(Amigo):2n=2x=30=4m+20sm+6st; the variety(Valentino):2n=2x=30=8m+18sm+4st(2SAT);

The results of the analyses of karyotypes show that the karyotypie formula of father variety(No. 2), mother variety (No. 12) and hybrid(Lian he No.1) are 2n=2x=2sm+8st+2t, 2n=2x=4sm+4st+4t and 2n=2x=2sm+6st+4t respectively.

The purpose of this note is to prove, as Lusztig stated, that the Euler characteristic of the variety of Iwahori subalgebras containing a certain nil-elliptic elementnt istcl wherel is the rank of the associated finite type Lie algebra.

The rationality of the corresponding moduli variety is proved.

If the additive group of complex numbers acts algebraically on a normal affine variety, then the associated ring of invariants need not be finitely generated, but is an ideal transform of some normal affine algebra (Theorem 1).

We investigate such normal affine algebras in the case of a locally trivial action on a factorial variety.

If the variety is a complex affine space and the ring of invariants is isomorphic to a polynomial ring, then the action is conjugate to a translation (Theorem 3).

This preliminary study of the influence of spikelet pruning on the quality and yield of wheat grains was carried out at Fukien Agricultural College in October 1952 through May 1953. The results are summarized as follows: 1. The number of grains increases in each spikelet as a result of pruning. 2. Size, weight, and protein content of the grain increase both with the difference in variety and the dates of planting. 3. Treated wheat plants ripen earlier. 4. The total yield decreases slightly. This is...

This preliminary study of the influence of spikelet pruning on the quality and yield of wheat grains was carried out at Fukien Agricultural College in October 1952 through May 1953. The results are summarized as follows: 1. The number of grains increases in each spikelet as a result of pruning. 2. Size, weight, and protein content of the grain increase both with the difference in variety and the dates of planting. 3. Treated wheat plants ripen earlier. 4. The total yield decreases slightly. This is probably due to the fact that the gain in weight of grains does not overcome the loss of weight by the removal of some of the spikelets,

From the Chinese drug Lu-Pei-Mu,which is probably a variety of Szechuan Pei-Mu,a new alkaloid,fritiminine,has been isolated.It has the empirical formula C_(26)H_(39)O_3N,m.p.258-260°,[α]_D~(26) -45.75,in absolute alcohol.It forms a salt with salicylic acid,m.p.288-290°.

The headblight or scab of wheat caused by Gibberella zeae (Schw.) Petch.has in recent years become more prevalent in the rice-wheat growing area ofEastern China with two heavy epidemics in 1952 and in 1954.It was reportedfrom this area that wheat varieties showed marked differences in their susceptibilityto headblight and that native varieties in general were less susceptible than theimproved ones.It was also reported that the degree of susceptibility appeared tobe related to the stage of host development.In...

The headblight or scab of wheat caused by Gibberella zeae (Schw.) Petch.has in recent years become more prevalent in the rice-wheat growing area ofEastern China with two heavy epidemics in 1952 and in 1954.It was reportedfrom this area that wheat varieties showed marked differences in their susceptibilityto headblight and that native varieties in general were less susceptible than theimproved ones.It was also reported that the degree of susceptibility appeared tobe related to the stage of host development.In 1952,varieties with earlier date ofheading were generally less susceptible than those which headed late. Varietal tests for the headblight resistance were made in Nanking in 1952and 1954.In 1952,235 varieties and hybrids were studied for their resistance toscab under natural conditions in the field.Great differences were found in theirdegree of infection,although none of them was immune.The percentages of in-fected heads ranged from 0.9 to 89.1 with most of them having 10 to 40% infec-tion.No definite correlation was seen between the percentage of infection andthe date of heading or of maturing.In 1954,tests on varietal resistance to scabwere again made with 40 varieties and hybrids including those being relatively lesssusceptible in the previous test.Attempts were made to induce epidemics in thefield by means of artificial inoculation.Results indicated that both mycelial andconidial suspensions were similarly effective for artificial inoculation.The averagepercentages of infected heads in the inoculated plots ranged from 4.2 to 77.7 incontrast to the uninoculated plots where the average percentages of infected headsbeing only trace to 7.1 with one variety not infected. From the experimental results obtained in 1952 and 1954,it was found thatrelative stability in resistance to headblight existed among different wheat varie-ties,although there was great variation in varietal resistance due to the effect ofenvironmental factors.Two hybrids,"5201" and "5204",were found to be muchmore resistant than all other varieties tested in both years.Hybrid "5204" gave ??0.9% of infected heads in 1952 and 3.4% in 1954,and hybrid "5201" gave5.5 and 9.0% of infected heads in the respective years.Both hybrids also possessother desirable characteristics such as early maturity,relative high yield,stiffystems,and high resistance to the stripe rust. Greenhouse studies were made in 1954 with two susceptible varieties ofwheat for testing their susceptibility to headblight at six different stages of deve-lopment from shooting to hard dough.Results indicated that the plant was sus-ceptible at all these stages of development with a tendency of being more heavilyinfected toward maturity.It was also observed that temperature had obvious effecton the degree of infection.Plants inoculated at flowering stage were more heavilyinfected when kept at 25℃ after inoculation than when kept at 15℃.However,the inoculated plants kept at 25℃ during the day and at 15℃ at night resultedin a degree of infection similar to those kept at 25℃ all the time.